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List:       xmlbeans-dev
Subject:    [jira] Created: (XMLBEANS-266) javax.xml.stream.XMLStreamException:
From:       "Wesley King (JIRA)" <xmlbeans-dev () xml ! apache ! org>
Date:       2006-04-13 20:48:04
Message-ID: 31805578.1144961284266.JavaMail.jira () brutus
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javax.xml.stream.XMLStreamException: problem accessing the parser
-----------------------------------------------------------------

         Key: XMLBEANS-266
         URL: http://issues.apache.org/jira/browse/XMLBEANS-266
     Project: XMLBeans
        Type: Bug

  Components: Binding  
    Versions: Version 2.1    
 Environment: Windows XP, Eclipse w/ MyEclipse plugin, Tomcat
    Reporter: Wesley King


I have an soap message receiver class that extends AbstractInOutSyncMessageReceiver.  \
I use this class to handle my web service requests.  Inside the \
invokeBusinessLogic(MessageContext, MessageContext) method, I am attempting to parse \
the envelope header first and then the body.  The header contains an element called \
MultiSpeakMsgHeader and the body contains an element called PingURL.  All the XML \
objects were created using XMLBeans.  The web service works fine if I only attempt to \
parse the body's first element creating the PingURLDocument.  If I try to parse the \
header's first element creating the MultiSpeakMsgHeaderDocument, that works fine, but \
right afterwards if I try to parse the body's first element I get an exception: \
XMLStreamException: problem accessing parser.

Am I doing something wrong?  If so, any help would be appreciated.  If not, is this a \
known bug/issue?  And is there a work around?

Include below are three files that may or may not be helpfull.  (1) The \
AbstractInOutSyncMessageReceiver java file.  (2) The skeleton java file that handles \
the service.  And (3) the xml I'm sending to the server.  As I mentioned above, \
everything works fine if I don't attempt to read the header.  As a side note, the \
reason I need to read the header is to check for a valid user id and password.  If \
there is another way to check/validate header information, I'm open to suggestions.

=====================================
=====================================
(3) XML Request being sent
---------------------------------------
<?xml version='1.0' encoding='utf-8'?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope" />
  <soapenv:Header>
    <MultiSpeakMsgHeader UserID="test" Pwd="test" \
xmlns="http://www.multispeak.org/Version_3.0" />  </soapenv:Header>
  <soapenv:Body>
    <PingURL xmlns="http://www.multispeak.org/Version_3.0" />
  </soapenv:Body>
</soapenv:Envelope>
=====================================
=====================================

=====================================
=====================================
(2) Java class to handle request
--------------------------------------------
package com.daffron.multispeak;

import java.lang.reflect.Method;
import java.util.Calendar;
import java.util.GregorianCalendar;

import org.apache.xmlbeans.XmlObject;
import org.multispeak.version30.*;

public class MultispeakSoapSkeleton {

	public PingURLResponseDocument PingURL(PingURLDocument requestDoc) {

		PingURLResponseDocument pingURLRespDoc = null;
		try {
			pingURLRespDoc = (PingURLResponseDocument) \
getReturnObject(PingURLResponseDocument.class);  }
		catch (Exception e) {
			System.out.println("Failed to create return object for PingURL request.");
		}
		if (pingURLRespDoc != null) {
			pingURLRespDoc.addNewPingURLResponse();
		}

		return pingURLRespDoc;
	}

	protected XmlObject getReturnObject(Class type) throws Exception {
		Method creatorMethod = null;

		if (XmlObject.class.isAssignableFrom(type)) {
			Class[] declaredClasses = type.getDeclaredClasses();

			for (int i = 0; i < declaredClasses.length; i++) {
				Class declaredClass = declaredClasses[i];

				if (declaredClass.getName().endsWith("$Factory")) {
					creatorMethod = declaredClass.getMethod("newInstance", null);

					break;
				}
			}
		}

		if (creatorMethod != null) {
			return (XmlObject) creatorMethod.invoke(null, null);
		}
		else {
			throw new Exception("Creator not found!");
		}
	}
}

=====================================
=====================================

=====================================
=====================================
(1) AbstractInOutSyncMessageReceiver java file
-----------------------------------------------------------------
package com.daffron.multispeak;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import javax.xml.namespace.QName;

import org.apache.axis2.*;
import org.apache.axis2.context.*;
import org.apache.axis2.description.*;
import org.apache.axis2.engine.*;
import org.apache.axis2.om.*;
import org.apache.axis2.om.impl.OMNodeEx;
import org.apache.axis2.om.impl.llom.builder.StAXOMBuilder;
import org.apache.axis2.receivers.*;
import org.apache.axis2.soap.*;
import org.apache.axis2.util.StreamWrapper;
import org.apache.xmlbeans.XmlObject;
import org.multispeak.version30.*;

/**
 * 
 */
public class MultispeakSoapMessageReceiver extends AbstractInOutSyncMessageReceiver {
	//
	private static QName[] qNameArray = {};

	public void invokeBusinessLogic(MessageContext msgContext, MessageContext \
newMsgContext) throws AxisFault {  try {
			// get the implementation class for the Web Service
			Object obj = getTheImplementationObject(msgContext);

			//Inject the Message Context if it is asked for
			DependencyManager.configureBusinessLogicProvider(obj, msgContext, newMsgContext);

