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.Exchange;
021    import org.apache.camel.impl.DefaultAsyncProducer;
022    
023    /**
024     * The direct producer.
025     *
026     * @version 
027     */
028    public class DirectProducer extends DefaultAsyncProducer {
029        private final DirectEndpoint endpoint;
030    
031        public DirectProducer(DirectEndpoint endpoint) {
032            super(endpoint);
033            this.endpoint = endpoint;
034        }
035    
036        public void process(Exchange exchange) throws Exception {
037            if (endpoint.getConsumer() == null) {
038                throw new DirectConsumerNotAvailableException("No consumers available on endpoint: " + endpoint, exchange);
039            } else {
040                endpoint.getConsumer().getProcessor().process(exchange);
041            }
042        }
043    
044        public boolean process(Exchange exchange, AsyncCallback callback) {
045            if (endpoint.getConsumer() == null) {
046                // indicate its done synchronously
047                exchange.setException(new DirectConsumerNotAvailableException("No consumers available on endpoint: " + endpoint, exchange));
048                callback.done(true);
049                return true;
050            } else {
051                return endpoint.getConsumer().getAsyncProcessor().process(exchange, callback);
052            }
053        }
054    
055    }