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.impl; 019 020 import org.apache.camel.Endpoint; 021 import org.apache.camel.Exchange; 022 import org.apache.camel.PollingConsumer; 023 import org.apache.camel.spi.ExceptionHandler; 024 025 /** 026 * A useful base class for implementations of {@link PollingConsumer} 027 * 028 * @version $Revision: 1.1 $ 029 */ 030 public abstract class PollingConsumerSupport<E extends Exchange> extends ServiceSupport implements PollingConsumer<E> { 031 private final Endpoint<E> endpoint; 032 private ExceptionHandler exceptionHandler; 033 034 public PollingConsumerSupport(Endpoint<E> endpoint) { 035 this.endpoint = endpoint; 036 } 037 038 @Override 039 public String toString() { 040 return "PullConsumer on " + endpoint; 041 } 042 043 public Endpoint<E> getEndpoint() { 044 return endpoint; 045 } 046 047 public ExceptionHandler getExceptionHandler() { 048 if (exceptionHandler == null) { 049 exceptionHandler = new LoggingExceptionHandler(getClass()); 050 } 051 return exceptionHandler; 052 } 053 054 public void setExceptionHandler(ExceptionHandler exceptionHandler) { 055 this.exceptionHandler = exceptionHandler; 056 } 057 058 /** 059 * Handles the given exception using the {@link #getExceptionHandler()} 060 * 061 * @param t the exception to handle 062 */ 063 protected void handleException(Throwable t) { 064 getExceptionHandler().handleException(t); 065 } 066 }