From d7c5ad7d6263fd1baf9bfdbaa4c50b70ef2fbdb2 Mon Sep 17 00:00:00 2001 From: Alexander Sulfrian Date: Tue, 8 Jun 2010 08:22:05 +0200 Subject: reverted folder structure change for better mergeing with upstream --- .../net.appjet.common/rhino/rhinospect.scala | 58 + .../net.appjet.common/util/BCrypt.java | 752 ++++++ .../net.appjet.common/util/BetterFile.java | 280 ++ .../net.appjet.common/util/ClassReload.java | 263 ++ .../net.appjet.common/util/ExpiringMapping.java | 163 ++ .../util/HttpServletRequestFactory.java | 306 +++ .../net.appjet.common/util/LenientFormatter.java | 2809 ++++++++++++++++++++ .../net.appjet.common/util/LimitedSizeMapping.java | 28 + 8 files changed, 4659 insertions(+) create mode 100644 trunk/infrastructure/net.appjet.common/rhino/rhinospect.scala create mode 100644 trunk/infrastructure/net.appjet.common/util/BCrypt.java create mode 100644 trunk/infrastructure/net.appjet.common/util/BetterFile.java create mode 100644 trunk/infrastructure/net.appjet.common/util/ClassReload.java create mode 100644 trunk/infrastructure/net.appjet.common/util/ExpiringMapping.java create mode 100644 trunk/infrastructure/net.appjet.common/util/HttpServletRequestFactory.java create mode 100644 trunk/infrastructure/net.appjet.common/util/LenientFormatter.java create mode 100644 trunk/infrastructure/net.appjet.common/util/LimitedSizeMapping.java (limited to 'trunk/infrastructure/net.appjet.common') diff --git a/trunk/infrastructure/net.appjet.common/rhino/rhinospect.scala b/trunk/infrastructure/net.appjet.common/rhino/rhinospect.scala new file mode 100644 index 0000000..65f278c --- /dev/null +++ b/trunk/infrastructure/net.appjet.common/rhino/rhinospect.scala @@ -0,0 +1,58 @@ +/** + * Copyright 2009 Google Inc. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS-IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.appjet.common.rhino; + +import java.lang.reflect.Modifier; + +object rhinospect { + + def visitFields(obj: Object, func: (String,Any)=>Unit) { + var cls: Class[_] = obj.getClass; + + if (cls.isArray) { + import java.lang.reflect.Array; + for(i <- 0 until Array.getLength(obj)) { + func(String.valueOf(i), Array.get(obj, i)); + } + } + else { + while (cls ne null) { + for (f <- cls.getDeclaredFields) { + if (! Modifier.isStatic(f.getModifiers)) { + f.setAccessible(true); + val nm = f.getName; + val vl = f.get(obj); + func(nm, vl); + } + } + cls = cls.getSuperclass; + } + } + } + + def dumpFields(obj: Object, depth: Int, prefix: String): String = { + val s = new java.io.StringWriter(); + val out = new java.io.PrintWriter(s); + visitFields(obj, (name: String, value: Any) => { + out.printf("%30s: %s\n", name+prefix, String.valueOf(value)); + if (depth > 0 && value.isInstanceOf[Object]) { + out.print(dumpFields(value.asInstanceOf[Object], depth-1, prefix+" --")); + } + }); + s.toString(); + } +} diff --git a/trunk/infrastructure/net.appjet.common/util/BCrypt.java b/trunk/infrastructure/net.appjet.common/util/BCrypt.java new file mode 100644 index 0000000..818c261 --- /dev/null +++ b/trunk/infrastructure/net.appjet.common/util/BCrypt.java @@ -0,0 +1,752 @@ +package net.appjet.common.util; + +// Copyright (c) 2006 Damien Miller +// +// Permission to use, copy, modify, and distribute this software for any +// purpose with or without fee is hereby granted, provided that the above +// copyright notice and this permission notice appear in all copies. +// +// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +import java.io.UnsupportedEncodingException; + +import java.security.SecureRandom; + +/** + * BCrypt implements OpenBSD-style Blowfish password hashing using + * the scheme described in "A Future-Adaptable Password Scheme" by + * Niels Provos and David Mazieres. + *

+ * This password hashing system tries to thwart off-line password + * cracking using a computationally-intensive hashing algorithm, + * based on Bruce Schneier's Blowfish cipher. The work factor of + * the algorithm is parameterised, so it can be increased as + * computers get faster. + *

+ * Usage is really simple. To hash a password for the first time, + * call the hashpw method with a random salt, like this: + *

+ * + * String pw_hash = BCrypt.hashpw(plain_password, BCrypt.gensalt());
+ * + *

+ * To check whether a plaintext password matches one that has been + * hashed previously, use the checkpw method: + *

+ * + * if (BCrypt.checkpw(candidate_password, stored_hash))
+ *     System.out.println("It matches");
+ * else
+ *     System.out.println("It does not match");
+ * + *

+ * The gensalt() method takes an optional parameter (log_rounds) + * that determines the computational complexity of the hashing: + *

+ * + * String strong_salt = BCrypt.gensalt(10)
+ * String stronger_salt = BCrypt.gensalt(12)
+ * + *

