Mediator - convert XSD datetime to SQL date value

Question

Fusion 11g, JDev 11.1.1, W server 2008
Hi there,
using JDev we've defined a DB adapter (towards an ORACLE schema), which basically serves two operations: INSERT and SELECT. On the DB table we've got a DATE_TIME while on on the other side we've defined a wsdl where the INPUT operation takes as parameter an XSD DATETIME value.
The values have different structures and so we've started to play with the "Assign Values" function on the Mediator component, unfortunately without any success.
Right now our expression is the following
from
ora:formatDate($in.newEventParam/newEventParam/ns:executionTime,"dd-MMM-yy")
to
$out.LogCollection/top:LogCollection/top:Log/top:when
As first question I would like to ask you if our approach is correct and in that case what's wrong with our expression as we tried to use the same pattern as we use in SQL.
Second, we performed some tests using the EM console. On test failure it shown a stack trace saying only that there was a problem performing a transformation. That's a bit too less, especially when transformation is done on large amount of values. Is there any way to increase trace level and get further details on which transformation didn't work out?
Thanks in advance
Alessandro Ilardo

Answer 1

Thanks Eric for the link. That helped me to get further details about the issue but unfortunately not enough to locate the cause.
So here I definitely have an issue with the composite application and perhaps another one on getting a SOAP trace from the Mediator log. Even with the finest log level enabled I couldn't see what the Mediator receives from outside.
The first problem instead, seams to be a missing SOAP parameter, I assume that's why on the log I see this
[WEBSERVICE.name: AuditService] [J2EE_APP.name: soa-infra] [composite_instance_id: 40011] Transformation failed[[
oracle.tip.mediator.infra.exception.MediatorException: ORAMED-01203:[No Part]No part exist with name "newEventParam" in source message.Possible Fix:Review the transformation definition in mplan.Contact Oracle Support if the error cannot be fixed.
     at oracle.tip.mediator.service.transformation.XSLTransformer.getPartDocument(XSLTransformer.java:221)
[J2EE_APP.name: soa-infra] [composite_instance_id: 40011] Got an exception: java.lang.NullPointerException[[
oracle.tip.mediator.infra.exception.MediatorException: ORAMED-01201:[Error in transform operation]Error occurred while transforming payload.Possible Fix:Review the XSL or source payload. Either the XSL defined does not match with the payload or payload is invalid.
In this routing there are basically 2 things that take place, an XSL mapping and an Assign value expression.
Everything is goes fine until we perform a test from the EM, there we get the error.
Unless someone has further tips on this issue I am considering to make a call from SOAPUI and place WS Monitor in the middle to make sure if the mistake is in the application or platform.
External WSDL
<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:tns="http://xml.virtual-lab.eu/schema/poc-soa/audit/wsdl" xmlns:ns="http://xml.virtual-lab.eu/schema/poc-soa/audit/def" targetNamespace="http://xml.virtual-lab.eu/schema/poc-soa/audit/wsdl">
     <wsdl:types>
          <schema xmlns="http://www.w3.org/2001/XMLSchema">
               <import namespace="http://xml.virtual-lab.eu/schema/poc-soa/audit/def" schemaLocation="xsd/AuditParamsDef.xsd"/>
          </schema>
     </wsdl:types>
     <wsdl:message name="addNewRequestMessage">
          <wsdl:part name="newEventParam" type="ns:add"/>
     </wsdl:message>
     <wsdl:message name="searchRequestMessage">
          <wsdl:part name="searchParams" type="ns:search"/>
     </wsdl:message>
     <wsdl:message name="searchResponseMessage">
          <wsdl:part name="returnParam" type="ns:eventObj"/>
     </wsdl:message>
     <wsdl:portType name="AuditPortType">
          <wsdl:operation name="addNewEvent">
               <wsdl:input message="tns:addNewRequestMessage"/>
          </wsdl:operation>
          <wsdl:operation name="searchForEvents">
               <wsdl:input message="tns:searchRequestMessage"/>
               <wsdl:output message="tns:searchResponseMessage"/>
          </wsdl:operation>
     </wsdl:portType>
     <wsdl:binding name="AuditBinding" type="tns:AuditPortType">
          <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
