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Message
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| Kumar4 |
 Posted: Tue Aug 21, 2007 9:28 am Post subject: Reading XML Elements inside XML Message |
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Apprentice
Joined: 12 Aug 2007
Posts: 27
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Hi,
I have a scenario where I get XML Message in which Header part has senders information and body of XML Message contains a sub xml message. Below is the example
<?xmlversion......>
<Message>
<Message1>
<Messaged ID></MessageID>
<Data>
<![CDATA[
<?xml version ="1.0"..>
<!DOCTYPE..?
<Desc>
<Emp>
<.....>
<.....>
</Emp>
</Desc> ]]>
/Data>
</Message1>
</Message>
Now my question is..How can I populate output message with <Emp> element from the Input message dynamically.
<Emp> element changes as per the message, It might be <dept>,<dvision>...etc
How can I code to get the dynamcally changing message inside a message
InputRoot.XMLNS.Message.Message1.Data...?
Thanks |
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| elvis_gn |
| Posted: Tue Aug 21, 2007 9:38 am Post subject: |
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Padawan
Joined: 08 Oct 2004
Posts: 1905
Location: Dubai
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Hi Kumar4,
You can create an XML tree in the LocalEnvironment(using the Domain clause) of the entire CDATA....something like CREATE LASTCHILD OF xxx DOMAIN 'XMLNS' FROM <the CDATA path>
Then DETACH and ATTACH to the Output tree.
Regards. |
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| Kumar4 |
| Posted: Tue Aug 21, 2007 10:23 am Post subject: |
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Apprentice
Joined: 12 Aug 2007
Posts: 27
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Hi,
Thanks for your response.
I understood the logic, But I dont want the <CDATA and Doc type declarations from the InputMessage, I just need <emp> from the <Data>
element and that too dynamically changing.
I created a child for LocalEnvironment with the CDATA position.
But when I access the LocalEnv it brings up the Doc type declarations which I dont need.
Am I understanding it correct?
Please brief ?
Thanks |
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| elvis_gn |
| Posted: Tue Aug 21, 2007 10:45 am Post subject: |
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Padawan
Joined: 08 Oct 2004
Posts: 1905
Location: Dubai
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Hi Kumar4,
So you are half way there, perhaps if you used a reference to FIRSTCHILD with the TYPE to element within this new tree you would get to your 'emp' dynamically.
Regards. |
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| Kumar4 |
| Posted: Tue Aug 21, 2007 10:52 am Post subject: |
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Apprentice
Joined: 12 Aug 2007
Posts: 27
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Thanks
Below is my LocalEnvironment setting statement .
CREATE LASTCHILD OF InputLocalEnvironment DOMAIN 'XMLNS' FROM InputRoot.XMLNS.Messages.Message1.Data.(XML.Element)FIRSTCHILD;
ATTACH InputLocalEnvironment to OutputRoot.XML.Message.Data AS LASTCHILD;
You mean as above..?
Correct me IF I'm wrong, really I'm not able to put that statement correctly
Thanks Again! |
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| elvis_gn |
| Posted: Tue Aug 21, 2007 11:09 am Post subject: |
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Padawan
Joined: 08 Oct 2004
Posts: 1905
Location: Dubai
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Hi Kumar4,
I don't have the toolkit on my system, so I can't give you an accurate response, but I think the below should work
| Code: |
CREATE LASTCHILD OF InputLocalEnvironment DOMAIN 'XMLNS' FROM InputRoot.XMLNS.Messages.Message1.Data.(XML.Element)*;
ATTACH InputLocalEnvironment to OutputRoot.XML.Message.Data AS LASTCHILD; |
If it does not work, you can try to use 'TYPE 0x01000000' in a MOVE statement and then do the ATTACH.
Incase you are not getting around this, please paste a file trace of the LocalEnvironment taken after this ESQL processing, or if the code itself is throwing errors, then what the error is and on which line.
