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.camel.component.bean; 018 019import org.apache.camel.AsyncCallback; 020import org.apache.camel.Exchange; 021import org.apache.camel.NoSuchBeanException; 022import org.apache.camel.impl.DefaultAsyncProducer; 023import org.apache.camel.util.ServiceHelper; 024 025/** 026 * Bean {@link org.apache.camel.Producer} 027 */ 028public class BeanProducer extends DefaultAsyncProducer { 029 030 private final BeanProcessor processor; 031 private boolean beanStarted; 032 033 public BeanProducer(BeanEndpoint endpoint, BeanProcessor processor) { 034 super(endpoint); 035 this.processor = processor; 036 this.beanStarted = false; 037 } 038 039 @Override 040 public boolean process(Exchange exchange, AsyncCallback callback) { 041 return processor.process(exchange, callback); 042 } 043 044 @Override 045 protected void doStart() throws Exception { 046 super.doStart(); 047 048 if (processor.getBeanHolder() instanceof ConstantBeanHolder) { 049 try { 050 // Start the bean if it implements Service interface and if cached 051 // so meant to be reused 052 ServiceHelper.startService(processor.getBean()); 053 beanStarted = true; 054 } catch (NoSuchBeanException e) { 055 } 056 } 057 } 058 059 @Override 060 protected void doStop() throws Exception { 061 if (beanStarted) { 062 try { 063 // Stop the bean if it implements Service interface and if cached 064 // so meant to be reused 065 ServiceHelper.stopService(processor.getBean()); 066 beanStarted = false; 067 } catch (NoSuchBeanException e) { 068 } 069 } 070 071 super.doStop(); 072 } 073}