runtime/org.argeo.slc.support.activemq/src/main/java/org/argeo/slc/jms/MarshallerMessageConverter.java

   1 package org.argeo.slc.jms;
   2
   3 import javax.jms.JMSException;
   4 import javax.jms.Message;
   5 import javax.jms.Session;
   6 import javax.jms.TextMessage;
   7
   8 import org.argeo.slc.SlcException;
   9 import org.springframework.jms.support.converter.MessageConversionException;
  10 import org.springframework.jms.support.converter.MessageConverter;
  11 import org.springframework.oxm.Marshaller;
  12 import org.springframework.oxm.Unmarshaller;
  13 import org.springframework.xml.transform.StringResult;
  14 import org.springframework.xml.transform.StringSource;
  15
  16 public class MarshallerMessageConverter implements MessageConverter {
  17         private Marshaller marshaller;
  18         private Unmarshaller unmarshaller;
  19
  20         public Object fromMessage(Message message) throws JMSException,
  21                         MessageConversionException {
  22                 if (message instanceof TextMessage) {
  23                         String text = ((TextMessage) message).getText();
  24                         try {
  25                                 return unmarshaller.unmarshal(new StringSource(text));
  26                         } catch (Exception e) {
  27                                 throw new SlcException("Could not unmarshall " + text, e);
  28                         }
  29                 } else {
  30                         throw new SlcException("Only JMS TextMessage are supported.");
  31                 }
  32         }
  33
  34         public Message toMessage(Object object, Session session)
  35                         throws JMSException, MessageConversionException {
  36                 StringResult result = new StringResult();
  37                 try {
  38                         marshaller.marshal(object, result);
  39                 } catch (Exception e) {
  40                         throw new SlcException("Could not marshall " + object, e);
  41                 }
  42                 TextMessage msg = session.createTextMessage();
  43                 msg.setText(result.toString());
  44                 return msg;
  45         }
  46
  47         public void setMarshaller(Marshaller marshaller) {
  48                 this.marshaller = marshaller;
  49         }
  50
  51         public void setUnmarshaller(Unmarshaller unmarshaller) {
  52                 this.unmarshaller = unmarshaller;
  53         }
  54
  55 }