Regards. |
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| Kumar4 |
| Posted: Tue Aug 21, 2007 11:35 am Post subject: |
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Apprentice
Joined: 12 Aug 2007
Posts: 27
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CREATE LASTCHILD OF InputLocalEnvironment DOMAIN 'XMLNS' FROM InputRoot.XMLNS.Messages.Message1.Data.(XML.Element)*;
ATTACH InputLocalEnvironment to OutputRoot.XML.Message.Data AS LASTCHILD;
Above statement doesnt work, following is the error log
BIP2560E:
A reference variable is required here.
The statement or function requires a reference variable. The name given must therefore be the name of a declared reference variable and may not be extended (ie by a dot and another name)
Correct the syntax of the expression and redeploy the message flow.
I even tried that with the following
CREATE LASTCHILD OF InputLocalEnvironment DOMAIN 'XMLNS' FROM InputRoot.XMLNS.Messages.Message1.Data;
Still errors out.
Please correct me
Thanks |
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| Kumar4 |
| Posted: Tue Aug 21, 2007 1:11 pm Post subject: |
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Apprentice
Joined: 12 Aug 2007
Posts: 27
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Can anybody reply to the above post please!!
Thanks |
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| fjb_saper |
| Posted: Tue Aug 21, 2007 1:27 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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Why do you want to modify InputLocalEnvironment which IIRC is as unmutable as InputRoot. Just use Environment instead of InputLocalEnvironment ....
Enjoy 
_________________
MQ & Broker admin |
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| Kumar4 |
| Posted: Tue Aug 21, 2007 1:55 pm Post subject: |
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Apprentice
Joined: 12 Aug 2007
Posts: 27
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thanks!
But I get the same error, when I do that.
If you can look into my previous posts, The LocalEnvironment was used to store the Input Message information and attach that to Output Message.
I was trying to grab a part of message from Input and assign that to Output which should be done dynamicaly.
I also pasted my sample Input and Output in the above post.
Do I need to configure this information in Compute Node properties for "Compute Mode" as Local Ennvironment and Message?
Thanks |
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| elvis_gn |
| Posted: Tue Aug 21, 2007 9:39 pm Post subject: |
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Padawan
Joined: 08 Oct 2004
Posts: 1905
Location: Dubai
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Hi Kumar4,
| Kumar4 wrote: |
ATTACH InputLocalEnvironment to OutputRoot.XML.Message.Data AS LASTCHILD;
Above statement doesnt work, following is the error log
BIP2560E:
A reference variable is required here.
The statement or function requires a reference variable. The name given must therefore be the name of a declared reference variable and may not be extended (ie by a dot and another name) |
You cannot use a field in the ATTACH statement, it should be reference variable.
| Code: |
CREATE LASTCHILD OF OutputLocalEnvironment DOMAIN 'XMLNS' FROM InputRoot.XMLNS.Messages.Message1.Data.(XML.Element)*;
DECLARE rToBeAttached REFERENCE TO OutputLocalEnvironment.*[<];
ATTACH rToBeAttached TO OutputRoot.XML.Message.Data AS LASTCHILD; |
The above code deploys, but not sure if it works  (no time to test, sorry)
Set the compute node properties to 'Local Environment and Message' and take a file trace.
Regards. |
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| Kumar4 |
| Posted: Wed Aug 22, 2007 7:25 am Post subject: |
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Apprentice
Joined: 12 Aug 2007
Posts: 27
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Thanks For the reply.
deployment worked, but at the runtime it complains of assigning field which already has a parent. I'm not able to understand the error.
