Byte array as a data type

[mrahin]

I need to pass a byte[] as a parameter in one of my Web Services methods as follows,

public SPDHMessageDTO process(SPDHMessageDTO data);

where SPDHMessageDTO is defined as follows,

public class SPDHMessageDTO {

 // DTO Properties
 private String auditReference;
 private byte[] spdhMessage;
.....
}

The web service deploys correctly. The wsdl file generated by wstool is as follows,

<definitions name="SPDHProtocolService" targetNamespace="http://com.retail_logic.ws/spdhprotocol">
 <types>
 <schema targetNamespace="http://com.retail_logic.ws/spdhprotocol/types">
 <import namespace="http://schemas.xmlsoap.org/soap/encoding/"/>
 <complexType name="SPDHMessageDTO">
 <sequence>
 <element name="auditReference" type="string"/>
 <element name="spdhMessage" type="base64Binary"/>
 </sequence>
 </complexType>
 </schema>
 </types>

Note that the spdhMessage field is declared as "base64Binary" in the wsdl file.

The client is written in Java and the client-side stub is again generated by wstool. If I use stub code where the service is located as below everything works just fine.

private void locateService() {
 spdhService = (SPDHProtocolServiceWS) (new
 SPDHProtocolService_Impl().getSPDHProtocolServiceWSPort());
}

On the other hand if I use dynamic proxy to locate the service as below I get type mismatch exception on the client side.

private void locateService(String wsdlURI) throws Exception {
 if (wsdlURI == null || wsdlURI.length() == 0) {
 locateService();
 return;
 }
 ServiceFactoryImpl sf = (ServiceFactoryImpl)
 ServiceFactoryImpl.newInstance();
 URL wsdlURL = new URL(wsdlURI);
 QName qname = new QName(SERVICE_NAMESPACE, SERVICE_NAME);
 Service ots = sf.createService(wsdlURL, qname);

 spdhService = (SPDHProtocolServiceWS) ots.getPort(new
 QName(SERVICE_NAMESPACE, SERVICE_PORT),
 SPDHProtocolServiceWS.class);
}

Exception received if dynamic proxy is used:

Error: deserialization error: unexpected element type: expected={http://www.w3.org/2001/XMLSchema}hexBinary, actual={http://www.w3.org/2001/XMLSchema}base64Binary
deserialization error: unexpected element type: expected={http://www.w3.org/2001/XMLSchema}hexBinary, actual={http://www.w3.org/2001/XMLSchema}base64Binary
at com.sun.xml.rpc.encoding.SOAPDeserializationContext.deserializeMultiRefObjects(SOAPDeserializationContext.java:82)
at com.sun.xml.rpc.client.StreamingSender._send(StreamingSender.java:163)
at com.sun.xml.rpc.client.dii.CallInvokerImpl.doInvoke(CallInvokerImpl.java:61)
at com.sun.xml.rpc.client.dii.BasicCall.invoke(BasicCall.java:446)
at com.sun.xml.rpc.client.dii.CallInvocationHandler.doCall(CallInvocationHandler.java:99)
at com.sun.xml.rpc.client.dii.CallInvocationHandler.invoke(CallInvocationHandler.java:71)
at $Proxy0.process(Unknown Source)


Would very much appreciate if anyone could explain what I need to do to use dynamic proxy at the client-side.

Thanks.

- Mohammad Rahin

[thomas.diesler]

The standard SAAJ API is agnostic about the J2EE web service deployment model, i.e. it does not know about that jaxrpc-mapping.xml.

Have a look at
http://cvs.sourceforge.net/viewcvs.py/jboss/webservice/src/main/org/jboss/webservice/client/ServiceFactoryImpl.java?view=auto

 /**
 * Create a <code>Service</code> instance.
 * <p/>
 * Note, this method is not in the {@link ServiceFactory} interface, it provides the service
 * with additional ws4ee wsdl/java mapping information
 *
 * @param wsdlLocation URL for the WSDL document location
 * @param mappingLocation An optional URL for the jaxrpc-mapping.xml location
 * @param serviceName QName for the service.
 * @param portName An optional port name
 * @return Service.
 * @throws ServiceException If any error in creation of the
 * specified service
 */
 public Service createService(URL wsdlLocation, URL mappingLocation, URL ws4eeMetaData, QName serviceName, String portName) throws ServiceException