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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » Tag data not at the beginning of msg - How to parse

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Ramphart
PostPosted: Tue Jul 23, 2013 2:48 am    Post subject: Tag data not at the beginning of msg - How to parse Reply with quote

Disciple

Joined: 21 Jul 2004
Posts: 150
Location: South Africa, JHB
- Windows Server 2008 R2
- Message Broker 7.0 (Ver 7.0.0.5)
- Toolkit 7.0.0.4

CURRENT SCENARIO
Sample Input Message (Every time a "Hdr" appears it denoted the start of a new group)
"Hdr",9,"BIN09_1874","","6507540150083020130107"
"Det",9,"BIN09_1874","","6507540150083020130107"
"Det",9,"BIN09_1874","","6507540150083020130107"
"Tax",9,"BIN09_1874","","6507540150083020130107"
"Tax",9,"BIN09_1874","","6507540150083020130107"
"TTX",9,"BIN09_1874","","6507540150083020130107"
"TTX",9,"BIN09_1874","","6507540150083020130107"
"Hdr",9,"BIN09_1874","","6507540150083020130108"
"Det",9,"BIN09_1874","","6507540150083020130108"
"Det",9,"BIN09_1874","","6507540150083020130108"
"Tax",9,"BIN09_1874","","6507540150083020130108"
"Tax",9,"BIN09_1874","","6507540150083020130108"
"TTX",9,"BIN09_1874","","6507540150083020130108"
"TTX",9,"BIN09_1874","","6507540150083020130108"


The message was modelled as follows:
Code:
-MessageComplete (Repeating Element Delimiter <CR><LF>)
--LocalComplexType ([Choice,Closed], DES=Tagged Delimted, Delimeter <CR><LF>, Length of Tag = 6)
----MessageSingle (Repeating Element Delimiter <CR><LF>)
------LocalComplexType ([orderdSet,Closed], DES=Tagged Delimted, GroupIndicator="Hdr",Delimeter <CR><LF>, Lenth of Tag = 6)
--------InvHeader (Repeating Element Delimiter <CR><LF>)
----------LocalComplexType ([orderdSet,Closed], DES=All Elements Delimited, Delimeter=,)
------------INVDEST
------------DFNAME
------------EDIREF
------------LINKFLD
--------InvLines (Tag="Det", Repeating Element Delimiter <CR><LF>)
----------LocalComplexType ([orderdSet,Closed], DES=All Elements Delimited, Delimeter=,)
------------INVDEST
------------DFNAME
------------EDIREF
------------LINKFLD
--------InvTax (Tag="Tax", Repeating Element Delimiter <CR><LF>)
----------LocalComplexType ([orderdSet,Closed], DES=All Elements Delimited, Delimeter=,)
------------INVDEST
------------DFNAME
------------EDIREF
------------LINKFLD
----MessageSummary (Repeating Element Delimiter <CR><LF>)
------LocalComplexType ([orderdSet,Closed], DES=Tagged Delimted, GroupIndicator="TTX",Delimeter <CR><LF>, Lenth of Tag = 6)
--------TaxSummary (Repeating Element Delimiter <CR><LF>)
----------LocalComplexType ([orderdSet,Closed], DES=All Elements Delimited, Delimeter=,)
------------INVDEST
------------DFNAME
------------EDIREF
------------LINKFLD


