setJMSMessageID not working in IBM MQ

[gcorro]

Hi,


I'm trying to set the message id of JMS mesages directly as shown below:


public void sendMessage( String replyTo,
final String processedMessage,
final String messageId) {
jmsTemplate.send(replyTo, new MessageCreator() {
public Message createMessage(Session session) throws JMSException {
TextMessage message = session.createTextMessage();
message.setText(processedMessage);
message.setJMSMessageID(messageId);
message.setJMSCorrelationID(messageId);
return message;
}

}
);
}


The snipppet above works properly for the correlation id, but not for message ID, I mean, the message id is not being set as expected. Also, I should mention that I'm working with IBM MQ.

Please assist. Thanks.

[TOPPER_HARLEY]

Hi
From looking at JMS javadoc it doesnt look like that property is settable in code by the sender:

setJMSMessageID

public void setJMSMessageID(String id)
throws JMSException

Sets the message ID.

JMS providers set this field when a message is sent. This method can be used to change the value for a message that has been received.

Hence when you send the message I would guess that provider (IBM MQ) is setting the ID to its own generated value as specified in javadocs.

Hope this helps
/Tom

[Cyrille Le Clerc]

Hello,

JMSMessageID is read only in Websphere MQ JMS implementation.

Extract from Websphere MQ Infocenter : Mapping JMS header fields at send() or publish()

JMSMessageID from MQMD MessageID
All messages sent from JMS have unique message identifiers assigned by WebSphere® MQ. The value assigned is returned in the MQMD messageId field after the MQPUT call, and is passed back to the application in the JMSMessageID field. The WebSphere MQ messageId is a 24-byte binary value, whereas the JMSMessageID is a string. The JMSMessageID is composed of the binary messageId value converted to a sequence of 48 hexadecimal characters, prefixed with the characters ID:. JMS provides a hint that can be set to disable the production of message identifiers. This hint is ignored, and a unique identifier is assigned in all cases. Any value that is set into the JMSMessageId field before a send() is overwritten.

Other information about JMS to Websphere MQ headers mapping extracted from Websphere MQ Infocenter : Mapping JMS fields onto WebSphere MQ fields (outgoing messages)

Outgoing message field mapping

| JMS header field | MQMD field used       | Header | Set by         |
| name             | used for transmission |        |                |
|                  |                       |        |                |
| JMSDestination   |                       | MQRFH2 | Send Method    |
| JMSDeliveryMode  | Persistence           | MQRFH2 | Send Method    |
| JMSExpiration    | Expiry                | MQRFH2 | Send Method    |
| JMSPriority      | Priority              | MQRFH2 | Send Method    |
| JMSMessageID     | MessageID             |        | Send Method    |
| JMSTimestamp     | PutDate/PutTime       |        | Send Method    |
| JMSCorrelationID | CorrelId              | MQRFH2 | Message Object |
| JMSReplyTo       | ReplyToQ/ReplyToQMgr  | MQRFH2 | Message Object |
| JMSType          |                       | MQRFH2 | Message Object |
| JMSRedelivered   |                       |        | Receive-only   |

Outgoing message JMS property mapping

| JMS property name | MQMD field used  | Header | Set by         |
|                   | for transmission |        |                |
|                   |                  |        |                |
| JMSXUserID        | UserIdentifier   |        | Send Method    |
| JMSXAppID         | PutApplName      |        | Send Method    |
| JMSXDeliveryCount |                  |        | Receive-only   |
| JMSXGroupID       | GroupId          | MQRFH2 | Message Object |
| JMSXGroupSeq      | MsgSeqNumber     | MQRFH2 | Message Object |

Hope this helps,

Cyrille