Problem with XPathExtension

[Szpak]

Hi,

I tried to use XPathExtension like described on I21's blog, but I have problem with mapping endpoint to requests.
I have an endpoint (changeUserPasswordXPathEndpoint) and XPathEpression (changeUserPasswordXPathEndpoint) similar to those already mentioned and tried with PayloadRootQNameEndpointMapping:

    <bean class="org.springframework.ws.server.endpoint.mapping.PayloadRootQNameEndpointMapping">
        <property name="mappings">
            <props>
                <prop key="{http://www.myname.org/schemas}ChangeUserPasswordRequest">changeUserPasswordXPathEndpoint</prop>
            </props>
        </property>
        <property name="interceptors">
            <bean class="org.springframework.ws.server.endpoint.interceptor.PayloadLoggingInterceptor"/>
        </property>
    </bean>

    <bean id="changeUserPasswordExpression" class="org.springframework.xml.xpath.XPathExpressionFactoryBean">
        <property name="namespaces" value="http://www.myname.org/schemas"/>
        <property name="expression" value="/ChangeUserPasswordRequest/Username"/>
    </bean>

    <bean id="changeUserPasswordXPathEndpoint" class="org.myname.proj.webservice.ChangeUserPasswordXPathEndpoint">
        <constructor-arg ref="changeUserPasswordExpression"/>
    </bean>

xsd looks like:

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
        elementFormDefault="qualified"
        xmlns:xsd="http://www.w3.org/2001/XMLSchema"
        targetNamespace="http://www.myname.org/schemas"
        xmlns:ss="http://www.myname.org/schemas">
    <xs:element name="ChangeUserPasswordRequest">
        <xs:complexType>
            <xs:all>
                <xs:element name="Username" type="xsd:string"/>
                <xs:element name="OldPassword" type="xsd:string"/>
                <xs:element name="NewPassword" type="xsd:string"/>
            </xs:all>
        </xs:complexType>
    </xs:element>
</xs:schema>

On incoming request Endpoint is called, but given element is null.
I'm just stating with spring-ws, so maybe it's a trivial question, but how can I map XPathEndpoint to that request?

Regards
Marcin

[Arjen Poutsma]

I think the trick is that you don't define the namespaces in the XPathExpression properly. Try:

<bean id="changeUserPasswordExpression" class="org.springframework.xml.xpath.XPathExpressionFactoryBean">
  <property name="namespaces">
    <props>
      <prop key="tns">http://www.myname.org/schemas</prop>
    </props>
  <property name="expression" value="/tns:ChangeUserPasswordRequest/tns:Username"/>
</bean>

[Szpak]

Yup. It was a problem. I treated "Namespaces" (Properties type) as a "Namespace" (String value).

Thanks for a solution.