Output Trace is:
Code:
--(0x01000021:Name+):MRM        = ( ['mrm' : 0x2596930]
----(0x01000013:Name+):MessageComplete = (
------(0x01000013:Name+):MessageSingle  = (
--------(0x01000013:Name+):InvHeader = (
------------(0x0300000B:NameValue+):INVDEST  = '9' (CHARACTER)
------------(0x0300000B:NameValue+):DFNAME   = '"BIN09_1874"' (CHARACTER)
------------(0x0300000B:NameValue+):EDIREF   = '""' (CHARACTER)
------------(0x0300000B:NameValue+):LINKFLD  = '"6507540150083020130107"' (CHARACTER)
--------(0x01000013:Name+):InvLines  = (
------------(0x0300000B:NameValue+):INVDEST  = '9' (CHARACTER)
------------(0x0300000B:NameValue+):DFNAME   = '"BIN09_1874"' (CHARACTER)
------------(0x0300000B:NameValue+):EDIREF   = '""' (CHARACTER)
------------(0x0300000B:NameValue+):LINKFLD  = '"6507540150083020130107"' (CHARACTER)
--------(0x01000013:Name+):InvLines  = (
------------(0x0300000B:NameValue+):INVDEST  = '9' (CHARACTER)
------------(0x0300000B:NameValue+):DFNAME   = '"BIN09_1874"' (CHARACTER)
------------(0x0300000B:NameValue+):EDIREF   = '""' (CHARACTER)
------------(0x0300000B:NameValue+):LINKFLD  = '"6507540150083020130107"' (CHARACTER)
--------(0x01000013:Name+):InvTax    = (
------------(0x0300000B:NameValue+):INVDEST  = '9' (CHARACTER)
------------(0x0300000B:NameValue+):DFNAME   = '"BIN09_1874"' (CHARACTER)
------------(0x0300000B:NameValue+):EDIREF   = '""' (CHARACTER)
------------(0x0300000B:NameValue+):LINKFLD  = '"6507540150083020130107"' (CHARACTER)
--------(0x01000013:Name+):InvTax    = (
------------(0x0300000B:NameValue+):INVDEST  = '9' (CHARACTER)
------------(0x0300000B:NameValue+):DFNAME   = '"BIN09_1874"' (CHARACTER)
------------(0x0300000B:NameValue+):EDIREF   = '""' (CHARACTER)
------------(0x0300000B:NameValue+):LINKFLD  = '"6507540150083020130107"' (CHARACTER)
------(0x01000013:Name+):MessageSummary = (
--------(0x01000013:Name+):TaxSummary = (
------------(0x0300000B:NameValue+):INVDEST  = '9' (CHARACTER)
------------(0x0300000B:NameValue+):DFNAME   = '"BIN09_1874"' (CHARACTER)
------------(0x0300000B:NameValue+):EDIREF   = '""' (CHARACTER)
------------(0x0300000B:NameValue+):LINKFLD  = '"6507540150083020130107"' (CHARACTER)
------(0x01000013:Name+):MessageSummary = (
--------(0x01000013:Name+):TaxSummary = (
------------(0x0300000B:NameValue+):INVDEST  = '9' (CHARACTER)
------------(0x0300000B:NameValue+):DFNAME   = '"BIN09_1874"' (CHARACTER)
------------(0x0300000B:NameValue+):EDIREF   = '""' (CHARACTER)
------------(0x0300000B:NameValue+):LINKFLD  = '"6507540150083020130107"' (CHARACTER)
------(0x01000013:Name+):MessageSingle  = (
--------(0x01000013:Name+):InvHeader = (
------------(0x0300000B:NameValue+):INVDEST  = '9' (CHARACTER)
------------(0x0300000B:NameValue+):DFNAME   = '"BIN09_1874"' (CHARACTER)
------------(0x0300000B:NameValue+):EDIREF   = '""' (CHARACTER)
------------(0x0300000B:NameValue+):LINKFLD  = '"6507540150083020130108"' (CHARACTER)
--------(0x01000013:Name+):InvLines  = (
------------(0x0300000B:NameValue+):INVDEST  = '9' (CHARACTER)
------------(0x0300000B:NameValue+):DFNAME   = '"BIN09_1874"' (CHARACTER)
------------(0x0300000B:NameValue+):EDIREF   = '""' (CHARACTER)
------------(0x0300000B:NameValue+):LINKFLD  = '"6507540150083020130108"' (CHARACTER)
--------(0x01000013:Name+):InvLines  = (
------------(0x0300000B:NameValue+):INVDEST  = '9' (CHARACTER)
------------(0x0300000B:NameValue+):DFNAME   = '"BIN09_1874"' (CHARACTER)
------------(0x0300000B:NameValue+):EDIREF   = '""' (CHARACTER)
------------(0x0300000B:NameValue+):LINKFLD  = '"6507540150083020130108"' (CHARACTER)
--------(0x01000013:Name+):InvTax    = (
------------(0x0300000B:NameValue+):INVDEST  = '9' (CHARACTER)
------------(0x0300000B:NameValue+):DFNAME   = '"BIN09_1874"' (CHARACTER)
------------(0x0300000B:NameValue+):EDIREF   = '""' (CHARACTER)
------------(0x0300000B:NameValue+):LINKFLD  = '"6507540150083020130108"' (CHARACTER)
--------(0x01000013:Name+):InvTax    = (
------------(0x0300000B:NameValue+):INVDEST  = '9' (CHARACTER)
------------(0x0300000B:NameValue+):DFNAME   = '"BIN09_1874"' (CHARACTER)
------------(0x0300000B:NameValue+):EDIREF   = '""' (CHARACTER)
------------(0x0300000B:NameValue+):LINKFLD  = '"6507540150083020130108"' (CHARACTER)
------(0x01000013:Name+):MessageSummary = (
--------(0x01000013:Name+):TaxSummary = (
------------(0x0300000B:NameValue+):INVDEST  = '9' (CHARACTER)
------------(0x0300000B:NameValue+):DFNAME   = '"BIN09_1874"' (CHARACTER)
------------(0x0300000B:NameValue+):EDIREF   = '""' (CHARACTER)
------------(0x0300000B:NameValue+):LINKFLD  = '"6507540150083020130108"' (CHARACTER)
------(0x01000013:Name+):MessageSummary = (
--------(0x01000013:Name+):TaxSummary = (
------------(0x0300000B:NameValue+):INVDEST  = '9' (CHARACTER)
------------(0x0300000B:NameValue+):DFNAME   = '"BIN09_1874"' (CHARACTER)
------------(0x0300000B:NameValue+):EDIREF   = '""' (CHARACTER)
------------(0x0300000B:NameValue+):LINKFLD  = '"6507540150083020130108"' (CHARACTER)