+ * The amount of work increases exponentially (2**log_rounds), so + * each increment is twice as much work. The default log_rounds is + * 10, and the valid range is 4 to 31. + * + * @author Damien Miller + * @version 0.2 + */ +public class BCrypt { + // BCrypt parameters + private static int GENSALT_DEFAULT_LOG2_ROUNDS = 10; + private static final int BCRYPT_SALT_LEN = 16; + + // Blowfish parameters + private static final int BLOWFISH_NUM_ROUNDS = 16; + + // Initial contents of key schedule + private static final int P_orig[] = { + 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, + 0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89, + 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c, + 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, + 0x9216d5d9, 0x8979fb1b + }; + private static final int S_orig[] = { + 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, + 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99, + 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16, + 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, + 0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee, + 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013, + 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, + 0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e, + 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60, + 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440, + 0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce, + 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a, + 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, + 0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677, + 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193, + 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, + 0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88, + 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239, + 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, + 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0, + 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3, + 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98, + 0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88, + 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe, + 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, + 0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d, + 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b, + 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, + 0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba, + 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463, + 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, + 0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09, + 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3, + 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb, + 0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279, + 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8, + 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, + 0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82, + 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db, + 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573, + 0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0, + 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b, + 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, + 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8, + 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4, + 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, + 0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7, + 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c, + 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, + 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1, + 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299, + 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, + 0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477, + 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf, + 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, + 0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af, + 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa, + 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5, + 0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41, + 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915, + 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, + 0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915, + 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664, + 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a, + 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, + 0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266, + 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1, + 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e, + 0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6, + 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1, + 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, + 0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1, + 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737, + 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, + 0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff, + 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd, + 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, + 0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7, + 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41, + 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, + 0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf, + 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af, + 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, + 0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87, + 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c, + 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, + 0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16, + 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd, + 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, + 0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509, + 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e, + 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, + 0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f, + 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a, + 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, + 0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960, + 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66, + 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28, + 0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802, + 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84, + 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, + 0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf, + 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14, + 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e, + 0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50, + 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7, + 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, + 0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281, + 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99, + 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696, + 0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128, + 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73, + 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, + 0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0, + 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105, + 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, + 0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3, + 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285, + 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, + 0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061, + 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb, + 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e, + 0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735, + 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc, + 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, + 0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340, + 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20, + 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7, + 0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934, + 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068, + 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af, + 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840, + 0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45, + 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504, + 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a, + 0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb, + 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee, + 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6, + 0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42, + 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b, + 0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, + 0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb, + 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527, + 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b, + 0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33, + 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c, + 0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3, + 0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc, + 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17, + 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564, + 0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b, + 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115, + 0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922, + 0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728, + 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0, + 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e, + 0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37, + 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d, + 0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804, + 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b, + 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3, + 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb, + 0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d, + 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c, + 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350, + 0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9, + 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a, + 0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe, + 0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d, + 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc, + 0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f, + 0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61, + 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2, + 0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9, + 0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2, + 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c, + 0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e, + 0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633, + 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10, + 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169, + 0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52, + 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027, + 0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5, + 0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62, + 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634, + 0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76, + 0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24, + 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc, + 0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4, + 0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c, + 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837, + 0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0, + 0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b, + 0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe, + 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b, + 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4, + 0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8, + 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6, + 0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304, + 0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22, + 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4, + 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6, + 0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9, + 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59, + 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593, + 0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51, + 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28, + 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c, + 0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b, + 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28, + 0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, + 0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd, + 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a, + 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319, + 0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb, + 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f, + 0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991, + 0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32, + 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680, + 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166, + 0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae, + 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb, + 0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5, + 0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47, + 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370, + 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d, + 0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84, + 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048, + 0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8, + 0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd, + 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9, + 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7, + 0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38, + 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f, + 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c, + 0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525, + 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1, + 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442, + 0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964, + 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e, + 0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, + 0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d, + 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f, + 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299, + 0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02, + 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc, + 0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614, + 0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a, + 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6, + 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b, + 0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0, + 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060, + 0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e, + 0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9, + 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f, + 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6 + }; + + // bcrypt IV: "OrpheanBeholderScryDoubt" + static private final int bf_crypt_ciphertext[] = { + 0x4f727068, 0x65616e42, 0x65686f6c, + 0x64657253, 0x63727944, 0x6f756274 + }; + + // Table for Base64 encoding + static private final char base64_code[] = { + '.', '/', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', + 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', + 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', + 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', + 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', + '6', '7', '8', '9' + }; + + // Table for Base64 decoding + static private final byte index_64[] = { + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, 0, 1, 54, 55, + 56, 57, 58, 59, 60, 61, 62, 63, -1, -1, + -1, -1, -1, -1, -1, 2, 3, 4, 5, 6, + 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, + 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, + -1, -1, -1, -1, -1, -1, 28, 29, 30, + 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, + 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, + 51, 52, 53, -1, -1, -1, -1, -1 + }; + + // Expanded Blowfish key + private int P[]; + private int S[]; + + /** + * Encode a byte array using bcrypt's slightly-modified base64 + * encoding scheme. Note that this is *not* compatible with + * the standard MIME-base64 encoding. + * + * @param d the byte array to encode + * @param len the number of bytes to encode + * @return base64-encoded string + * @exception IllegalArgumentException if the length is invalid + */ + private static String encode_base64(byte d[], int len) + throws IllegalArgumentException { + int off = 0; + StringBuffer rs = new StringBuffer(); + int c1, c2; + + if (len <= 0 || len > d.length) + throw new IllegalArgumentException ("Invalid len"); + + while (off < len) { + c1 = d[off++] & 0xff; + rs.append(base64_code[(c1 >> 2) & 0x3f]); + c1 = (c1 & 0x03) << 4; + if (off >= len) { + rs.append(base64_code[c1 & 0x3f]); + break; + } + c2 = d[off++] & 0xff; + c1 |= (c2 >> 4) & 0x0f; + rs.append(base64_code[c1 & 0x3f]); + c1 = (c2 & 0x0f) << 2; + if (off >= len) { + rs.append(base64_code[c1 & 0x3f]); + break; + } + c2 = d[off++] & 0xff; + c1 |= (c2 >> 6) & 0x03; + rs.append(base64_code[c1 & 0x3f]); + rs.append(base64_code[c2 & 0x3f]); + } + return rs.toString(); + } + + /** + * Look up the 3 bits base64-encoded by the specified character, + * range-checking againt conversion table + * @param x the base64-encoded value + * @return the decoded value of x + */ + private static byte char64(char x) { + if ((int)x < 0 || (int)x > index_64.length) + return -1; + return index_64[(int)x]; + } + + /** + * Decode a string encoded using bcrypt's base64 scheme to a + * byte array. Note that this is *not* compatible with + * the standard MIME-base64 encoding. + * @param s the string to decode + * @param maxolen the maximum number of bytes to decode + * @return an array containing the decoded bytes + * @throws IllegalArgumentException if maxolen is invalid + */ + private static byte[] decode_base64(String s, int maxolen) + throws IllegalArgumentException { + StringBuffer rs = new StringBuffer(); + int off = 0, slen = s.length(), olen = 0; + byte ret[]; + byte c1, c2, c3, c4, o; + + if (maxolen <= 0) + throw new IllegalArgumentException ("Invalid maxolen"); + + while (off < slen - 1 && olen < maxolen) { + c1 = char64(s.charAt(off++)); + c2 = char64(s.charAt(off++)); + if (c1 == -1 || c2 == -1) + break; + o = (byte)(c1 << 2); + o |= (c2 & 0x30) >> 4; + rs.append((char)o); + if (++olen >= maxolen || off >= slen) + break; + c3 = char64(s.charAt(off++)); + if (c3 == -1) + break; + o = (byte)((c2 & 0x0f) << 4); + o |= (c3 & 0x3c) >> 2; + rs.append((char)o); + if (++olen >= maxolen || off >= slen) + break; + c4 = char64(s.charAt(off++)); + o = (byte)((c3 & 0x03) << 6); + o |= c4; + rs.append((char)o); + ++olen; + } + + ret = new byte[olen]; + for (off = 0; off < olen; off++) + ret[off] = (byte)rs.charAt(off); + return ret; + } + + /** + * Blowfish encipher a single 64-bit block encoded as + * two 32-bit halves + * @param lr an array containing the two 32-bit half blocks + * @param off the position in the array of the blocks + */ + private final void encipher(int lr[], int off) { + int i, n, l = lr[off], r = lr[off + 1]; + + l ^= P[0]; + for (i = 0; i <= BLOWFISH_NUM_ROUNDS - 2;) { + // Feistel substitution on left word + n = S[(l >> 24) & 0xff]; + n += S[0x100 | ((l >> 16) & 0xff)]; + n ^= S[0x200 | ((l >> 8) & 0xff)]; + n += S[0x300 | (l & 0xff)]; + r ^= n ^ P[++i]; + + // Feistel substitution on right word + n = S[(r >> 24) & 0xff]; + n += S[0x100 | ((r >> 16) & 0xff)]; + n ^= S[0x200 | ((r >> 8) & 0xff)]; + n += S[0x300 | (r & 0xff)]; + l ^= n ^ P[++i]; + } + lr[off] = r ^ P[BLOWFISH_NUM_ROUNDS + 1]; + lr[off + 1] = l; + } + + /** + * Cycically extract a word of key material + * @param data the string to extract the data from + * @param offp a "pointer" (as a one-entry array) to the + * current offset into data + * @return the next word of material from data + */ + private static int streamtoword(byte data[], int offp[]) { + int i; + int word = 0; + int off = offp[0]; + + for (i = 0; i < 4; i++) { + word = (word << 8) | (data[off] & 0xff); + off = (off + 1) % data.length; + } + + offp[0] = off; + return word; + } + + /** + * Initialise the Blowfish key schedule + */ + private void init_key() { + P = (int[])P_orig.clone(); + S = (int[])S_orig.clone(); + } + + /** + * Key the Blowfish cipher + * @param key an array containing the key + */ + private void key(byte key[]) { + int i; + int koffp[] = { 0 }; + int lr[] = { 0, 0 }; + int plen = P.length, slen = S.length; + + for (i = 0; i < plen; i++) + P[i] = P[i] ^ streamtoword(key, koffp); + + for (i = 0; i < plen; i += 2) { + encipher(lr, 0); + P[i] = lr[0]; + P[i + 1] = lr[1]; + } + + for (i = 0; i < slen; i += 2) { + encipher(lr, 0); + S[i] = lr[0]; + S[i + 1] = lr[1]; + } + } + + /** + * Perform the "enhanced key schedule" step described by + * Provos and Mazieres in "A Future-Adaptable Password Scheme" + * http://www.openbsd.org/papers/bcrypt-paper.ps + * @param data salt information + * @param key password information + */ + private void ekskey(byte data[], byte key[]) { + int i; + int koffp[] = { 0 }, doffp[] = { 0 }; + int lr[] = { 0, 0 }; + int plen = P.length, slen = S.length; + + for (i = 0; i < plen; i++) + P[i] = P[i] ^ streamtoword(key, koffp); + + for (i = 0; i < plen; i += 2) { + lr[0] ^= streamtoword(data, doffp); + lr[1] ^= streamtoword(data, doffp); + encipher(lr, 0); + P[i] = lr[0]; + P[i + 1] = lr[1]; + } + + for (i = 0; i < slen; i += 2) { + lr[0] ^= streamtoword(data, doffp); + lr[1] ^= streamtoword(data, doffp); + encipher(lr, 0); + S[i] = lr[0]; + S[i + 1] = lr[1]; + } + } + + /** + * Perform the central password hashing step in the + * bcrypt scheme + * @param password the password to hash + * @param salt the binary salt to hash with the password + * @param log_rounds the binary logarithm of the number + * of rounds of hashing to apply + * @return an array containing the binary hashed password + */ + private byte[] crypt_raw(byte password[], byte salt[], int log_rounds) { + int rounds, i, j; + int cdata[] = (int[])bf_crypt_ciphertext.clone(); + int clen = cdata.length; + byte ret[]; + + if (log_rounds < 4 || log_rounds > 31) + throw new IllegalArgumentException ("Bad number of rounds"); + rounds = 1 << log_rounds; + if (salt.length != BCRYPT_SALT_LEN) + throw new IllegalArgumentException ("Bad salt length"); + + init_key(); + ekskey(salt, password); + for (i = 0; i < rounds; i++) { + key(password); + key(salt); + } + + for (i = 0; i < 64; i++) { + for (j = 0; j < (clen >> 1); j++) + encipher(cdata, j << 1); + } + + ret = new byte[clen * 4]; + for (i = 0, j = 0; i < clen; i++) { + ret[j++] = (byte)((cdata[i] >> 24) & 0xff); + ret[j++] = (byte)((cdata[i] >> 16) & 0xff); + ret[j++] = (byte)((cdata[i] >> 8) & 0xff); + ret[j++] = (byte)(cdata[i] & 0xff); + } + return ret; + } + + /** + * Hash a password using the OpenBSD bcrypt scheme + * @param password the password to hash + * @param salt the salt to hash with (perhaps generated + * using BCrypt.gensalt) + * @return the hashed password + */ + public static String hashpw(String password, String salt) { + BCrypt B; + String real_salt; + byte passwordb[], saltb[], hashed[]; + char minor = (char)0; + int rounds, off = 0; + StringBuffer rs = new StringBuffer(); + + if (salt.charAt(0) != '$' || salt.charAt(1) != '2') + throw new IllegalArgumentException ("Invalid salt version"); + if (salt.charAt(1) != '$') { + minor = salt.charAt(2); + if (minor != 'a' || salt.charAt(3) != '$') + throw new IllegalArgumentException ("Invalid salt revision"); + off = 4; + } else + off = 3; + + // Extract number of rounds + if (salt.charAt(off + 2) > '$') + throw new IllegalArgumentException ("Missing salt rounds"); + rounds = Integer.parseInt(salt.substring(off, off + 2)); + + real_salt = salt.substring(off + 3, off + 25); + try { + passwordb = (password + (minor >= 'a' ? "\000" : "")).getBytes("US-ASCII"); + } catch (UnsupportedEncodingException uee) { + // The JDK guarantees that US-ASCII is supported. + throw new AssertionError("US-ASCII is not supported"); + } + + saltb = decode_base64(real_salt, BCRYPT_SALT_LEN); + + B = new BCrypt(); + hashed = B.crypt_raw(passwordb, saltb, rounds); + + rs.append("$2"); + if (minor >= 'a') + rs.append(minor); + rs.append("$"); + if (rounds < 10) + rs.append("0"); + rs.append(Integer.toString(rounds)); + rs.append("$"); + rs.append(encode_base64(saltb, saltb.length)); + rs.append(encode_base64(hashed, + bf_crypt_ciphertext.length * 4 - 1)); + return rs.toString(); + } + + /** + * Generate a salt for use with the BCrypt.hashpw() method + * @param log_rounds the log2 of the number of rounds of + * hashing to apply - the work factor therefore increases as + * 2**log_rounds. + * @param random an instance of SecureRandom to use + * @return an encoded salt value + */ + public static String gensalt(int log_rounds, SecureRandom random) { + StringBuffer rs = new StringBuffer(); + byte rnd[] = new byte[BCRYPT_SALT_LEN]; + + random.nextBytes(rnd); + + rs.append("$2a$"); + if (log_rounds < 10) + rs.append("0"); + rs.append(Integer.toString(log_rounds)); + rs.append("$"); + rs.append(encode_base64(rnd, rnd.length)); + return rs.toString(); + } + + /** + * Generate a salt for use with the BCrypt.hashpw() method + * @param log_rounds the log2 of the number of rounds of + * hashing to apply - the work factor therefore increases as + * 2**log_rounds. + * @return an encoded salt value + */ + public static String gensalt(int log_rounds) { + return gensalt(log_rounds, new SecureRandom()); + } + + /** + * Generate a salt for use with the BCrypt.hashpw() method, + * selecting a reasonable default for the number of hashing + * rounds to apply + * @return an encoded salt value + */ + public static String gensalt() { + return gensalt(GENSALT_DEFAULT_LOG2_ROUNDS); + } + + /** + * Check that a plaintext password matches a previously hashed + * one + * @param plaintext the plaintext password to verify + * @param hashed the previously-hashed password + * @return true if the passwords match, false otherwise + */ + public static boolean checkpw(String plaintext, String hashed) { + return (hashed.compareTo(hashpw(plaintext, hashed)) == 0); + } +} diff --git a/trunk/infrastructure/net.appjet.common/util/BetterFile.java b/trunk/infrastructure/net.appjet.common/util/BetterFile.java new file mode 100644 index 0000000..c674810 --- /dev/null +++ b/trunk/infrastructure/net.appjet.common/util/BetterFile.java @@ -0,0 +1,280 @@ +/** + * Copyright 2009 Google Inc. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS-IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.appjet.common.util; + +import java.io.BufferedReader; +import java.io.ByteArrayOutputStream; +import java.io.File; +import java.io.FileInputStream; +import java.io.FileNotFoundException; +import java.io.InputStream; +import java.io.InputStreamReader; +import java.io.IOException; +import java.io.