text: /**
   * 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();
  }
  