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From Daniel Kulp <dk...@apache.org>
Subject Re: How to add wsdl extension for SOAP/JMS.
Date Mon, 06 Jul 2009 14:14:59 GMT

Liu,

I just want to say this is very nice work.   Thanks for tackling this.   It 
almost makes  me want to go through the rest of the wsdl extension schemas and 
make them not subclass the old TExensibilityElementImpl thing.   Would 
simplify that stuff quite a bit.  

Again, nice job.

Dan


On Fri July 3 2009 9:10:04 am liucong wrote:
> Hi,
>     I am writing a plugin for xjc.
>     First I just modify the cxf-xjc-ts and cxf-xjc-ts-test, and make it
> work with the -Xwsdlextension, not -Xts. The pom file is also changed.
> And it works rightly.
>     Then I copy the modified projects into cxf-xjc-wsdlextension and
> cxf-xjc-wsdlextension-test, and make the cxf-xjc-ts the same with the
> subversion.
>     It failed. The exception is:
>     [INFO]
> ------------------------------------------------------------------------
> [INFO] Building Apache CXF XJC WSDL Extension Plugin Tests
> [INFO]    task-segment: [install]
> [INFO]
> ------------------------------------------------------------------------
> [INFO] [cxf-xml2fastinfoset:xml2fastinfoset {execution: xml2fastinfoset}]
> [INFO] [jaxb2:xjc {execution: default}]
> [INFO] Generating source...
> [INFO]
> ------------------------------------------------------------------------
> [ERROR] BUILD ERROR
> [INFO]
> ------------------------------------------------------------------------
> [INFO] unrecognized parameter -Xwsdlextension
>
>     What's wrong? Do I need to do more configuration for ths xjc plugin?
>
> thanks!
>
> Daniel Kulp wrote:
> > Liu,
> >
> > I think for stuff that are "simple" (basically, complexTypes with
> > simpleContent and simpleType object), you cannot extend
> > TExtensibilityElementImpl.   Instead, you would need to make it implement
> > ExtensibilityElement interface and add the QName and required fields and
> > such.
> >
> > Dan
> >
> > On Wed July 1 2009 12:18:15 pm liucong wrote:
> >> Hi,
> >>
> >>     I do a simple experiment about the design sugguest by Dan.
> >>     First, I use jaxb, not xjc. I think they have the principle.
> >>
> >>     The schema like this[1]:
> >>     <xs:element name="deliveryMode" type="soapjms:deliveryModeType" />
> >>     <xs:complexType name="deliveryModeType">
> >>         <xs:simpleContent>
> >>             <xs:extension base="xs:string">
> >>             </xs:extension>
> >>         </xs:simpleContent>
> >>     </xs:complexType>
> >>
> >>     The generated class for DeliveryModeType like this[2]:
> >> @XmlAccessorType(XmlAccessType.FIELD)
> >> @XmlType(name = "deliveryModeType", propOrder = {
> >>     "value"
> >> })
> >> public class DeliveryModeType{
> >>
> >>     @XmlValue
> >>     protected String value;
> >>
> >>     /**
> >>      * Gets the value of the value property.
> >>      *
> >>      * @return
> >>      *     possible object is
> >>      *     {@link String }
> >>      *
> >>      */
> >>     public String getValue() {
> >>         return value;
> >>     }
> >>
> >>     /**
> >>      * Sets the value of the value property.
> >>      *
> >>      * @param value
> >>      *     allowed object is
> >>      *     {@link String }
> >>      *
> >>      */
> >>     public void setValue(String value) {
> >>         this.value = value;
> >>     }
> >>
> >>     public boolean isSetValue() {
> >>         return (this.value!= null);
> >>     }
> >> }
> >>
