WSDL document object generated by AxisServer can not be read successfully using
WSDL4J API
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Key: AXIS-2132
URL: http://issues.apache.org/jira/browse/AXIS-2132
Project: Apache Axis
Type: Bug
Components: WSDL processing
Versions: 1.2 Beta, 1.2RC1, 1.2RC2, 1.2RC3, 1.2
Environment: Testing on windows 2000, tomcat 5.0.28 and 5.5.4, apache axis
beta 2 and 1.2 GA
Reporter: xiao-fei song
Priority: Critical
Our product relies on the feature that AxisServer can return WSDL document
which we can process. Basically we do like below:
AxisServer engine.generateWSDL(msgContext);
Document wsdlDoc = (Document) msgContext.getProperty("WSDL");
And, the wsdlDoc is the org.w3c.dom.Document type which is what we want. And
we have a simple class which processes the wsdl document like below:
public class WSDLUtils {
private static WSDLReader _wsdlReader = null;
public WSDLUtils()
throws WSDLException {
if (_wsdlReader == null) {
WSDLFactory factory = WSDLFactory.newInstance();
_wsdlReader = factory.newWSDLReader();
}
}
public WSDLReader getWSDLReader() {
return _wsdlReader;
}
public Definition getWSDLDefinition(Document wsdlDoc)
throws WSDLException {
WSDLReader reader = getWSDLReader();
return reader.readWSDL(null, wsdlDoc);
}
}
And everytime we run this, we get the exception like this:
July21 11:42:45 2005: [Thread-18] java.lang.IllegalArgumentException: local
part cannot be "null" when creating a QName
July21 11:42:45 2005: [Thread-18] at
javax.xml.namespace.QName.<init>(QName.java:123)
July21 11:42:45 2005: [Thread-18] at
javax.xml.namespace.QName.<init>(QName.java:89)
July21 11:42:45 2005: [Thread-18] at
com.ibm.wsdl.util.xml.QNameUtils.newQName(Unknown Source)
July21 11:42:45 2005: [Thread-18] at
com.ibm.wsdl.xml.WSDLReaderImpl.parseTypes(Unknown Source)
July21 11:42:45 2005: [Thread-18] at
com.ibm.wsdl.xml.WSDLReaderImpl.parseDefinitions(Unknown Source)
July21 11:42:45 2005: [Thread-18] at
com.ibm.wsdl.xml.WSDLReaderImpl.readWSDL(Unknown Source)
July21 11:42:45 2005: [Thread-18] at
com.ibm.wsdl.xml.WSDLReaderImpl.readWSDL(Unknown Source)
July21 11:42:45 2005: [Thread-18] at
com.ibm.wsdl.xml.WSDLReaderImpl.readWSDL(Unknown Source)
July21 11:42:45 2005: [Thread-18] at
org.apache.axis.transport.http.QSWSDLHandler.invoke(QSWSDLHandler.java:83)
July21 11:42:45 2005: [Thread-18] at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
July21 11:42:45 2005: [Thread-18] at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
July21 11:42:45 2005: [Thread-18] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
July21 11:42:45 2005: [Thread-18] at
java.lang.reflect.Method.invoke(Method.java:324)
July21 11:42:45 2005: [Thread-18] at
org.apache.axis.transport.http.AxisServlet.processQuery(AxisServlet.java:1310)
July21 11:42:45 2005: [Thread-18] at
org.apache.axis.transport.http.AxisServlet.doGet(AxisServlet.java:261)
July21 11:42:45 2005: [Thread-18] at
javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
July21 11:42:45 2005: [Thread-18] at
org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:373)
July21 11:42:45 2005: [Thread-18] at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
So I decided to test on axis itself and after modified
org.apache.axis.transport.http.QSWSDLHandler#invoke() method add lines like
below (line 74)
try {
//beginning of test
WSDLFactory wsdlFactory = WSDLFactory.newInstance();
WSDLReader wsdlReader = wsdlFactory.newWSDLReader();
wsdlReader.setFeature("javax.wsdl.verbose", true);
Definition definition = wsdlReader.readWSDL(null, wsdlDoc);
System.out.println("definition = " + definition);
//end of test
} catch (Exception e) {
e.printStackTrace();
}
And compile axis and test http://localhost:8080/axis/services/AdminService?wsdl
to invoke the method above, and I saw exactly the same exception in the
console, which means that the wsdl document object returned by
AxisServer.generateWSDL() can not be processed by WSDL4J API.
Couple of others:
1. the tests failed in 1.2 beta2 and 1.2GA, so it should not be a problem of
WSDL4J
2. http://localhost:8080/axis/services/Version?wsdl works okay in beta and GA
3. I wrote test case like below:
public static Definition testA() {
Definition definition = null;
try {
String filename = "d:/dl/UojDocumentService.xml";
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
/*note*/ dbf.setNamespaceAware(true);
DocumentBuilder db = dbf.newDocumentBuilder();
FileInputStream fis = new FileInputStream(new File(filename));
InputSource inp = new InputSource(fis);
Document doc = db.parse(inp);
System.out.println("doc = " + doc);
WSDLFactory wsdlFactory = WSDLFactory.newInstance();
WSDLReader wsdlReader = wsdlFactory.newWSDLReader();
definition = wsdlReader.readWSDL(null, doc);
System.out.println("definition = " + definition);
} catch (Exception e) {
e.printStackTrace();
}
return definition;
}
After saving the wsdl as the xml file on disk, the code above runs okay. But if
I didn't run /*note*/ dbf.setNamespaceAware(true); I get similar exception as
above.
3. running WSDL4J process the wsdl online runs okay so the problem has to be in
the docuemnt object rather than the xml document.
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