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.bean; 018 019 import java.util.Map; 020 021 import org.apache.camel.Endpoint; 022 import org.apache.camel.Processor; 023 import org.apache.camel.converter.ObjectConverter; 024 import org.apache.camel.impl.DefaultComponent; 025 import org.apache.camel.impl.ProcessorEndpoint; 026 import org.apache.commons.logging.Log; 027 import org.apache.commons.logging.LogFactory; 028 029 /** 030 * An alternative to the <a href="http://activemq.apache.org/pojo.html">POJO Component</a> 031 * which implements the <a href="http://activemq.apache.org/bean.html">Bean Component</a> 032 * which will look up the URI in the Spring ApplicationContext and use that to handle message dispatching. 033 * 034 * @version $Revision: 585 $ 035 */ 036 public class BeanComponent extends DefaultComponent { 037 private static final transient Log LOG = LogFactory.getLog(BeanComponent.class); 038 private ParameterMappingStrategy parameterMappingStrategy; 039 040 public BeanComponent() { 041 } 042 043 /** 044 * A helper method to create a new endpoint from a bean with a generated URI 045 */ 046 public ProcessorEndpoint createEndpoint(Object bean) { 047 String uri = "bean:generated:" + bean; 048 return createEndpoint(bean, uri); 049 } 050 051 /** 052 * A helper method to create a new endpoint from a bean with a given URI 053 */ 054 public ProcessorEndpoint createEndpoint(Object bean, String uri) { 055 BeanProcessor processor = new BeanProcessor(bean, getCamelContext(), getParameterMappingStrategy()); 056 return createEndpoint(uri, processor); 057 } 058 059 public ParameterMappingStrategy getParameterMappingStrategy() { 060 if (parameterMappingStrategy == null) { 061 parameterMappingStrategy = createParameterMappingStrategy(); 062 } 063 return parameterMappingStrategy; 064 } 065 066 public void setParameterMappingStrategy(ParameterMappingStrategy parameterMappingStrategy) { 067 this.parameterMappingStrategy = parameterMappingStrategy; 068 } 069 070 // Implementation methods 071 //----------------------------------------------------------------------- 072 protected Endpoint createEndpoint(String uri, String remaining, Map parameters) throws Exception { 073 BeanEndpoint endpoint = new BeanEndpoint(uri, this); 074 endpoint.setBeanName(remaining); 075 endpoint.setCache(ObjectConverter.toBool(parameters.remove("cache"))); 076 Processor processor = endpoint.getProcessor(); 077 setProperties(processor, parameters); 078 return endpoint; 079 } 080 081 protected BeanEndpoint createEndpoint(String uri, BeanProcessor processor) { 082 return new BeanEndpoint(uri, this, processor); 083 } 084 085 protected ParameterMappingStrategy createParameterMappingStrategy() { 086 return BeanInfo.createParameterMappingStrategy(getCamelContext()); 087 } 088 }