For reports generated by applications

 

If your application generates reports, always copy the WebSphere MQ headers that are present at the start of the original message data to the report message data. Then add none, 100 bytes, or all of the original message data (or whatever other amount you would usually include) to the report message data.

We can recognize the WebSphere MQ headers that must be copied by looking at the successive Format names, starting with the MQMD and continuing through any headers present. The following Format names indicate these WebSphere MQ headers:

• MQMDE

• MQDLH

• MQXQH

• MQIIH

• MQH*

MQH* means any name that starts with the characters MQH.

The Format name occurs at specific positions for MQDLH and MQXQH, but for the other WebSphere MQ headers it occurs at the same position. The length of the header is contained in a field that also occurs at the same position for MQMDE, MQIMS, and all MQH* headers.

If you are using a V1 MQMD, and you are reporting on a segment, or a message in a group, or a message for which segmentation is allowed, the report data must start with an MQMDE. Set the OriginalLength field to the length of the original message data excluding the lengths of any WebSphere MQ headers that you find.

 

Parent topic:

Reports and segmented messages

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