org.apache.camel.impl.ProcessorPollingConsumer Maven / Gradle / Ivy
/**
* 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();
}
}