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Diffstat (limited to 'infrastructure/framework-src/modules/blob.js')
-rw-r--r-- | infrastructure/framework-src/modules/blob.js | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/infrastructure/framework-src/modules/blob.js b/infrastructure/framework-src/modules/blob.js new file mode 100644 index 0000000..af788a0 --- /dev/null +++ b/infrastructure/framework-src/modules/blob.js @@ -0,0 +1,50 @@ +/** + * 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. + */ + + + +/** + * Constructs and returns a new Blob from a JavaScript string. + */ +function stringToBlob(contentType, string) { + return { contentType: contentType, + _stringData: string, + numDataBytes: string.length*2 }; +} + +/** + * Constructs and returns a new Blob from a Java byte array (byte[]). + */ +function byteArrayToBlob(contentType, javaByteArray) { + return { contentType: contentType, + _binaryData: javaByteArray, + numDataBytes: javaByteArray.length }; +} + +/** + * Serves a Blob to the client, using the appropriate content-type, + * and stops execution of the current request. + */ +function serveBlob(blob) { + response.setContentType(blob.contentType); + if (blob._binaryData) { + response.writeBytes(new java.lang.String(blob._binaryData, 0)); + } + else if (blob._stringData) { + response.write(blob._stringData); + } + response.stop(); +} |