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package org.apache.camel.component.jms; |
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import org.apache.camel.impl.PollingConsumerSupport; |
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import org.springframework.jms.core.JmsOperations; |
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import org.springframework.jms.core.JmsTemplate; |
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import org.springframework.jms.core.JmsTemplate102; |
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import javax.jms.Message; |
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public class JmsPollingConsumer extends PollingConsumerSupport<JmsExchange> { |
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private JmsOperations template; |
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public JmsPollingConsumer(JmsEndpoint endpoint, JmsOperations template) { |
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super(endpoint); |
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this.template = template; |
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} |
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@Override |
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public JmsEndpoint getEndpoint() { |
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return (JmsEndpoint) super.getEndpoint(); |
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} |
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public JmsExchange receiveNoWait() { |
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return receive(0); |
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} |
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public JmsExchange receive() { |
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return receive(-1); |
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} |
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public JmsExchange receive(long timeout) { |
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setReceiveTimeout(timeout); |
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Message message = template.receive(); |
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if (message != null) { |
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return getEndpoint().createExchange(message); |
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} |
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return null; |
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} |
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protected void doStart() throws Exception { |
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} |
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protected void doStop() throws Exception { |
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} |
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protected void setReceiveTimeout(long timeout) { |
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if (template instanceof JmsTemplate) { |
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JmsTemplate jmsTemplate = (JmsTemplate) template; |
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jmsTemplate.setReceiveTimeout(timeout); |
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} |
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else if (template instanceof JmsTemplate102) { |
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JmsTemplate102 jmsTemplate102 = (JmsTemplate102) template; |
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jmsTemplate102.setReceiveTimeout(timeout); |
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} |
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else { |
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throw new IllegalArgumentException("Cannot set the receiveTimeout property on unknown JmsOperations type: " + template); |
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} |
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} |
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} |