XmlRpc project -

["Grippa, Pietro" <pi...@atosorigin.com>]

 
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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