			MultispeakSoapSkeleton skel = (MultispeakSoapSkeleton) obj;

			//Out Envelop
			SOAPEnvelope envelope = null;

			//Find the axisOperation that has been set by the Dispatch phase.
			AxisOperation op = msgContext.getOperationContext().getAxisOperation();

			if (op == null) {
				throw new AxisFault(
						"Operation is not located, if this is doclit style the SOAP-ACTION should \
specified via the SOAP Action to use the RawXMLProvider");  }

			String methodName;

			if ((op.getName() != null) & ((methodName = op.getName().getLocalPart()) != null)) \
{  SOAPEnvelope tempEnv = msgContext.getEnvelope();

				// NOTE: validate header 
				SOAPHeader header = tempEnv.getHeader();
				if (header != null) {
					OMElement headerE = header.getFirstElement();
					validateHeader((MultiSpeakMsgHeaderDocument) fromOM(headerE, \
MultiSpeakMsgHeaderDocument.class));  }

				if ("PingURL".equals(methodName)) {
					PingURLResponseDocument respDoc = null;

					//doc style
					respDoc = skel.PingURL((PingURLDocument) \
fromOM(msgContext.getEnvelope().getBody().getFirstElement(),  \
PingURLDocument.class));

					envelope = toEnvelope(getSOAPFactory(msgContext), respDoc);
				}

				newMsgContext.setEnvelope(envelope);
			}
		}
		catch (Exception e) {
			throw AxisFault.makeFault(e);
		}
	}
	
	private OMElement toOM(MultiSpeakMsgHeaderDocument param) {
		StAXOMBuilder builder = new StAXOMBuilder(OMAbstractFactory.getOMFactory(), new \
StreamWrapper(param.newXMLStreamReader()));

		OMElement documentElement = builder.getDocumentElement();

		optimizeContent(documentElement, qNameArray);

		((OMNodeEx) documentElement).setParent(null);

		return documentElement;
	}

	private SOAPEnvelope toEnvelope(SOAPFactory factory, MultiSpeakMsgHeaderDocument \
param) {  SOAPEnvelope envelope = factory.getDefaultEnvelope();
		envelope.getBody().addChild(toOM(param));

		return envelope;
	}

	private boolean validateHeader(MultiSpeakMsgHeaderDocument headerDoc) {
		return true;
	}

	private OMElement toOM(PingURLResponseDocument param) {
		StAXOMBuilder builder = new StAXOMBuilder(OMAbstractFactory.getOMFactory(), new \
StreamWrapper(param.newXMLStreamReader()));

		OMElement documentElement = builder.getDocumentElement();

		optimizeContent(documentElement, qNameArray);

		((OMNodeEx) documentElement).setParent(null);

		return documentElement;
	}

	private SOAPEnvelope toEnvelope(SOAPFactory factory, PingURLResponseDocument param) \
{  SOAPEnvelope envelope = factory.getDefaultEnvelope();
		envelope.getBody().addChild(toOM(param));

		return envelope;
	}

	private OMElement toOM(PingURLDocument param) {
		StAXOMBuilder builder = new StAXOMBuilder(OMAbstractFactory.getOMFactory(), new \
StreamWrapper(param.newXMLStreamReader()));

		OMElement documentElement = builder.getDocumentElement();

		optimizeContent(documentElement, qNameArray);

		((OMNodeEx) documentElement).setParent(null);

		return documentElement;
	}

	private SOAPEnvelope toEnvelope(SOAPFactory factory, PingURLDocument param) {
		SOAPEnvelope envelope = factory.getDefaultEnvelope();
		envelope.getBody().addChild(toOM(param));

		return envelope;
	}

	public XmlObject fromOM(OMElement param, Class type) {
		try {
			if (MultiSpeakMsgHeaderDocument.class.equals(type)) {
				return MultiSpeakMsgHeaderDocument.Factory.parse(param.getXMLStreamReaderWithoutCaching());
  }

			if (PingURLResponseDocument.class.equals(type)) {
				return PingURLResponseDocument.Factory.parse(param.getXMLStreamReaderWithoutCaching());
  }

			if (PingURLDocument.class.equals(type)) {
				return PingURLDocument.Factory.parse(param.getXMLStreamReaderWithoutCaching());
			}
		}
		catch (Exception e) {
			throw new RuntimeException("Data binding error", e);
		}

		return null;
	}

	private void optimizeContent(org.apache.axis2.om.OMElement element, \
javax.xml.namespace.QName[] qNames) {  for (int i = 0; i < qNames.length; i++) {
			markElementsAsOptimized(qNames[i], element);
		}
	}

	private void markElementsAsOptimized(javax.xml.namespace.QName qName, \
org.apache.axis2.om.OMElement rootElt) {  if (rootElt.getQName().equals(qName)) {
			//get the text node and mark it
			org.apache.axis2.om.OMNode node = rootElt.getFirstOMChild();

			if (node.getType() == org.apache.axis2.om.OMNode.TEXT_NODE) {
				((org.apache.axis2.om.OMText) node).setOptimize(true);
			}
		}

		java.util.Iterator childElements = rootElt.getChildElements();

		while (childElements.hasNext()) {
			markElementsAsOptimized(qName, (org.apache.axis2.om.OMElement) \
childElements.next());  }
	}
}

=====================================
=====================================

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