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.CamelExchangeException; 022 import org.apache.camel.Exchange; 023 import org.apache.camel.impl.DefaultProducer; 024 import org.apache.camel.util.AsyncProcessorConverterHelper; 025 import org.apache.camel.util.AsyncProcessorHelper; 026 import org.slf4j.Logger; 027 import org.slf4j.LoggerFactory; 028 029 /** 030 * The direct producer. 031 * 032 * @version 033 */ 034 public class DirectProducer extends DefaultProducer implements AsyncProcessor { 035 private static final transient Logger LOG = LoggerFactory.getLogger(DirectProducer.class); 036 private DirectEndpoint endpoint; 037 038 public DirectProducer(DirectEndpoint endpoint) { 039 super(endpoint); 040 this.endpoint = endpoint; 041 } 042 043 public void process(Exchange exchange) throws Exception { 044 if (endpoint.getConsumer() == null) { 045 LOG.warn("No consumers available on endpoint: " + endpoint + " to process: " + exchange); 046 throw new CamelExchangeException("No consumers available on endpoint: " + endpoint, exchange); 047 } else { 048 endpoint.getConsumer().getProcessor().process(exchange); 049 } 050 } 051 052 public boolean process(Exchange exchange, AsyncCallback callback) { 053 if (endpoint.getConsumer() == null) { 054 LOG.warn("No consumers available on endpoint: " + endpoint + " to process: " + exchange); 055 // indicate its done synchronously 056 exchange.setException(new CamelExchangeException("No consumers available on endpoint: " + endpoint, exchange)); 057 callback.done(true); 058 return true; 059 } else { 060 AsyncProcessor processor = AsyncProcessorConverterHelper.convert(endpoint.getConsumer().getProcessor()); 061 return AsyncProcessorHelper.process(processor, exchange, callback); 062 } 063 } 064 065 }