> >> The DeliveryModeType doesn't extend TExtensibilityElementImpl. So I just
> >> modify the class and make it look like this[3]:
> >> @XmlAccessorType(XmlAccessType.FIELD)
> >> @XmlType(name = "deliveryModeType", propOrder = {
> >>     "value"
> >> })
> >> public class DeliveryModeType extends TExtensibilityElementImpl{
> >>
> >>     @XmlValue
> >>     protected String value;
> >>
> >>     /**
> >>      * Gets the value of the value property.
> >>      *
> >>      * @return
> >>      *     possible object is
> >>      *     {@link String }
> >>      *
> >>      */
> >>     public String getValue() {
> >>         return value;
> >>     }
> >>
> >>     /**
> >>      * Sets the value of the value property.
> >>      *
> >>      * @param value
> >>      *     allowed object is
> >>      *     {@link String }
> >>      *
> >>      */
> >>     public void setValue(String value) {
> >>         this.value = value;
> >>     }
> >>
> >>     public boolean isSetValue() {
> >>         return (this.value!= null);
> >>     }
> >> }
> >>
> >> Then when I publish a service, I get an exception[4]
> >> Creating Service {http://cxf.apache.org/jms_greeter}JMSGreeterService
> >> from WSDL: file:./wsdl/jms_greeter.wsdl
> >> Exception in thread "main" javax.xml.ws.WebServiceException:
> >> org.apache.cxf.service.factory.ServiceConstructionException: Failed to
> >> create service.
> >>     at
> >> org.apache.cxf.jaxws.EndpointImpl.doPublish(EndpointImpl.java:275) at
> >> org.apache.cxf.jaxws.EndpointImpl.publish(EndpointImpl.java:209) at
> >> org.apache.cxf.jaxws.spi.ProviderImpl.createAndPublishEndpoint(ProviderI
> >>mpl .java:84) at javax.xml.ws.Endpoint.publish(Endpoint.java:47)
> >>     at demo.jms_greeter.server.Server.<init>(Server.java:30)
> >>     at demo.jms_greeter.server.Server.main(Server.java:34)
> >> Caused by: org.apache.cxf.service.factory.ServiceConstructionException:
> >> Failed to create service.
> >>     at
> >> org.apache.cxf.wsdl11.WSDLServiceFactory.<init>(WSDLServiceFactory.java:
> >>93) at
> >> org.apache.cxf.service.factory.ReflectionServiceFactoryBean.buildService
> >>Fro mWSDL(ReflectionServiceFactoryBean.java:317) at
> >> org.apache.cxf.service.factory.ReflectionServiceFactoryBean.initializeSe
> >>rvi ceModel(ReflectionServiceFactoryBean.java:437) at
> >> org.apache.cxf.service.factory.ReflectionServiceFactoryBean.create(Refle
> >>cti onServiceFactoryBean.java:195) at
> >> org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.create(JaxWsService
> >>Fac toryBean.java:163) at
> >> org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.createEndpoint(
> >>Abs tractWSDLBasedEndpointFactory.java:100) at
> >> org.apache.cxf.frontend.ServerFactoryBean.create(ServerFactoryBean.java:
> >>117 ) at
> >> org.apache.cxf.jaxws.JaxWsServerFactoryBean.create(JaxWsServerFactoryBea
> >>n.j ava:167) at
> >> org.apache.cxf.jaxws.EndpointImpl.getServer(EndpointImpl.java:346) at
> >> org.apache.cxf.jaxws.EndpointImpl.doPublish(EndpointImpl.java:259) ... 5
> >> more
> >> Caused by: javax.wsdl.WSDLException: WSDLException (at
> >> /wsdl:definitions/wsdl:binding/soapjms:deliveryMode):
> >> faultCode=PARSER_ERROR: Error reading element
> >> {http://www.w3.org/2008/07/soap/bindings/JMS/}deliveryMode:
> >> java.lang.RuntimeException:
> >> com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 1 counts of
> >> IllegalAnnotationExceptions
> >> @XmlValue is not allowed on a class that derives another class.
> >>     this problem is related to the following location:
> >>         at protected java.lang.String