*; + + +/** + * A bunch of stuff that should've been in the Java Standard Libraries. + */ +public class BetterFile { + public static String getFileContents(File f, boolean t) throws FileNotFoundException { + FileInputStream in; + try { + in = new FileInputStream(f); + } catch (FileNotFoundException e) { + if (t) throw e; + return null; + } + return getStreamContents(in); + } + + public static String getFileContents(File f) { + try { + return getFileContents(f, false); + } catch (FileNotFoundException e) { + // won't ever get here. + } + return null; + } + + public static String getBinaryFileContents(File f) { + FileInputStream in; + try { + in = new FileInputStream(f); + } catch (FileNotFoundException e) { + e.printStackTrace(); + return null; + } + + return getBinaryStreamContents(in); + } + + // Using the non-converting String contructor here. Yum. + @SuppressWarnings({"deprecation"}) + public static String getBinaryStreamContents(InputStream in) { + StringBuilder out = new StringBuilder(); + byte[] b = new byte[4096]; + try { + for (int n; (n = in.read(b)) != -1 ;) { + out.append(new String(b, 0, 0, n)); + } + } catch (IOException e) { + e.printStackTrace(); + return null; + } + return out.toString(); + } + + public static String getStreamContents(InputStream instream) { + InputStreamReader in = new InputStreamReader(instream, java.nio.charset.Charset.forName("UTF-8")); + StringBuilder out = new StringBuilder(); + + char[] b = new char[4096]; + try { + for (int n; (n = in.read(b)) != -1; ){ + out.append(b, 0, n); + } + in.close(); + } catch (IOException e) { + e.printStackTrace(); + return null; + } + return out.toString(); + } + + public static String getBinaryFileContents(String filename) { + return getBinaryFileContents(new File(filename)); + } + + public static String getFileContents(String filename) { + return getFileContents(new File(filename)); + } + + public static String getFileContents(String filename, boolean t) throws FileNotFoundException { + return getFileContents(new File(filename), t); + } + + public static byte[] getStreamBytes(InputStream instream) { + byte[] b = new byte[8192]; + ByteArrayOutputStream baos = new ByteArrayOutputStream(16384); + try { + for (int n; (n = instream.read(b)) != -1;) { + baos.write(b, 0, n); + } + instream.close(); + } catch (IOException e) { + e.printStackTrace(); + return null; + } + return baos.toByteArray(); + } + + public static String getReaderString(BufferedReader reader) { + StringBuffer out = new StringBuffer(); + char[] c = new char[8192]; + try { + for (int n; (n = reader.read(c, 0, c.length)) != -1;) { + out.append(c, 0, n); + } + reader.close(); + } catch (IOException e) { + e.printStackTrace(); + return null; + } + return out.toString(); + } + + public static byte[] getFileBytes(File f) { + try { + return getStreamBytes(new FileInputStream(f)); + } catch (IOException e) { + e.printStackTrace(); + return null; + } + } + + public static byte[] getFileBytes(String filename) { + return getFileBytes(new File(filename)); + } + + public static String getUnicodeFile(File f) throws FileNotFoundException { + return getReaderString(new BufferedReader(new UnicodeReader(new FileInputStream(f), null))); + } + + public static String getUnicodeFile(String filename) throws FileNotFoundException { + return getUnicodeFile(new File(filename)); + } + + public static String stringFromUnicode(byte[] bytes) { + return getReaderString(new BufferedReader(new UnicodeReader(new ByteArrayInputStream(bytes), null))); + } + + // Ripped from: http://koti.mbnet.fi/akini/java/unicodereader/ + /** + version: 1.1 / 2007-01-25 + - changed BOM recognition ordering (longer boms first) + + Original pseudocode : Thomas Weidenfeller + Implementation tweaked: Aki Nieminen + + http://www.unicode.org/unicode/faq/utf_bom.html + BOMs: + 00 00 FE FF = UTF-32, big-endian + FF FE 00 00 = UTF-32, little-endian + EF BB BF = UTF-8, + FE FF = UTF-16, big-endian + FF FE = UTF-16, little-endian + + Win2k Notepad: + Unicode format = UTF-16LE + ***/ + + /** + * Generic unicode textreader, which will use BOM mark + * to identify the encoding to be used. If BOM is not found + * then use a given default or system encoding. + */ + public static class UnicodeReader extends Reader { + PushbackInputStream internalIn; + InputStreamReader internalIn2 = null; + String defaultEnc; + + private static final int BOM_SIZE = 4; + + /** + * + * @param in inputstream to be read + * @param defaultEnc default encoding if stream does not have + * BOM marker. Give NULL to use system-level default. + */ + UnicodeReader(InputStream in, String defaultEnc) { + internalIn = new PushbackInputStream(in, BOM_SIZE); + this.defaultEnc = defaultEnc; + } + + public String getDefaultEncoding() { + return defaultEnc; + } + + /** + * Get stream encoding or NULL if stream is uninitialized. + * Call init() or read() method to initialize it. + */ + public String getEncoding() { + if (internalIn2 == null) return null; + return internalIn2.getEncoding(); + } + + /** + * Read-ahead four bytes and check for BOM marks. Extra bytes are + * unread back to the stream, only BOM bytes are skipped. + */ + protected void init() throws IOException { + if (internalIn2 != null) return; + + String encoding; + byte bom[] = new byte[BOM_SIZE]; + int n, unread; + n = internalIn.read(bom, 0, bom.length); + + if ( (bom[0] == (byte)0x00) && (bom[1] == (byte)0x00) && + (bom[2] == (byte)0xFE) && (bom[3] == (byte)0xFF) ) { + encoding = "UTF-32BE"; + unread = n - 4; + } else if ( (bom[0] == (byte)0xFF) && (bom[1] == (byte)0xFE) && + (bom[2] == (byte)0x00) && (bom[3] == (byte)0x00) ) { + encoding = "UTF-32LE"; + unread = n - 4; + } else if ( (bom[0] == (byte)0xEF) && (bom[1] == (byte)0xBB) && + (bom[2] == (byte)0xBF) ) { + encoding = "UTF-8"; + unread = n - 3; + } else if ( (bom[0] == (byte)0xFE) && (bom[1] == (byte)0xFF) ) { + encoding = "UTF-16BE"; + unread = n - 2; + } else if ( (bom[0] == (byte)0xFF) && (bom[1] == (byte)0xFE) ) { + encoding = "UTF-16LE"; + unread = n - 2; + } else { + // Unicode BOM mark not found, unread all bytes + encoding = defaultEnc; + unread = n; + } + //System.out.println("read=" + n + ", unread=" + unread); + + if (unread > 0) internalIn.unread(bom, (n - unread), unread); + + // Use given encoding + if (encoding == null) { + internalIn2 = new InputStreamReader(internalIn); + } else { + internalIn2 = new InputStreamReader(internalIn, encoding); + } + } + + public void close() throws IOException { + init(); + internalIn2.close(); + } + + public int read(char[] cbuf, int off, int len) throws IOException { + init(); + return internalIn2.read(cbuf, off, len); + } + + } +} diff --git a/trunk/infrastructure/net.appjet.common/util/ClassReload.java b/trunk/infrastructure/net.appjet.common/util/ClassReload.java new file mode 100644 index 0000000..3fbc480 --- /dev/null +++ b/trunk/infrastructure/net.appjet.common/util/ClassReload.java @@ -0,0 +1,263 @@ +/** + * Copyright 2009 Google Inc. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS-IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.appjet.common.util; + +import java.io.*; +import java.util.*; +import java.lang.reflect.*; + +public class ClassReload { + + /** + * To use: Optionally call initCompilerArgs, just like command-line + * starting after "scalac" or "fsc", do not use "-d", you may + * want to use "-classpath"/"-cp", no source files. Then call + * compile(...). Then load classes. isUpToDate() will tell you + * if source files have changed since compilation. If you want + * to compile again, use recompile() to create a new class-loader so that + * you can have new versions of existing classes. The class-loader + * behavior is to load classes that were generated during compilation + * using the output of compilation, and delegate all other classes to + * the parent loader. + */ + public static class ScalaSourceClassLoader extends ClassLoader { + public ScalaSourceClassLoader(ClassLoader parent) { + super(parent); + } + public ScalaSourceClassLoader() { + this(ScalaSourceClassLoader.class.getClassLoader()); + } + + private List compilerArgs = Collections.emptyList(); + private List sourceFileList = Collections.emptyList(); + + private Map sourceFileMap = new HashMap(); + private Map outputFileMap = new HashMap(); + + private boolean successfulCompile = false; + + public void initCompilerArgs(String... args) { + compilerArgs = new ArrayList(); + for(String a : args) compilerArgs.add(a); + } + + public boolean compile(String... sourceFiles) { + sourceFileList = new ArrayList(); + for(String a : sourceFiles) sourceFileList.add(a); + + sourceFileMap.clear(); + outputFileMap.clear(); + + File tempDir = makeTemporaryDir(); + try { + List argsToPass = new ArrayList(); + argsToPass.add("-d"); + argsToPass.add(tempDir.getAbsolutePath()); + argsToPass.addAll(compilerArgs); + for(String sf : sourceFileList) { + File f = new File(sf).getAbsoluteFile(); + sourceFileMap.put(f, f.lastModified()); + argsToPass.add(f.getPath()); + } + String[] argsToPassArray = argsToPass.toArray(new String[0]); + + int compileResult = invokeFSC(argsToPassArray); + + if (compileResult != 0) { + successfulCompile = false; + return false; + } + + for(String outputFile : listRecursive(tempDir)) { + outputFileMap.put(outputFile, + getFileBytes(new File(tempDir, outputFile))); + } + + successfulCompile = true; + return true; + } + finally { + deleteRecursive(tempDir); + } + } + + public ScalaSourceClassLoader recompile() { + ScalaSourceClassLoader sscl = new ScalaSourceClassLoader(getParent()); + sscl.initCompilerArgs(compilerArgs.toArray(new String[0])); + sscl.compile(sourceFileList.toArray(new String[0])); + return sscl; + } + + public boolean isSuccessfulCompile() { + return successfulCompile; + } + + public boolean isUpToDate() { + for(Map.Entry entry : sourceFileMap.entrySet()) { + long mod = entry.getKey().lastModified(); + if (mod == 0 || mod > entry.getValue()) { + return false; + } + } + return true; + } + + @Override protected synchronized Class loadClass(String name, + boolean resolve) + throws ClassNotFoundException { + + // Based on java.lang.ClassLoader.loadClass(String,boolean) + + // First, check if the class has already been loaded + Class c = findLoadedClass(name); + if (c == null) { + String fileName = name.replace('.','/')+".class"; + if (outputFileMap.containsKey(fileName)) { + // define it ourselves + byte b[] = outputFileMap.get(fileName); + c = defineClass(name, b, 0, b.length); + } + } + if (c != null) { + if (resolve) { + resolveClass(c); + } + return c; + } + else { + // use super behavior + return super.loadClass(name, resolve); + } + } + } + + private static byte[] readStreamFully(InputStream in) throws IOException { + InputStream from = new BufferedInputStream(in); + ByteArrayOutputStream to = new ByteArrayOutputStream(in.available()); + ferry(from, to); + return to.toByteArray(); + } + + private static void ferry(InputStream from, OutputStream to) + throws IOException { + + byte[] buf = new byte[1024]; + boolean done = false; + while (! done) { + int numRead = from.read(buf); + if (numRead < 0) { + done = true; + } + else { + to.write(buf, 0, numRead); + } + } + from.close(); + to.close(); + } + + private static Class classForName(String name) { + try { + return Class.forName(name); + } + catch (ClassNotFoundException e) { + throw new RuntimeException(e); + } + } + + static boolean deleteRecursive(File f) { + if(f.exists()) { + File[] files = f.listFiles(); + for(File g : files) { + if(g.isDirectory()) { + deleteRecursive(g); + } + else { + g.delete(); + } + } + } + return f.delete(); + } + + static byte[] getFileBytes(File f) { + try { + return readStreamFully(new FileInputStream(f)); + } + catch (IOException e) { + throw new RuntimeException(e); + } + } + + static List listRecursive(File dir) { + List L = new ArrayList(); + listRecursive(dir, "", L); + return L; + } + + static void listRecursive(File dir, String prefix, Collection drop) { + for(File f : dir.listFiles()) { + if (f.isDirectory()) { + listRecursive(f, prefix + f.getName() + "/", drop); + } + else { + drop.add(prefix + f.getName()); + } + } + } + + static File makeTemporaryDir() { + try { + File f = File.createTempFile("ajclsreload", "").getAbsoluteFile(); + if (! f.delete()) + throw new RuntimeException("error creating temp dir"); + if (! f.mkdir()) + throw new RuntimeException("error creating temp dir"); + return f; + } + catch (IOException e) { + throw new RuntimeException("error creating temp dir"); + } + } + + private static int invokeFSC(String[] args) { + try { + Class fsc = + Class.forName("scala.tools.nsc.StandardCompileClient"); + Object compiler = fsc.newInstance(); + Method main0Method = fsc.getMethod("main0", String[].class); + return (Integer)main0Method.invoke(compiler, (Object)args); + } + catch (ClassNotFoundException e) { throw new RuntimeException(e); } + catch (InstantiationException e) { throw new RuntimeException(e); } + catch (NoSuchMethodException e) { throw new RuntimeException(e); } + catch (IllegalAccessException e) { throw new RuntimeException(e); } + catch (InvocationTargetException e) { + Throwable origThrowable = e.getCause(); + if (origThrowable == null) throw new RuntimeException(e); + else if (origThrowable instanceof Error) { + throw (Error)origThrowable; + } + else if (origThrowable instanceof RuntimeException) { + throw (RuntimeException)origThrowable; + } + else { + throw new RuntimeException(origThrowable); + } + } + } +} \ No newline at end of file diff --git a/trunk/infrastructure/net.appjet.common/util/ExpiringMapping.java b/trunk/infrastructure/net.appjet.common/util/ExpiringMapping.java new file mode 100644 index 0000000..d4b9d5a --- /dev/null +++ b/trunk/infrastructure/net.appjet.common/util/ExpiringMapping.java @@ -0,0 +1,163 @@ +/** + * Copyright 2009 Google Inc. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS-IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.appjet.common.util; + +import java.util.*; + +// this class is synchronized + +public class ExpiringMapping { + + private Map keyToValue = + new HashMap(); + private SortedMap timeToKey= new TreeMap(); + + private long lastTimeStamp = 0; + + private ExpiryPolicy policy; + + public ExpiringMapping(final long maxAgeMillis) { + this(new ExpiryPolicy() { + public boolean hasExpired(long timeStamp, long now, int rank) { + return now - timeStamp > maxAgeMillis; + } + }); + } + + protected ExpiringMapping(ExpiryPolicy policy) { + this.policy = policy; + } + + public synchronized void clear() { + keyToValue.clear(); + timeToKey.clear(); + } + + public synchronized void put(K key, V value) { + TimeStampedValue old = keyToValue.get(key); + if (old != null) { + timeToKey.remove(old.getTimeStamp()); + } + TimeStampedValue newVal = new TimeStampedValue(value); + keyToValue.put(key, newVal); + timeToKey.put(newVal.getTimeStamp(), key); + checkExpiry(); + } + + public synchronized void touch(K key) { + TimeStampedValue old = keyToValue.get(key); + if (old != null) { + put(key, old.getValue()); + } + } + + public synchronized void remove(Object key) { + TimeStampedValue old = keyToValue.get(key); + if (old != null) { + keyToValue.remove(key); + timeToKey.remove(old.getTimeStamp()); + } + } + + // doesn't "touch" key or trigger expiry of expired items + public synchronized V get(Object key) { + if (keyToValue.containsKey(key)) { + return keyToValue.get(key).getValue(); + } else { + return null; + } + } + + public synchronized boolean containsKey(Object key) { + return keyToValue.containsKey(key); + } + + public synchronized void checkExpiry() { + while (timeToKey.size() > 0) { + long oldestTime = timeToKey.firstKey(); + if (hasExpired(oldestTime, timeToKey.size())) { + remove(timeToKey.get(oldestTime)); + } + else { + break; + } + } + } + + // lists keys in time order, oldest to newest + public synchronized List listAllKeys() { + List keyList = new java.util.ArrayList(timeToKey.size()); + for(Map.Entry entry : timeToKey.entrySet()) { + keyList.add(entry.getValue()); + } + return Collections.unmodifiableList(keyList); + } + + // result must be monotonic + private boolean hasExpired(long time, int rank) { + return policy.hasExpired(time, System.currentTimeMillis(), rank); + } + + private long nowTimeStamp() { + // return "now", but unique + long now = System.currentTimeMillis(); + if (now <= lastTimeStamp) { + now = lastTimeStamp+1; + } + lastTimeStamp = now; + return now; + } + + private class TimeStampedValue { + private final V value; + private long timeStamp; + private TimeStampedValue(V value) { + this(value, nowTimeStamp()); + } + private TimeStampedValue(V value, long timeStamp) { + this.value = value; this.timeStamp = timeStamp; + } + public void setTimeStamp(long ts) { + timeStamp = ts; + } + public long getTimeStamp() { + return timeStamp; + } + public V getValue() { + return value; + } + public String toString() { + return "("+value+", "+new Date(timeStamp)+")"; + } + } + + public synchronized String toString() { + return keyToValue.toString(); + } + + protected interface ExpiryPolicy { + // result must be monotonic wrt timeStamp given now + boolean hasExpired(long timeStamp, long now, int rank); + } + +} + + /*private static int compareLongs(long a, long b) { + if (a < b) return -1; + if (a > b) return 1; + return 0; + }*/ diff --git a/trunk/infrastructure/net.appjet.common/util/HttpServletRequestFactory.java b/trunk/infrastructure/net.appjet.common/util/HttpServletRequestFactory.java new file mode 100644 index 0000000..4d7826a --- /dev/null +++ b/trunk/infrastructure/net.appjet.common/util/HttpServletRequestFactory.java @@ -0,0 +1,306 @@ +/** + * Copyright 2009 Google Inc. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS-IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.appjet.common.util; + +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; +import java.net.URL; +import java.net.URI; +import java.net.URLDecoder; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.Enumeration; +import java.util.Collections; +import java.util.Locale; +import java.util.Iterator; +import java.util.Vector; + +public class HttpServletRequestFactory { + public static class RequestResponse { + public final HttpServletRequest request; + public final HttpServletResponse response; + + private RequestResponse(HttpServletRequest req, HttpServletResponse res) { + request = req; + response = res; + } + } + + public static HttpServletRequest createRequest(String uri, Map headers, + String method, String body) + throws java.net.URISyntaxException { + return new InnerHttpServletRequest(new URI(uri), headers, method, body); + } + + public static HttpServletRequest createRequest(HttpServletRequest req) + throws java.net.URISyntaxException { + Map headers = new java.util.HashMap(); + Enumeration headerNames = (Enumeration) req.getHeaderNames(); + while (headerNames.hasMoreElements()) { + String e = headerNames.nextElement(); + headers.put(e, req.getHeader(e)); + } + return createRequest( + req.getRequestURL() + + (req.getQueryString() != null ? "?"+req.getQueryString() : ""), + headers, req.getMethod(), null); + } + + public static HttpServletResponse createResponse() { + return new InnerHttpServletResponse(); + } + + public static RequestResponse createPair(String uri, Map headers, + String method, String body) + throws java.net.URISyntaxException { + return new RequestResponse(createRequest(uri, headers, method, body), createResponse()); + } + + public static interface ServletAccessor { + int getStatusCode(); + String getOutput(); + } + + private static class InnerHttpServletRequest implements HttpServletRequest { + private String method; + private String host; + private String scheme; + private int port; + private String path; + private String queryString; + private Map parameters; + private Map headers; + private final String body; + + public InnerHttpServletRequest(URI uri, Map headers, String method, + String body) + throws java.net.URISyntaxException { + this.method = method; + this.host = uri.getHost(); + this.scheme = uri.getScheme(); + this.port = uri.getPort(); + this.path = uri.getRawPath(); + this.queryString = uri.getRawQuery(); + extractParameters(); + extractHeaders(headers); + this.headers.put("host", host); + if (body != null) + this.headers.put("content-length", Integer.toString(body.length())); + this.body = body; + } + + private void extractHeaders(Map headers) { + this.headers = new HashMap(); + for (Map.Entry kv : headers.entrySet()) { + this.headers.put(kv.getKey().toLowerCase(), kv.getValue()); + } + } + + private String decodeUTF8(String s) { + try { + return URLDecoder.decode(s, "UTF-8"); + } catch (java.io.UnsupportedEncodingException e) { + System.err.println("Unsupported character encoding! UTF-8"); + return s; + } + } + + private void extractParameters() { + parameters = new HashMap(); + if (queryString == null) + return; + + Map > params = new HashMap >(); + String[] pairs = queryString.split("&"); + for (String s : pairs) { + String[] kv = s.split("=", 2); + if (! params.containsKey(kv[0])) { + params.put(decodeUTF8(kv[0]), new ArrayList()); + } + params.get(decodeUTF8(kv[0])).add(decodeUTF8(kv[1])); + } + String[] stringArray = new String[0]; + + for (Map.Entry > e : params.entrySet()) { + parameters.put(e.getKey(), e.getValue().toArray(stringArray)); + } + } + + // HttpServletRequest methods + public String getAuthType() { return null; } + public String getContextPath() { return ""; } + public javax.servlet.http.Cookie[] getCookies() { return new javax.servlet.http.Cookie[0]; } + @SuppressWarnings({"deprecation"}) + public long getDateHeader(String name) { return java.util.Date.parse(getHeader(name)); } + public String getHeader(String name) { return headers.get(name.toLowerCase()); } + public Enumeration getHeaders(String name) { + Vector v = new Vector(); + v.add(getHeader(name)); + return v.elements(); + } + public Enumeration getHeaderNames() { + return Collections.enumeration(headers.keySet()); + } + public int getIntHeader(String name) { return Integer.parseInt(getHeader(name)); } + public String getMethod() { return method.toUpperCase(); } + public String getPathInfo() { return null; } + public String getPathTranslated() { return null; } + public String getQueryString() { return queryString; } + public String getRemoteUser() { return null; } + public boolean isUserInRole(String role) { return false; } + public java.security.Principal getUserPrincipal() { return null; } + public String getRequestedSessionId() { return null; } + public String getRequestURI() { return path; } + public StringBuffer getRequestURL() { + return new StringBuffer(scheme+"://"+host+(port==-1?"":":"+port)+path); + } + public String getServletPath() { return ""; } + public javax.servlet.http.HttpSession getSession(boolean create) { return null; } + public javax.servlet.http.HttpSession getSession() { return null; } + public boolean isRequestedSessionIdValid() { return false; } + public boolean isRequestedSessionIdFromCookie() { return false; } + public boolean isRequestedSessionIdFromURL() { return false; } + public boolean isRequestedSessionIdFromUrl() { return isRequestedSessionIdFromURL(); } + + // ServletRequest methods + public Object getAttribute(String name) { return null; } + public Enumeration getAttributeNames() { + return Collections.enumeration(new ArrayList()); + } + public String getCharacterEncoding() { return null; } + public void setCharacterEncoding(String env) { } + public int getContentLength() { + return ((getHeader("Content-Length") == null) + ? (body == null ? 0 : body.length()) + : getIntHeader("Content-Length")); + } + public String getContentType() { return getHeader("Content-Type"); } + public javax.servlet.ServletInputStream getInputStream() throws java.io.IOException{ + return new javax.servlet.ServletInputStream() { + private java.io.InputStream istream = + new java.io.ByteArrayInputStream(body.getBytes()); + public int read() throws java.io.IOException { + return istream.read(); + } + }; + } + public String getParameter(String name) { + String[] vals = getParameterValues(name); + if (vals == null) return null; + if (vals.length < 1) return null; + return vals[0]; + } + public Enumeration getParameterNames() { + return Collections.enumeration(parameters.keySet()); + } + public String[] getParameterValues(String name) { return parameters.get(name); } + public Map getParameterMap() { return Collections.unmodifiableMap(parameters); } + public String getProtocol() { return "HTTP/1.1"; } + public String getScheme() { return scheme; } + public String getServerName() { return host; } + public int getServerPort() { return port; } + public java.io.BufferedReader getReader() { + return new java.io.BufferedReader(new java.io.StringReader(body)); + } + public String getRemoteAddr() { return "127.0.0.1"; } + public String getRemoteHost() { return "localhost"; } + public void setAttribute(String name, Object o) { } + public void removeAttribute(String name) { } + public java.util.Locale getLocale() { return java.util.Locale.US; } + public Enumeration getLocales() { + Vector v = new Vector(); + v.add(java.util.Locale.US); + return v.elements(); + } + public boolean isSecure() { return false; } + public javax.servlet.RequestDispatcher getRequestDispatcher(String path) { return null; } + public String getRealPath(String path) { return null; } + public int getRemotePort() { return -1; } + public String getLocalName() { return "localhost"; } + public String getLocalAddr() { return "127.0.0.1"; } + public int getLocalPort() { return 80; } + } + + private static class InnerHttpServletResponse implements HttpServletResponse, ServletAccessor { + private InnerHttpServletResponse() { } + + // ServletAccessor methods + public int getStatusCode() { return e_code; } + public String getOutput() { + try { + writer.flush(); + ostream.flush(); + } catch (java.io.IOException e) { + return "(An IOException occurred while getting output: "+e.getMessage()+")"; + } + return ostream.toString(); + } + + // HttpServletResponse methods + private int e_code = 200; + private String e_msg = ""; + + public void addCookie(javax.servlet.http.Cookie cookie) { } + public void addDateHeader(String name, long date) { } + public void addHeader(String name, String value) { } + public void addIntHeader(String name, int value) { } + public boolean containsHeader(String name) { return true; } + public String encodeRedirectUrl(String url) { return encodeRedirectURL(url); } + public String encodeRedirectURL(String url) { return url; } + public String encodeUrl(String url) { return encodeURL(url); } + public String encodeURL(String url) { return url; } + public void sendError(int sc) { e_code = sc; } + public void sendError(int sc, String msg) { e_code = sc; e_msg = msg;} + public void sendRedirect(String location) { } + public void setDateHeader(String name, long date) { } + public void setHeader(String name, String value) { } + public void setIntHeader(String name, int value) { } + public void setStatus(int sc) { e_code = sc; } + public void setStatus(int sc, String sm) { e_code = sc; e_msg = sm; } + + // ServletResponse methods + private String c_enc = ""; + private String c_type = ""; + private java.util.Locale locale = java.util.Locale.US; + private final java.io.OutputStream ostream = new java.io.ByteArrayOutputStream(); + private final javax.servlet.ServletOutputStream sostream = + new javax.servlet.ServletOutputStream() { + public void write(int b) throws java.io.IOException { + ostream.write(b); + } + }; + private final java.io.PrintWriter writer = new java.io.PrintWriter(ostream); + + public void flushBuffer() { } + public int getBufferSize() { return 0; } + public String getCharacterEncoding() { return c_enc; } + public String getContentType() { return c_type; } + public java.util.Locale getLocale() { return locale; } + public javax.servlet.ServletOutputStream getOutputStream() { return sostream; } + public java.io.PrintWriter getWriter() { return writer; } + public boolean isCommitted() { return false; } + public void reset() { } + public void resetBuffer() { } + public void setBufferSize(int size) { } + public void setCharacterEncoding(String charset) { c_enc = charset; } + public void setContentLength(int len) { } + public void setContentType(String type) { c_type = type; } + public void setLocale(java.util.Locale loc) { locale = loc; } + } +} \ No newline at end of file diff --git a/trunk/infrastructure/net.appjet.common/util/LenientFormatter.java b/trunk/infrastructure/net.appjet.common/util/LenientFormatter.java new file mode 100644 index 0000000..293dcdf --- /dev/null +++ b/trunk/infrastructure/net.appjet.common/util/LenientFormatter.java @@ -0,0 +1,2809 @@ +/* Portions Copyright 2009 Google Inc. + * The rest licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF and Google license this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package net.appjet.common.util; + +import java.util.*; +import java.io.BufferedWriter; +import java.io.Closeable; +import java.io.File; +import java.io.FileNotFoundException; +import java.io.FileOutputStream; +import java.io.Flushable; +import java.io.IOException; +import java.io.OutputStream; +import java.io.OutputStreamWriter; +import java.io.PrintStream; +import java.io.UnsupportedEncodingException; +import java.math.BigDecimal; +import java.math.BigInteger; +import java.math.MathContext; +import java.nio.CharBuffer; +import java.nio.charset.Charset; +import java.security.AccessController; +import java.security.PrivilegedAction; +import java.text.DateFormatSymbols; +import java.text.DecimalFormat; +import java.text.DecimalFormatSymbols; +import java.text.NumberFormat; + +/** + *

