Hi everybody,
> I'm Pietro Grippa from Milan, Italy and I
>would like to have your opinion about my business
>need.
>I've developed an application based on the XmlRpc
>framework. I needed to save the user data, and the
>first solution was to create an applicative session,
>let's say a singleton where I've a Hashtable, I use
>the user identifier as a key and I can save the user
>data.
>Now we need to use HttpSession to save user data, to
>have the possibility to use Tomcat cluster.
>So, what I need to know is if you're interested on my
>contribution to modify the framework adding the possibility of using the
http session management.
>I would like to know your opinion about my idea.
>
>I developed a prototype for this purpose, introducing
>the following features:
>
>Class XmlRpcServer
>new method:
>public byte[] execute(InputStream is,HttpSession ses)
> {
> return execute(is, new
>DefaultXmlRpcContext(null, null,
>getHandlerMapping(),ses));
> }
>
>Class DefaultXmlRpcContext
>new field:
>protected HttpSession ses = null;
>
>new constructor
> public DefaultXmlRpcContext(String userName, String
>password, XmlRpcHandlerMapping
>handlerMapping,HttpSession ses)
> {
> this.userName = userName;
> this.password = password;
> this.handlerMapping = handlerMapping;
> this.ses = ses;
> }
>
>class XmlRpcWorker
>modified method:
>
>protected static Object invokeHandler(Object handler,
>XmlRpcRequest request, XmlRpcContext context)
> throws Exception
> {
> long now = 0;
>
> try
> {
> System.out.println("handler invoked
>"+handler.getClass().getName());
> if (XmlRpc.debug)
> {
> now = System.currentTimeMillis();
> }
> if (handler == null)
> {
> throw new NullPointerException
> ("Null handler passed to
>XmlRpcWorker.invokeHandler");
> }
> else if (handler instanceof
>ContextXmlRpcHandler)
> {
> return ((ContextXmlRpcHandler)
>handler).execute
> (request.getMethodName(),
>request.getParameters(), context);
> }
> else if (handler instanceof XmlRpcHandler)
> {
> System.out.println("XmlRpcHandler");
> return ((XmlRpcHandler)
>handler).execute
> (request.getMethodName(),
>request.getParameters());
> }else if (handler instanceof
>XmlRpcHandlerSession)
> {
>
>System.out.println("XmlRpcHandlerSession");
> return ((XmlRpcHandlerSession)
>handler).execute
> (request.getMethodName(),
>request.getParameters(),context.getSes());
> }
> else if (handler instanceof
>AuthenticatedXmlRpcHandler)
> {
> return ((AuthenticatedXmlRpcHandler)
>handler)
> .execute(request.getMethodName(),
>request.getParameters(),
> context.getUserName(),
>context.getPassword());
> }
> else
> {
> System.out.println("ERROR");
> throw new ClassCastException("Handler
>class " +
>
>handler.getClass().getName() +
> " is not a
>valid XML-RPC handler");
> }
> }
> finally
> {
> if (XmlRpc.debug)
> {
> System.out.println("Spent " +
>(System.currentTimeMillis() - now)
> + " millis processing
>request");
> }
> }
> }
>
>
>new interface
>public interface XmlRpcHandlerSession
>{
> /**
> * Return the result, or throw an Exception if
>something went wrong.
> */
> public Object execute (String method, Vector
>params,HttpSession ses)
> throws Exception;
>
>}
>
>On the client side I modified
>XmlRpcClient
>
>a new field
>protected String cooky = null;
>with getter and setter
>
>and I modified XmlRpcClient.Worker.execute(String
>s,Vector v) to add the cookie management
>
>I send you my prototype.
>
>Thanks for your attention
>
>Pietro Grippa
>
>=====
>Pietro Grippa
>333/7561992
>
>
>
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