001 /** 002 * 003 * Licensed to the Apache Software Foundation (ASF) under one or more 004 * contributor license agreements. See the NOTICE file distributed with 005 * this work for additional information regarding copyright ownership. 006 * The ASF licenses this file to You under the Apache License, Version 2.0 007 * (the "License"); you may not use this file except in compliance with 008 * the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 package org.apache.camel.component.processor; 019 020 import org.apache.camel.Endpoint; 021 import org.apache.camel.Processor; 022 import org.apache.camel.Exchange; 023 import org.apache.camel.Consumer; 024 import org.apache.camel.Producer; 025 import org.apache.camel.Component; 026 import org.apache.camel.impl.DefaultEndpoint; 027 import org.apache.camel.impl.DefaultExchange; 028 import org.apache.camel.impl.DefaultProducer; 029 import org.apache.camel.processor.loadbalancer.LoadBalancer; 030 031 /** 032 * A base class for creating {@link Endpoint} implementations from a {@link Processor} 033 * 034 * @version $Revision: 1.1 $ 035 */ 036 public class ProcessorEndpoint extends DefaultEndpoint<Exchange> { 037 private final Processor processor; 038 private final LoadBalancer loadBalancer; 039 040 protected ProcessorEndpoint(String endpointUri, Component component, Processor processor, LoadBalancer loadBalancer) { 041 super(endpointUri, component); 042 this.processor = processor; 043 this.loadBalancer = loadBalancer; 044 } 045 046 public Exchange createExchange() { 047 return new DefaultExchange(getContext()); 048 } 049 050 public Producer<Exchange> createProducer() throws Exception { 051 return new DefaultProducer<Exchange>(this) { 052 public void process(Exchange exchange) throws Exception { 053 onExchange(exchange); 054 } 055 }; 056 } 057 058 public Consumer<Exchange> createConsumer(Processor processor) throws Exception { 059 return new ProcessorEndpointConsumer(this, processor); 060 } 061 062 public Processor getProcessor() { 063 return processor; 064 } 065 066 public LoadBalancer getLoadBalancer() { 067 return loadBalancer; 068 } 069 070 protected void onExchange(Exchange exchange) throws Exception { 071 processor.process(exchange); 072 073 // now lets output to the load balancer 074 loadBalancer.process(exchange); 075 } 076 077 public boolean isSingleton() { 078 return true; 079 } 080 }