> >> org.apache.cxf.transport.jms.spec.DeliveryModeType.value
> >>         at org.apache.cxf.transport.jms.spec.DeliveryModeType
> >>         at public org.apache.cxf.transport.jms.spec.DeliveryModeType
> >> org.apache.cxf.transport.jms.spec.ObjectFactory.createDeliveryModeType()
> >>         at org.apache.cxf.transport.jms.spec.ObjectFactory
> >>
> >>     at
> >> org.apache.cxf.wsdl.JAXBExtensionHelper.unmarshall(JAXBExtensionHelper.j
> >>ava
> >>
> >> :299) at
> >> : com.ibm.wsdl.xml.WSDLReaderImpl.parseExtensibilityElement(Unknown
> >>
> >> Source)
> >>     at com.ibm.wsdl.xml.WSDLReaderImpl.parseBinding(Unknown Source)
> >>     at com.ibm.wsdl.xml.WSDLReaderImpl.parseDefinitions(Unknown Source)
> >>     at com.ibm.wsdl.xml.WSDLReaderImpl.readWSDL(Unknown Source)
> >>     at com.ibm.wsdl.xml.WSDLReaderImpl.readWSDL(Unknown Source)
> >>     at com.ibm.wsdl.xml.WSDLReaderImpl.readWSDL(Unknown Source)
> >>     at com.ibm.wsdl.xml.WSDLReaderImpl.readWSDL(Unknown Source)
> >>     at com.ibm.wsdl.xml.WSDLReaderImpl.readWSDL(Unknown Source)
> >>     at
> >> org.apache.cxf.wsdl11.WSDLManagerImpl.loadDefinition(WSDLManagerImpl.jav
> >>a:2 10) at
> >> org.apache.cxf.wsdl11.WSDLManagerImpl.getDefinition(WSDLManagerImpl.java
> >>:17 5) at
> >> org.apache.cxf.wsdl11.WSDLServiceFactory.<init>(WSDLServiceFactory.java:
> >>91) ... 14 more
> >>
> >> So I have a question. What's wrong? Could the xjc solve this exception?
> >>
> >> thank you.
> >> liu
> >>
> >> Daniel Kulp wrote:
> >>> On Thu June 25 2009 1:39:34 am liucong wrote:
> >>>> Hi, Dan,
> >>>>
> >>>>     Thank you very much for your advice.  By some experiments for the
> >>>> WSDL extension. I think it is right that this WSDL extension needs
> >>>> some changes to CXF wsdl processing. And the CXF wsdl processing will
> >>>> supoort the entension in SOAP/JMS.  I think this kind of extension is
> >>>> necessary for CXF wsdl processing.
> >>>
> >>> The best place to look is in the cxf trunk/common/xjc/ts project.  
> >>> That project is an XJC plugin that adds "toString" methods to all the
> >>> generated types.
> >>>
> >>>
> >>> For MOST cases, you would need make the superclass be
> >>> TExtensibilityElementImpl instead of Object.
> >>>
> >>> In other cases, it's a bit more complex:
> >>> 1) For stuff that sublasses JAXBElement, you would need to make it
> >>> implement ExtensibilityElement and add those methods and field.
> >>>
> >>> 2) For Enums - I think the stuff from (1) applies as well, not really
> >>> sure though.
> >>>
> >>> Technically, it PROBABLY just needs to apply to "root" elements. 
> >>> (Stuff with @XmlRootElement annotations).
> >>>
> >>>
> >>> Dan
> >>>
> >>>>     Are there any documents which help me finish this kind of
> >>>> extension?  thank you! :-)
> >>>>
> >>>> Liu
> >>>>
> >>>> Daniel Kulp wrote:
> >>>>> Hmm...   I'm not really sure.   I don't think there IS a schema
that
> >>>>> would work properly for this.   My gut feeling was something like:
> >>>>>
> >>>>>
> >>>>> <xs:complexType name="deliveryModeType">
> >>>>>     <xs:simpleContent>
> >>>>>         <xs:restriction base="wsdl:tExtensibilityElement">
> >>>>>            <xs:enumeration value="PERSISTENT" />
> >>>>>            <xs:enumeration value="NON_PERSISTENT" />
> >>>>>        </xs:restriction>
> >>>>>     </xs:simpleContent>
> >>>>> </xs:complexType>
> >>>>>
> >>>>> but I know that doesn't work.
> >>>>>
> >>>>> This will probably need some changes to CXF wsdl processing to really
> >>>>> get this to work well.   Actually, this could provide a good
