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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » Updates to MQRFH2 Header from ComputeNode are ignored

Updates to MQRFH2 Header from ComputeNode are ignored

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IQ Solutions

Posted: Fri Mar 20, 2009 6:51 am Post subject: Updates to MQRFH2 Header from ComputeNode are ignored

Newbie

Joined: 18 Mar 2009
Posts: 6

I have the following ESQL in a Compute Node to add the MQRFH2 Header, and set the properties so that a JMS client will interpret the message as JMSText.

Code:

CREATE PROCEDURE AddMQRFH2Header()
BEGIN

   IF NOT EXISTS(OutputRoot.MQRFH2[]) THEN
      CREATE NEXTSIBLING OF OutputRoot.MQMD DOMAIN 'MQRFH2';
      SET OutputRoot.MQMD.Format = MQFMT_RF_HEADER_2;
   END IF;

   SET OutputRoot.MQRFH2.(MQRFH2.Field)StrucId = MQRFH_STRUC_ID;
   SET OutputRoot.MQRFH2.(MQRFH2.Field)Version = MQRFH_VERSION_2;
   SET OutputRoot.MQRFH2.(MQRFH2.Field)Struclength = MQRFH_STRUC_LENGTH_FIXED_2;
   SET OutputRoot.MQRFH2.(MQRFH2.Field)Encoding = MQENC_NATIVE;
   SET OutputRoot.MQRFH2.(MQRFH2.Field)CodedCharSetId = MQCCSI_INHERIT;
   SET OutputRoot.MQRFH2.(MQRFH2.Field)Format = MQFMT_STRING ;
   SET OutputRoot.MQRFH2.(MQRFH2.Field)Flags = MQRFH_NONE;
   SET OutputRoot.MQRFH2.(MQRFH2.Field)NameValueCCSID = 1208;
   SET OutputRoot.MQRFH2.mcd.Msd = 'jms_text';
   SET OutputRoot.MQRFH2.mcd.Set = '';
   SET OutputRoot.MQRFH2.mcd.Type = '';
   SET OutputRoot.MQRFH2.mcd.Fmt = '';


END;

When I inspect the Message tree after exitting the Compute node, the MQRFH2 header has been added, but some of my SETs have been ignored.

Code:

MQRFH2
StrucId:CHARACTER:RFH
Version:INTEGER:2
Struclength:INTEGER:36
Encoding:INTEGER:546
CodedCharSetId:INTEGER:-2
Format:CHARACTER:MQSTR
Flags:INTEGER:0
NameValueCCSID:INTEGER:1208
mcd
Msd
CHARACTER:xmlnsc
Set
CHARACTER:PIMR Service Message Set
Type
CHARACTER:{http://www.iqsolutions.com/PIMR-Service}:PIMRServiceCall
Fmt
CHARACTER:XML1

What gives?

HOMETOWN47

Posted: Fri Mar 20, 2009 7:14 am Post subject:

Apprentice

Joined: 25 Mar 2003
Posts: 34

http://publib.boulder.ibm.com/infocenter/wmbhelp/v6r1m0/topic/com.ibm.etools.mft.doc/aq06940_.htm?

Has following section:-

If an MQRFH2 header is present in an output message tree, an <mcd> folder is always added and populated. This is so that the MQRFH2 header accurately reflects the message template of the message. The <mcd> folder must not be removed from the MQRFH2 folder. If it is deleted - for example, by a Compute node - it is automatically added and populated again on exit from the node.

I suspect that this is the cause...

WMBDEV1

Posted: Fri Mar 20, 2009 7:37 am Post subject:

Sentinel

Joined: 05 Mar 2009
Posts: 888
Location: UK

From the link:
http://www.mqseries.net/phpBB2/viewtopic.php?p=186660&sid=5b30eac497f6aacb249a3f2f43513774

it suggests

Code:

Set OutputRoot.Properties.MessageType

i've not tried this however.

You can achieve what you want by putting an RCD node after the compute, specifying jms_text in the message domain field and ticking the "Reset Message Domain" box.

Hope that helps

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