          <wsdl:operation name="addNewEvent">
               <soap:operation soapAction="urn:#addNewEvent"/>
               <wsdl:input>
                    <soap:body use="literal"/>
               </wsdl:input>
          </wsdl:operation>
          <wsdl:operation name="searchForEvents">
               <soap:operation soapAction="urn:#searchForEvents"/>
               <wsdl:input>
                    <soap:body use="literal"/>
               </wsdl:input>
               <wsdl:output>
                    <soap:body use="literal"/>
               </wsdl:output>
          </wsdl:operation>
     </wsdl:binding>
     <!--
     <wsdl:service name="AuditService">
          <wsdl:port name="AuditPort" binding="tns:AuditBinding" />
     </wsdl:service>
-->
</wsdl:definitions>
XSL
<?xml version="1.0" encoding="UTF-8" ?>
<?oracle-xsl-mapper
<!-- SPECIFICATION OF MAP SOURCES AND TARGETS, DO NOT MODIFY. -->
<mapSources>
<source type="WSDL">
<schema location="../AuditService.wsdl"/>
<rootElement name="newEventParam" namespace=""/>
<rootElementDatatype name="add" namespace="http://xml.virtual-lab.eu/schema/poc-soa/audit/def"/>
</source>
</mapSources>
<mapTargets>
<target type="WSDL">
<schema location="../AuditBackEndService.wsdl"/>
<rootElement name="LogCollection" namespace="http://xmlns.oracle.com/pcbpel/adapter/db/top/AuditBackEndService"/>
</target>
</mapTargets>
<!-- GENERATED BY ORACLE XSL MAPPER 11.1.1.0.0(build 090618.1440.5219) AT [WED DEC 02 22:51:43 CET 2009]. -->
?>
<xsl:stylesheet version="1.0"
xmlns:top="http://xmlns.oracle.com/pcbpel/adapter/db/top/AuditBackEndService"
xmlns:xpath20="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.Xpath20"
xmlns:bpws="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
xmlns:mhdr="http://www.oracle.com/XSL/Transform/java/oracle.tip.mediator.service.common.functions.MediatorExtnFunction"
xmlns:oraext="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.ExtFunc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:dvm="http://www.oracle.com/XSL/Transform/java/oracle.tip.dvm.LookupValue"
xmlns:hwf="http://xmlns.oracle.com/bpel/workflow/xpath"
xmlns:tns="http://xmlns.oracle.com/pcbpel/adapter/db/SOA-POC/AuditService/AuditBackEndService%2F"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:med="http://schemas.oracle.com/mediator/xpath"
xmlns:ids="http://xmlns.oracle.com/bpel/services/IdentityService/xpath"
xmlns:ns="http://xml.virtual-lab.eu/schema/poc-soa/audit/def"
xmlns:xdk="http://schemas.oracle.com/bpel/extension/xpath/function/xdk"
xmlns:xref="http://www.oracle.com/XSL/Transform/java/oracle.tip.xref.xpath.XRefXPathFunctions"
xmlns:plt="http://schemas.xmlsoap.org/ws/2003/05/partner-link/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
xmlns:ora="http://schemas.oracle.com/xpath/extension"
xmlns:socket="http://www.oracle.com/XSL/Transform/java/oracle.tip.adapter.socket.ProtocolTranslator"
exclude-result-prefixes="xsi xsl ns xsd top tns plt wsdl xpath20 bpws mhdr oraext dvm hwf med ids xdk xref ora socket">
<xsl:template match="/">
<top:LogCollection>
<top:Log>
<top:who>
<xsl:value-of select="/newEventParam/ns:fromUser"/>
</top:who>
<top:when/>
<top:whichClient>
<xsl:value-of select="/newEventParam/ns:usingClient"/>
</top:whichClient>
<top:whichSys>
<xsl:value-of select="/newEventParam/ns:onSys/@ns:which"/>
</top:whichSys>
<top:ipClient>
<xsl:value-of select="/newEventParam/ns:fromIP"/>
</top:ipClient>
<top:wsOperation>
<xsl:value-of select="/newEventParam/ns:callingWS_Operation"/>
</top:wsOperation>
</top:Log>
</top:LogCollection>
</xsl:template>
</xsl:stylesheet>
Internal WSDL
<?xml version="1.0" encoding="UTF-8"?>
<toplink:object-persistence version="Oracle TopLink - 11g Release 1 (11.1.1.1.0) (Build 090527)" xmlns:opm="http://xmlns.oracle.com/ias/xsds/opm" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:toplink="http://xmlns.oracle.com/ias/xsds/toplink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<opm:name>AuditBackEndService-OR</opm:name>
<opm:class-mapping-descriptors>
<opm:class-mapping-descriptor xsi:type="toplink:object-relational-class-mapping-descriptor">
<opm:class>AuditBackEndService.Log</opm:class>
<opm:alias>LOG</opm:alias>
<opm:primary-key>
<opm:field table="LOG" name="ID" xsi:type="opm:column"/>
</opm:primary-key>
<opm:events xsi:type="toplink:event-policy"/>
<opm:querying xsi:type="toplink:query-policy">
<opm:queries>
