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.concurrent.TimeUnit; 020 021 import org.apache.camel.AsyncCallback; 022 import org.apache.camel.AsyncProcessor; 023 import org.apache.camel.Consumer; 024 import org.apache.camel.Exchange; 025 import org.apache.camel.Processor; 026 import org.apache.camel.impl.ServiceSupport; 027 import org.apache.camel.impl.converter.AsyncProcessorTypeConverter; 028 import org.apache.commons.logging.Log; 029 import org.apache.commons.logging.LogFactory; 030 031 /** 032 * @version $Revision: 36321 $ 033 */ 034 public class SedaConsumer extends ServiceSupport implements Consumer, Runnable { 035 private static final transient Log LOG = LogFactory.getLog(SedaConsumer.class); 036 037 private SedaEndpoint endpoint; 038 private AsyncProcessor processor; 039 private Thread thread; 040 041 public SedaConsumer(SedaEndpoint endpoint, Processor processor) { 042 this.endpoint = endpoint; 043 this.processor = AsyncProcessorTypeConverter.convert(processor); 044 } 045 046 @Override 047 public String toString() { 048 return "SedaConsumer: " + endpoint.getEndpointUri(); 049 } 050 051 public void run() { 052 while (isRunAllowed()) { 053 final Exchange exchange; 054 try { 055 exchange = endpoint.getQueue().poll(1000, TimeUnit.MILLISECONDS); 056 } catch (InterruptedException e) { 057 if (LOG.isDebugEnabled()) { 058 LOG.debug("Interupted: " + e, e); 059 } 060 continue; 061 } 062 if (exchange != null && isRunAllowed()) { 063 try { 064 processor.process(exchange, new AsyncCallback() { 065 public void done(boolean sync) { 066 } 067 }); 068 } catch (Exception e) { 069 LOG.error("Seda queue caught: " + e, e); 070 } 071 } 072 } 073 } 074 075 protected void doStart() throws Exception { 076 thread = new Thread(this, getThreadName(endpoint.getEndpointUri())); 077 thread.setDaemon(true); 078 thread.start(); 079 } 080 081 protected void doStop() throws Exception { 082 thread.join(); 083 } 084 085 }