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.IOException;
021import java.io.InputStream;
022import java.net.URL;
023
024import javax.jms.JMSException;
025
026import org.apache.activemq.command.ActiveMQBlobMessage;
027
028/**
029 * A helper class to represent a required upload of a BLOB to some remote URL
030 *
031 *
032 */
033public class BlobUploader {
034
035    private final BlobTransferPolicy blobTransferPolicy;
036    private File file;
037    private InputStream in;
038
039    public BlobUploader(BlobTransferPolicy blobTransferPolicy, InputStream in) {
040        // need to do a defensive copy
041        this.blobTransferPolicy = blobTransferPolicy.copy();
042        this.in = in;
043    }
044
045    public BlobUploader(BlobTransferPolicy blobTransferPolicy, File file) {
046        // need to do a defensive copy
047        this.blobTransferPolicy = blobTransferPolicy.copy();
048        this.file = file;
049    }
050
051    public URL upload(ActiveMQBlobMessage message) throws JMSException, IOException {
052        if (file != null) {
053            return getStrategy().uploadFile(message, file);
054        } else {
055            return getStrategy().uploadStream(message, in);
056        }
057    }
058
059    public BlobTransferPolicy getBlobTransferPolicy() {
060        return blobTransferPolicy;
061    }
062
063    public BlobUploadStrategy getStrategy() {
064        return getBlobTransferPolicy().getUploadStrategy();
065    }
066}