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| Can both XML and NEON parsers be used for same message ? |
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| MVO |
 Posted: Wed Apr 17, 2002 5:27 pm Post subject: |
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Centurion
Joined: 09 Sep 2001
Posts: 131
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Hi,
I'd like to know if we can use both XML and NEON parsers to parse a message (MQSI 2.0.2 and up, on Sun Solaris with DB2).
For example:
<Message>
<MessageHdr><f1>data1</f1><f2>data2</f2></MessageHdr>
<MessageBody>a formatted message</MessageBody>
</Message>
"a formatted message" is a character string having multiple fields, tag delimited by either <sp> or <cr>, some fields are optional, and they can be in any order. As far as I know, only NEON can handle partially parse this type of message. I always have problem with the delimiter being either <sp> or <cr>.
Can you help please ?
Thanks |
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| kolban |
| Posted: Wed Apr 17, 2002 7:46 pm Post subject: |
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Grand Master
Joined: 22 May 2001
Posts: 1072
Location: Fort Worth, TX, USA
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| Once you have a field extracted from the XML message, you can then apply a different parser (possibly NEON) to one of the fields. This can be done with the Reset Content Descriptor or the new CREATE FIELD ESQL statement. |
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| MVO |
| Posted: Thu Apr 18, 2002 4:51 am Post subject: |
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Centurion
Joined: 09 Sep 2001
Posts: 131
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| I thought the ResetContentDescriptor will reset the entire message, not just a field !!! Could you please tell me a little more on how the reset can be done on just one field. Very much appreciated !!! |
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| kirani |
| Posted: Thu Apr 18, 2002 11:03 am Post subject: |
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Jedi Knight
Joined: 05 Sep 2001
Posts: 3779
Location: Torrance, CA, USA
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CREATE FIELD ESQL is available only in wMQI 2.1
This is how you can do this in MQSI 2.0.2,
First parse the message as XML. In a compute node, extract the data from appropriate field (InputBody.Message.MessageBody) and send it as output message. Use ESQL like ..
SET OutputRoot."BLOB"."BLOB" = CAST(InputBody.Message.MessageBody AS BLOB);
Wire RCD node to the out terminal of this Compute node which parses incoming message to appropriate NEON format. You will not be able to refer to any other field except MessageBody in this path.
_________________
Kiran
IBM Cert. Solution Designer & System Administrator - WBIMB V5
IBM Cert. Solutions Expert - WMQI
IBM Cert. Specialist - WMQI, MQSeries
IBM Cert. Developer - MQSeries
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