The {@code LenientFormatter} class is a copy of {@code java.util.Formatter} + * that is lenient in the exact type of {@code java.lang.Number} passed into + * certain flags (integer, floating point, date, and character formats).

+ * + *

The {@code Formatter} class is a String-formatting utility that is designed + * to work like the {@code printf} function of the C programming language. + * Its key methods are the {@code format} methods which create a formatted + * {@code String} by replacing a set of placeholders (format tokens) with formatted + * values. The style used to format each value is determined by the format + * token used. For example, the call
+ * {@code format("My decimal value is %d and my String is %s.", 3, "Hello");}
+ * returns the {@code String}
+ * {@code My decimal value is 3 and my String is Hello.} + * + *

The format token consists of a percent sign, optionally followed + * by flags and precision arguments, and then a single character that + * indicates the type of value + * being formatted. If the type is a time/date, then the type character + * {@code t} is followed by an additional character that indicates how the + * date is to be formatted. The two characters {@code <$} immediately + * following the % sign indicate that the previous value should be used again + * instead of moving on to the next value argument. A number {@code n} + * and a dollar sign immediately following the % sign make n the next argument + * to be used. + * + *

The available choices are the following: + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + *
+ * Text value types
{@code s}String{@code format("%s, %s", "hello", "Hello");}{@code hello, Hello}
{@code S}, {@code s}String to capitals{@code format("%S, %S", "hello", "Hello");}{@code HELLO, HELLO}
{@code c}Character{@code format("%c, %c", 'd', 0x65);}{@code d, e}
{@code C}Character to capitals{@code format("%C, %C", 'd', 0x65);}{@code D, E}
+ * Text option flags
The value between the + * option and the type character indicates the minimum width in + * characters of the formatted value
{@code -}Left justify (width value is required){@code format("%-3C, %3C", 'd', 0x65);}{@code D , E}
+ * Integer types
{@code d}int, formatted as decimal{@code format("%d, %d"1$, 35, 0x10);}{@code 35, 16}
{@code o}int, formatted as octal{@code format("%o, %o", 8, 010);}{@code 10, 10}
{@code X}, {@code x}int, formatted as hexidecimal{@code format("%x, %X", 10, 10);}{@code a, A}
+ * Integer option flags
The value between the + * option and the type character indicates the minimum width in + * characters of the formatted value
{@code +}lead with the number's sign{@code format("%+d, %+4d", 5, 5);}{@code +5, +5}
{@code -}Left justify (width value is required){@code format("%-6dx", 5);}{@code 5 x}
{@code #}Print the leading characters that indicate + * hexidecimal or octal (for use only with hex and octal types) {@code format("%#o", 010);}{@code 010}
{@code }A space indicates that non-negative numbers + * should have a leading space. {@code format("x% d% 5d", 4, 4);}{@code x 4 4}
{@code 0}Pad the number with leading zeros (width value is required){@code format("%07d, %03d", 4, 5555);}{@code 0000004, 5555}
{@code (}Put parentheses around negative numbers (decimal only){@code format("%(d, %(d, %(6d", 12, -12, -12);}{@code 12, (12), (12)}
+ * Float types
A value immediately following the % symbol + * gives the minimum width in characters of the formatted value; if it + * is followed by a period and another integer, then the second value + * gives the precision (6 by default).
{@code f}float (or double) formatted as a decimal, where + * the precision indicates the number of digits after the decimal.{@code format("%f %<.1f %<1.5f %<10f %<6.0f", 123.456f);}{@code 123.456001 123.5 123.45600 123.456001 123}
{@code E}, {@code e}float (or double) formatted in decimal exponential + * notation, where the precision indicates the number of significant digits.{@code format("%E %<.1e %<1.5E %<10E %<6.0E", 123.456f);}{@code 1.234560E+02 1.2e+02 1.23456E+02 1.234560E+02 1E+02}
{@code G}, {@code g}float (or double) formatted in decimal exponential + * notation , where the precision indicates the maximum number of significant digits.{@code format("%G %<.1g %<1.5G %<10G %<6.0G", 123.456f);}{@code 123.456 1e+02 123.46 123.456 1E+02}
{@code A}, {@code a}float (or double) formatted as a hexidecimal in exponential + * notation, where the precision indicates the number of significant digits.{@code format("%A %<.1a %<1.5A %<10A %<6.0A", 123.456f);}{@code 0X1.EDD2F2P6 0x1.fp6 0X1.EDD2FP6 0X1.EDD2F2P6 0X1.FP6}
+ * Float-type option flags
See the Integer-type options. + * The options for float-types are the + * same as for integer types with one addition:
{@code ,}Use a comma in place of a decimal if the locale + * requires it. {@code format(new Locale("fr"), "%,7.2f", 6.03f);}{@code 6,03}
+ * Date types
{@code t}, {@code T}Date{@code format(new Locale("fr"), "%tB %TB", Calendar.getInstance(), Calendar.getInstance());}{@code avril AVRIL}
+ * Date format precisions
The format precision character + * follows the {@code t}.
{@code A}, {@code a}The day of the week{@code format("%ta %tA", cal, cal);}{@code Tue Tuesday}
{@code b}, {@code B}, {@code h}The name of the month{@code format("%tb % + * {@code Apr April Apr}
{@code C}The century{@code format("%tC\n", cal);}{@code 20}
{@code d}, {@code e}The day of the month (with or without leading zeros){@code format("%td %te", cal, cal);}{@code 01 1}
{@code F}The complete date formatted as YYYY-MM-DD{@code format("%tF", cal);}{@code 2008-04-01}
{@code D}The complete date formatted as MM/DD/YY + * (not corrected for locale) {@code format(new Locale("en_US"), "%tD", cal);
format(new Locale("en_UK"), " %tD", cal);}		{@code 04/01/08 04/01/08}
{@code j}The number of the day (from the beginning of the year).{@code format("%tj\n", cal);}{@code 092}
{@code m}The number of the month{@code format("%tm\n", cal);}{@code 04}
{@code y}, {@code Y}The year{@code format("%ty %tY", cal, cal);}{@code 08 2008}
{@code H}, {@code I}, {@code k}, {@code l}The hour of the day, in 12 or 24 hour format, with or + * without a leading zero{@code format("%tH %tI %tk %tl", cal, cal, cal, cal);}{@code 16 04 16 4}
{@code p}a.m. or p.m.{@code format("%tp %Tp", cal, cal);}{@code pm PM}
{@code M}, {@code S}, {@code L}, {@code N}The minutes, seconds, milliseconds, and nanoseconds{@code format("%tM %tS %tL %tN", cal, cal, cal, cal);}{@code 08 17 359 359000000}
{@code Z}, {@code z}The time zone: its abbreviation or offset from GMT{@code format("%tZ %tz", cal, cal);}{@code CEST +0100}
{@code R}, {@code r}, {@code T}The complete time{@code format("%tR %tr %tT", cal, cal, cal);}{@code 16:15 04:15:32 PM 16:15:32}
{@code s}, {@code Q}The number of seconds or milliseconds from "the epoch" + * (1 January 1970 00:00:00 UTC) {@code format("%ts %tQ", cal, cal);}{@code 1207059412 1207059412656}
{@code c}The complete time and date{@code format("%tc", cal);}{@code Tue Apr 01 16:19:17 CEST 2008}
+ * Other data types
{@code B}, {@code b}Boolean{@code format("%b, %B", true, false);}{@code true, FALSE}
{@code H}, {@code h}Hashcode{@code format("%h, %H", obj, obj);}{@code 190d11, 190D11}
{@code n}line separator{@code format("first%nsecond", "???");}{@code first
second}
+ * Escape sequences
{@code %}Escape the % character{@code format("%d%%, %d", 50, 60);}{@code 50%, 60}
+ * + *

An instance of Formatter can be created to write the formatted + * output to standard types of output streams. Its functionality can + * also be accessed through the format methods of an output stream + * or of {@code String}:
+ * {@code System.out.println(String.format("%ty\n", cal));}
+ * {@code System.out.format("%ty\n", cal);} + * + *

