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 */ 017 package org.apache.activemq.blob; 018 019 import java.io.IOException; 020 import java.io.InputStream; 021 import javax.jms.JMSException; 022 import org.apache.activemq.command.ActiveMQBlobMessage; 023 024 025 /** 026 * Mediator for Blob Download 027 */ 028 public class BlobDownloader { 029 030 private BlobTransferPolicy blobTransferPolicy; 031 032 public BlobDownloader(BlobTransferPolicy transferPolicy) { 033 this.blobTransferPolicy = transferPolicy; 034 } 035 036 public InputStream getInputStream(ActiveMQBlobMessage message) throws IOException, JMSException { 037 return getStrategy().getInputStream(message); 038 } 039 040 public void deleteFile(ActiveMQBlobMessage message) throws IOException, JMSException { 041 getStrategy().deleteFile(message); 042 } 043 044 public BlobTransferPolicy getBlobTransferPolicy() { 045 return blobTransferPolicy; 046 } 047 048 public BlobDownloadStrategy getStrategy() { 049 return getBlobTransferPolicy().getDownloadStrategy(); 050 } 051 }