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        return uploadStream(message, new FileInputStream(file));
043    }
044
045    @Override
046    public URL uploadStream(ActiveMQBlobMessage message, InputStream in)
047            throws JMSException, IOException {
048
049        FTPClient ftp = createFTP();
050        try {
051            String path = url.getPath();
052            String workingDir = path.substring(0, path.lastIndexOf("/"));
053            String filename = message.getMessageId().toString().replaceAll(":", "_");
054            ftp.setFileType(FTPClient.BINARY_FILE_TYPE);
055
056            String url;
057            if(!ftp.changeWorkingDirectory(workingDir)) {
058                url = this.url.toString().replaceFirst(this.url.getPath(), "")+"/";
059            } else {
060                url = this.url.toString();
061            }
062
063            if (!ftp.storeFile(filename, in)) {
064                throw new JMSException("FTP store failed: " + ftp.getReplyString());
065            }
066            return new URL(url + filename);
067        } finally {
068            ftp.quit();
069            ftp.disconnect();
070        }
071
072    }
073
074}