The class is not multi-threaded safe. The user is responsible for + * maintaining a thread-safe design if a {@code Formatter} is + * accessed by multiple threads. + * + * @since 1.5 + */ +public final class LenientFormatter implements Closeable, Flushable { + + /** + * The enumeration giving the available styles for formatting very large + * decimal numbers. + */ + public enum BigDecimalLayoutForm { + /** + * Use scientific style for BigDecimals. + */ + SCIENTIFIC, + /** + * Use normal decimal/float style for BigDecimals. + */ + DECIMAL_FLOAT + } + + private Appendable out; + + private Locale locale; + + private boolean closed = false; + + private IOException lastIOException; + + /** + * Constructs a {@code Formatter}. + * + * The output is written to a {@code StringBuilder} which can be acquired by invoking + * {@link #out()} and whose content can be obtained by calling + * {@code toString()}. + * + * The {@code Locale} for the {@code LenientFormatter} is the default {@code Locale}. + */ + public LenientFormatter() { + this(new StringBuilder(), Locale.getDefault()); + } + + /** + * Constructs a {@code Formatter} whose output will be written to the + * specified {@code Appendable}. + * + * The locale for the {@code Formatter} is the default {@code Locale}. + * + * @param a + * the output destination of the {@code Formatter}. If {@code a} is {@code null}, + * then a {@code StringBuilder} will be used. + */ + public LenientFormatter(Appendable a) { + this(a, Locale.getDefault()); + } + + /** + * Constructs a {@code Formatter} with the specified {@code Locale}. + * + * The output is written to a {@code StringBuilder} which can be acquired by invoking + * {@link #out()} and whose content can be obtained by calling + * {@code toString()}. + * + * @param l + * the {@code Locale} of the {@code Formatter}. If {@code l} is {@code null}, + * then no localization will be used. + */ + public LenientFormatter(Locale l) { + this(new StringBuilder(), l); + } + + /** + * Constructs a {@code Formatter} with the specified {@code Locale} + * and whose output will be written to the + * specified {@code Appendable}. + * + * @param a + * the output destination of the {@code Formatter}. If {@code a} is {@code null}, + * then a {@code StringBuilder} will be used. + * @param l + * the {@code Locale} of the {@code Formatter}. If {@code l} is {@code null}, + * then no localization will be used. + */ + public LenientFormatter(Appendable a, Locale l) { + if (null == a) { + out = new StringBuilder(); + } else { + out = a; + } + locale = l; + } + + /** + * Constructs a {@code Formatter} whose output is written to the specified file. + * + * The charset of the {@code Formatter} is the default charset. + * + * The {@code Locale} for the {@code Formatter} is the default {@code Locale}. + * + * @param fileName + * the filename of the file that is used as the output + * destination for the {@code Formatter}. The file will be truncated to + * zero size if the file exists, or else a new file will be + * created. The output of the {@code Formatter} is buffered. + * @throws FileNotFoundException + * if the filename does not denote a normal and writable file, + * or if a new file cannot be created, or if any error arises when + * opening or creating the file. + * @throws SecurityException + * if there is a {@code SecurityManager} in place which denies permission + * to write to the file in {@code checkWrite(file.getPath())}. + */ + public LenientFormatter(String fileName) throws FileNotFoundException { + this(new File(fileName)); + + } + + /** + * Constructs a {@code Formatter} whose output is written to the specified file. + * + * The {@code Locale} for the {@code Formatter} is the default {@code Locale}. + * + * @param fileName + * the filename of the file that is used as the output + * destination for the {@code Formatter}. The file will be truncated to + * zero size if the file exists, or else a new file will be + * created. The output of the {@code Formatter} is buffered. + * @param csn + * the name of the charset for the {@code Formatter}. + * @throws FileNotFoundException + * if the filename does not denote a normal and writable file, + * or if a new file cannot be created, or if any error arises when + * opening or creating the file. + * @throws SecurityException + * if there is a {@code SecurityManager} in place which denies permission + * to write to the file in {@code checkWrite(file.getPath())}. + * @throws UnsupportedEncodingException + * if the charset with the specified name is not supported. + */ + public LenientFormatter(String fileName, String csn) throws FileNotFoundException, + UnsupportedEncodingException { + this(new File(fileName), csn); + } + + /** + * Constructs a {@code Formatter} with the given {@code Locale} and charset, + * and whose output is written to the specified file. + * + * @param fileName + * the filename of the file that is used as the output + * destination for the {@code Formatter}. The file will be truncated to + * zero size if the file exists, or else a new file will be + * created. The output of the {@code Formatter} is buffered. + * @param csn + * the name of the charset for the {@code Formatter}. + * @param l + * the {@code Locale} of the {@code Formatter}. If {@code l} is {@code null}, + * then no localization will be used. + * @throws FileNotFoundException + * if the filename does not denote a normal and writable file, + * or if a new file cannot be created, or if any error arises when + * opening or creating the file. + * @throws SecurityException + * if there is a {@code SecurityManager} in place which denies permission + * to write to the file in {@code checkWrite(file.getPath())}. + * @throws UnsupportedEncodingException + * if the charset with the specified name is not supported. + */ + public LenientFormatter(String fileName, String csn, Locale l) + throws FileNotFoundException, UnsupportedEncodingException { + + this(new File(fileName), csn, l); + } + + /** + * Constructs a {@code Formatter} whose output is written to the specified {@code File}. + * + * The charset of the {@code Formatter} is the default charset. + * + * The {@code Locale} for the {@code Formatter} is the default {@code Locale}. + * + * @param file + * the {@code File} that is used as the output destination for the + * {@code Formatter}. The {@code File} will be truncated to zero size if the {@code File} + * exists, or else a new {@code File} will be created. The output of the + * {@code Formatter} is buffered. + * @throws FileNotFoundException + * if the {@code File} is not a normal and writable {@code File}, or if a + * new {@code File} cannot be created, or if any error rises when opening or + * creating the {@code File}. + * @throws SecurityException + * if there is a {@code SecurityManager} in place which denies permission + * to write to the {@code File} in {@code checkWrite(file.getPath())}. + */ + public LenientFormatter(File file) throws FileNotFoundException { + this(new FileOutputStream(file)); + } + + /** + * Constructs a {@code Formatter} with the given charset, + * and whose output is written to the specified {@code File}. + * + * The {@code Locale} for the {@code Formatter} is the default {@code Locale}. + * + * @param file + * the {@code File} that is used as the output destination for the + * {@code Formatter}. The {@code File} will be truncated to zero size if the {@code File} + * exists, or else a new {@code File} will be created. The output of the + * {@code Formatter} is buffered. + * @param csn + * the name of the charset for the {@code Formatter}. + * @throws FileNotFoundException + * if the {@code File} is not a normal and writable {@code File}, or if a + * new {@code File} cannot be created, or if any error rises when opening or + * creating the {@code File}. + * @throws SecurityException + * if there is a {@code SecurityManager} in place which denies permission + * to write to the {@code File} in {@code checkWrite(file.getPath())}. + * @throws UnsupportedEncodingException + * if the charset with the specified name is not supported. + */ + public LenientFormatter(File file, String csn) throws FileNotFoundException, + UnsupportedEncodingException { + this(file, csn, Locale.getDefault()); + } + + /** + * Constructs a {@code Formatter} with the given {@code Locale} and charset, + * and whose output is written to the specified {@code File}. + * + * @param file + * the {@code File} that is used as the output destination for the + * {@code Formatter}. The {@code File} will be truncated to zero size if the {@code File} + * exists, or else a new {@code File} will be created. The output of the + * {@code Formatter} is buffered. + * @param csn + * the name of the charset for the {@code Formatter}. + * @param l + * the {@code Locale} of the {@code Formatter}. If {@code l} is {@code null}, + * then no localization will be used. + * @throws FileNotFoundException + * if the {@code File} is not a normal and writable {@code File}, or if a + * new {@code File} cannot be created, or if any error rises when opening or + * creating the {@code File}. + * @throws SecurityException + * if there is a {@code SecurityManager} in place which denies permission + * to write to the {@code File} in {@code checkWrite(file.getPath())}. + * @throws UnsupportedEncodingException + * if the charset with the specified name is not supported. + */ + public LenientFormatter(File file, String csn, Locale l) + throws FileNotFoundException, UnsupportedEncodingException { + FileOutputStream fout = null; + try { + fout = new FileOutputStream(file); + OutputStreamWriter writer = new OutputStreamWriter(fout, csn); + out = new BufferedWriter(writer); + } catch (RuntimeException e) { + closeOutputStream(fout); + throw e; + } catch (UnsupportedEncodingException e) { + closeOutputStream(fout); + throw e; + } + + locale = l; + } + + /** + * Constructs a {@code Formatter} whose output is written to the specified {@code OutputStream}. + * + * The charset of the {@code Formatter} is the default charset. + * + * The {@code Locale} for the {@code Formatter} is the default {@code Locale}. + * + * @param os + * the stream to be used as the destination of the {@code Formatter}. + */ + public LenientFormatter(OutputStream os) { + OutputStreamWriter writer = new OutputStreamWriter(os, Charset + .defaultCharset()); + out = new BufferedWriter(writer); + locale = Locale.getDefault(); + } + + /** + * Constructs a {@code Formatter} with the given charset, + * and whose output is written to the specified {@code OutputStream}. + * + * The {@code Locale} for the {@code Formatter} is the default {@code Locale}. + * + * @param os + * the stream to be used as the destination of the {@code Formatter}. + * @param csn + * the name of the charset for the {@code Formatter}. + * @throws UnsupportedEncodingException + * if the charset with the specified name is not supported. + */ + public LenientFormatter(OutputStream os, String csn) + throws UnsupportedEncodingException { + + this(os, csn, Locale.getDefault()); + } + + /** + * Constructs a {@code Formatter} with the given {@code Locale} and charset, + * and whose output is written to the specified {@code OutputStream}. + * + * @param os + * the stream to be used as the destination of the {@code Formatter}. + * @param csn + * the name of the charset for the {@code Formatter}. + * @param l + * the {@code Locale} of the {@code Formatter}. If {@code l} is {@code null}, + * then no localization will be used. + * @throws UnsupportedEncodingException + * if the charset with the specified name is not supported. + */ + public LenientFormatter(OutputStream os, String csn, Locale l) + throws UnsupportedEncodingException { + + OutputStreamWriter writer = new OutputStreamWriter(os, csn); + out = new BufferedWriter(writer); + + locale = l; + } + + /** + * Constructs a {@code Formatter} whose output is written to the specified {@code PrintStream}. + * + * The charset of the {@code Formatter} is the default charset. + * + * The {@code Locale} for the {@code Formatter} is the default {@code Locale}. + * + * @param ps + * the {@code PrintStream} used as destination of the {@code Formatter}. If + * {@code ps} is {@code null}, then a {@code NullPointerException} will + * be raised. + */ + public LenientFormatter(PrintStream ps) { + if (null == ps) { + throw new NullPointerException(); + } + out = ps; + locale = Locale.getDefault(); + } + + private void checkClosed() { + if (closed) { + throw new FormatterClosedException(); + } + } + + /** + * Returns the {@code Locale} of the {@code Formatter}. + * + * @return the {@code Locale} for the {@code Formatter} or {@code null} for no {@code Locale}. + * @throws FormatterClosedException + * if the {@code Formatter} has been closed. + */ + public Locale locale() { + checkClosed(); + return locale; + } + + /** + * Returns the output destination of the {@code Formatter}. + * + * @return the output destination of the {@code Formatter}. + * @throws FormatterClosedException + * if the {@code Formatter} has been closed. + */ + public Appendable out() { + checkClosed(); + return out; + } + + /** + * Returns the content by calling the {@code toString()} method of the output + * destination. + * + * @return the content by calling the {@code toString()} method of the output + * destination. + * @throws FormatterClosedException + * if the {@code Formatter} has been closed. + */ + @Override + public String toString() { + checkClosed(); + return out.toString(); + } + + /** + * Flushes the {@code Formatter}. If the output destination is {@link Flushable}, + * then the method {@code flush()} will be called on that destination. + * + * @throws FormatterClosedException + * if the {@code Formatter} has been closed. + */ + public void flush() { + checkClosed(); + if (out instanceof Flushable) { + try { + ((Flushable) out).flush(); + } catch (IOException e) { + lastIOException = e; + } + } + } + + /** + * Closes the {@code Formatter}. If the output destination is {@link Closeable}, + * then the method {@code close()} will be called on that destination. + * + * If the {@code Formatter} has been closed, then calling the this method will have no + * effect. + * + * Any method but the {@link #ioException()} that is called after the + * {@code Formatter} has been closed will raise a {@code FormatterClosedException}. + */ + public void close() { + closed = true; + try { + if (out instanceof Closeable) { + ((Closeable) out).close(); + } + } catch (IOException e) { + + lastIOException = e; + } + } + + /** + * Returns the last {@code IOException} thrown by the {@code Formatter}'s output + * destination. If the {@code append()} method of the destination does not throw + * {@code IOException}s, the {@code ioException()} method will always return {@code null}. + * + * @return the last {@code IOException} thrown by the {@code Formatter}'s output + * destination. + */ + public IOException ioException() { + return lastIOException; + } + + /** + * Writes a formatted string to the output destination of the {@code Formatter}. + * + * @param format + * a format string. + * @param args + * the arguments list used in the {@code format()} method. If there are + * more arguments than those specified by the format string, then + * the additional arguments are ignored. + * @return this {@code Formatter}. + * @throws IllegalFormatException + * if the format string is illegal or incompatible with the + * arguments, or if fewer arguments are sent than those required by + * the format string, or any other illegal situation. + * @throws FormatterClosedException + * if the {@code Formatter} has been closed. + */ + public LenientFormatter format(String format, Object... args) { + return format(locale, format, args); + } + + /** + * Writes a formatted string to the output destination of the {@code Formatter}. + * + * @param l + * the {@code Locale} used in the method. If {@code locale} is + * {@code null}, then no