| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.camel.component.jms; |
| |
| import javax.jms.Message; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.impl.PollingConsumerSupport; |
| import org.apache.camel.util.ObjectHelper; |
| import org.springframework.jms.core.JmsOperations; |
| import org.springframework.jms.core.JmsTemplate; |
| |
| /** |
| * @version |
| */ |
| public class JmsPollingConsumer extends PollingConsumerSupport { |
| private JmsOperations template; |
| private JmsEndpoint jmsEndpoint; |
| |
| public JmsPollingConsumer(JmsEndpoint endpoint, JmsOperations template) { |
| super(endpoint); |
| this.jmsEndpoint = endpoint; |
| this.template = template; |
| } |
| |
| @Override |
| public JmsEndpoint getEndpoint() { |
| return (JmsEndpoint)super.getEndpoint(); |
| } |
| |
| public Exchange receiveNoWait() { |
| return receive(1); |
| } |
| |
| public Exchange receive() { |
| return receive(0L); |
| } |
| |
| public Exchange receive(long timeout) { |
| setReceiveTimeout(timeout); |
| Message message; |
| // using the selector |
| if (ObjectHelper.isNotEmpty(jmsEndpoint.getSelector())) { |
| message = template.receiveSelected(jmsEndpoint.getSelector()); |
| } else { |
| message = template.receive(); |
| } |
| if (message != null) { |
| return getEndpoint().createExchange(message); |
| } |
| return null; |
| } |
| |
| protected void doStart() throws Exception { |
| } |
| |
| protected void doStop() throws Exception { |
| } |
| |
| protected void setReceiveTimeout(long timeout) { |
| if (template instanceof JmsTemplate) { |
| JmsTemplate jmsTemplate = (JmsTemplate)template; |
| jmsTemplate.setReceiveTimeout(timeout); |
| } else { |
| throw new IllegalArgumentException("Cannot set the receiveTimeout property on unknown JmsOperations type: " + template.getClass().getName()); |
| } |
| } |
| } |