| /** |
| * 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 java.util.concurrent.RejectedExecutionException; |
| |
| import org.apache.camel.Endpoint; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Processor; |
| import org.apache.camel.RuntimeExchangeException; |
| import org.apache.camel.util.ServiceHelper; |
| |
| /** |
| * A simple implementation of {@link org.apache.camel.PollingConsumer} which just uses |
| * a {@link Processor}. This implementation does not support timeout based |
| * receive methods such as {@link #receive(long)} |
| * |
| * @version |
| */ |
| public class ProcessorPollingConsumer extends PollingConsumerSupport { |
| private final Processor processor; |
| |
| public ProcessorPollingConsumer(Endpoint endpoint, Processor processor) { |
| super(endpoint); |
| this.processor = processor; |
| } |
| |
| protected void doStart() throws Exception { |
| ServiceHelper.startService(processor); |
| } |
| |
| protected void doStop() throws Exception { |
| ServiceHelper.stopService(processor); |
| } |
| |
| public Exchange receive() { |
| // must be started |
| if (!isRunAllowed() || !isStarted()) { |
| throw new RejectedExecutionException(this + " is not started, but in state: " + getStatus().name()); |
| } |
| |
| Exchange exchange = getEndpoint().createExchange(); |
| try { |
| processor.process(exchange); |
| } catch (Exception e) { |
| throw new RuntimeExchangeException("Error while processing exchange", exchange, e); |
| } |
| return exchange; |
| } |
| |
| public Exchange receiveNoWait() { |
| return receive(); |
| } |
| |
| public Exchange receive(long timeout) { |
| return receive(); |
| } |
| } |