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.Endpoint; 020 import org.apache.camel.PollingConsumer; 021 import org.apache.camel.spi.ExceptionHandler; 022 import org.apache.camel.support.ServiceSupport; 023 import org.slf4j.Logger; 024 import org.slf4j.LoggerFactory; 025 026 /** 027 * A useful base class for implementations of {@link PollingConsumer} 028 * 029 * @version 030 */ 031 public abstract class PollingConsumerSupport extends ServiceSupport implements PollingConsumer { 032 protected final transient Logger log = LoggerFactory.getLogger(getClass()); 033 private final Endpoint endpoint; 034 private ExceptionHandler exceptionHandler; 035 036 public PollingConsumerSupport(Endpoint endpoint) { 037 this.endpoint = endpoint; 038 } 039 040 @Override 041 public String toString() { 042 return "PollingConsumer on " + endpoint; 043 } 044 045 public Endpoint getEndpoint() { 046 return endpoint; 047 } 048 049 public ExceptionHandler getExceptionHandler() { 050 if (exceptionHandler == null) { 051 exceptionHandler = new LoggingExceptionHandler(getClass()); 052 } 053 return exceptionHandler; 054 } 055 056 public void setExceptionHandler(ExceptionHandler exceptionHandler) { 057 this.exceptionHandler = exceptionHandler; 058 } 059 060 /** 061 * Handles the given exception using the {@link #getExceptionHandler()} 062 * 063 * @param t the exception to handle 064 */ 065 protected void handleException(Throwable t) { 066 getExceptionHandler().handleException(t); 067 } 068 }