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Java XPath with namespace

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MikeOliverAZ

Posted: Mon Jul 29, 2013 5:41 pm Post subject: Java XPath with namespace

Apprentice

Joined: 10 Jul 2013
Posts: 47

I have the following code in a Java Compute Node.

Code:

MbXPath xp = new MbXPath("in:ParameterList/in:StringParameter");
xp.addNamespacePrefix("in", "http://nsn.com/ossbss/charge.once/wsdl/entity/Tis/xsd/1");
xp.setDefaultNamespace("http://nsn.com/ossbss/charge.once/wsdl/entity/Tis/xsd/1");

List nodeset = (List)message.evaluateXPath(xp);

nodeset is always empty no matter what I specify, "ListParameter/StringParameter" with the namespace and default namespace or not.

Here is the portion of the xml of the message.

Code:

<in:ParameterList>
<in:StringParameter name="CustomerId">639474210070</in:StringParameter>

<in:StringParameter name="AccessKey">639474210070</in:StringParameter>

<in:StringParameter name="EventName">flexible</in:StringParameter>

I think I should see a list of three nodes from above example but I don't.

What am I doing wrong?

Ollie

MikeOliverAZ

Posted: Mon Jul 29, 2013 6:52 pm Post subject: Here is the trace

Apprentice

Joined: 10 Jul 2013
Posts: 47

This is the trace showing the message body down to the desired elements we want in our xpath nodeset.

Code:

(0x01000000:Folder):Body = ( ['xmlnsc' : 0x1e09e80]
(0x01000000:Folder)http://nsn.com/ossbss/charge.once/wsdl/entity/Tis/xsd/1:CommandRequestData = (
(0x03000102:NamespaceDecl)http://www.w3.org/2000/xmlns/:in = 'http://nsn.com/ossbss/charge.once/wsdl/entity/Tis/xsd/1' (CHARACTER)
(0x01000000:Folder )http://nsn.com/ossbss/charge.once/wsdl/entity/Tis/xsd/1:Environment = (
(0x01000000:Folder)http://nsn.com/ossbss/charge.once/wsdl/entity/Tis/xsd/1:Parameter = (
(0x03000100:Attribute):name = 'ApplicationDomain' (CHARACTER)
(0x03000100:Attribute):value = 'CAO_LDM_00' (CHARACTER)
)
)
(0x01000000:Folder )http://nsn.com/ossbss/charge.once/wsdl/entity/Tis/xsd/1:Command = (
(0x01000000:Folder)http://nsn.com/ossbss/charge.once/wsdl/entity/Tis/xsd/1:Operation = (
(0x03000100:Attribute):namespace = 'CA' (CHARACTER)
(0x03000100:Attribute):name = 'Recharge' (CHARACTER)
(0x01000000:Folder )http://nsn.com/ossbss/charge.once/wsdl/entity/Tis/xsd/1:ParameterList = (
(0x03000000:PCDataField)http://nsn.com/ossbss/charge.once/wsdl/entity/Tis/xsd/1:StringParameter = '639474210070' (CHARACTER)
(
(0x03000100:Attribute):name = 'CustomerId' (CHARACTER)
)
(0x03000000:PCDataField)http://nsn.com/ossbss/charge.once/wsdl/entity/Tis/xsd/1:StringParameter = '639474210070' (CHARACTER)
(
(0x03000100:Attribute):name = 'AccessKey' (CHARACTER)
)
(0x03000000:PCDataField)http://nsn.com/ossbss/charge.once/wsdl/entity/Tis/xsd/1:StringParameter = 'flexible' (CHARACTER)
(
(0x03000100:Attribute):name = 'EventName' (CHARACTER)
)

kimbert

Posted: Tue Jul 30, 2013 4:19 am Post subject:

Jedi Council

Joined: 29 Jul 2003
Posts: 5542
Location: Southampton

I think your path is incomplete:

Code:

List nodeset = (List)message.evaluateXPath(xp);

If 'message' is pointing at the root of the message assembly then the path would need to be something like this ( not tested ):

Code:

/in:CommandRequestData/in:Command/in:Operation/in:ParameterList//in:StringParameter

or else it needs to start with '//' ( if that's allowed ).
_________________
Before you criticize someone, walk a mile in their shoes. That way you're a mile away, and you have their shoes too.

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