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| Model repeated smaller messages in a big message (MRM TDS) |
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| Ramphart |
 Posted: Thu Aug 05, 2004 1:57 am Post subject: Model repeated smaller messages in a big message (MRM TDS) |
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Disciple
Joined: 21 Jul 2004
Posts: 150
Location: South Africa, JHB
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Hi,
- I'm using WMQI 2.1 CSD 07 on Windows 2000.
- I'm trying to create a Message Set with a TDS layer to model a repeated structure
Input Message 1
PAH1,F<CR><LF>
PALA,X,CVR<CR><LF>
PALB,Y,CLR<CR><LF>
PALC,Z,LVR<CR><LF>
Input Message 2
PAH1,F<CR><LF>
PALA,X,CVR<CR><LF>
PALB,Y,CLR<CR><LF>
PALC,Z,LVR<CR><LF>
PAH2,G<CR><LF>
PALD,1,KDX<CR><LF>
PALE,2,LDX<CR><LF>
PALF,3,RDX<CR><LF>
Info
- PAH indicates a header line
- PAL indicates a line item relating to the previous header (PAH)
- One PAH and the PAL's below it forms one message
- Fields are comma delimited
- Records are <CR><LF> delimited
Message Set Structure
CMT = Compound Type
DES = Data element separation
REI = Repeat Element Indicator
-Message (CMT - TDS: 'DES' = All elements delimited - 'Delimiter' = <CR><LF> - MessageSingle set to Repeat with 'REI' = <CR><LF> )
--MessageSingle (CMT - TDS: 'DES' = All elements delimited - 'Delimiter' = <CR><LF> - MsgLine set to Repeat with 'REI' = <CR><LF> )
----MsgHeader (CMT - TDS: 'DES' = All elements delimited - 'Delimiter' = <CR><LF>)
-------HdrCmpType (CMT - TDS: 'DES' = All elements delimited - 'Delimiter' = ,(comma) - 'Group Indicater' = PAH)
---------HdrNum (String)
---------HdrType (String)
----MsgLine (CMT - TDS: 'DES' = All elements delimited - 'Delimiter' = <CR><LF>)
-------LineCmpType (CMT - TDS: 'DES' = All elements delimited - 'Delimiter' = ,(comma) - 'Group Indicater' = PAL)
---------RecordType (String)
---------Action (String)
---------ClientID (String)
Results when testing
-Using Input Message 1 - One Message (i.e. One Header with its lines)
(0x1000021)MRM = (
(0x1000013)MsgSingleMessage = (
(0x1000013)MsgHeader = (
(0x300000B)HdrNum = '1'
(0x300000B)HdrType = 'F'
)
(0x1000013)MsgLines = (
(0x300000B)RecordType = 'A'
(0x300000B)Action = 'X'
(0x300000B)ClientID = 'CVR'
)
(0x1000013)MsgLines = (
(0x300000B)RecordType = 'B'
(0x300000B)Action = 'Y'
(0x300000B)ClientID = 'CLR'
)
(0x1000013)MsgLines = (
(0x300000B)RecordType = 'C'
(0x300000B)Action = 'Z'
(0x300000B)ClientID = 'LVR'
)
-Using Input Message 2 - MORE THAN One Message (i.e. Several Headers with its lines)
<ParserException>
<File>F:\build\S210_BP\src\MTI\MTIforBroker\MtiImbParser2\MtiImbFIHandler.cpp</File>
<Line>438</Line>
<Function>MtiImbFIHandler::endMessageContent</Function>
<Type />
<Name />
<Label />
<Text>MTI. Not all the buffer was used when reading message</Text>
<Catalog>WMQIv210</Catalog>
<Severity>3</Severity>
<Number>5288</Number>
HELP HELP HELP
-How do I model the repeating Message ?
-Thx in advance for any assistance
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| wooda |
| Posted: Thu Aug 05, 2004 2:29 am Post subject: |
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Master
Joined: 21 Nov 2003
Posts: 265
Location: UK
|
I'd recommend the following:
Message (DES=Tagged Delimited, Delim=<CR><LF>)
- Group (repeat=yes,DES=Tagged Delimited, Delim=<CR><LF>, Length of Tag=3, RED=<CR><LF>)
-- MsgHeader(TAG=PAH,DES=All elements delim, delim=,(comma) repeat=no) [add child elements here]
-- MsgLine(TAG=PAL,DES=All elements delim, delim=,(comma)repeat=yes) [add child elements here]
So a repeating embedded compund type called Group. which repeats with a RED of <CR><LF>.
Group contains a tagged delimited structure where the children had a tag of length 3 (so no need for a tag data separator).
Group contains two fields MsgHeader and MsgLine.
MsgHeader has a tag of PAH and this field doesn't repeat. It contains a comma delimited struture the same as you described.
MsgLine has a tag of PAH and this field does repeat. It contains a comma delimited struture the same as you described. |
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| wooda |
| Posted: Thu Aug 05, 2004 2:35 am Post subject: |
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Master
Joined: 21 Nov 2003
Posts: 265
Location: UK
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Spot the typo in the last line. Of course MsgLine should have a tag of PAL not PAH.  |
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| Ramphart |
| Posted: Thu Aug 05, 2004 3:33 am Post subject: Resolved |
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Disciple
Joined: 21 Jul 2004
Posts: 150
Location: South Africa, JHB
|
Hi Wooda,
Here's the deal. What you've suggested works great. You've saved my life. Now please explain to me why it works cause it's confusing the hell out of me  . I need to understand the logic a bit better. Can you explain the thinking to me please.
| wooda wrote: |
Message (DES=Tagged Delimited, Delim=<CR><LF>)
|
By the way, I had to make the DES=All elements delimited for the Message, Not Tagged Delimited.
I'm sure this was a typo on your side?
Ramo
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| wooda |
| Posted: Thu Aug 05, 2004 4:16 am Post subject: |
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Master
Joined: 21 Nov 2003
Posts: 265
Location: UK
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Hi,
It is basicaly the difference between AED which is blind parsing with delimeters and Tagged which is looking at the message to see what to do next. You model would work until you got to a second PAH which the parser would assume was another PAL and then go off track.
FYI - For the message level compound type I don't think it matters if it's Tagged Delimited or AED. As this structure only has one child which is an embedded structure not an element (so never has a tag anyway). You will probably find if you try tagged delimited then you'd need to set a Tag Data Separator or tag length to avoid errors. Other than that no difference.
cheers,
-Alex |
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| Ramphart |
| Posted: Thu Aug 05, 2004 4:30 am Post subject: |
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Disciple
Joined: 21 Jul 2004
Posts: 150
Location: South Africa, JHB
|
| wooda wrote: |
| It is basicaly the difference between AED which is blind parsing with delimeters and Tagged which is looking at the message to see what to do next. |
Makes sense to me now. Thx a million.
Ramo
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