localization will be applied. This + * parameter does not influence the {@code Locale} specified during + * construction. + * @param format + * a format string. + * @param args + * the arguments list used in the {@code format()} method. If there are + * more arguments than those specified by the format string, then + * the additional arguments are ignored. + * @return this {@code Formatter}. + * @throws IllegalFormatException + * if the format string is illegal or incompatible with the + * arguments, or if fewer arguments are sent than those required by + * the format string, or any other illegal situation. + * @throws FormatterClosedException + * if the {@code Formatter} has been closed. + */ + public LenientFormatter format(Locale l, String format, Object... args) { + checkClosed(); + CharBuffer formatBuffer = CharBuffer.wrap(format); + ParserStateMachine parser = new ParserStateMachine(formatBuffer); + Transformer transformer = new Transformer(this, l); + + int currentObjectIndex = 0; + Object lastArgument = null; + boolean hasLastArgumentSet = false; + while (formatBuffer.hasRemaining()) { + parser.reset(); + FormatToken token = parser.getNextFormatToken(); + String result; + String plainText = token.getPlainText(); + if (token.getConversionType() == (char) FormatToken.UNSET) { + result = plainText; + } else { + plainText = plainText.substring(0, plainText.indexOf('%')); + Object argument = null; + if (token.requireArgument()) { + int index = token.getArgIndex() == FormatToken.UNSET ? currentObjectIndex++ + : token.getArgIndex(); + argument = getArgument(args, index, token, lastArgument, + hasLastArgumentSet); + lastArgument = argument; + hasLastArgumentSet = true; + } + result = transformer.transform(token, argument); + result = (null == result ? plainText : plainText + result); + } + // if output is made by formattable callback + if (null != result) { + try { + out.append(result); + } catch (IOException e) { + lastIOException = e; + } + } + } + return this; + } + + private Object getArgument(Object[] args, int index, FormatToken token, + Object lastArgument, boolean hasLastArgumentSet) { + if (index == FormatToken.LAST_ARGUMENT_INDEX && !hasLastArgumentSet) { + throw new MissingFormatArgumentException("<"); //$NON-NLS-1$ + } + + if (null == args) { + return null; + } + + if (index >= args.length) { + throw new MissingFormatArgumentException(token.getPlainText()); + } + + if (index == FormatToken.LAST_ARGUMENT_INDEX) { + return lastArgument; + } + + return args[index]; + } + + private static void closeOutputStream(OutputStream os) { + if (null == os) { + return; + } + try { + os.close(); + + } catch (IOException e) { + // silently + } + } + + /* + * Information about the format string of a specified argument, which + * includes the conversion type, flags, width, precision and the argument + * index as well as the plainText that contains the whole format string used + * as the result for output if necessary. Besides, the string for flags is + * recorded to construct corresponding FormatExceptions if necessary. + */ + private static class FormatToken { + + static final int LAST_ARGUMENT_INDEX = -2; + + static final int UNSET = -1; + + static final int FLAGS_UNSET = 0; + + static final int DEFAULT_PRECISION = 6; + + static final int FLAG_MINUS = 1; + + static final int FLAG_SHARP = 1 << 1; + + static final int FLAG_ADD = 1 << 2; + + static final int FLAG_SPACE = 1 << 3; + + static final int FLAG_ZERO = 1 << 4; + + static final int FLAG_COMMA = 1 << 5; + + static final int FLAG_PARENTHESIS = 1 << 6; + + private static final int FLAGT_TYPE_COUNT = 6; + + private int formatStringStartIndex; + + private String plainText; + + private int argIndex = UNSET; + + private int flags = 0; + + private int width = UNSET; + + private int precision = UNSET; + + private StringBuilder strFlags = new StringBuilder(FLAGT_TYPE_COUNT); + + private char dateSuffix;// will be used in new feature. + + private char conversionType = (char) UNSET; + + boolean isPrecisionSet() { + return precision != UNSET; + } + + boolean isWidthSet() { + return width != UNSET; + } + + boolean isFlagSet(int flag) { + return 0 != (flags & flag); + } + + int getArgIndex() { + return argIndex; + } + + void setArgIndex(int index) { + argIndex = index; + } + + String getPlainText() { + return plainText; + } + + void setPlainText(String plainText) { + this.plainText = plainText; + } + + int getWidth() { + return width; + } + + void setWidth(int width) { + this.width = width; + } + + int getPrecision() { + return precision; + } + + void setPrecision(int precise) { + this.precision = precise; + } + + String getStrFlags() { + return strFlags.toString(); + } + + int getFlags() { + return flags; + } + + void setFlags(int flags) { + this.flags = flags; + } + + /* + * Sets qualified char as one of the flags. If the char is qualified, + * sets it as a flag and returns true. Or else returns false. + */ + boolean setFlag(char c) { + int newFlag; + switch (c) { + case '-': { + newFlag = FLAG_MINUS; + break; + } + case '#': { + newFlag = FLAG_SHARP; + break; + } + case '+': { + newFlag = FLAG_ADD; + break; + } + case ' ': { + newFlag = FLAG_SPACE; + break; + } + case '0': { + newFlag = FLAG_ZERO; + break; + } + case ',': { + newFlag = FLAG_COMMA; + break; + } + case '(': { + newFlag = FLAG_PARENTHESIS; + break; + } + default: + return false; + } + if (0 != (flags & newFlag)) { + throw new DuplicateFormatFlagsException(String.valueOf(c)); + } + flags = (flags | newFlag); + strFlags.append(c); + return true; + + } + + int getFormatStringStartIndex() { + return formatStringStartIndex; + } + + void setFormatStringStartIndex(int index) { + formatStringStartIndex = index; + } + + char getConversionType() { + return conversionType; + } + + void setConversionType(char c) { + conversionType = c; + } + + char getDateSuffix() { + return dateSuffix; + } + + void setDateSuffix(char c) { + dateSuffix = c; + } + + boolean requireArgument() { + return conversionType != '%' && conversionType != 'n'; + } + } + + /* + * Transforms the argument to the formatted string according to the format + * information contained in the format token. + */ + private static class Transformer { + + private LenientFormatter formatter; + + private FormatToken formatToken; + + private Object arg; + + private Locale locale; + + private static String lineSeparator; + + private NumberFormat numberFormat; + + private DecimalFormatSymbols decimalFormatSymbols; + + private DateTimeUtil dateTimeUtil; + + Transformer(LenientFormatter formatter, Locale locale) { + this.formatter = formatter; + this.locale = (null == locale ? Locale.US : locale); + } + + private NumberFormat getNumberFormat() { + if (null == numberFormat) { + numberFormat = NumberFormat.getInstance(locale); + } + return numberFormat; + } + + private DecimalFormatSymbols getDecimalFormatSymbols() { + if (null == decimalFormatSymbols) { + decimalFormatSymbols = new DecimalFormatSymbols(locale); + } + return decimalFormatSymbols; + } + + /* + * Gets the formatted string according to the format token and the + * argument. + */ + String transform(FormatToken token, Object argument) { + + /* init data member to print */ + this.formatToken = token; + this.arg = argument; + + String result; + switch (token.getConversionType()) { + case 'B': + case 'b': { + result = transformFromBoolean(); + break; + } + case 'H': + case 'h': { + result = transformFromHashCode(); + break; + } + case 'S': + case 's': { + result = transformFromString(); + break; + } + case 'C': + case 'c': { + result = transformFromCharacter(); + break; + } + case 'd': + case 'o': + case 'x': + case 'X': { + if (null == arg || arg instanceof BigInteger) { + result = transformFromBigInteger(); + } else { + result = transformFromInteger(); + } + break; + } + case 'e': + case 'E': + case 'g': + case 'G': + case 'f': + case 'a': + case 'A': { + result = transformFromFloat(); + break; + } + case '%': { + result = transformFromPercent(); + break; + } + case 'n': { + result = transformFromLineSeparator(); + break; + } + case 't': + case 'T': { + result = transformFromDateTime(); + break; + } + default: { + throw new UnknownFormatConversionException(String + .valueOf(token.getConversionType())); + } + } + + if (Character.isUpperCase(token.getConversionType())) { + if (null != result) { + result = result.toUpperCase(Locale.US); + } + } + return result; + } + + /* + * Transforms the Boolean argument to a formatted string. + */ + private String transformFromBoolean() { + StringBuilder result = new StringBuilder(); + int startIndex = 0; + int flags = formatToken.getFlags(); + + if (formatToken.isFlagSet(FormatToken.FLAG_MINUS) + && !formatToken.isWidthSet()) { + throw new MissingFormatWidthException("-" //$NON-NLS-1$ + + formatToken.getConversionType()); + } + + // only '-' is valid for flags + if (FormatToken.FLAGS_UNSET != flags + && FormatToken.FLAG_MINUS != flags) { + throw new FormatFlagsConversionMismatchException(formatToken + .getStrFlags(), formatToken.getConversionType()); + } + + if (null == arg) { + result.append("false"); //$NON-NLS-1$ + } else if (arg instanceof Boolean) { + result.append(arg); + } else { + result.append("true"); //$NON-NLS-1$ + } + return padding(result, startIndex); + } + + /* + * Transforms the hashcode of the argument to a formatted string. + */ + private String transformFromHashCode() { + StringBuilder result = new StringBuilder(); + + int startIndex = 0; + int flags = formatToken.getFlags(); + + if (formatToken.isFlagSet(FormatToken.FLAG_MINUS) + && !formatToken.isWidthSet()) { + throw new MissingFormatWidthException("-" //$NON-NLS-1$ + + formatToken.getConversionType()); + } + + // only '-' is valid for flags + if (FormatToken.FLAGS_UNSET != flags + && FormatToken.FLAG_MINUS != flags) { + throw new FormatFlagsConversionMismatchException(formatToken + .getStrFlags(), formatToken.getConversionType()); + } + + if (null == arg) { + result.append("null"); //$NON-NLS-1$ + } else { + result.append(Integer.toHexString(arg.hashCode())); + } + return padding(result, startIndex); + } + + /* + * Transforms the String to a formatted string. + */ + private String transformFromString() { + StringBuilder result = new StringBuilder(); + int startIndex = 0; + int flags = formatToken.getFlags(); + + if (formatToken.isFlagSet(FormatToken.FLAG_MINUS) + && !formatToken.isWidthSet()) { + throw new MissingFormatWidthException("-" //$NON-NLS-1$ + + formatToken.getConversionType()); + } + + // only '-' is valid for flags if the argument is not an + // instance of Formattable + if (FormatToken.FLAGS_UNSET != flags + && FormatToken.FLAG_MINUS != flags) { + throw new FormatFlagsConversionMismatchException(formatToken + .getStrFlags(), formatToken.getConversionType()); + } + + result.append(arg); + return padding(result, startIndex); + } + + /* + * Transforms the Character to a formatted string. + */ + private String transformFromCharacter() { + StringBuilder result = new StringBuilder(); + + int startIndex = 0; + int flags = formatToken.getFlags(); + + if (formatToken.isFlagSet(FormatToken.FLAG_MINUS) + && !formatToken.isWidthSet()) { + throw new MissingFormatWidthException("-" //$NON-NLS-1$ + + formatToken.getConversionType()); + } + + // only '-' is valid for flags + if (FormatToken.FLAGS_UNSET != flags + && FormatToken.FLAG_MINUS != flags) { + throw new FormatFlagsConversionMismatchException(formatToken + .getStrFlags(), formatToken.getConversionType()); + } + + if (formatToken.isPrecisionSet()) { + throw new IllegalFormatPrecisionException(formatToken + .getPrecision()); + } + + if (null == arg) { + result.append("null"); //$NON-NLS-1$ + } else { + if (arg instanceof Character) { + result.append(arg); + } else if (arg instanceof Byte) { + byte b = ((Byte) arg).byteValue(); + if (!Character.isValidCodePoint(b)) { + throw new IllegalFormatCodePointException(b); + } + result.append((char) b); + } else if (arg instanceof Short) { + short s = ((Short) arg).shortValue(); + if (!Character.isValidCodePoint(s)) { + throw new IllegalFormatCodePointException(s); + } + result.append((char) s); + } else if (arg instanceof Number) { + int codePoint = ((Number) arg).intValue(); + if (!Character.isValidCodePoint(codePoint)) { + throw new IllegalFormatCodePointException(codePoint); + } + result.append(String.valueOf(Character.toChars(codePoint))); + } else { + // argument of other class is not acceptable. + throw new IllegalFormatConversionException(formatToken + .getConversionType(), arg.getClass()); + } + } + return padding(result, startIndex); + } + + /* + * Transforms percent to a formatted string. Only '-' is legal flag. + * Precision is illegal. + */ + private String transformFromPercent() { + StringBuilder result = new StringBuilder("%"); //$NON-NLS-1$ + + int startIndex = 0; + int flags = formatToken.getFlags(); + + if (formatToken.isFlagSet(FormatToken.FLAG_MINUS) + && !formatToken.isWidthSet()) { + throw new MissingFormatWidthException("-" //$NON-NLS-1$ + + formatToken.getConversionType()); + } + + if (FormatToken.FLAGS_UNSET != flags + && FormatToken.FLAG_MINUS != flags) { + throw new FormatFlagsConversionMismatchException(formatToken + .getStrFlags(), formatToken.getConversionType()); + } + if (formatToken.isPrecisionSet()) { + throw new IllegalFormatPrecisionException(formatToken + .getPrecision()); + } + return padding(result, startIndex); + } + + /* + * Transforms line separator to a formatted string. Any flag, the width + * or the precision is illegal. + */ + private String transformFromLineSeparator() { + if (formatToken.isPrecisionSet()) { + throw new IllegalFormatPrecisionException(formatToken + .getPrecision()); + } + + if (formatToken.isWidthSet()) { + throw new IllegalFormatWidthException(formatToken.getWidth()); + } + + int flags = formatToken.getFlags(); + if (FormatToken.FLAGS_UNSET != flags) { + throw new IllegalFormatFlagsException(formatToken.getStrFlags()); + } + + if (null == lineSeparator) { + lineSeparator = AccessController + .doPrivileged(new PrivilegedAction() { + + public String run() { + return System.getProperty("line.separator"); //$NON-NLS-1$ + } + }); + } + return lineSeparator; + } + + /* + * Pads characters to the formatted string. + */ + private String padding(StringBuilder source, int startIndex) { + int start = startIndex; + boolean paddingRight = formatToken + .isFlagSet(FormatToken.FLAG_MINUS); + char paddingChar = '\u0020';// space as padding char. + if (formatToken.isFlagSet(FormatToken.FLAG_ZERO)) { + if ('d' == formatToken.getConversionType()) { + paddingChar = getDecimalFormatSymbols().getZeroDigit(); + } else { + paddingChar = '0'; + } + } else { + // if padding char is space, always padding from the head + // location. + start = 0; + } + int width = formatToken.getWidth(); + int precision = formatToken.getPrecision(); + + int length = source.length(); + if (precision >= 0) { + length = Math.min(length, precision); + source.delete(length, source.length()); + } + if (width > 0) { + width = Math.max(source.length(), width); + } + if (length >= width) { + return source.toString(); + } + + char[] paddings = new char[width - length]; + Arrays.fill(paddings, paddingChar); + String insertString = new String(paddings); + + if (paddingRight) { + source.append(insertString); + } else { + source.insert(start, insertString); + } + return source.toString(); + } + + /* + * Transforms the Integer to a formatted string. + */ + private String transformFromInteger() { + int startIndex = 0; + boolean isNegative = false; + StringBuilder result = new StringBuilder(); + char currentConversionType = formatToken.getConversionType(); + long value; + + if (formatToken.isFlagSet(FormatToken.FLAG_MINUS) + || formatToken.isFlagSet(FormatToken.FLAG_ZERO)) { + if (!formatToken.isWidthSet()) { + throw new MissingFormatWidthException(formatToken + .getStrFlags()); + } + } + // Combination of '+' & ' ' is illegal. + if (formatToken.isFlagSet(FormatToken.FLAG_ADD) + && formatToken.isFlagSet(FormatToken.FLAG_SPACE)) { + throw new IllegalFormatFlagsException(formatToken.getStrFlags()); + } + if (formatToken.isPrecisionSet()) { + throw new IllegalFormatPrecisionException(formatToken + .getPrecision()); + } + if (arg instanceof Long) { + value = ((Long) arg).longValue(); + } else if (arg instanceof Integer) { + value = ((Integer) arg).longValue(); + } else if (arg instanceof Short) { + value = ((Short) arg).longValue(); + } else if (arg instanceof Byte) { + value = ((Byte) arg).longValue(); + } + else if (arg instanceof Number) { + value = ((Number) arg).longValue(); + } else { + throw new IllegalFormatConversionException(formatToken + .getConversionType(), arg.getClass()); + } + if ('d' != currentConversionType) { + if (formatToken.isFlagSet(FormatToken.FLAG_ADD) + || formatToken.isFlagSet(FormatToken.FLAG_SPACE) + || formatToken.isFlagSet(FormatToken.FLAG_COMMA) + || formatToken.isFlagSet(FormatToken.FLAG_PARENTHESIS)) { + throw new FormatFlagsConversionMismatchException( + formatToken.getStrFlags(), formatToken + .getConversionType()); + } + } + + if (formatToken.isFlagSet(FormatToken.FLAG_SHARP)) { + if ('d' == currentConversionType) { + throw new FormatFlagsConversionMismatchException( + formatToken.getStrFlags(), formatToken + .getConversionType()); + } else if ('o' == currentConversionType) { + result.append("0"); //$NON-NLS-1$ + startIndex += 1; + } else { + result.append("0x"); //$NON-NLS-1$ + startIndex += 2; + } + } + + if (formatToken.isFlagSet(FormatToken.FLAG_MINUS) + && formatToken.isFlagSet(FormatToken.FLAG_ZERO)) { + throw new IllegalFormatFlagsException(formatToken.getStrFlags()); + } + + if (value < 0) { + isNegative = true; + } + + if ('d' == currentConversionType) { + NumberFormat numberFormat = getNumberFormat(); + if (formatToken.isFlagSet(FormatToken.FLAG_COMMA)) { + numberFormat.setGroupingUsed(true); + } else { + numberFormat.setGroupingUsed(false); + } + result.append(numberFormat.format(arg)); + } else { + long BYTE_MASK = 0x00000000000000FFL; + long SHORT_MASK = 0x000000000000FFFFL; + long INT_MASK = 0x00000000FFFFFFFFL; + if (isNegative) { + if (arg instanceof Byte) { + value &= BYTE_MASK; + } else if (arg instanceof Short) { + value &= SHORT_MASK; + } else if (arg instanceof Integer) { + value &= INT_MASK; + } + } + if ('o' == currentConversionType) { + result.append(Long.toOctalString(value)); + } else { + result.append(Long.toHexString(value)); + } + isNegative = false; + } + + if (!isNegative) { + if (formatToken.isFlagSet(FormatToken.FLAG_ADD)) { + result.insert(0, '+'); + startIndex += 1; + } + if (formatToken.isFlagSet(FormatToken.FLAG_SPACE)) { + result.insert(0, ' '); + startIndex += 1; + } + } + + /* pad paddingChar to the output */ + if (isNegative + && formatToken.isFlagSet(FormatToken.FLAG_PARENTHESIS)) { + result = wrapParentheses(result); + return result.toString(); + + } + if (isNegative && formatToken.isFlagSet(FormatToken.FLAG_ZERO)) { + startIndex++; + } + return padding(result, startIndex); + } + + /* + * add () to the output,if the value is negative and + * formatToken.FLAG_PARENTHESIS is set. 'result' is used as an in-out + * parameter. + */ + private StringBuilder wrapParentheses(StringBuilder result) { + // delete the '-' + result.deleteCharAt(0); + result.insert(0, '('); + if (formatToken.isFlagSet(FormatToken.FLAG_ZERO)) { + formatToken.setWidth(formatToken.getWidth() - 1); + padding(result, 1); + result.append(')'); + } else { + result.append(')'); + padding(result, 0); + } + return result; + } + + private String transformFromSpecialNumber() { + String source = null; + + if (!(arg instanceof Number) || arg instanceof BigDecimal) { + return null; + } + + Number number = (Number) arg; + double d = number.doubleValue(); + if (Double.isNaN(d)) { + source = "NaN"; //$NON-NLS-1$ + } else if (Double.isInfinite(d)) { + if (d >= 0) { + if (formatToken.isFlagSet(FormatToken.FLAG_ADD)) { + source = "+Infinity"; //$NON-NLS-1$ + } else if (formatToken.isFlagSet(FormatToken.FLAG_SPACE)) { + source = " Infinity"; //$NON-NLS-1$ + } else { + source = "Infinity"; //$NON-NLS-1$ + } + } else { + if (formatToken.isFlagSet(FormatToken.FLAG_PARENTHESIS)) { + source = "(Infinity)"; //$NON-NLS-1$ + } else { + source = "-Infinity"; //$NON-NLS-1$ + } + } + } + + if (null != source) { + formatToken.setPrecision(FormatToken.UNSET); + formatToken.setFlags(formatToken.getFlags() + & (~FormatToken.FLAG_ZERO)); + source = padding(new StringBuilder(source), 0); + } + return source; + } + + private String transformFromNull() { + formatToken.setFlags(formatToken.getFlags() + & (~FormatToken.FLAG_ZERO)); + return padding(new StringBuilder("null"), 0); //$NON-NLS-1$ + } + + /* + * Transforms a BigInteger to a formatted string. + */ + private String transformFromBigInteger() { + int startIndex = 0; + boolean isNegative = false; + StringBuilder result = new StringBuilder(); + BigInteger bigInt = (BigInteger) arg; + char currentConversionType = formatToken.getConversionType(); + + if (formatToken.isFlagSet(FormatToken.FLAG_MINUS) + || formatToken.isFlagSet(FormatToken.FLAG_ZERO)) { + if (!formatToken.isWidthSet()) { + throw new MissingFormatWidthException(formatToken + .getStrFlags()); + } + } + + // Combination of '+' & ' ' is illegal. + if (formatToken.isFlagSet(FormatToken.FLAG_ADD) + && formatToken.isFlagSet(FormatToken.FLAG_SPACE)) { + throw new IllegalFormatFlagsException(formatToken.getStrFlags()); + } + + // Combination of '-' & '0' is illegal. + if (formatToken.isFlagSet(FormatToken.FLAG_ZERO) + && formatToken.isFlagSet(FormatToken.FLAG_MINUS)) { + throw new IllegalFormatFlagsException(formatToken.getStrFlags()); + } + + if (formatToken.isPrecisionSet()) { + throw new IllegalFormatPrecisionException(formatToken + .getPrecision()); + } + + if ('d' != currentConversionType + && formatToken.isFlagSet(FormatToken.FLAG_COMMA)) { + throw new FormatFlagsConversionMismatchException(formatToken + .getStrFlags(), currentConversionType); + } + + if (formatToken.isFlagSet(FormatToken.FLAG_SHARP) + && 'd' == currentConversionType) { + throw new FormatFlagsConversionMismatchException(formatToken + .getStrFlags(), currentConversionType); + } + + if (null == bigInt) { + return transformFromNull(); + } + + isNegative = (bigInt.compareTo(BigInteger.ZERO) < 0); + + if ('d' == currentConversionType) { + NumberFormat numberFormat = getNumberFormat(); + boolean readableName = formatToken + .isFlagSet(FormatToken.FLAG_COMMA); + numberFormat.setGroupingUsed(readableName); + result.append(numberFormat.format(bigInt)); + } else if ('o' == currentConversionType) { + // convert BigInteger to a string presentation using radix 8 + result.append(bigInt.toString(8)); + } else { + // convert BigInteger to a string presentation using radix 16 + result.append(bigInt.toString(16)); + } + if (formatToken.isFlagSet(FormatToken.FLAG_SHARP)) { + startIndex = isNegative ? 1 : 0; + if ('o' == currentConversionType) { + result.insert(startIndex, "0"); //$NON-NLS-1$ + startIndex += 1; + } else if ('x' == currentConversionType + || 'X' == currentConversionType) { + result.insert(startIndex, "0x"); //$NON-NLS-1$ + startIndex += 2; + } + } + + if (!isNegative) { + if (formatToken.isFlagSet(FormatToken.FLAG_ADD)) { + result.insert(0, '+'); + startIndex += 1; + } + if (formatToken.isFlagSet(FormatToken.FLAG_SPACE)) { + result.insert(0, ' '); + startIndex += 1; + } + } + + /* pad paddingChar to the output */ + if (isNegative + && formatToken.isFlagSet(FormatToken.FLAG_PARENTHESIS)) { + result = wrapParentheses(result); + return result.toString(); + + } + if (isNegative && formatToken.isFlagSet(FormatToken.FLAG_ZERO)) { + startIndex++; + } + return padding(result, startIndex); + } + + /* + * Transforms a Float,Double or BigDecimal to a formatted string. + */ + private String transformFromFloat() { + StringBuilder result = new StringBuilder(); + int startIndex = 0; + char currentConversionType = formatToken.getConversionType(); + + if (formatToken.isFlagSet(FormatToken.FLAG_MINUS + | FormatToken.FLAG_ZERO)) { + if (!formatToken.isWidthSet()) { + throw new MissingFormatWidthException(formatToken + .getStrFlags()); + } + } + + if (formatToken.isFlagSet(FormatToken.FLAG_ADD) + && formatToken.isFlagSet(FormatToken.FLAG_SPACE)) { + throw new IllegalFormatFlagsException(formatToken.getStrFlags()); + } + + if (formatToken.isFlagSet(FormatToken.FLAG_MINUS) + && formatToken.isFlagSet(FormatToken.FLAG_ZERO)) { + throw new IllegalFormatFlagsException(formatToken.getStrFlags()); + } + + if ('e' == Character.toLowerCase(currentConversionType)) { + if (formatToken.isFlagSet(FormatToken.FLAG_COMMA)) { + throw new FormatFlagsConversionMismatchException( + formatToken.getStrFlags(), currentConversionType); + } + } + + if ('g' == Character.toLowerCase(currentConversionType)) { + if (formatToken.isFlagSet(FormatToken.FLAG_SHARP)) { + throw new FormatFlagsConversionMismatchException( + formatToken.getStrFlags(), currentConversionType); + } + } + + if ('a' == Character.toLowerCase(currentConversionType)) { + if (formatToken.isFlagSet(FormatToken.FLAG_COMMA) + || formatToken.isFlagSet(FormatToken.FLAG_PARENTHESIS)) { + throw new FormatFlagsConversionMismatchException( + formatToken.getStrFlags(), currentConversionType); + } + } + + if (null == arg) { + return transformFromNull(); + } + + Object arg2 = arg; + + if (!(arg2 instanceof Float || arg2 instanceof Double || arg2 instanceof BigDecimal)) { + if (arg2 instanceof Number) { + arg2 = Double.valueOf(((Number)arg2).doubleValue()); + } + else { + throw new IllegalFormatConversionException(currentConversionType, arg.getClass()); + } + } + + String specialNumberResult = transformFromSpecialNumber(); + if (null != specialNumberResult) { + return specialNumberResult; + } + + if ('a' != Character.toLowerCase(currentConversionType)) { + formatToken + .setPrecision(formatToken.isPrecisionSet() ? formatToken + .getPrecision() + : FormatToken.DEFAULT_PRECISION); + } + // output result + FloatUtil floatUtil = new FloatUtil(result, formatToken, + (DecimalFormat) NumberFormat.getInstance(locale), arg2); + floatUtil.transform(formatToken, result); + + formatToken.setPrecision(FormatToken.UNSET); + + if (getDecimalFormatSymbols().getMinusSign() == result.charAt(0)) { + if (formatToken.isFlagSet(FormatToken.FLAG_PARENTHESIS)) { + result = wrapParentheses(result); + return result.toString(); + } + } else { + if (formatToken.isFlagSet(FormatToken.FLAG_SPACE)) { + result.insert(0, ' '); + startIndex++; + } + if (formatToken.isFlagSet(FormatToken.FLAG_ADD)) { + result.insert(0, floatUtil.getAddSign()); + startIndex++; + } + } + + char firstChar = result.charAt(0); + if (formatToken.isFlagSet(FormatToken.FLAG_ZERO) + && (firstChar == floatUtil.getAddSign() || firstChar == floatUtil + .getMinusSign())) { + startIndex = 1; + } + + if ('a' == Character.toLowerCase(currentConversionType)) { + startIndex += 2; + } + return padding(result, startIndex); + } + + /* + * Transforms a Date to a formatted string. + */ + private String transformFromDateTime() { + int startIndex = 0; + char currentConversionType = formatToken.getConversionType(); + + if (formatToken.isPrecisionSet()) { + throw new IllegalFormatPrecisionException(formatToken + .getPrecision()); + } + + if (formatToken.isFlagSet(FormatToken.FLAG_SHARP)) { + throw new FormatFlagsConversionMismatchException(formatToken + .getStrFlags(), currentConversionType); + } + + if (formatToken.isFlagSet(FormatToken.FLAG_MINUS) + && FormatToken.UNSET == formatToken.getWidth()) { + throw new MissingFormatWidthException("-" //$NON-NLS-1$ + + currentConversionType); + } + + if (null == arg) { + return transformFromNull(); + } + + Calendar calendar; + if (arg instanceof Calendar) { + calendar = (Calendar) arg; + } else { + Date date = null; + if (arg instanceof Number) { + date = new Date(((Number) arg).longValue()); + } else if (arg instanceof Date) { + date = (Date) arg; + } else { + throw new IllegalFormatConversionException( + currentConversionType, arg.getClass()); + } + calendar = Calendar.getInstance(locale); + calendar.setTime(date); + } + + if (null == dateTimeUtil) { + dateTimeUtil = new DateTimeUtil(locale); + } + StringBuilder result = new StringBuilder(); + // output result + dateTimeUtil.transform(formatToken, calendar, result); + return padding(result, startIndex); + } + } + + private static class FloatUtil { + private StringBuilder result; + + private DecimalFormat decimalFormat; + + private FormatToken formatToken; + + private Object argument; + + private char minusSign; + + FloatUtil(StringBuilder result, FormatToken formatToken, + DecimalFormat decimalFormat, Object argument) { + this.result = result; + this.formatToken = formatToken; + this.decimalFormat = decimalFormat; + this.argument = argument; + this.minusSign = decimalFormat.getDecimalFormatSymbols() + .getMinusSign(); + } + + void transform(FormatToken aFormatToken, StringBuilder aResult) { + this.result = aResult; + this.formatToken = aFormatToken; + switch (formatToken.getConversionType()) { + case 'e': + case 'E': { + transform_e(); + break; + } + case 'f': { + transform_f(); + break; + } + case 'g': + case 'G': { + transform_g(); + break; + } + case 'a': + case 'A': { + transform_a(); + break; + } + default: { + throw new UnknownFormatConversionException(String + .valueOf(formatToken.getConversionType())); + } + } + } + + char getMinusSign() { + return minusSign; + } + + char getAddSign() { + return '+'; + } + + void transform_e() { + StringBuilder pattern = new StringBuilder(); + pattern.append('0'); + if (formatToken.getPrecision() > 0) { + pattern.append('.'); + char[] zeros = new char[formatToken.getPrecision()]; + Arrays.fill(zeros, '0'); + pattern.append(zeros); + } + pattern.append('E'); + pattern.append("+00"); //$NON-NLS-1$ + decimalFormat.applyPattern(pattern.toString()); + String formattedString = decimalFormat.format(argument); + result.append(formattedString.replace('E', 'e')); + + // if the flag is sharp and decimal seperator is always given + // out. + if (formatToken.isFlagSet(FormatToken.FLAG_SHARP) + && 0 == formatToken.getPrecision()) { + int indexOfE = result.indexOf("e"); //$NON-NLS-1$ + char dot = decimalFormat.getDecimalFormatSymbols() + .getDecimalSeparator(); + result.insert(indexOfE, dot); + } + } + + void transform_g() { + int precision = formatToken.getPrecision(); + precision = (0 == precision ? 1 : precision); + formatToken.setPrecision(precision); + + if (0.0 == ((Number) argument).doubleValue()) { + precision--; + formatToken.setPrecision(precision); + transform_f(); + return; + } + + boolean requireScientificRepresentation = true; + double d = ((Number) argument).doubleValue(); + d = Math.abs(d); + if (Double.isInfinite(d)) { + precision = formatToken.getPrecision(); + precision--; + formatToken.setPrecision(precision); + transform_e(); + return; + } + BigDecimal b = new BigDecimal(d, new MathContext(precision)); + d = b.doubleValue(); + long l = b.longValue(); + + if (d >= 1 && d < Math.pow(10, precision)) { + if (l < Math.pow(10, precision)) { + requireScientificRepresentation = false; + precision -= String.valueOf(l).length(); + precision = precision < 0 ? 