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.beanclass; 018 019import java.util.Map; 020 021import org.apache.camel.Endpoint; 022import org.apache.camel.component.bean.BeanComponent; 023import org.apache.camel.component.bean.BeanHolder; 024import org.apache.camel.component.bean.ConstantBeanHolder; 025import org.apache.camel.component.bean.ConstantTypeBeanHolder; 026import org.apache.camel.util.IntrospectionSupport; 027 028/** 029 * The <a href="http://camel.apache.org/class.html">Class Component</a> is for binding JavaBeans to Camel message exchanges based on class name. 030 * <p/> 031 * This component is an extension to the {@link org.apache.camel.component.bean.BeanComponent}. 032 * 033 * @version 034 */ 035public class ClassComponent extends BeanComponent { 036 037 public ClassComponent() { 038 super(ClassEndpoint.class); 039 } 040 041 protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) throws Exception { 042 ClassEndpoint endpoint = new ClassEndpoint(uri, this); 043 endpoint.setBeanName(remaining); 044 045 // bean name is the FQN 046 String name = endpoint.getBeanName(); 047 Class<?> clazz = getCamelContext().getClassResolver().resolveMandatoryClass(name); 048 049 // the bean.xxx options is for the bean 050 Map<String, Object> options = IntrospectionSupport.extractProperties(parameters, "bean."); 051 endpoint.setParameters(options); 052 053 BeanHolder holder; 054 055 // if there is options then we need to create a bean instance 056 if (!options.isEmpty()) { 057 // create bean 058 Object bean = getCamelContext().getInjector().newInstance(clazz); 059 060 // now set additional properties on it 061 setProperties(bean, options); 062 063 holder = new ConstantBeanHolder(bean, getCamelContext()); 064 } else { 065 // otherwise refer to the type 066 holder = new ConstantTypeBeanHolder(clazz, getCamelContext()); 067 } 068 069 validateParameters(uri, options, null); 070 071 // and register the bean as a holder on the endpoint 072 endpoint.setBeanHolder(holder); 073 074 return endpoint; 075 } 076 077}