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.processor; 018 019 import org.apache.camel.Endpoint; 020 import org.apache.camel.Exchange; 021 import org.apache.camel.Processor; 022 import org.apache.camel.Producer; 023 import org.apache.camel.Service; 024 import org.apache.camel.impl.ServiceSupport; 025 import org.apache.commons.logging.Log; 026 import org.apache.commons.logging.LogFactory; 027 028 /** 029 * @version $Revision: 563607 $ 030 */ 031 public class SendProcessor extends ServiceSupport implements Processor, Service { 032 private static final transient Log LOG = LogFactory.getLog(SendProcessor.class); 033 private Endpoint destination; 034 private Producer producer; 035 036 public SendProcessor(Endpoint destination) { 037 if (destination == null) { 038 throw new IllegalArgumentException("Endpoint cannot be null!"); 039 } 040 this.destination = destination; 041 } 042 043 protected void doStop() throws Exception { 044 if (producer != null) { 045 try { 046 producer.stop(); 047 } finally { 048 producer = null; 049 } 050 } 051 } 052 053 protected void doStart() throws Exception { 054 this.producer = destination.createProducer(); 055 } 056 057 public void process(Exchange exchange) throws Exception { 058 if (producer == null) { 059 if (isStopped()) { 060 LOG.warn("Ignoring exchange sent after processor is stopped: " + exchange); 061 } else { 062 throw new IllegalStateException("No producer, this processor has not been started!"); 063 } 064 } else { 065 producer.process(exchange); 066 } 067 } 068 069 public Endpoint getDestination() { 070 return destination; 071 } 072 073 @Override 074 public String toString() { 075 return "sendTo(" + destination + ")"; 076 } 077 }