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.impl; 018 019 import org.apache.camel.CamelContext; 020 import org.apache.camel.Component; 021 import org.apache.camel.Exchange; 022 import org.apache.camel.PollingConsumer; 023 import org.apache.camel.Processor; 024 import org.apache.camel.Producer; 025 026 /** 027 * An endpoint which allows exchanges to be sent into it which just invokes a 028 * given {@link Processor}. This component does not support the use of 029 * consumers. 030 * 031 * @version $Revision: 41278 $ 032 */ 033 public class ProcessorEndpoint extends DefaultPollingEndpoint<Exchange> { 034 private final Processor processor; 035 036 public ProcessorEndpoint(String endpointUri, CamelContext context, Processor processor) { 037 super(endpointUri, context); 038 this.processor = processor; 039 } 040 041 public ProcessorEndpoint(String endpointUri, Component component, Processor processor) { 042 super(endpointUri, component); 043 this.processor = processor; 044 } 045 046 public ProcessorEndpoint(String endpointUri, Processor processor) { 047 super(endpointUri); 048 this.processor = processor; 049 } 050 051 public Producer<Exchange> createProducer() throws Exception { 052 return new DefaultProducer<Exchange>(this) { 053 public void process(Exchange exchange) throws Exception { 054 onExchange(exchange); 055 } 056 }; 057 } 058 059 @Override 060 public PollingConsumer<Exchange> createPollingConsumer() throws Exception { 061 return new ProcessorPollingConsumer(this, getProcessor()); 062 } 063 064 public Processor getProcessor() { 065 if (processor == null) { 066 return new Processor() { 067 public void process(Exchange exchange) throws Exception { 068 onExchange(exchange); 069 } 070 }; 071 } 072 return processor; 073 } 074 075 protected void onExchange(Exchange exchange) throws Exception { 076 processor.process(exchange); 077 } 078 079 public boolean isSingleton() { 080 return true; 081 } 082 }