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.Exchange;
021 import org.apache.camel.PollingConsumer;
022 import org.apache.camel.spi.ExceptionHandler;
023
024 /**
025 * A useful base class for implementations of {@link PollingConsumer}
026 *
027 * @version $Revision: 630591 $
028 */
029 public abstract class PollingConsumerSupport<E extends Exchange> extends ServiceSupport implements
030 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 }