[udig-devel] OSMM GML loading - null pointer

[Vince Darley]

Hmm, I've removed all vestiges of Eclipse by 
running this as a junit test rather than eclipse 
junit-plugin test.  This removes the bundle 
resource stuff but now hits a null pointer:

Thread [main] (Suspended (exception NullPointerException))
         Schemas.getImports(XSDSchema) line: 819
         ParserHandler.startElement(String, 
String, String, Attributes) line: 324
         SAXParser(AbstractSAXParser).startElement(QName, 
XMLAttributes, Augmentations) line: not available
         XMLNSDocumentScannerImpl.scanStartElement() line: not available
         XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook() 
line: not available
         XMLNSDocumentScannerImpl$NSContentDispatcher(XMLDocumentFragmentScannerImpl$FragmentContentDispatcher).dispatch(boolean) 
line: not available
         XMLNSDocumentScannerImpl(XMLDocumentFragmentScannerImpl).scanDocument(boolean) 
line: not available
         XIncludeAwareParserConfiguration(XML11Configuration).parse(boolean) 
line: not available
         XIncludeAwareParserConfiguration(XML11Configuration).parse(XMLInputSource) 
line: not available
         SAXParser(XMLParser).parse(XMLInputSource) line: not available
         SAXParser(AbstractSAXParser).parse(InputSource) 
line: not available
         Parser.parse(InputSource) line: 184
         Parser.parse(InputStream) line: 146
         OSmmSampleParsingTest.testFileReading() line: 84
         NativeMethodAccessorImpl.invoke0(Method, 
Object, Object[]) line: not available [native method]
         NativeMethodAccessorImpl.invoke(Object, Object[]) line: 39
         DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 25
         Method.invoke(Object, Object...) line: 597
         OSmmSampleParsingTest(TestCase).runTest() line: 154
         OSmmSampleParsingTest(TestCase).runBare() line: 127
         TestResult$1.protect() line: 106
         TestResult.runProtected(Test, Protectable) line: 124
         TestResult.run(TestCase) line: 109
         OSmmSampleParsingTest(TestCase).run(TestResult) line: 118
         TestSuite.runTest(Test, TestResult) line: 208
         TestSuite.run(TestResult) line: 203
         JUnit3TestReference.run(TestExecution) line: 128
         TestExecution.run(ITestReference[]) line: 38
         RemoteTestRunner.runTests(String[], 
String, TestExecution) line: 460
         RemoteTestRunner.runTests(TestExecution) line: 673
         RemoteTestRunner.run() line: 386
         RemoteTestRunner.main(String[]) line: 196

Is that any easier?

Vince.

At 18:10 11/09/2007, Jesse Eichar wrote:
>I don't know how the bundle resource stuff got in there it is the
>URLs eclipse uses.  you can normally resolve the URLs using the
>FileLocator class...
>
>Jesse
>
>On Sep 11, 2007, at 9:57 AM, Vince Darley wrote:
>
>>If I manually edit two of the .xsd files to insert schemaLocations
>>in 2 places each:
>>
>>         <import namespace="http://www.opengis.net/gml"
>>schemaLocation="gml.xsd"/>
>>         <import namespace="http://www.w3.org/1999/xlink"
>>schemaLocation="xlink.xsd"/>
>>
>>then things get a bit further, but I then get an error:
>>
>>java.net.UnknownHostException: bundleresource
>>
>>due to an attempt to open an input stream on this URL:
>>
>>file://bundleresource://74/cache/www.w3.org/2001/datatypes.dtd
>>
>>any thoughts on that?
>>
>>Vince.
>>
>>...and I thought xml was supposed to make things easy.
>>
>>At 17:19 11/09/2007, Justin Deoliveira wrote:
>>>Hi Guys,
>>>
>>>Sorry to jump in late. Seems like you are making progress. This
>>>import
>>>seems strange to me:
>>>
>>><import namespace="http://www.opengis.net/gml"/>
>>>
>>>Since it does not have any schemaLocation attribute? Which is most
>>>likely the source of the null pointer exception. Since it is a
>>>"well-known" namespace / schema to the parser, simply putting
>>>schemaLocation="gml.xsd" should do the trick.
>>>
>>>-Justin
>>>
>>>Vince Darley wrote:
>>> > At 11:05 11/09/2007, Gabriel Roldán wrote:
>>> >> Configuration configuration = new
>>> >> ApplicationSchemaConfiguration(namespace,
>>> >> schemaLocation);
>>> >> Parser parser = new Parser( configuration );
>>> >
>>> > Now that seems to work quite a lot better, except we hit null
>>>pointer
>>> > exceptions due to calls to 'resolveSchemaLocation':
>>> >
>>> > public String resolveSchemaLocation(XSDSchema schema, String
>>>uri, String
>>> > location) {
>>> >
>>> > where:
>>> >    uri          "http://www.opengis.net/gml"
>>> >    location    null
>>> >
>>> > It tries to look for a file in the directory that we supplied on
>>> > construction, but with 'null' as a file name.
>>> >
>>> > This seems to be driven/triggered by lines like this:
>>> >
>>> >         <import namespace="http://www.opengis.net/gml"/>
>>> >
>>> > in the schema being parsed.
>>> >
>>> > any idea how to avoid that problem?
>>> >
>>> > Vince.
>>> >
>>> >
>>> > !DSPAM:4007,46e671d1174873362379201!
>>> >
>>>
>>>
>>>--
>>>Justin Deoliveira
>>>The Open Planning Project
>>>http://topp.openplans.org
>>>
>>>
>>>
>>>--
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>>>08/09/2007 13:24
>>
>>_______________________________________________
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>>http://udig.refractions.net
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>
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>
>
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