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Message
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| mbmqusr |
 Posted: Tue Jul 02, 2013 2:29 pm Post subject: [SOLVED] Using ASBITSTREAM with DFDL parsers |
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Newbie
Joined: 02 Jul 2013
Posts: 9
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Dear All
I am facing a problem. If you can please advise. This is the code below.
I am using WMB V8.0.02
| Code: |
DECLARE vchar CHARACTER;
SET vchar = CAST(ASBITSTREAM(InputRoot.DFDL.ROOTRECORD.SUBTREE ENCODING InputRoot.MQMD.Encoding CCSID InputRoot.MQMD.CodedCharSetId OPTIONS RootBitStream ) AS CHARACTER CCSID InputRoot.MQMD.CodedCharSetId ); |
I am getting the Entire DFDL Tree as character, even though I am referring to a Subtree for the FieldReference parameter of the ASBITSTREAM function.
I explored the OPTIONS, and stumbled upon choices like RootBitStream, FolderBitStream and like things. Looks like FolderBitStream is not supported for DFDL. And the way RootBitstream works, it will always give me the entire message as a bitstream, not just the Subtree.
Is my understanding correct?
If my understanding is correct, how do i achieve it alternatively?
Can please advise
Thank You
mbmqusr
Last edited by mbmqusr on Wed Jul 03, 2013 10:05 am; edited 1 time in total |
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| kimbert |
| Posted: Tue Jul 02, 2013 2:39 pm Post subject: |
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Jedi Council
Joined: 29 Jul 2003
Posts: 5543
Location: Southampton
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You are correct that the DFDL domain does not support the FolderBitstream option.
There is an easy way to work around it. Create a DFDL tree in the local environment. Copy the subtree there, and then use ASBITSTREAM to convert it to a bitstream. |
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| mbmqusr |
| Posted: Tue Jul 02, 2013 2:51 pm Post subject: |
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Newbie
Joined: 02 Jul 2013
Posts: 9
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Thank You Kimbert
I didn't understand about local environment.
But, i tried doing this with no sucess.
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DECLARE vchar CHARACTER;
SET Environment.DFDL.SUBTREE = InputRoot.DFDL.ROOTRECORD.SUBTREE;
SET vchar = CAST(ASBITSTREAM(Environment.DFDL.SUBTREE ENCODING InputRoot.MQMD.Encoding CCSID InputRoot.MQMD.CodedCharSetId OPTIONS RootBitStream ) AS CHARACTER CCSID InputRoot.MQMD.CodedCharSetId ); |
Can you please advise? |
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| mbmqusr |
| Posted: Tue Jul 02, 2013 2:57 pm Post subject: |
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Newbie
Joined: 02 Jul 2013
Posts: 9
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Got it. You may have meant meant a DFDL structure in the localenvironment using CREATE... PARSE
Let me try that |
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| kimbert |
| Posted: Tue Jul 02, 2013 3:07 pm Post subject: |
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Jedi Council
Joined: 29 Jul 2003
Posts: 5543
Location: Southampton
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| Yes, that is exactly what I meant. |
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| mbmqusr |
| Posted: Tue Jul 02, 2013 3:17 pm Post subject: |
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Newbie
Joined: 02 Jul 2013
Posts: 9
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Thank You again Kimbert
Did you mean Environment or LocalEnvironment? |
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| mbmqusr |
| Posted: Tue Jul 02, 2013 3:52 pm Post subject: |
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Newbie
Joined: 02 Jul 2013
Posts: 9
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I am trying to create the DFDL domain in local environment or in environment. Both fails
| Code: |
CREATE LASTCHILD OF Environment.Variables
DOMAIN('DFDL')
PARSE (ASBITSTREAM(InputRoot.DFDL.ROOTRECORD.SUBTREE ENCODING InputRoot.MQMD.Encoding CCSID InputRoot.MQMD.CodedCharSetId)); |
It gives a BIP5822 error saying
| Quote: |
| Cannot continue - messageTypeName is empty |
Any ideas? |
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| kimbert |
| Posted: Wed Jul 03, 2013 12:38 am Post subject: |
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Jedi Council
Joined: 29 Jul 2003
Posts: 5543
Location: Southampton
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| Quote: |
| Did you mean Environment or LocalEnvironment? |
I meant what I said  . You are smart enough to work out which one you need.
| Quote: |
| I am trying to create the DFDL domain in local environment or in environment. Both fails |
Yes. That is because you have failed to press 'start' on your brain.