> >>>>> opportunity to cleanup the JAXB WSDL   extension mechanism to NOT
> >>>>> require that the schema extends the wsdl:tExtensibilityElement type.
> >>>>> I'm actually thinking a xjc plugin that would make all the generated
> >>>>> types
> >>>>> automatically implement the wsdl4j ExtensibiltyElement interface
and
> >>>>> add the methods/fields for that.
> >>>>>
> >>>>> That can significantly cleanup the CXF schemas for all the extensors.
> >>>>> It would be completely automatic.
> >>>>>
> >>>>> Dan
> >>>>>
> >>>>> On Tue June 23 2009 11:51:43 am liucong wrote:
> >>>>>> Hi,
> >>>>>> I want to add wsdl extension for SOAP/JMS according to
> >>>>>> http://www.w3.org/TR/2008/WD-soapjms-20081121/#wsdl-extensions.
> >>>>>>
> >>>>>> For example, I want add wsdl extension for DeliveryMode property.
I
> >>>>>> edit the wsdl file like[1]:
> >>>>>> <wsdl:binding name="JMSGreeterPortBinding"
> >>>>>> type="tns:JMSGreeterPortType"> <soap:binding style="document"
> >>>>>> transport="http://www.w3.org/2008/07/soap/bindings/JMS/"/>
> >>>>>>
> >>>>>> <soapjms:deliveryMode>PERSISTENT</soapjms:deliveryMode>
> >>>>>>
> >>>>>> <wsdl:operation name="greetMe">
> >>>>>> <soap:operation soapAction="test" style="document"/>
> >>>>>> <wsdl:input name="greetMeRequest">
> >>>>>> <soap:body use="literal"/>
> >>>>>> </wsdl:input>
> >>>>>> <wsdl:output name="greetMeResponse">
> >>>>>> <soap:body use="literal"/>
> >>>>>> </wsdl:output>
> >>>>>> </wsdl:operation>
> >>>>>> ...
> >>>>>> </wsdl:binding>
> >>>>>>
> >>>>>> If I add the extension schema like this[2]:
> >>>>>>
> >>>>>> <xs:element name="deliveryMode" type="soapjms:deliveryModeType"
/>
> >>>>>>
> >>>>>> <xs:complexType name="deliveryModeType">
> >>>>>> <xs:complexContent>
> >>>>>> <xs:extension base="wsdl:tExtensibilityElement">
> >>>>>> <xs:sequence>
> >>>>>> <xs:element name="deliveryMode">
> >>>>>> <xs:simpleType>
> >>>>>> <xs:restriction base="xs:string">
> >>>>>> <xs:enumeration value="PERSISTENT" />
> >>>>>> <xs:enumeration value="NON_PERSISTENT" />
> >>>>>> </xs:restriction>
> >>>>>> </xs:simpleType>
> >>>>>> </xs:element>
> >>>>>> </xs:sequence>
> >>>>>> </xs:extension>
> >>>>>> </xs:complexContent>
> >>>>>> </xs:complexType>
> >>>>>>
> >>>>>> But I can't get the extension in the wsdl.
> >>>>>> If I change the wsdl like this[3]:
> >>>>>> <wsdl:binding name="JMSGreeterPortBinding"
> >>>>>> type="tns:JMSGreeterPortType"> <soap:binding style="document"
> >>>>>> transport="http://www.w3.org/2008/07/soap/bindings/JMS/"/>
> >>>>>>
> >>>>>> <soapjms:deliveryMode><soapjms:deliveryMode>PERSISTENT</soapjms:deli
> >>>>>>ve ry Mod e></soapjms:deliveryMode>
> >>>>>>
> >>>>>> <wsdl:operation name="greetMe">
> >>>>>> <soap:operation soapAction="test" style="document"/>
> >>>>>> <wsdl:input name="greetMeRequest">
> >>>>>> <soap:body use="literal"/>
> >>>>>> </wsdl:input>
> >>>>>> <wsdl:output name="greetMeResponse">
> >>>>>> <soap:body use="literal"/>
> >>>>>> </wsdl:output>
> >>>>>> </wsdl:operation>
> >>>>>> ...
> >>>>>> </wsdl:binding>
> >>>>>>
> >>>>>> I'll get the result of deliveryMode extension.
> >>>>>> I think the wsdl extension just can add attributes, element
to a
> >>>>>> extension element in CXF. But I can't get the extension element's
> >>>>>> value. Is it right?
> >>>>>>
> >>>>>> My question is: how to get the extension information in [1].
What
> >>>>>> does the extension schema look like?
> >>>>>>
> >>>>>> thanks.
> >>>>>> Liu

-- 
Daniel Kulp
dkulp@apache.org
http://www.dankulp.com/blog

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