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.direct;
018
019 import org.apache.camel.AsyncCallback;
020 import org.apache.camel.AsyncProcessor;
021 import org.apache.camel.Exchange;
022 import org.apache.camel.impl.DefaultConsumer;
023 import org.apache.camel.impl.DefaultProducer;
024 import org.apache.camel.impl.converter.AsyncProcessorTypeConverter;
025 import org.apache.commons.logging.Log;
026 import org.apache.commons.logging.LogFactory;
027
028 /**
029 * The direct producer.
030 *
031 * @version $Revision: 752464 $
032 */
033 public class DirectProducer extends DefaultProducer implements AsyncProcessor {
034 private static final transient Log LOG = LogFactory.getLog(DirectProducer.class);
035 private DirectEndpoint endpoint;
036
037 public DirectProducer(DirectEndpoint endpoint) {
038 super(endpoint);
039 this.endpoint = endpoint;
040 }
041
042 public void process(Exchange exchange) throws Exception {
043 if (endpoint.getConsumers().isEmpty()) {
044 LOG.warn("No consumers available on endpoint: " + endpoint + " to process: " + exchange);
045 } else {
046 for (DefaultConsumer consumer : endpoint.getConsumers()) {
047 consumer.getProcessor().process(exchange);
048 }
049 }
050 }
051
052 public boolean process(Exchange exchange, AsyncCallback callback) {
053 int size = endpoint.getConsumers().size();
054 if (size == 0) {
055 LOG.warn("No consumers available on endpoint: " + endpoint + " to process " + exchange);
056 } else if (size == 1) {
057 DefaultConsumer consumer = endpoint.getConsumers().get(0);
058 AsyncProcessor processor = AsyncProcessorTypeConverter.convert(consumer.getProcessor());
059 return processor.process(exchange, callback);
060 } else if (size > 1) {
061 // Too hard to do multiple async.. do it sync
062 try {
063 for (DefaultConsumer consumer : endpoint.getConsumers()) {
064 consumer.getProcessor().process(exchange);
065 }
066 } catch (Exception e) {
067 exchange.setException(e);
068 }
069 }
070 callback.done(true);
071 return true;
072 }
073 }