| /** |
| * 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.FilterInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.MalformedURLException; |
| |
| import javax.jms.JMSException; |
| |
| import org.apache.activemq.command.ActiveMQBlobMessage; |
| import org.apache.commons.net.ftp.FTPClient; |
| |
| /** |
| * A FTP implementation for {@link BlobDownloadStrategy}. |
| */ |
| public class FTPBlobDownloadStrategy extends FTPStrategy implements BlobDownloadStrategy { |
| |
| public FTPBlobDownloadStrategy(BlobTransferPolicy transferPolicy) throws MalformedURLException { |
| super(transferPolicy); |
| } |
| |
| public InputStream getInputStream(ActiveMQBlobMessage message) throws IOException, JMSException { |
| url = message.getURL(); |
| final FTPClient ftp = createFTP(); |
| String path = url.getPath(); |
| String workingDir = path.substring(0, path.lastIndexOf("/")); |
| String file = path.substring(path.lastIndexOf("/") + 1); |
| ftp.changeWorkingDirectory(workingDir); |
| ftp.setFileType(FTPClient.BINARY_FILE_TYPE); |
| |
| InputStream input = new FilterInputStream(ftp.retrieveFileStream(file)) { |
| |
| public void close() throws IOException { |
| in.close(); |
| ftp.quit(); |
| ftp.disconnect(); |
| } |
| }; |
| |
| return input; |
| } |
| |
| public void deleteFile(ActiveMQBlobMessage message) throws IOException, JMSException { |
| url = message.getURL(); |
| final FTPClient ftp = createFTP(); |
| |
| String path = url.getPath(); |
| try { |
| if (!ftp.deleteFile(path)) { |
| throw new JMSException("Delete file failed: " + ftp.getReplyString()); |
| } |
| } finally { |
| ftp.quit(); |
| ftp.disconnect(); |
| } |
| |
| } |
| |
| } |