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.Consumer; 020 import org.apache.camel.Endpoint; 021 import org.apache.camel.Exchange; 022 import org.apache.camel.Processor; 023 import org.apache.camel.spi.ExceptionHandler; 024 import org.apache.camel.util.ServiceHelper; 025 026 /** 027 * @version $Revision: 563607 $ 028 */ 029 public class DefaultConsumer<E extends Exchange> extends ServiceSupport implements Consumer<E> { 030 private Endpoint<E> endpoint; 031 private Processor processor; 032 private ExceptionHandler exceptionHandler; 033 034 public DefaultConsumer(Endpoint<E> endpoint, Processor processor) { 035 this.endpoint = endpoint; 036 this.processor = processor; 037 } 038 039 @Override 040 public String toString() { 041 return "Consumer on " + endpoint; 042 } 043 044 public Endpoint<E> getEndpoint() { 045 return endpoint; 046 } 047 048 public Processor getProcessor() { 049 return processor; 050 } 051 052 public ExceptionHandler getExceptionHandler() { 053 if (exceptionHandler == null) { 054 exceptionHandler = new LoggingExceptionHandler(getClass()); 055 } 056 return exceptionHandler; 057 } 058 059 public void setExceptionHandler(ExceptionHandler exceptionHandler) { 060 this.exceptionHandler = exceptionHandler; 061 } 062 063 protected void doStop() throws Exception { 064 ServiceHelper.stopServices(processor); 065 } 066 067 protected void doStart() throws Exception { 068 ServiceHelper.startServices(processor); 069 } 070 071 /** 072 * Handles the given exception using the {@link #getExceptionHandler()} 073 * 074 * @param t the exception to handle 075 */ 076 protected void handleException(Throwable t) { 077 getExceptionHandler().handleException(t); 078 } 079 }