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From "Andre Genser (JIRA)" <axis-...@ws.apache.org>
Subject [jira] Updated: (AXIS-1761) Deserialization of SOAP(document/literal) went wrong because of Introspection Problem
Date Thu, 13 Jan 2005 15:33:17 GMT
     [ http://issues.apache.org/jira/browse/AXIS-1761?page=history ]

Andre Genser updated AXIS-1761:
-------------------------------

    Attachment: eai-wsdl.zip

- Complex WSDL with XML Schemata
- Example SOAP Response and Request

> Deserialization of SOAP(document/literal) went wrong because of Introspection Problem
> -------------------------------------------------------------------------------------
>
>          Key: AXIS-1761
>          URL: http://issues.apache.org/jira/browse/AXIS-1761
>      Project: Axis
>         Type: Bug
>   Components: Serialization/Deserialization
>     Versions: 1.2RC2
>  Environment: Windows XP, JDK 1.4.2_06
>     Reporter: Andre Genser
>     Priority: Critical
>  Attachments: BeanDeserializer.java, eai-wsdl.zip
>
> Deserialization of SOAP(document/literal) went wrong because of Introspection Problem
> We use a WSDL in mode document/literal/wrapped with complex datastructures defined
> by XML schemata. If I send the SOAP request to the SOAP-Server we get a correct
> SOAP Response, but the Deserialization goes wrong. I have modified the BeanDeserializer
> with a work arround. More detailed information is explained later.
> If the logging is switched on the following stacktrace is thrown:
> 12031 [main] ERROR org.apache.axis.client.Call  - Exception:
> org.xml.sax.SAXException: Invalid element in de.d2vodafone.eai.legokias.soapgenerated.ResultDetailsObject
- Status
>         at org.apache.axis.encoding.ser.BeanDeserializer.onStartChild(BeanDeserializer.java:223)
>         at org.apache.axis.encoding.DeserializationContext.startElement(DeserializationContext.java:1031)
>         at org.apache.axis.message.SAX2EventRecorder.replay(SAX2EventRecorder.java:165)
>         at org.apache.axis.message.MessageElement.publishToHandler(MessageElement.java:1140)
>         at org.apache.axis.message.RPCElement.deserialize(RPCElement.java:238)
>         at org.apache.axis.message.RPCElement.getParams(RPCElement.java:386)
>         at org.apache.axis.client.Call.invoke(Call.java:2402)
>         at org.apache.axis.client.Call.invoke(Call.java:2301)
>         at org.apache.axis.client.Call.invoke(Call.java:1758)
>         at de.d2vodafone.eai.legokias.soapgenerated.LegoKiasBindingStub.getCustomerBANDetails(LegoKiasBindingStub.java:6
> 86)
>         at de.d2vodafone.eai.legokias.LegoKiasFacade.getCustomerDetails(LegoKiasFacade.java:86)
>         at de.d2vodafone.eai.legokias.test.GetCustomerBANTest.main(GetCustomerBANTest.java:35)
>         
> The problem is the detection of getter/setter. The java.beans.Introspection class is
used to fill the map with detailed type
> definition. The name of the PropertyDescription class is used as the key for these Map.
I detected the following
> getStatus() -> status
> getBAN() -> BAN
> In the WSDL I defined them as Status and BAN. If now the BeanDeserializer tries to deserialize
the data in the
> method "onStartChild()", it first tries to get detailed property definition. Because
of the literal-Mode
> the propertyMap is used to get the information. The localName is used as the key for
the map.
> In this special case the localName is "Status" but the entry in the map is registired
as "status".
> The first letter is low sensitive. Hence an exception is thrown because with "Status"
no entry
> in found.
> I implemented a work around, that isn't really good but it works:
>         if (typeDesc != null) {       
>             // Lookup the name appropriately (assuming an unqualified
>             // name for SOAP encoding, using the namespace otherwise)
>             String fieldName = typeDesc.getFieldNameForElement(elemQName, 
>                                                                isEncoded);
>             propDesc = (BeanPropertyDescriptor)propertyMap.get(fieldName);
>             fieldDesc = typeDesc.getFieldByName(fieldName); 
>         }
>         if (propDesc == null) {
>             // look for a field by this name.
>             propDesc = (BeanPropertyDescriptor) propertyMap.get(localName);
> 			// *************************************************************
> 			// MY WORKARROUND
> 			// *************************************************************
> 			
> 			if(propDesc == null) {
> 				String k = localName.substring(0,1).toLowerCase() + localName.substring(1,localName.length());
> 	            propDesc = (BeanPropertyDescriptor) propertyMap.get(k);		
> 			}
>             
>         }
> The follwing class shows the result of the Introspection class
> package de.d2vodafone.eai.legokias.test;
> import java.beans.IntrospectionException;
> import java.beans.Introspector;
> import java.beans.PropertyDescriptor;
> public class IntrospectionTest {
> 	private int status;
> 	private String BAN;
> 	
> 	
> 	
> 	public static void main(String[] args) {
> 		try {
> 			PropertyDescriptor[] props = Introspector.getBeanInfo(IntrospectionTest.class).getPropertyDescriptors();
> 				int len = props.length;
> 				
> 			for (int i=0; i < len; i++ ) {
> 				System.out.println(props[i].getName());
> 			}
> 		} catch (IntrospectionException e) {
> 			// TODO Auto-generated catch block
> 			e.printStackTrace();
> 		}
> 	}
> 	public String getBAN() {
> 		return BAN;
> 	}
> 	public void setBAN(String ban) {
> 		BAN = ban;
> 	}
> 	public int getStatus() {
> 		return status;
> 	}
> 	public void setStatus(int status) {
> 		this.status = status;
> 	}
> }
> RESULT:
> BAN
> status
> I hope the my information helps you to fix the problem. I think my workarround costs
tomuch time at runtime.
> With kind regards!
> Andre Genser

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