How do I get the WebLogic server to use the XMLRegistry?

Question

I'm using WebLogic 7.0.2, and I want to use the Apache TransformerFactory and DocumentBuilderFactory
instead of the default weblogic.* classes. I've found the documentation, where
I define an XML Registry as follows (snippet from my config.xml)...
<Server ListenAddress="####" ListenPort="####" Name="myserver"
NativeIOEnabled="true" ServerVersion="7.0.2.0"
StdoutEnabled="true" StdoutSeverityLevel="8"
StuckThreadMaxTime="14400"
XMLEntityCache="XMLCacheMBean_myserver" XMLRegistry="CT XML Registry">
<COM Name="myserver"/>
<ExecuteQueue Name="default" ThreadCount="15"/>
<IIOP Name="myserver"/>
<JTAMigratableTarget Cluster="" Name="myserver" UserPreferredServer="myserver"/>
<JTARecoveryService Name="myserver"/>
<KernelDebug Name="myserver"/>
<Log FileName="myserver/myserver.log" Name="myserver"/>
<SSL Enabled="true" HostnameVerificationIgnored="true"
ListenPort="###" Name="myserver"
ServerCertificateFileName="democert.pem"
ServerPrivateKeyAlias="demokey" ServerPrivateKeyPassPhrase="{3DES}gAuVwsR68oAlLdIfO1PAtw=="/>
<ServerDebug Name="myserver"/>
<ServerStart Name="myserver"/>
<WebServer DefaultWebApp="DefaultWebApp"
LogFileName="myserver/access.log" LoggingEnabled="true" Name="myserver"/>
</Server>
<XMLEntityCache Name="XMLCacheMBean_myserver"/>
<XMLRegistry
DocumentBuilderFactory="org.apache.xerces.jaxp.DocumentBuilderFactoryImpl"
Name="CT XML Registry"
SAXParserFactory="org.apache.xerces.jaxp.SAXParserFactoryImpl"
TransformerFactory="org.apache.xalan.processor.TransformerFactoryImpl"
WhenToCache="cache-on-reference"/>
I've played aorund with xercesImpl being in and out of classpaths, etc. But no
matter what I do, calls to TransformerFactory.newInstance creates an instance
of weblogic.xml.jaxp.RegistrySAXTransformerFactory and DocumentBuilderFactory.newInstance()
creates an instance of weblogic.xml.jaxp.RegistryDocumentBuilderFactory.
I don't want to use these classes, and supposedly I can control which classes
I will use, but it's not working for me. Has anyone been able to get this working?
Is there anything else that I'm missing?
Thanks,
Ed

Answer 1

I was unable to use the XMLRegistry touse the Xerces2 libraries with WebLogic 7.
I did find in WebLogic 7 doco that the latest release of Xerces that it would
internally support was 1.4.4 (http://e-docs.bea.com/wls/docs70/xml/xml_admin.html#1066271).
If I wanted to use this version of Xerces, I would need to use WebLogic 8. This
is not an option for me at this stage.
So, I used this approach. When starting the WebLogic server, you can assign ClassPath
entries to an environment variable called PRE_CLASSPATH. This will prepend the
class path used by the App Container's JVM with the values in the variable. I
added the xercesImpl and xalan jars to this entry.
Because the WebLogic class loaders will always defer to the parent class loader,
it will check this class path first. So now I can directly instantiate the apach
implementation classes (typecasting them back to their API interface definitions)
and use them within the container.
"Ed Hillmann" <[email protected]> wrote:
>
I'm using WebLogic 7.0.2, and I want to use the Apache TransformerFactory
and DocumentBuilderFactory
instead of the default weblogic.* classes. I've found the documentation,
where
I define an XML Registry as follows (snippet from my config.xml)...
<Server ListenAddress="####" ListenPort="####" Name="myserver"
NativeIOEnabled="true" ServerVersion="7.0.2.0"
StdoutEnabled="true" StdoutSeverityLevel="8"
StuckThreadMaxTime="14400"
XMLEntityCache="XMLCacheMBean_myserver" XMLRegistry="CT XML Registry">
<COM Name="myserver"/>
<ExecuteQueue Name="default" ThreadCount="15"/>
<IIOP Name="myserver"/>
<JTAMigratableTarget Cluster="" Name="myserver" UserPreferredServer="myserver"/>
<JTARecoveryService Name="myserver"/>
<KernelDebug Name="myserver"/>
<Log FileName="myserver/myserver.log" Name="myserver"/>
<SSL Enabled="true" HostnameVerificationIgnored="true"
ListenPort="###" Name="myserver"
ServerCertificateFileName="democert.pem"
ServerPrivateKeyAlias="demokey" ServerPrivateKeyPassPhrase="{3DES}gAuVwsR68oAlLdIfO1PAtw=="/>
<ServerDebug Name="myserver"/>
<ServerStart Name="myserver"/>
<WebServer DefaultWebApp="DefaultWebApp"
LogFileName="myserver/access.log" LoggingEnabled="true" Name="myserver"/>
</Server>
<XMLEntityCache Name="XMLCacheMBean_myserver"/>
<XMLRegistry
DocumentBuilderFactory="org.apache.xerces.jaxp.DocumentBuilderFactoryImpl"
Name="CT XML Registry"
SAXParserFactory="org.apache.xerces.jaxp.SAXParserFactoryImpl"
TransformerFactory="org.apache.xalan.processor.TransformerFactoryImpl"
WhenToCache="cache-on-reference"/>
I've played aorund with xercesImpl being in and out of classpaths, etc.
But no
matter what I do, calls to TransformerFactory.newInstance creates an
instance
of weblogic.xml.jaxp.RegistrySAXTransformerFactory and DocumentBuilderFactory.newInstance()
creates an instance of weblogic.xml.jaxp.RegistryDocumentBuilderFactory.
I don't want to use these classes, and supposedly I can control which
classes
I will use, but it's not working for me. Has anyone been able to get
this working?
Is there anything else that I'm missing?
Thanks,
Ed