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| ESQL: Accesing XML fields |
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| Author |
Message
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| chaitanyauk |
 Posted: Sun Feb 17, 2019 4:33 am Post subject: ESQL: Accesing XML fields |
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Apprentice
Joined: 16 Apr 2017
Posts: 30
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Hello Experts,
I trying to access some field value in XML message through ESQL code(using XMLNSC parser), but not able to access the value:
below is my Sample XML:
| Code: |
<ZXML xsi:schemaLocation="http://www.abc.com/zxml trans.xsd" xmlns="http://www.abc.com/zxml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<Header>
<Data>
<Key>
<ID>12345</ID>
</Key>
</Data>
</Header>
</ZXML> |
below is my ESQL code, in none of the way was I able to fetch the data:
| Code: |
SET val1 = InputRoot.XMLNSC.ZXML.Header.Data.Key.ID;
SET val2 = InputRoot.XMLNSC.*.Header.Data.Key.ID;
SET val3 = InputRoot.XMLNSC.(XMLNSC.Element)Header.Data.Key.ID;
SET val4 = InputRoot.XMLNSC.*.*.*.*.Header.Data.Key.ID; |
Also tried removing the namespace, as given here:
https://developer.ibm.com/answers/questions/210953/how-to-remove-or-delete-namespaces-from-xmlnsc-dom/
| Code: |
SET OutputRoot.XMLNSC.*:ZXML.(XMLNSC.NamespaceDecl)* = NULL;
SET OutputRoot.XMLNSC.*:ZXML NAMESPACE = '';
SET OutputRoot.XMLNSC.*:ZXML.(XMLNSC.Attribute)xsi = NULL;
SET OutputRoot.XMLNSC.*:ZXML.(XMLNSC.Attribute)schemaLocation = NULL; |
I was able to remove the namespace: xmlns="http://www.abc.com/zxml", whereas other namespaces remained as it is.
Tried to fetch fieldvalue of the first element, got null;
| Code: |
| SET fv = FIELDNAME(InputRoot.XMLNSC.ZXML); --gives null |
Is there any thing wrong with namespace?
Any help in this regard would be great.
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| timber |
| Posted: Mon Feb 18, 2019 1:42 am Post subject: |
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Grand Master
Joined: 25 Aug 2015
Posts: 1292
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| Please add a Trace node in your message flow. Put it immediately after the input node, and set the Pattern to ${Root}. Post the output in this thread, and I can then explain what is happening. |
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| chaitanyauk |
| Posted: Mon Feb 18, 2019 4:21 am Post subject: |
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Apprentice
Joined: 16 Apr 2017
Posts: 30
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Solved!
Was able to fetch value with below code:
| Quote: |
| SET val1 = InputRoot.XMLNSC.*:ZXML.*:Header.*:Data.*:Key.*:ID; |
XML elements inherit the parent element namespaces by default unless it is specified explicitly.
Thank you! |
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| timber |
| Posted: Mon Feb 18, 2019 5:07 am Post subject: |
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Grand Master
Joined: 25 Aug 2015
Posts: 1292
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Glad you got it working, but this statement is not accurate:
| Quote: |
| XML elements inherit the parent element namespaces by default unless it is specified explicitly |
If you believe that, you will end up very confused next time you deal with an XML message. I suggest that you check out an XML tutorial - the rules are not difficult to understand. |
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