Totally bewildering !!
OK I've got problems using namespaces in predicates.
I tried to isolate this in a small example program but unfortunately the program
works flawlessly :(
So I went to my main application and added some more dianostics.
In summary I have an XML file that contains eg
<ItoXML:Services xmlns=.....>
<ItoXML:Service>
<ItoXML:Name>myService</ItoXML:Name>
</ItoXML:Service>
<ItoXML:Service isSLA="1">
<ItoXML:Name>myService_mySLA_SLA</ItoXML:Name>
</ItoXML:Service>
</ItoXML:Services>
I then modified the big application to use Jaxen to select certain elements.
Then I extract the text against the ItoXML:Name tag (using JDOM
getChildText("Name",namespace)] and display it
as ->name-<
Here are the relevant bits of the log....(dont worry about times other stuff is
going in
(incidentally some of that other stuff involves calling XPath too - could it be
a threading issue - Hmmm)
25/10/02 14:22:48 | Testing //ItoXML:Service[ItoXML:Name = 'myService' ]
25/10/02 14:22:49 | XPath: path //ItoXML:Service[ItoXML:Name = 'myService' ]
25/10/02 14:22:54 | Xpath:Number of nodes = 0
Note the above should be 1 node.
25/10/02 14:22:54 | Testing //ItoXML:Service[ItoXML:Name != 'myService' ]
25/10/02 14:22:54 | XPath: path //ItoXML:Service[ItoXML:Name != 'myService' ]
25/10/02 14:22:54 | Xpath:Number of nodes = 2
25/10/02 14:22:54 | ->myService<-
25/10/02 14:22:54 | ->myService_mySLA_SLA<-
Again it should be just the latter node.
25/10/02 14:22:54 | Testing //ItoXML:Service[@isSLA = '1']
25/10/02 14:22:54 | XPath: path //ItoXML:Service[@isSLA = '1']
25/10/02 14:22:54 | ->myService_mySLA_SLA<-
25/10/02 14:22:54 | Testing //ItoXML:Service[not(@isSLA)]
25/10/02 14:22:54 | XPath: path //ItoXML:Service[not(@isSLA)]
25/10/02 14:22:54 | Xpath:Number of nodes = 1
25/10/02 14:22:54 | ->myService<-
25/10/02 14:22:54 | Testing //ItoXML:Service/ItoXML:Name
25/10/02 14:22:54 | XPath: path //ItoXML:Service/ItoXML:Name
25/10/02 14:22:54 | Xpath:Number of nodes = 2
25/10/02 14:22:54 | ->null<-
25/10/02 14:22:54 | ->null<-
These nulls are OK because the XPath is not selecting Service items.
NOW for good measure I modified my test program to read the same input file and
got the following
(correct) output ...
$ java -classpath ".;.\\jaxen-full.jar;.\\jdom.jar;.\\saxpath.jar" q
Testing //ItoXML:Service
Number of nodes = 2
Testing //ItoXML:Service[@isSLA = '1']
Number of nodes = 1
Testing //ItoXML:Service[not(@isSLA)]
Number of nodes = 1
Testing //ItoXML:Service[ItoXML:Name = 'myService']
Number of nodes = 1
Testing //ItoXML:Service[ItoXML:Name != 'myService']
Number of nodes = 1
So it seems more & more like some conflicting library problem. The application
is running under
Tomcat 3.1.1 / Java 1.4.1 NT where do I start!!!!
Lordy
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