Using client-config.wsdd to deploy a javax.xml.rpc.handler.Handler

Fri, 24 Oct 2003 08:00:06 -0700

I have written a Handler that implements javax.xml.rpc.handler.Handler. When I try to deploy it on a client using client-config.wsdd, Axis throws a fault. The same client-config.wsdd works fine if I replace the class with a class that extends org.apache.axis.handlers.BasicHandler, and I can configure my original handler on the server side with deploy.wsdd.

The Axis WSDDDeployableItem class attempts to cast my handler to org.apache.axis.Handler, which throws a ClassCastException. Is there some option I can set in client-config.wsdd that will deploy the javax.xml.rpc.handler.Handler? Or is it only possible by adding the Handler in the client programatically, as in the jaxrpc/hello/HelloClient.java sample?

Thanks,
Mike

------------------------- Here's the Fault: ----------------------------------

AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException
faultSubcode:
faultString: org.apache.axis.ConfigurationException: java.lang.ClassCastException
java.lang.ClassCastException
at org.apache.axis.deployment.wsdd.WSDDDeployableItem.makeNewInstance(WSDDDeployableItem.java:338)
at org.apache.axis.deployment.wsdd.WSDDDeployableItem.getNewInstance(WSDDDeployableItem.java:310)
at org.apache.axis.deployment.wsdd.WSDDDeployableItem.getInstance(WSDDDeployableItem.java:296)
at org.apache.axis.deployment.wsdd.WSDDDeployment.getHandler(WSDDDeployment.java:455)
at org.apache.axis.deployment.wsdd.WSDDDeployableItem.getNewInstance(WSDDDeployableItem.java:312)
at org.apache.axis.deployment.wsdd.WSDDDeployableItem.getInstance(WSDDDeployableItem.java:296)
at org.apache.axis.deployment.wsdd.WSDDChain.makeNewInstance(WSDDChain.java:164)
at org.apache.axis.deployment.wsdd.WSDDDeployableItem.getNewInstance(WSDDDeployableItem.java:310)
at org.apache.axis.deployment.wsdd.WSDDDeployableItem.getInstance(WSDDDeployableItem.java:296)
at org.apache.axis.deployment.wsdd.WSDDDeployment.getGlobalRequest(WSDDDeployment.java:531)
at org.apache.axis.configuration.FileProvider.getGlobalRequest(FileProvider.java:294)
at org.apache.axis.AxisEngine.getGlobalRequest(AxisEngine.java:304)
at org.apache.axis.client.AxisClient.invoke(AxisClient.java:166)
at org.apache.axis.client.Call.invokeEngine(Call.java:2564)
at org.apache.axis.client.Call.invoke(Call.java:2553)
at org.apache.axis.client.Call.invoke(Call.java:2248)
at org.apache.axis.client.Call.invoke(Call.java:2171)
at org.apache.axis.client.Call.invoke(Call.java:1691)
at service.weather.AirportWeatherPortSoapBindingStub.getTemp(AirportWeatherPortSoapBindingStub.java:243)
at ServiceTestClient.main(ServiceTestClient.java:29)

----------- Here's the client-config.wsdd:-------------------------------------

    <?xml version="1.0" encoding="UTF-8"?>
    <deployment xmlns="http://xml.apache.org/axis/wsdd/";
                xmlns:java="http://xml.apache.org/axis/wsdd/providers/java";>
        <!-- the handler that implements javax.xml.rpc.handler.Handler
             causes a fault -->
        <handler name="log" type="java:client.MessageHandler"/>

        <!-- the following BasicHandler subclass works fine -->
        <!--<handler name="log" type="java:client.SOAPMonitor"/>-->

        <globalConfiguration>
            <requestFlow>
                <handler type="log"/>
            </requestFlow>
            <responseFlow>
                <handler type="log"/>
            </responseFlow>
        </globalConfiguration>
        <transport name="java"
                   pivot="java:org.apache.axis.transport.java.JavaSender"/>
        <transport name="http"
                   pivot="java:org.apache.axis.transport.http.HTTPSender"/>
        <transport name="local"
                   pivot="java:org.apache.axis.transport.local.LocalSender"/>
    </deployment>

------------------- Here's the handler class: --------------------------------

package client;

    import java.util.Iterator;
    import javax.xml.namespace.QName;
    import javax.xml.rpc.JAXRPCException;
    import javax.xml.rpc.handler.Handler;
    import javax.xml.rpc.handler.HandlerInfo;
    import javax.xml.rpc.handler.MessageContext;
    import javax.xml.rpc.handler.soap.SOAPMessageContext;
    import javax.xml.soap.*;

    public class MessageHandler implements Handler {
        public MessageHandler() {
        }

        public void init(HandlerInfo config) {
        }

public boolean handleRequest(MessageContext context) throws JAXRPCException {
log.info("supplier.MessageHandler: In handleRequest");
SOAPMessage request = ((SOAPMessageContext)context).getMessage();
handleRequestMessage(request);
return true;
}

public boolean handleResponse(MessageContext context) throws JAXRPCException {
log.info("supplier.MessageHandler: In handleResponse");
SOAPMessage response = ((SOAPMessageContext)context).getMessage();
handleResponseMessage(response);
return true;
}

        public boolean handleFault(MessageContext context) {
            log.info("supplier.MessageHandler: In handleFault");
            return true;
        }

public void destroy() { }

        public QName[] getHeaders() {
            return null;
        }

        private void handleRequestMessage(SOAPMessage response) {
            logMessage(response);
        }

        private void handleResponseMessage(SOAPMessage response) {
            logMessage(response);
        }

        private void logMessage(SOAPMessage msg) throws JAXRPCException {
            try {
                log.info("Message:");
                log.info(msg.getSOAPPart().getEnvelope().toString());
            }
            catch (SOAPException e) {
                log.error("Error processing SOAP message: " + e);
                throw new JAXRPCException(e);
            }
        }

        private static org.apache.log4j.Logger log =
            org.apache.log4j.Logger.getLogger("com.ltree.crs577");

}


--

Mike Woinoski                      Pine Needle Consulting
mailto:[EMAIL PROTECTED]

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