0 : precision; + l = Math.round(d * Math.pow(10, precision + 1)); + if (String.valueOf(l).length() <= formatToken + .getPrecision()) { + precision++; + } + formatToken.setPrecision(precision); + } + + } else { + l = b.movePointRight(4).longValue(); + if (d >= Math.pow(10, -4) && d < 1) { + requireScientificRepresentation = false; + precision += 4 - String.valueOf(l).length(); + l = b.movePointRight(precision + 1).longValue(); + if (String.valueOf(l).length() <= formatToken + .getPrecision()) { + precision++; + } + l = b.movePointRight(precision).longValue(); + if (l >= Math.pow(10, precision - 4)) { + formatToken.setPrecision(precision); + } + } + } + if (requireScientificRepresentation) { + precision = formatToken.getPrecision(); + precision--; + formatToken.setPrecision(precision); + transform_e(); + } else { + transform_f(); + } + + } + + void transform_f() { + StringBuilder pattern = new StringBuilder(); + if (formatToken.isFlagSet(FormatToken.FLAG_COMMA)) { + pattern.append(','); + int groupingSize = decimalFormat.getGroupingSize(); + if (groupingSize > 1) { + char[] sharps = new char[groupingSize - 1]; + Arrays.fill(sharps, '#'); + pattern.append(sharps); + } + } + + pattern.append(0); + + if (formatToken.getPrecision() > 0) { + pattern.append('.'); + char[] zeros = new char[formatToken.getPrecision()]; + Arrays.fill(zeros, '0'); + pattern.append(zeros); + } + decimalFormat.applyPattern(pattern.toString()); + result.append(decimalFormat.format(argument)); + // if the flag is sharp and decimal seperator is always given + // out. + if (formatToken.isFlagSet(FormatToken.FLAG_SHARP) + && 0 == formatToken.getPrecision()) { + char dot = decimalFormat.getDecimalFormatSymbols() + .getDecimalSeparator(); + result.append(dot); + } + + } + + void transform_a() { + char currentConversionType = formatToken.getConversionType(); + + if (argument instanceof Float) { + Float F = (Float) argument; + result.append(Float.toHexString(F.floatValue())); + + } else if (argument instanceof Double) { + Double D = (Double) argument; + result.append(Double.toHexString(D.doubleValue())); + } else { + // BigInteger is not supported. + throw new IllegalFormatConversionException( + currentConversionType, argument.getClass()); + } + + if (!formatToken.isPrecisionSet()) { + return; + } + + int precision = formatToken.getPrecision(); + precision = (0 == precision ? 1 : precision); + int indexOfFirstFracitoanlDigit = result.indexOf(".") + 1; //$NON-NLS-1$ + int indexOfP = result.indexOf("p"); //$NON-NLS-1$ + int fractionalLength = indexOfP - indexOfFirstFracitoanlDigit; + + if (fractionalLength == precision) { + return; + } + + if (fractionalLength < precision) { + char zeros[] = new char[precision - fractionalLength]; + Arrays.fill(zeros, '0'); + result.insert(indexOfP, zeros); + return; + } + result.delete(indexOfFirstFracitoanlDigit + precision, indexOfP); + } + } + + private static class DateTimeUtil { + private Calendar calendar; + + private Locale locale; + + private StringBuilder result; + + private DateFormatSymbols dateFormatSymbols; + + DateTimeUtil(Locale locale) { + this.locale = locale; + } + + void transform(FormatToken formatToken, Calendar aCalendar, + StringBuilder aResult) { + this.result = aResult; + this.calendar = aCalendar; + char suffix = formatToken.getDateSuffix(); + + switch (suffix) { + case 'H': { + transform_H(); + break; + } + case 'I': { + transform_I(); + break; + } + case 'M': { + transform_M(); + break; + } + case 'S': { + transform_S(); + break; + } + case 'L': { + transform_L(); + break; + } + case 'N': { + transform_N(); + break; + } + case 'k': { + transform_k(); + break; + } + case 'l': { + transform_l(); + break; + } + case 'p': { + transform_p(true); + break; + } + case 's': { + transform_s(); + break; + } + case 'z': { + transform_z(); + break; + } + case 'Z': { + transform_Z(); + break; + } + case 'Q': { + transform_Q(); + break; + } + case 'B': { + transform_B(); + break; + } + case 'b': + case 'h': { + transform_b(); + break; + } + case 'A': { + transform_A(); + break; + } + case 'a': { + transform_a(); + break; + } + case 'C': { + transform_C(); + break; + } + case 'Y': { + transform_Y(); + break; + } + case 'y': { + transform_y(); + break; + } + case 'j': { + transform_j(); + break; + } + case 'm': { + transform_m(); + break; + } + case 'd': { + transform_d(); + break; + } + case 'e': { + transform_e(); + break; + } + case 'R': { + transform_R(); + break; + } + + case 'T': { + transform_T(); + break; + } + case 'r': { + transform_r(); + break; + } + case 'D': { + transform_D(); + break; + } + case 'F': { + transform_F(); + break; + } + case 'c': { + transform_c(); + break; + } + default: { + throw new UnknownFormatConversionException(String + .valueOf(formatToken.getConversionType()) + + formatToken.getDateSuffix()); + } + } + } + + private void transform_e() { + int day = calendar.get(Calendar.DAY_OF_MONTH); + result.append(day); + } + + private void transform_d() { + int day = calendar.get(Calendar.DAY_OF_MONTH); + result.append(paddingZeros(day, 2)); + } + + private void transform_m() { + int month = calendar.get(Calendar.MONTH); + // The returned month starts from zero, which needs to be + // incremented by 1. + month++; + result.append(paddingZeros(month, 2)); + } + + private void transform_j() { + int day = calendar.get(Calendar.DAY_OF_YEAR); + result.append(paddingZeros(day, 3)); + } + + private void transform_y() { + int year = calendar.get(Calendar.YEAR); + year %= 100; + result.append(paddingZeros(year, 2)); + } + + private void transform_Y() { + int year = calendar.get(Calendar.YEAR); + result.append(paddingZeros(year, 4)); + } + + private void transform_C() { + int year = calendar.get(Calendar.YEAR); + year /= 100; + result.append(paddingZeros(year, 2)); + } + + private void transform_a() { + int day = calendar.get(Calendar.DAY_OF_WEEK); + result.append(getDateFormatSymbols().getShortWeekdays()[day]); + } + + private void transform_A() { + int day = calendar.get(Calendar.DAY_OF_WEEK); + result.append(getDateFormatSymbols().getWeekdays()[day]); + } + + private void transform_b() { + int month = calendar.get(Calendar.MONTH); + result.append(getDateFormatSymbols().getShortMonths()[month]); + } + + private void transform_B() { + int month = calendar.get(Calendar.MONTH); + result.append(getDateFormatSymbols().getMonths()[month]); + } + + private void transform_Q() { + long milliSeconds = calendar.getTimeInMillis(); + result.append(milliSeconds); + } + + private void transform_s() { + long milliSeconds = calendar.getTimeInMillis(); + milliSeconds /= 1000; + result.append(milliSeconds); + } + + private void transform_Z() { + TimeZone timeZone = calendar.getTimeZone(); + result.append(timeZone + .getDisplayName( + timeZone.inDaylightTime(calendar.getTime()), + TimeZone.SHORT, locale)); + } + + private void transform_z() { + int zoneOffset = calendar.get(Calendar.ZONE_OFFSET); + zoneOffset /= 3600000; + zoneOffset *= 100; + if (zoneOffset >= 0) { + result.append('+'); + } + result.append(paddingZeros(zoneOffset, 4)); + } + + private void transform_p(boolean isLowerCase) { + int i = calendar.get(Calendar.AM_PM); + String s = getDateFormatSymbols().getAmPmStrings()[i]; + if (isLowerCase) { + s = s.toLowerCase(locale); + } + result.append(s); + } + + private void transform_N() { + // TODO System.nanoTime(); + long nanosecond = calendar.get(Calendar.MILLISECOND) * 1000000L; + result.append(paddingZeros(nanosecond, 9)); + } + + private void transform_L() { + int millisecond = calendar.get(Calendar.MILLISECOND); + result.append(paddingZeros(millisecond, 3)); + } + + private void transform_S() { + int second = calendar.get(Calendar.SECOND); + result.append(paddingZeros(second, 2)); + } + + private void transform_M() { + int minute = calendar.get(Calendar.MINUTE); + result.append(paddingZeros(minute, 2)); + } + + private void transform_l() { + int hour = calendar.get(Calendar.HOUR); + if (0 == hour) { + hour = 12; + } + result.append(hour); + } + + private void transform_k() { + int hour = calendar.get(Calendar.HOUR_OF_DAY); + result.append(hour); + } + + private void transform_I() { + int hour = calendar.get(Calendar.HOUR); + if (0 == hour) { + hour = 12; + } + result.append(paddingZeros(hour, 2)); + } + + private void transform_H() { + int hour = calendar.get(Calendar.HOUR_OF_DAY); + result.append(paddingZeros(hour, 2)); + } + + private void transform_R() { + transform_H(); + result.append(':'); + transform_M(); + } + + private void transform_T() { + transform_H(); + result.append(':'); + transform_M(); + result.append(':'); + transform_S(); + } + + private void transform_r() { + transform_I(); + result.append(':'); + transform_M(); + result.append(':'); + transform_S(); + result.append(' '); + transform_p(false); + } + + private void transform_D() { + transform_m(); + result.append('/'); + transform_d(); + result.append('/'); + transform_y(); + } + + private void transform_F() { + transform_Y(); + result.append('-'); + transform_m(); + result.append('-'); + transform_d(); + } + + private void transform_c() { + transform_a(); + result.append(' '); + transform_b(); + result.append(' '); + transform_d(); + result.append(' '); + transform_T(); + result.append(' '); + transform_Z(); + result.append(' '); + transform_Y(); + } + + private static String paddingZeros(long number, int length) { + int len = length; + StringBuilder result = new StringBuilder(); + result.append(number); + int startIndex = 0; + if (number < 0) { + len++; + startIndex = 1; + } + len -= result.length(); + if (len > 0) { + char[] zeros = new char[len]; + Arrays.fill(zeros, '0'); + result.insert(startIndex, zeros); + } + return result.toString(); + } + + private DateFormatSymbols getDateFormatSymbols() { + if (null == dateFormatSymbols) { + dateFormatSymbols = new DateFormatSymbols(locale); + } + return dateFormatSymbols; + } + } + + private static class ParserStateMachine { + + private static final char EOS = (char) -1; + + private static final int EXIT_STATE = 0; + + private static final int ENTRY_STATE = 1; + + private static final int START_CONVERSION_STATE = 2; + + private static final int FLAGS_STATE = 3; + + private static final int WIDTH_STATE = 4; + + private static final int PRECISION_STATE = 5; + + private static final int CONVERSION_TYPE_STATE = 6; + + private static final int SUFFIX_STATE = 7; + + private FormatToken token; + + private int state = ENTRY_STATE; + + private char currentChar = 0; + + private CharBuffer format = null; + + ParserStateMachine(CharBuffer format) { + this.format = format; + } + + void reset() { + this.currentChar = (char) FormatToken.UNSET; + this.state = ENTRY_STATE; + this.token = null; + } + + /* + * Gets the information about the current format token. Information is + * recorded in the FormatToken returned and the position of the stream + * for the format string will be advanced till the next format token. + */ + FormatToken getNextFormatToken() { + token = new FormatToken(); + token.setFormatStringStartIndex(format.position()); + + // FINITE AUTOMATIC MACHINE + while (true) { + + if (ParserStateMachine.EXIT_STATE != state) { + // exit state does not need to get next char + currentChar = getNextFormatChar(); + if (EOS == currentChar + && ParserStateMachine.ENTRY_STATE != state) { + throw new UnknownFormatConversionException( + getFormatString()); + } + } + + switch (state) { + // exit state + case ParserStateMachine.EXIT_STATE: { + process_EXIT_STATE(); + return token; + } + // plain text state, not yet applied converter + case ParserStateMachine.ENTRY_STATE: { + process_ENTRY_STATE(); + break; + } + // begins converted string + case ParserStateMachine.START_CONVERSION_STATE: { + process_START_CONVERSION_STATE(); + break; + } + case ParserStateMachine.FLAGS_STATE: { + process_FlAGS_STATE(); + break; + } + case ParserStateMachine.WIDTH_STATE: { + process_WIDTH_STATE(); + break; + } + case ParserStateMachine.PRECISION_STATE: { + process_PRECISION_STATE(); + break; + } + case ParserStateMachine.CONVERSION_TYPE_STATE: { + process_CONVERSION_TYPE_STATE(); + break; + } + case ParserStateMachine.SUFFIX_STATE: { + process_SUFFIX_STATE(); + break; + } + } + } + } + + /* + * Gets next char from the format string. + */ + private char getNextFormatChar() { + if (format.hasRemaining()) { + return format.get(); + } + return EOS; + } + + private String getFormatString() { + int end = format.position(); + format.rewind(); + String formatString = format.subSequence( + token.getFormatStringStartIndex(), end).toString(); + format.position(end); + return formatString; + } + + private void process_ENTRY_STATE() { + if (EOS == currentChar) { + state = ParserStateMachine.EXIT_STATE; + } else if ('%' == currentChar) { + // change to conversion type state + state = START_CONVERSION_STATE; + } + // else remains in ENTRY_STATE + } + + private void process_START_CONVERSION_STATE() { + if (Character.isDigit(currentChar)) { + int position = format.position() - 1; + int number = parseInt(format); + char nextChar = 0; + if (format.hasRemaining()) { + nextChar = format.get(); + } + if ('$' == nextChar) { + // the digital sequence stands for the argument + // index. + int argIndex = number; + // k$ stands for the argument whose index is k-1 except that + // 0$ and 1$ both stands for the first element. + if (argIndex > 0) { + token.setArgIndex(argIndex - 1); + } else if (argIndex == FormatToken.UNSET) { + throw new MissingFormatArgumentException( + getFormatString()); + } + state = FLAGS_STATE; + } else { + // the digital zero stands for one format flag. + if ('0' == currentChar) { + state = FLAGS_STATE; + format.position(position); + } else { + // the digital sequence stands for the width. + state = WIDTH_STATE; + // do not get the next char. + format.position(format.position() - 1); + token.setWidth(number); + } + } + currentChar = nextChar; + } else if ('<' == currentChar) { + state = FLAGS_STATE; + token.setArgIndex(FormatToken.LAST_ARGUMENT_INDEX); + } else { + state = FLAGS_STATE; + // do not get the next char. + format.position(format.position() - 1); + } + + } + + private void process_FlAGS_STATE() { + if (token.setFlag(currentChar)) { + // remains in FLAGS_STATE + } else if (Character.isDigit(currentChar)) { + token.setWidth(parseInt(format)); + state = WIDTH_STATE; + } else if ('.' == currentChar) { + state = PRECISION_STATE; + } else { + state = CONVERSION_TYPE_STATE; + // do not get the next char. + format.position(format.position() - 1); + } + } + + private void process_WIDTH_STATE() { + if ('.' == currentChar) { + state = PRECISION_STATE; + } else { + state = CONVERSION_TYPE_STATE; + // do not get the next char. + format.position(format.position() - 1); + } + } + + private void process_PRECISION_STATE() { + if (Character.isDigit(currentChar)) { + token.setPrecision(parseInt(format)); + } else { + // the precision is required but not given by the + // format string. + throw new UnknownFormatConversionException(getFormatString()); + } + state = CONVERSION_TYPE_STATE; + } + + private void process_CONVERSION_TYPE_STATE() { + token.setConversionType(currentChar); + if ('t' == currentChar || 'T' == currentChar) { + state = SUFFIX_STATE; + } else { + state = EXIT_STATE; + } + + } + + private void process_SUFFIX_STATE() { + token.setDateSuffix(currentChar); + state = EXIT_STATE; + } + + private void process_EXIT_STATE() { + token.setPlainText(getFormatString()); + } + + /* + * Parses integer value from the given buffer + */ + private int parseInt(CharBuffer buffer) { + int start = buffer.position() - 1; + int end = buffer.limit(); + while (buffer.hasRemaining()) { + if (!Character.isDigit(buffer.get())) { + end = buffer.position() - 1; + break; + } + } + buffer.position(0); + String intStr = buffer.subSequence(start, end).toString(); + buffer.position(end); + try { + return Integer.parseInt(intStr); + } catch (NumberFormatException e) { + return FormatToken.UNSET; + } + } + } +} diff --git a/trunk/infrastructure/net.appjet.common/util/LimitedSizeMapping.java b/trunk/infrastructure/net.appjet.common/util/LimitedSizeMapping.java new file mode 100644 index 0000000..331baca --- /dev/null +++ b/trunk/infrastructure/net.appjet.common/util/LimitedSizeMapping.java @@ -0,0 +1,28 @@ +/** + * Copyright 2009 Google Inc. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS-IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.appjet.common.util; + +public class LimitedSizeMapping extends ExpiringMapping { + + public LimitedSizeMapping(final int maxSize) { + super(new ExpiryPolicy() { + public boolean hasExpired(long timeStamp, long now, int rank) { + return rank > maxSize; + } + }); + } +} -- cgit v1.2.3