/*
* Copyright 2013 Google Inc. All Rights Reserved.
* 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 com.google.appengine.tck.blobstore.support;
import java.io.IOException;
import java.nio.ByteBuffer;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.google.appengine.api.blobstore.BlobKey;
import com.google.appengine.api.files.AppEngineFile;
import com.google.appengine.api.files.FileService;
import com.google.appengine.api.files.FileServiceFactory;
import com.google.appengine.api.files.FileWriteChannel;
/**
* @author <a href="mailto:mluksa@redhat.com">Marko Luksa</a>
*/
public class ServeBlobServlet extends HttpServlet {
private FileService service = FileServiceFactory.getFileService();
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String mimeType = request.getParameter("mimeType");
String contents = request.getParameter("contents");
String blobRange = request.getParameter("blobRange");
String name = request.getParameter("name");
AppEngineFile file = service.createNewBlobFile(mimeType, name);
writeToFile(file, contents);
BlobKey blobKey = service.getBlobKey(file);
response.addHeader("X-AppEngine-BlobKey", blobKey.getKeyString());
if (blobRange != null) {
response.addHeader("X-AppEngine-BlobRange", blobRange);
}
}
private void writeToFile(AppEngineFile file, String content) throws IOException {
FileWriteChannel channel = service.openWriteChannel(file, true);
try {
channel.write(ByteBuffer.wrap(content.getBytes()));
} finally {
channel.closeFinally();
}
}
}