Please advise on the WSDL - web-services

Question

I have created a WSDL to create a greeting service. Given below is the WSDL.
I am using thsi wsdl to create a generate and expose a web-service using the cxf:proxy-service in mule.
This is giving me errors.
Please review and help me undertand what is the problem with this WSDL.
<?xml version='1.0' encoding='UTF-8'?>
<wsdl:definitions name="HelloService"
targetNamespace="http://example.org/HelloService"
xmlns:tns="http://example.org/HelloService"
xmlns:ns1="http://schemas.xmlsoap.org/soap/http"
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<wsdl:types>
<xsd:schema targetNamespace="http://example.org/HelloService" >
<xsd:element name="LastName">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="lName" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="FirstName">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="fName" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:element name="Greeting">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="greet" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>
</wsdl:types>
<wsdl:message name="shortRequest">
<wsdl:part type="tns:LastName" name="lastName"/>
</wsdl:message>
<wsdl:message name="fullRequest">
<wsdl:part type="tns:FirstName" name="firstName"/>
<wsdl:part type="tns:LastName" name="lastName"/>
</wsdl:message>
<wsdl:message name="greetingResponse">
<wsdl:part type="tns:greeting" name="greetings"/>
</wsdl:message>
<wsdl:portType name="HelloServicePortType">
<wsdl:operation name="simpleGreeting">
<wsdl:input message="tns:shortRequest" name="shortRequest" />
<wsdl:output message="tns:greetingResponse" name="greetingResponse" />
</wsdl:operation>
<wsdl:operation name="fullGreeting">
<wsdl:input message="tns:fullRequest" name="fullRequest" />
<wsdl:output message="tns:greetingResponse" name="greetingResponseFull" />
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="HelloServiceSOAP" type="tns:HelloServicePortType">
<soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
<wsdl:operation name="simpleGreeting">
<soap:operation soapAction="" style="document" />
<wsdl:input name="shortRequest">
<soap:body use="literal"/>
</wsdl:input>
<wsdl:output name="greetingResponse">
<soap:body use="literal"/>
</wsdl:output>
</wsdl:operation>
<wsdl:operation name="fullGreeting">
<soap:operation soapAction="" style="document" />
<wsdl:input name="fullRequest">
<soap:body use="literal"/>
</wsdl:input>
<wsdl:output name="greetingResponseFull">
<soap:body use="literal"/>
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="ProxyService">
<wsdl:port binding="tns:HelloServiceSOAP" name="HelloServiceSOAPB">
<soap:address location="http://localhost:8080/HelloService" />
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
Please help me if there is something wrong in my WSDL.
It is not working when I use it in mule cxf:proxy-service.
FGiven below si the Mule Flow which is using this WSDL to expose service.
<flow name="WS_In">
<http:inbound-endpoint address="http://localhost:8080/HelloService" exchange-pattern="request-response">
<cxf:proxy-service wsdlLocation="classpath:globalid3.wsdl" namespace="http://example.org/HelloService" service="ProxyService" />
</http:inbound-endpoint>
<component>
<prototype-object class="com.example.ServiceProxy">
</prototype-object>
</component>
<echo-component></echo-component>
<logger level="INFO" />
</flow>
and the Error is :
org.mule.api.lifecycle.LifecycleException: Lifecycle Manager 'WS_In.stage1' phase 'start' does not support phase 'dispose'
at org.mule.lifecycle.AbstractLifecycleManager.invokePhase(AbstractLifecycleManager.java:156)

