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.component.hazelcast.seda;
018    
019    import java.io.Serializable;
020    import java.util.concurrent.BlockingQueue;
021    
022    import org.apache.camel.AsyncCallback;
023    import org.apache.camel.Exchange;
024    import org.apache.camel.Producer;
025    import org.apache.camel.component.hazelcast.HazelcastComponentHelper;
026    import org.apache.camel.impl.DefaultAsyncProducer;
027    import org.apache.camel.impl.DefaultExchangeHolder;
028    
029    /**
030     * Implementation of Hazelcast SEDA {@link Producer} component. Just appends exchange body into a Hazelcast {@link BlockingQueue}.
031     */
032    public class HazelcastSedaProducer extends DefaultAsyncProducer {
033    
034        private final transient BlockingQueue queue;
035    
036        public HazelcastSedaProducer(final HazelcastSedaEndpoint endpoint, final BlockingQueue hzlq) {
037            super(endpoint);
038            this.queue = hzlq;
039        }
040    
041        public boolean process(final Exchange exchange, final AsyncCallback callback) {
042            checkAndStore(exchange);
043            callback.done(true);
044            return true;
045        }
046    
047        @SuppressWarnings("unchecked")
048        private void checkAndStore(final Exchange exchange) {
049            Object obj;
050            Object body = exchange.getIn().getBody();
051    
052            final HazelcastSedaEndpoint endpoint = (HazelcastSedaEndpoint) this.getEndpoint();
053            final HazelcastSedaConfiguration configuration = endpoint.getConfiguration();
054    
055            if (configuration.isTransferExchange()) {
056                obj = DefaultExchangeHolder.marshal(exchange);
057            } else {
058                // in case body is not serializable convert to byte array
059                if (!(body instanceof Serializable)) {
060                    obj = exchange.getIn().getBody(byte[].class);
061                } else {
062                    obj = body;
063                }
064            }
065    
066            queue.add(obj);
067    
068            // finally copy headers
069            HazelcastComponentHelper.copyHeaders(exchange);
070        }
071    
072    }