Following is the log file:
10:12:26 test WebSphere Broker v6003[32683]: (WBRK6_DEFAULT_BROKER.Message_Exec_Group)[-1410204752]BIP2628E: Exc
eption condition detected on input node 'Message 1_to 2.MQInput'. : WBRK6_DEFAULT_BROKER.f7d1c783-1401-0000-0080-a
deba8e7c516: /build/S600_P/src/DataFlowEngine/ImbCommonInputNode.cpp: 1104: ImbCommonInputNode::run: ComIbmMQInputNode: Message_1_to_2_Msgflow#FCMComposite_1_9
10:12:26 test WebSphere Broker v6003[32683]: (WBRK6_DEFAULT_BROKER.Message_Exec_Group)[-1410204752]BIP2230E: Err
or detected whilst processing a message in node 'Message 1_to 2.Compute'. : WBRK6_DEFAULT_BROKER.f7d1c783-1401-000
0-0080-adeba8e7c516: /build/S600_P/src/DataFlowEngine/ImbComputeNode.cpp: 464: ImbComputeNode::evaluate: ComIbmComputeNode: Message_1_to_2_Msgflow#FCMComposite_1_3
10:12:26 test WebSphere Broker v6003[32683]: (WBRK6_DEFAULT_BROKER.Message_Exec_Group)[-1410204752]BIP2488E: (.
Message 1_to 2_Compute.Main, 4.4) Error detected whilst executing the SQL statement 'CopyEntireMessage();'. : WBRK
6_DEFAULT_BROKER.f7d1c783-1401-0000-0080-adeba8e7c516: /build/S600_P/src/DataFlowEngine/ImbRdl/ImbRdlStatementGroup.cpp: 589:
SqlStatementGroup::execute: ComIbmComputeNode: Message 1_to 2#FCMComposite_1_3
10:12:26 test WebSphere Broker v6003[32683]: (WBRK6_DEFAULT_BROKER.Message_Exec_Group)[-1410204752]BIP2934E: Err
or detected whilst executing the function or procedure 'CopyEntireMessage'. : WBRK6_DEFAULT_BROKER.f7d1c783-1401-0000-0080-ade
ba8e7c516: /build/S600_P/src/DataFlowEngine/ImbRdl/ImbRdlRoutine.cpp: 548: SqlRoutine::invoke: ComIbmComputeNode: Message_1_to_2_Msgflow#FCMComposite_1_3
10:12:26 test WebSphere Broker v6003[32683]: (WBRK6_DEFAULT_BROKER.Message_Exec_Group)[-1410204752]BIP2488E: (.
Message 1_to 2_Compute.CopyEntireMessage, 37.4) Error detected whilst executing the SQL statement 'ATTACH rToBeAtt
ached TO OutputRoot.XML.Message.Data;'. : WBRK6_DEFAULT_BROKER.f7d1c783-1401-0000-0080-adeba8e7c516: /build/S600_P/src/D
ataFlowEngine/ImbRdl/ImbRdlStatementGroup.cpp: 589: SqlStatementGroup::execute: ComIbmComputeNode: Message 1_to 2#
FCMComposite_1_3
10:12:26 test WebSphere Broker v6003[32683]: (WBRK6_DEFAULT_BROKER.Message_Exec_Group)[-1410204752]BIP2332E: Err
or attaching field '(0x01000010):XMLNS' to field '(0x01000000):Data' which already has a parent. : WBRK6_DEFAULT_BROKER.f7d1c
783-1401-0000-0080-adeba8e7c516: /build/S600_P/src/DataFlowEngine/ImbParser.cpp: 1244: ImbSyntaxElement::attachAsLastChild: :
The message goes to Error queue which is connected to the failure terminal of MQInput
Please advise?
Thanks |
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| Kumar4 |
| Posted: Wed Aug 22, 2007 7:27 am Post subject: |
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Apprentice
Joined: 12 Aug 2007
Posts: 27
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One more question:
Do the OutputRoot should start with the OutputRoot.XMLNS or XML?
AS the Input Domain is XMLNS, Does the output cares?
Thanks |
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| Vitor |
| Posted: Wed Aug 22, 2007 7:33 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| Kumar4 wrote: |
Do the OutputRoot should start with the OutputRoot.XMLNS or XML?
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XML is depreciated in v6. Use XMLNS or XMLNSC. But it doesn't matter what the input is.
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| Kumar4 |
| Posted: Wed Aug 22, 2007 7:35 am Post subject: |
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Apprentice
Joined: 12 Aug 2007
Posts: 27
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Thanks for that clarification
Could you please reply to above post (which has error log)
Thanks |
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