Your code is
1. Converting InputRoot.DFDL.ROOTRECORD.SUBRECORD to a sequence of bytes
2. Attempting to parse that sequence of bytes back into a message tree ( but you did not provide the name of a global element, so that fails )
3. Placing the resulting message tree as the last child of Environment.Variables.
I suggest that you change your code to
1. Create an element in the (Local)Environment, owned by the DFDL domain
2. Copy your subtree under that node.
This forum is full of examples that show how to do this ( most using the XMLNSC domain ). Please use the search button. |
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| mbmqusr |
| Posted: Wed Jul 03, 2013 9:05 am Post subject: |
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Newbie
Joined: 02 Jul 2013
Posts: 9
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Sorry, I think I am not getting it
I tried following what you said Kimbert. Looks like I was not able to, thats why I still have a problem.
| Code: |
CREATE LASTCHILD OF Environment.Variables
DOMAIN 'DFDL';
SET Environment.Variables.DFDL.SUBTREE = InputRoot.DFDL.ROOTRECORD.SUBTREE;
DECLARE vchar BLOB;
SET vchar = ASBITSTREAM(Environment.Variables.DFDL.SUBTREE ENCODING InputRoot.MQMD.Encoding CCSID InputRoot.MQMD.CodedCharSetId); |
It is not recognizing the Root element, and giving me an error
Root element 'SUBTREE' in namespace '' does not exist.
Do i have to define the SUBTREE as a Global element in the same or another DFDL?
I am really not able to start my brain, it looks like |
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| mbmqusr |
| Posted: Wed Jul 03, 2013 10:04 am Post subject: |
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Newbie
Joined: 02 Jul 2013
Posts: 9
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Solved, Finally. This is what I did
I created another DFDL Global Element called SUBTREE
And then this works
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DECLARE parseOptions INTEGER BITOR(ValidateContentAndValue, ValidateException, ValidateComplete);
DECLARE vAcctNum CHARACTER;
CREATE LASTCHILD OF Environment.Variables
DOMAIN 'DFDL';
SET Environment.Variables.DFDL.SUBTREE = InputRoot.DFDL.ROOTRECORD.SUBTREE;
SET vAcctNum = CAST(ASBITSTREAM(Environment.Variables.DFDL.SUBTREE OPTIONS parseOptions ENCODING InputRoot.MQMD.Encoding CCSID InputRoot.MQMD.CodedCharSetId TYPE '{}:SUBTREE') AS CHARACTER CCSID InputRoot.MQMD.CodedCharSetId); |
Am i doing anything redundant? Or this is fine?
Thank You Kimbert |
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| kimbert |
| Posted: Wed Jul 03, 2013 11:45 am Post subject: |
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Jedi Council
Joined: 29 Jul 2003
Posts: 5543
Location: Southampton
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Glad you got it working.
I don't think you are doing anything redundant. You needed the CREATE...DOMAIN 'DFDL', as you now realize.
| Quote: |
This is what I did
I created another DFDL Global Element called SUBTREE |
I don't see where you are doing that. The code looks the same in both of your last two posts. But it doesn't matter - the main thing is that the code is correct.
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| I am really not able to start my brain, it looks like |
I disagree - it seems to be operating normally now |
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| FireDragon$layer |
| Posted: Fri Feb 17, 2017 8:17 am Post subject: |
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Newbie
Joined: 17 Feb 2017
Posts: 1
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Hi pardon me if I'm wrong in reopening this thread.
I am able to parse a DFDL message successfully by using this code -
| Code: |
SET invMsgBlob = ASBITSTREAM(InputBody
OPTIONS RootBitStream
ENCODING InputRoot.MQMD.Encoding
CCSID InputRoot.MQMD.CodedCharSetId
TYPE refToInvoiceVars.MessageType); |
but the BLOB doesn't seem to have any data in it.
Any suggestions here?? 
What is the correct CCSID and ENCODING i should be using to convert DFDL to BLOB ? |
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