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+/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (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.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Rhino serialization code, released
+ * Sept. 25, 2001.
+ *
+ * The Initial Developer of the Original Code is
+ * Norris Boyd.
+ * Portions created by the Initial Developer are Copyright (C) 2001
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * Norris Boyd
+ * Igor Bukanov
+ * Attila Szegedi
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License Version 2 or later (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of those above. If
+ * you wish to allow use of your version of this file only under the terms of
+ * the GPL and not to allow others to use your version of this file under the
+ * MPL, indicate your decision by deleting the provisions above and replacing
+ * them with the notice and other provisions required by the GPL. If you do
+ * not delete the provisions above, a recipient may use your version of this
+ * file under either the MPL or the GPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+// API class
+
+package org.mozilla.javascript.serialize;
+
+import java.io.*;
+
+import org.mozilla.javascript.*;
+
+/**
+ * Class ScriptableInputStream is used to read in a JavaScript
+ * object or function previously serialized with a ScriptableOutputStream.
+ * References to names in the exclusion list
+ * replaced with references to the top-level scope specified during
+ * creation of the ScriptableInputStream.
+ *
+ * @author Norris Boyd
+ */
+
+public class ScriptableInputStream extends ObjectInputStream {
+
+ /**
+ * Create a ScriptableInputStream.
+ * @param in the InputStream to read from.
+ * @param scope the top-level scope to create the object in.
+ */
+ public ScriptableInputStream(InputStream in, Scriptable scope)
+ throws IOException
+ {
+ super(in);
+ this.scope = scope;
+ enableResolveObject(true);
+ Context cx = Context.getCurrentContext();
+ if (cx != null) {
+ this.classLoader = cx.getApplicationClassLoader();
+ }
+ }
+
+ protected Class resolveClass(ObjectStreamClass desc)
+ throws IOException, ClassNotFoundException
+ {
+ String name = desc.getName();
+ if (classLoader != null) {
+ try {
+ return classLoader.loadClass(name);
+ } catch (ClassNotFoundException ex) {
+ // fall through to default loading
+ }
+ }
+ return super.resolveClass(desc);
+ }
+
+ protected Object resolveObject(Object obj)
+ throws IOException
+ {
+ if (obj instanceof ScriptableOutputStream.PendingLookup) {
+ String name = ((ScriptableOutputStream.PendingLookup)obj).getName();
+ obj = ScriptableOutputStream.lookupQualifiedName(scope, name);
+ if (obj == Scriptable.NOT_FOUND) {
+ throw new IOException("Object " + name + " not found upon " +
+ "deserialization.");
+ }
+ }else if (obj instanceof UniqueTag) {
+ obj = ((UniqueTag)obj).readResolve();
+ }else if (obj instanceof Undefined) {
+ obj = ((Undefined)obj).readResolve();
+ }
+ return obj;
+ }
+
+ private Scriptable scope;
+ private ClassLoader classLoader;
+}