| /** |
| * 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 licenses 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 org.apache.activemq.blob; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.net.HttpURLConnection; |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| |
| import javax.jms.JMSException; |
| |
| import org.apache.activemq.command.ActiveMQBlobMessage; |
| |
| /** |
| * A default implementation of {@link BlobUploadStrategy} which uses the URL |
| * class to upload files or streams to a remote URL |
| */ |
| public class DefaultBlobUploadStrategy extends DefaultStrategy implements BlobUploadStrategy { |
| |
| public DefaultBlobUploadStrategy(BlobTransferPolicy transferPolicy) { |
| super(transferPolicy); |
| } |
| |
| public URL uploadFile(ActiveMQBlobMessage message, File file) throws JMSException, IOException { |
| return uploadStream(message, new FileInputStream(file)); |
| } |
| |
| public URL uploadStream(ActiveMQBlobMessage message, InputStream fis) throws JMSException, IOException { |
| URL url = createMessageURL(message); |
| |
| HttpURLConnection connection = (HttpURLConnection)url.openConnection(); |
| connection.setRequestMethod("PUT"); |
| connection.setDoOutput(true); |
| |
| // use chunked mode or otherwise URLConnection loads everything into |
| // memory |
| // (chunked mode not supported before JRE 1.5) |
| connection.setChunkedStreamingMode(transferPolicy.getBufferSize()); |
| |
| OutputStream os = connection.getOutputStream(); |
| |
| byte[] buf = new byte[transferPolicy.getBufferSize()]; |
| for (int c = fis.read(buf); c != -1; c = fis.read(buf)) { |
| os.write(buf, 0, c); |
| os.flush(); |
| } |
| os.close(); |
| fis.close(); |
| |
| if (!isSuccessfulCode(connection.getResponseCode())) { |
| throw new IOException("PUT was not successful: " + connection.getResponseCode() + " " |
| + connection.getResponseMessage()); |
| } |
| |
| return url; |
| } |
| |
| |
| } |