NEW SCENARIO

The incoming data now has 3 fields before the tags are reached ("Hdr","Det","Tax","TTX")

"BINV","Customer Invoices1","asdfbc","Hdr",9,"BIN09_1874","","6507540150083020130107"
"BINV","Customer Invoices1","dessf","Det",9,"BIN09_1874","","6507540150083020130107"
"BINV","Customer Invoices1","lmsfc","Det",9,"BIN09_1874","","6507540150083020130107"
"BINV","Customer Invoices1","dea","Tax",9,"BIN09_1874","","6507540150083020130107"
"BINV","Customer Invoices1","dad","Tax",9,"BIN09_1874","","6507540150083020130107"
"BINV","Customer Invoices1","adqqqsc","TTX",9,"BIN09_1874","","6507540150083020130107"
"BINV","Customer Invoices1","adfc","TTX",9,"BIN09_1874","","6507540150083020130107"
"BINV","Customer Invoices2","asdfac","Hdr",9,"BIN09_1874","","6507540150083020130108"
"BINV","Customer Invoices2","asfsdfc","Det",9,"BIN09_1874","","6507540150083020130108"
"BINV","Customer Invoices2","sbc","Det",9,"BIN09_1874","","6507540150083020130108"
"BINV","Customer Invoices2","fbsfc","Tax",9,"BIN09_1874","","6507540150083020130108"
"BINV","Customer Invoices2","erc","Tax",9,"BIN09_1874","","6507540150083020130108"
"BINV","Customer Invoices2","arc","TTX",9,"BIN09_1874","","6507540150083020130108"
"BINV","Customer Invoices2","absfc","TTX",9,"BIN09_1874","","6507540150083020130108"

How can one model this message when the identifying tag is not the first field in the message? It will always be the 4th field. And the message tree in the broker need to be built same as before:
Code:
----(0x01000013:Name+):MessageComplete = (
------(0x01000013:Name+)MessageSingle  = (
--------(0x01000013:Name+):InvHeader = (
--------(0x01000013:Name+):InvLines  = (
--------(0x01000013:Name+):InvLines  = (
--------(0x01000013:Name+):InvTax    = (
--------(0x01000013:Name+):InvTax    = (
------(0x01000013:Name+)MessageSummary = (
--------(0x01000013:Name+):TaxSummary = (
--------(0x01000013:Name+):TaxSummary = (
------(0x01000013:Name+)MessageSingle  = (
--------(0x01000013:Name+):InvHeader = (
--------(0x01000013:Name+):InvLines  = (
--------(0x01000013:Name+):InvLines  = (
--------(0x01000013:Name+):InvTax    = (
--------(0x01000013:Name+):InvTax    = (
------(0x01000013:Name+)MessageSummary = (
--------(0x01000013:Name+):TaxSummary = (
--------(0x01000013:Name+):TaxSummary = (


Thank you in advance for any help
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kimbert
PostPosted: Tue Jul 23, 2013 2:56 am    Post subject: Reply with quote

Jedi Council

Joined: 29 Jul 2003
Posts: 5542
Location: Southampton
Very good problem description - thanks for taking the time.

If you were using DFDL then you could rely on speculative parsing to do this for you. Or you could use a discriminator expression on the record. Or you could use a discriminator with testKind='pattern' to match only the portion of the data up to and including the identifier field.
But in the MRM parser, none of those options are available. You have to use data patterns. So...
1. Change the 'Data Element Separation' property on the inner LocalComplexType from 'Tagged Delimited' to 'Use Data Pattern'.
2. For each type of record, construct a data pattern that describes the entire record and set its 'Data Pattern' property accordingly.

You may need to make other changes to fix errors in the Problems view, but those are the important steps.
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