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 }