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.seda;
018    
019    import java.util.ArrayList;
020    import java.util.List;
021    import java.util.concurrent.BlockingQueue;
022    
023    import org.apache.camel.Component;
024    import org.apache.camel.Consumer;
025    import org.apache.camel.Exchange;
026    import org.apache.camel.Processor;
027    import org.apache.camel.Producer;
028    import org.apache.camel.impl.DefaultEndpoint;
029    import org.apache.camel.spi.BrowsableEndpoint;
030    import org.apache.camel.util.ObjectHelper;
031    
032    /**
033     * An implementation of the <a
034     * href="http://activemq.apache.org/camel/queue.html">Queue components</a> for
035     * asynchronous SEDA exchanges on a {@link BlockingQueue} within a CamelContext
036     *
037     * @version $Revision: 2624 $
038     */
039    public class SedaEndpoint extends DefaultEndpoint<Exchange> implements BrowsableEndpoint<Exchange> {
040        private BlockingQueue<Exchange> queue;
041        private int concurrentConsumers = 1;
042    
043        public SedaEndpoint(String endpointUri, Component component, BlockingQueue<Exchange> queue) {
044            this(endpointUri, component, queue, 1);
045        }
046    
047        public SedaEndpoint(String endpointUri, Component component, BlockingQueue<Exchange> queue, int concurrentConsumers) {
048            super(endpointUri, component);
049            this.queue = queue;
050            this.concurrentConsumers = concurrentConsumers;
051        }
052    
053        public SedaEndpoint(String endpointUri, BlockingQueue<Exchange> queue) {
054            this(endpointUri, queue, 1);
055        }
056    
057        public SedaEndpoint(String endpointUri, BlockingQueue<Exchange> queue, int concurrentConsumers) {
058            super(endpointUri);
059            ObjectHelper.notNull(queue, "queue");
060            this.queue = queue;
061            this.concurrentConsumers = concurrentConsumers;
062        }
063        
064        public Producer createProducer() throws Exception {
065            return new CollectionProducer(this, getQueue());
066        }
067    
068        public Consumer createConsumer(Processor processor) throws Exception {
069            return new SedaConsumer(this, processor);
070        }
071    
072        public BlockingQueue<Exchange> getQueue() {
073            return queue;
074        }
075        
076        public void setConcurrentConsumers(int concurrentConsumers) {
077            this.concurrentConsumers = concurrentConsumers;
078        }
079        
080        public int getConcurrentConsumers() {
081            return concurrentConsumers;
082        }
083        
084        public boolean isSingleton() {
085            return true;
086        }
087    
088        public List<Exchange> getExchanges() {
089            return new ArrayList<Exchange>(getQueue());
090        }
091    }