[jboss-user] [JBoss Web Services] - @XMLElement(required = true) Validation

[Vincenzo Esposito]

Vincenzo Esposito [http://community.jboss.org/people/vesposito] created the discussion

"@XMLElement(required = true) Validation"

To view the discussion, visit: http://community.jboss.org/message/600002#600002

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Dear Community,
before anything thanks for all support. 

Configuration:
JBoss 4.2.3.GA
JBossWS Native 3.1.0.GA

+I'm just developing a simple test usingWebService. I have some constraints to be applied to service’s parameters. In particular I’m looking for away to assure that the service provider receives only requests with valid input parameters.+


This is the service code:

TestService Interface
import javax.jws.WebMethod;
import javax.jws.WebService;
import javax.jws.soap.SOAPBinding;
import javax.jws.soap.SOAPBinding.ParameterStyle;
import javax.jws.soap.SOAPBinding.Style;
 
 
import org.jboss.wsf.spi.annotation.WebContext;
 
 
@WebContext(contextRoot="/TestService")
@WebService
@SOAPBinding(style= Style.DOCUMENT, parameterStyle = ParameterStyle.WRAPPED)
public interface TestService {
 
 
          @WebMethod
          public void sendInfo(TestObject to);
 
}
 
 
 


TestServiceBean
import javax.ejb.Stateless;
import javax.jws.WebMethod;
import javax.jws.WebService;
import org.jboss.wsf.spi.annotation.WebContext;
 
 
@WebContext(contextRoot="/Test-Service")
@WebService(serviceName="TestService", endpointInterface="testing.TestService")
@Stateless
public class TestServiceBean implements TestService {
 
 
          @WebMethod
          public void sendInfo(TestObject to) {
               System.out.println(to.get_data());
               System.out.println(to.get_key());
          }
 
 
}
 


TestObject Class
import javax.xml.bind.annotation.XmlElement;
 
 
public class TestObject {
 
 
          private String _data;
 
          private int _key;
 
          @XmlElement(name = "_data", required = true)
          public String get_data() {
               return _data;
          }
 
 
          public void set_data(String _data) {
               this._data = _data;
          }
 
 
          public int get_key() {
               return _key;
          }
 
 
          public void set_key(int _key) {
               this._key = _key;
          }
 
 
 
}
 


+As you can see by code, analyzing TestObject class, Idecided that the "_data" attribute should be necessarly required and it must be not “nillable”. Once deployed, the generated WSDL is this one:+


TestServiceBean.wsdl
<definitions name="TestService" targetNamespace="http://testing/" xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://testing/" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
 <types>
  <xs:schema targetNamespace="http://testing/" version="1.0" xmlns:tns="http://testing/" xmlns:xs="http://www.w3.org/2001/XMLSchema">
   <xs:element name="sendInfo" type="tns:sendInfo"/>
   <xs:element name="sendInfoResponse" type="tns:sendInfoResponse"/>
   <xs:complexType name="sendInfo">
    <xs:sequence>
     <xs:element minOccurs="0" name="arg0" type="tns:testObject"/>
    </xs:sequence>
   </xs:complexType>
   <xs:complexType name="testObject">
    <xs:sequence>
     <xs:element name="_data" type="xs:string"/>
     <xs:element name="_key" type="xs:int"/>
    </xs:sequence>
   </xs:complexType>
   <xs:complexType name="sendInfoResponse">
    <xs:sequence/>
   </xs:complexType>
  </xs:schema>
 </types>
 <message name="TestService_sendInfoResponse">
  <part element="tns:sendInfoResponse" name="sendInfoResponse"/>
 </message>
 <message name="TestService_sendInfo">
  <part element="tns:sendInfo" name="sendInfo"/>
 </message>
 <portType name="TestService">
  <operation name="sendInfo" parameterOrder="sendInfo">
   <input message="tns:TestService_sendInfo"/>
   <output message="tns:TestService_sendInfoResponse"/>
  </operation>
 </portType>
 <binding name="TestServiceBinding" type="tns:TestService">
  <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
  <operation name="sendInfo">
   <soap:operation soapAction=""/>
   <input>
    <soap:body use="literal"/>
   </input>
   <output>
    <soap:body use="literal"/>
   </output>
  </operation>
 </binding>
 <service name="TestService">
  <port binding="tns:TestServiceBinding" name="TestServiceBeanPort">
   <soap:address location="http://127.0.0.1:8180/Test-Service/TestServiceBean"/>
  </port>
 </service>
</definitions>
 


+Just analyzing the WSDL, I don't see anything about the "required" element, but using "wsconsume" tool I can obtain stubs to use client side. In detail, this is the generated TestObject stub+

Generated TestObject Stub detail
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "testObject", propOrder = {
    "data",
    "key"
})
public class TestObject {
 
 
    @XmlElement(name = "_data", required = true)
    protected String data;
    @XmlElement(name = "_key")
    protected int key;
.....
}


+The generated Stub contains the"required" constraint over the "_data" attribute.+
++ 
+In order to be consistent, I think that if Itry to use the TestObject omitting the "_data" value, JBossWS should not allow the service request. This is the client main method using to request the service.+ 

Main class
public static void main(String[] args) {
 
          TestService_Service srv = new TestService_Service();
          TestService test_srv = srv.getTestServiceBeanPort();
 
          TestObject to = new TestObject();
          to.setKey(3);
 
          test_srv.sendInfo(to);
 
}


*+Running the client, it will perform the request without any Exception on its side and the "null" value for the "_data"attribute is received by service implementation.+*
++ 
+Now, what's wrong with the code? Is there anyexplaination about this issue? Why the WSDL do not contains the contraints over the "_data" value? Is there any validation before the SOAPMessage send?+
++ 
+Thank you for support again.+
++ 
+Vincenzo+
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