Answer 1

There is a casing issue in your WSDL. Instead of:
<wsdl:message name="greetingResponse">
<wsdl:part type="tns:greeting" name="greetings"/>
</wsdl:message>
you should have:
<wsdl:message name="greetingResponse">
<wsdl:part type="tns:Greeting" name="greetings"/>
</wsdl:message>
With this fixed, the following produces a web service that works fine when called from SOAPui:
<flow name="WS_In">
<http:inbound-endpoint address="http://localhost:8080/HelloService"
exchange-pattern="request-response">
<cxf:proxy-service wsdlLocation="classpath:globalid3.wsdl"
namespace="http://example.org/HelloService" service="ProxyService" />
</http:inbound-endpoint>
<custom-processor class="com.example.ServiceProxy" />
</flow>
Message processor:
package com.example;
import javax.xml.namespace.QName;
import org.apache.commons.lang.StringEscapeUtils;
import org.mule.api.MuleEvent;
import org.mule.api.MuleException;
import org.mule.api.processor.MessageProcessor;
public class ServiceProxy implements MessageProcessor
{
private final static QName SIMPLE_GREETING = new QName("http://example.org/HelloService",
"simpleGreeting");
public MuleEvent process(final MuleEvent event) throws MuleException
{
final QName operation = event.getFlowVariable("cxf_operation");
if (operation.equals(SIMPLE_GREETING))
{
final String lastName = event.getMuleContext()
.getExpressionLanguage()
.evaluate("xpath('/lastName').text", event);
final String responseXml = "<greetings><greet>Hi " + StringEscapeUtils.escapeXml(lastName)
+ "</greet></greetings>";
event.getMessage().setPayload(responseXml);
return event;
}
throw new UnsupportedOperationException(operation.getLocalPart() + " " + operation.getNamespaceURI()
+ " " + operation.getPrefix());
}
}

Answer 2

There is one way to do this using cxf:jaxws-service, but you'll need to generate the service class. Take a look here on how to do this.
After that you can configure the service in a very simple way.
<cxf:jaxws-service
serviceClass="mypackage.webservices.MyServicePortType"
validationEnabled="false">
</cxf:jaxws-service>

Answer 3

The flow that is working is as below.
<flow name="WS_In">
<http:inbound-endpoint address="http://localhost:8080/HelloService" exchange-pattern="request-response">
<cxf:proxy-service wsdlLocation="classpath:helloservice.wsdl" namespace="http://example.org/HelloService" service="ProxyService" />
</http:inbound-endpoint>
<component>
<prototype-object class="com.example.ServiceProxy">
</prototype-object>
</component>
<echo-component></echo-component>
<logger level="INFO" />
</flow>
And the WSDL is
<?xml version='1.0' encoding='UTF-8'?>
<wsdl:definitions name="HelloService"
targetNamespace="http://example.org/HelloService"
xmlns:tns="http://example.org/HelloService"
xmlns:ns1="http://schemas.xmlsoap.org/soap/http"
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<wsdl:message name="shortRequest">
<wsdl:part type="xsd:string" name="lastName"/>
</wsdl:message>
<wsdl:message name="fullRequest">
<wsdl:part type="xsd:string" name="firstName"/>
<wsdl:part type="xsd:string" name="lastName"/>
</wsdl:message>
<wsdl:message name="greetingResponse">
<wsdl:part type="xsd:string" name="greetings"/>
</wsdl:message>
<wsdl:portType name="HelloServicePortType">
<wsdl:operation name="simpleGreeting">
<wsdl:input message="tns:shortRequest" name="shortRequest" />
<wsdl:output message="tns:greetingResponse" name="greetingResponse" />
</wsdl:operation>
<wsdl:operation name="fullGreeting">
<wsdl:input message="tns:fullRequest" name="fullRequest" />
<wsdl:output message="tns:greetingResponse" name="greetingResponseFull" />
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="HelloServiceSOAP" type="tns:HelloServicePortType">
<soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
<wsdl:operation name="simpleGreeting">
<soap:operation soapAction="" style="document" />
<wsdl:input name="shortRequest">
<soap:body use="literal"/>
</wsdl:input>
<wsdl:output name="greetingResponse">
<soap:body use="literal"/>
</wsdl:output>
</wsdl:operation>
<wsdl:operation name="fullGreeting">
<soap:operation soapAction="" style="document" />
<wsdl:input name="fullRequest">
<soap:body use="literal"/>
</wsdl:input>
<wsdl:output name="greetingResponseFull">
<soap:body use="literal"/>
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="ProxyService">
<wsdl:port binding="tns:HelloServiceSOAP" name="HelloServiceSOAPB">
<soap:address location="http://localhost:8080/HelloService" />
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
Thanks everyone for your help and support.