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 */
017package org.apache.camel.processor;
018
019import org.apache.camel.AsyncCallback;
020import org.apache.camel.AsyncProcessor;
021import org.apache.camel.Exchange;
022import org.apache.camel.ExchangePattern;
023import org.apache.camel.spi.IdAware;
024import org.apache.camel.support.ServiceSupport;
025import org.apache.camel.util.AsyncProcessorHelper;
026
027/**
028 * Processor to set {@link org.apache.camel.ExchangePattern} on the {@link org.apache.camel.Exchange}.
029 */
030public class ExchangePatternProcessor extends ServiceSupport implements AsyncProcessor, IdAware {
031    private String id;
032    private ExchangePattern exchangePattern = ExchangePattern.InOnly;
033    
034    public ExchangePatternProcessor() {
035    }
036    
037    public ExchangePatternProcessor(ExchangePattern ep) {
038        setExchangePattern(ep);
039    }
040    
041    public void setExchangePattern(ExchangePattern ep) {
042        exchangePattern = ep;
043    }
044
045    public String getId() {
046        return id;
047    }
048
049    public void setId(String id) {
050        this.id = id;
051    }
052
053    public ExchangePattern getExchangePattern() {
054        return exchangePattern;
055    }
056
057    public void process(Exchange exchange) throws Exception {
058        AsyncProcessorHelper.process(this, exchange);
059    }
060
061    public boolean process(Exchange exchange, AsyncCallback callback) {
062        exchange.setPattern(exchangePattern);
063        callback.done(true);
064        return true;
065    }
066
067    @Override
068    public String toString() {
069        return "SetExchangePattern[" + exchangePattern + "]";
070    }
071
072    @Override
073    protected void doStart() throws Exception {
074        // noop
075    }
076
077    @Override
078    protected void doStop() throws Exception {
079        // noop
080    }
081}