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.camel.component.queue; 018 019 import java.util.concurrent.BlockingQueue; 020 021 import org.apache.camel.Consumer; 022 import org.apache.camel.Exchange; 023 import org.apache.camel.Processor; 024 import org.apache.camel.Producer; 025 import org.apache.camel.impl.DefaultEndpoint; 026 import org.apache.camel.impl.DefaultExchange; 027 import org.apache.camel.impl.DefaultProducer; 028 029 /** 030 * Represents a queue endpoint that uses a {@link BlockingQueue} 031 * object to process inbound exchanges. 032 * 033 * @org.apache.xbean.XBean 034 * @version $Revision: 519973 $ 035 */ 036 public class QueueEndpoint<E extends Exchange> extends DefaultEndpoint<E> { 037 private BlockingQueue<E> queue; 038 039 public QueueEndpoint(String uri, QueueComponent<E> component) { 040 super(uri, component); 041 this.queue = component.createQueue(); 042 } 043 044 public Producer<E> createProducer() throws Exception { 045 return new DefaultProducer(this) { 046 public void process(Exchange exchange) { 047 queue.add(toExchangeType(exchange)); 048 } 049 }; 050 } 051 052 public Consumer<E> createConsumer(Processor processor) throws Exception { 053 return new QueueEndpointConsumer<E>(this, processor); 054 } 055 056 public E createExchange() { 057 // How can we create a specific Exchange if we are generic?? 058 // perhaps it would be better if we did not implement this. 059 return (E) new DefaultExchange(getContext()); 060 } 061 062 public BlockingQueue<E> getQueue() { 063 return queue; 064 } 065 066 public boolean isSingleton() { 067 return true; 068 } 069 070 071 }