<opm:query name="AuditBackEndServiceSelect" xsi:type="toplink:read-all-query">
<opm:criteria operator="and" xsi:type="toplink:logic-expression">
<toplink:left operator="and" xsi:type="toplink:logic-expression">
<toplink:left operator="equal" xsi:type="toplink:relation-expression">
<toplink:left name="whichSys" xsi:type="toplink:query-key-expression">
<toplink:base xsi:type="toplink:base-expression"/>
</toplink:left>
<toplink:right xsi:type="toplink:parameter-expression">
<toplink:parameter name="sys" xsi:type="opm:column"/>
</toplink:right>
</toplink:left>
<toplink:right operator="greaterThanEqual" xsi:type="toplink:relation-expression">
<toplink:left name="when" xsi:type="toplink:query-key-expression">
<toplink:base xsi:type="toplink:base-expression"/>
</toplink:left>
<toplink:right xsi:type="toplink:parameter-expression">
<toplink:parameter name="fromWhen" xsi:type="opm:column"/>
</toplink:right>
</toplink:right>
</toplink:left>
<toplink:right operator="lessThanEqual" xsi:type="toplink:relation-expression">
<toplink:left name="when" xsi:type="toplink:query-key-expression">
<toplink:base xsi:type="toplink:base-expression"/>
</toplink:left>
<toplink:right xsi:type="toplink:parameter-expression">
<toplink:parameter name="toWhen" xsi:type="opm:column"/>
</toplink:right>
</toplink:right>
</opm:criteria>
<opm:arguments>
<opm:argument name="sys">
<opm:type>java.lang.String</opm:type>
</opm:argument>
<opm:argument name="fromWhen">
<opm:type>java.lang.String</opm:type>
</opm:argument>
<opm:argument name="toWhen">
<opm:type>java.lang.String</opm:type>
</opm:argument>
</opm:arguments>
<toplink:reference-class>AuditBackEndService.Log</toplink:reference-class>
<toplink:container xsi:type="toplink:list-container-policy">
<toplink:collection-type>java.util.Vector</toplink:collection-type>
</toplink:container>
</opm:query>
</opm:queries>
</opm:querying>
<opm:attribute-mappings>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>id</opm:attribute-name>
<opm:field table="LOG" name="ID" xsi:type="opm:column"/>
<toplink:attribute-classification>java.math.BigDecimal</toplink:attribute-classification>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>who</opm:attribute-name>
<opm:field table="LOG" name="WHO" xsi:type="opm:column"/>
<toplink:attribute-classification>java.lang.String</toplink:attribute-classification>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>when</opm:attribute-name>
<opm:field table="LOG" name="WHEN" xsi:type="opm:column"/>
<toplink:attribute-classification>java.sql.Timestamp</toplink:attribute-classification>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>whichClient</opm:attribute-name>
<opm:field table="LOG" name="WHICH_CLIENT" xsi:type="opm:column"/>
<toplink:attribute-classification>java.lang.String</toplink:attribute-classification>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>whichSys</opm:attribute-name>
<opm:field table="LOG" name="WHICH_SYS" xsi:type="opm:column"/>
<toplink:attribute-classification>java.lang.String</toplink:attribute-classification>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>ipClient</opm:attribute-name>
<opm:field table="LOG" name="IP_CLIENT" xsi:type="opm:column"/>
<toplink:attribute-classification>java.lang.String</toplink:attribute-classification>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>wsOperation</opm:attribute-name>
<opm:field table="LOG" name="WS_OPERATION" xsi:type="opm:column"/>
<toplink:attribute-classification>java.lang.String</toplink:attribute-classification>
</opm:attribute-mapping>
</opm:attribute-mappings>
<toplink:descriptor-type>independent</toplink:descriptor-type>
<toplink:caching>
<toplink:cache-type>weak-reference</toplink:cache-type>
<toplink:always-refresh>true</toplink:always-refresh>
</toplink:caching>
<toplink:remote-caching>
<toplink:cache-type>weak-reference</toplink:cache-type>
</toplink:remote-caching>
<toplink:instantiation/>
<toplink:copying xsi:type="toplink:instantiation-copy-policy"/>
<toplink:tables>
<toplink:table name="LOG"/>
</toplink:tables>
<toplink:structure>structureName</toplink:structure>
</opm:class-mapping-descriptor>
</opm:class-mapping-descriptors>
<toplink:login xsi:type="toplink:database-login">
<toplink:platform-class>oracle.toplink.platform.database.oracle.Oracle9Platform</toplink:platform-class>
<toplink:user-name></toplink:user-name>
<toplink:connection-url>null</toplink:connection-url>
</toplink:login>
</toplink:object-persistence>