001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.activemq.blob;
018
019import java.io.File;
020import java.io.FileInputStream;
021import java.io.IOException;
022import java.io.InputStream;
023import java.net.MalformedURLException;
024import java.net.URL;
025
026import javax.jms.JMSException;
027
028import org.apache.activemq.command.ActiveMQBlobMessage;
029import org.apache.commons.net.ftp.FTPClient;
030
031/**
032 * A FTP implementation of {@link BlobUploadStrategy}.
033 */
034public class FTPBlobUploadStrategy extends FTPStrategy implements BlobUploadStrategy {
035
036    public FTPBlobUploadStrategy(BlobTransferPolicy transferPolicy) throws MalformedURLException {
037        super(transferPolicy);
038    }
039
040    @Override
041    public URL uploadFile(ActiveMQBlobMessage message, File file) throws JMSException, IOException {
042        try(FileInputStream fis = new FileInputStream(file)) {
043            return uploadStream(message, fis);
044        }
045    }
046
047    @Override
048    public URL uploadStream(ActiveMQBlobMessage message, InputStream in)
049            throws JMSException, IOException {
050
051        FTPClient ftp = createFTP();
052        try {
053            String path = url.getPath();
054            String workingDir = path.substring(0, path.lastIndexOf("/"));
055            String filename = message.getMessageId().toString().replaceAll(":", "_");
056            ftp.setFileType(FTPClient.BINARY_FILE_TYPE);
057
058            String url;
059            if(!ftp.changeWorkingDirectory(workingDir)) {
060                url = this.url.toString().replaceFirst(this.url.getPath(), "")+"/";
061            } else {
062                url = this.url.toString();
063            }
064
065            if (!ftp.storeFile(filename, in)) {
066                throw new JMSException("FTP store failed: " + ftp.getReplyString());
067            }
068            return new URL(url + filename);
069        } finally {
070            ftp.quit();
071            ftp.disconnect();
072        }
073
074    }
075
076}