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package org.mule.providers.jms.transformers; |
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import org.mule.config.MuleProperties; |
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import org.mule.impl.RequestContext; |
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import org.mule.providers.jms.JmsConnector; |
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import org.mule.providers.jms.JmsConstants; |
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import org.mule.providers.jms.JmsMessageUtils; |
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import org.mule.transformers.AbstractTransformer; |
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import org.mule.umo.UMOEventContext; |
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import org.mule.umo.UMOMessage; |
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import org.mule.umo.endpoint.UMOImmutableEndpoint; |
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import org.mule.umo.provider.UMOConnector; |
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import org.mule.umo.transformer.TransformerException; |
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import org.mule.util.ClassUtils; |
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import java.util.Iterator; |
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import javax.jms.Destination; |
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import javax.jms.JMSException; |
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import javax.jms.Message; |
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import javax.jms.Session; |
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public abstract class AbstractJmsTransformer extends AbstractTransformer |
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{ |
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public AbstractJmsTransformer() |
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{ |
44 | 0 | super(); |
45 | 0 | } |
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protected Message transformToMessage(Object src) throws TransformerException |
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{ |
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try |
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{ |
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Message result; |
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|
53 | 0 | if (src instanceof Message) |
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{ |
55 | 0 | result = (Message)src; |
56 | 0 | result.clearProperties(); |
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} |
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else |
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{ |
60 | 0 | result = JmsMessageUtils.toMessage(src, this.getSession()); |
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} |
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|
64 | 0 | UMOEventContext ctx = RequestContext.getEventContext(); |
65 | 0 | if (ctx == null) |
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{ |
67 | 0 | logger.warn("There is no current event context"); |
68 | 0 | return result; |
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} |
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|
71 | 0 | this.setJmsProperties(ctx.getMessage(), result); |
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|
73 | 0 | return result; |
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} |
75 | 0 | catch (TransformerException tex) |
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{ |
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|
78 | 0 | throw tex; |
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} |
80 | 0 | catch (Exception e) |
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{ |
82 | 0 | throw new TransformerException(this, e); |
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} |
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} |
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protected Object transformFromMessage(Message source) throws TransformerException |
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{ |
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try |
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{ |
90 | 0 | if (logger.isDebugEnabled()) |
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{ |
92 | 0 | logger.debug("Message type received is: " + |
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ClassUtils.getSimpleName(source.getClass())); |
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} |
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|
98 | 0 | String jmsSpec = JmsConstants.JMS_SPECIFICATION_102B; |
99 | 0 | UMOImmutableEndpoint endpoint = this.getEndpoint(); |
100 | 0 | if (endpoint != null) |
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{ |
102 | 0 | UMOConnector connector = endpoint.getConnector(); |
103 | 0 | if (connector instanceof JmsConnector) |
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{ |
105 | 0 | jmsSpec = ((JmsConnector)connector).getSpecification(); |
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} |
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} |
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|
109 | 0 | return JmsMessageUtils.toObject(source, jmsSpec); |
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} |
111 | 0 | catch (Exception e) |
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{ |
113 | 0 | throw new TransformerException(this, e); |
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} |
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} |
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protected void setJmsProperties(UMOMessage umoMessage, Message msg) throws JMSException |
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{ |
119 | 0 | for (Iterator iterator = umoMessage.getPropertyNames().iterator(); iterator.hasNext();) |
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{ |
121 | 0 | String key = iterator.next().toString(); |
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|
123 | 0 | if (!JmsConstants.JMS_PROPERTY_NAMES.contains(key)) |
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{ |
125 | 0 | Object value = umoMessage.getProperty(key); |
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|
127 | 0 | if (MuleProperties.MULE_CORRELATION_ID_PROPERTY.equals(key)) |
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{ |
129 | 0 | msg.setJMSCorrelationID(umoMessage.getCorrelationId()); |
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} |
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|
134 | 0 | if (!(MuleProperties.MULE_REPLY_TO_PROPERTY.equals(key) && value instanceof Destination)) |
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{ |
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|
137 | 0 | key = JmsMessageUtils.encodeHeader(key); |
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try |
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{ |
141 | 0 | msg.setObjectProperty(key, value); |
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} |
143 | 0 | catch (JMSException e) |
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{ |
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|
148 | 0 | if (logger.isDebugEnabled()) |
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{ |
150 | 0 | logger.debug("Unable to set property '" + key + "' of type " |
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+ ClassUtils.getSimpleName(value.getClass()) |
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+ "': " + e.getMessage()); |
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} |
154 | 0 | } |
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} |
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} |
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} |
158 | 0 | } |
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protected Session getSession() throws TransformerException, JMSException |
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{ |
162 | 0 | if (endpoint != null) |
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{ |
164 | 0 | return ((JmsConnector)endpoint.getConnector()).getSession(endpoint); |
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} |
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else |
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{ |
168 | 0 | throw new TransformerException(this, new IllegalStateException( |
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"This transformer needs a valid endpoint")); |
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} |
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} |
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|
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} |