| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.camel.impl; |
| |
| import org.apache.camel.Consumer; |
| import org.apache.camel.Endpoint; |
| import org.apache.camel.Processor; |
| import org.apache.camel.spi.ExceptionHandler; |
| import org.apache.camel.util.ServiceHelper; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| /** |
| * A default consumer useful for implementation inheritance. |
| * |
| * @version $Revision$ |
| */ |
| public class DefaultConsumer extends ServiceSupport implements Consumer { |
| protected final transient Log log = LogFactory.getLog(getClass()); |
| private final Endpoint endpoint; |
| private final Processor processor; |
| private ExceptionHandler exceptionHandler; |
| |
| public DefaultConsumer(Endpoint endpoint, Processor processor) { |
| this.endpoint = endpoint; |
| this.processor = processor; |
| } |
| |
| @Override |
| public String toString() { |
| return "Consumer[" + endpoint.getEndpointUri() + "]"; |
| } |
| |
| public Endpoint getEndpoint() { |
| return endpoint; |
| } |
| |
| public Processor getProcessor() { |
| return processor; |
| } |
| |
| public ExceptionHandler getExceptionHandler() { |
| if (exceptionHandler == null) { |
| exceptionHandler = new LoggingExceptionHandler(getClass()); |
| } |
| return exceptionHandler; |
| } |
| |
| public void setExceptionHandler(ExceptionHandler exceptionHandler) { |
| this.exceptionHandler = exceptionHandler; |
| } |
| |
| protected void doStop() throws Exception { |
| if (log.isDebugEnabled()) { |
| log.debug("Stopping consumer: " + this); |
| } |
| ServiceHelper.stopServices(processor); |
| } |
| |
| protected void doStart() throws Exception { |
| if (log.isDebugEnabled()) { |
| log.debug("Starting consumer: " + this); |
| } |
| ServiceHelper.startServices(processor); |
| } |
| |
| /** |
| * Handles the given exception using the {@link #getExceptionHandler()} |
| * |
| * @param t the exception to handle |
| */ |
| protected void handleException(Throwable t) { |
| Throwable newt = (t == null) ? new IllegalArgumentException("Handling [null] exception") : t; |
| getExceptionHandler().handleException(newt); |
| } |
| } |