marquee.xmlrpc
Class XmlRpcProxy

java.lang.Object
  marquee.xmlrpc.XmlRpcProxy

All Implemented Interfaces:

java.lang.reflect.InvocationHandler

Direct Known Subclasses:

Proxy

public class XmlRpcProxy

extends java.lang.Object

implements java.lang.reflect.InvocationHandler

An XmlRpcProxy lets you use the services of an XML-RPC server through regular Java interfaces. It uses the Dynamic Proxy API introduced in JDK 1.3 to dynamically convert calls through Java interfaces to XML-RPC messages. This may be an improvement over the XmlRpcClient -- using a server through Java interfaces allows compilation-time type checking, IDE code completion, and prevents typos and other errors.

Since:

JDK 1.3

Version:

$Revision: 1.8 $

Author:

Greger Ohlson (greger.ohlson@marquee.se), Rainer Bischof (rainer.bischof@eds.com), Toby Allsopp (tobya@peace.com)

Method Summary

static java.lang.Object	createProxy(java.lang.String host, int port, java.lang.String path, java.lang.Class[] interfaces) Creates a new dynamic proxy object that implements all supplied interfaces.
static java.lang.Object	createProxy(java.lang.String host, int port, java.lang.String path, java.lang.String objectName, java.lang.Class[] interfaces) Creates a new dynamic proxy object that implements all supplied interfaces.
static java.lang.Object	createProxy(java.net.URL url, java.lang.Class[] interfaces) Creates a new dynamic proxy object that implements all supplied interfaces.
static java.lang.Object	createProxy(java.net.URL url, java.lang.String objectName, java.lang.Class[] interfaces) Creates a new dynamic proxy object that implements all supplied interfaces.
java.lang.Object	invoke(java.lang.Object proxy, java.lang.reflect.Method method, java.lang.Object[] args) Handles method calles invoked on the proxy object.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

createProxy

public static java.lang.Object createProxy(java.lang.String host,
                                           int port,
                                           java.lang.String path,
                                           java.lang.Class[] interfaces)
                                    throws XmlRpcException

Creates a new dynamic proxy object that implements all supplied interfaces. This object may be type cast to any of the interface supplied in the call. Method calls through the interfaces will be translated to XML-RPC calls to the server at the supplied host, port and path.

Parameters:

host - The host of the XML-RPC server that will receive calls through the interfaces

port - The port of the XML-RPC server that will receive calls through the interfaces

path - The path of the XML-RPC server that will receive calls through the interfaces

interfaces - The list of interfaces the proxy should implement

Returns:

An object implementing the supplied interfaces with XML-RPC support

Throws:

XmlRpcException

createProxy

public static java.lang.Object createProxy(java.lang.String host,
                                           int port,
                                           java.lang.String path,
                                           java.lang.String objectName,
                                           java.lang.Class[] interfaces)
                                    throws XmlRpcException

Creates a new dynamic proxy object that implements all supplied interfaces. This object may be type cast to any of the interface supplied in the call. Method calls through the interfaces will be translated to XML-RPC calls to the server at the supplied host, port and path.

Parameters:

host - The host of the XML-RPC server that will receive calls through the interfaces

port - The port of the XML-RPC server that will receive calls through the interfaces

path - The path of the XML-RPC server that will receive calls through the interfaces

objectName - The name under which the handler is reachable

interfaces - The list of interfaces the proxy should implement

Returns:

An object implementing the supplied interfaces with XML-RPC support

Throws:

XmlRpcException

createProxy

public static java.lang.Object createProxy(java.net.URL url,
                                           java.lang.Class[] interfaces)
                                    throws XmlRpcException

Creates a new dynamic proxy object that implements all supplied interfaces. This object may be type cast to any of the interface supplied in the call. Method calls through the interfaces will be translated to XML-RPC calls to the server in the supplied url.

Parameters:

url - The XML-RPC server that will receive calls through the interfaces

interfaces - The list of interfaces the proxy should implement

Returns:

An object implementing the supplied interfaces with XML-RPC support

Throws:

XmlRpcException

createProxy

public static java.lang.Object createProxy(java.net.URL url,
                                           java.lang.String objectName,
                                           java.lang.Class[] interfaces)
                                    throws XmlRpcException

Creates a new dynamic proxy object that implements all supplied interfaces. This object may be type cast to any of the interface supplied in the call. Method calls through the interfaces will be translated to XML-RPC calls to the server in the supplied url.

Parameters:

url - The XML-RPC server that will receive calls through the interfaces

interfaces - The list of interfaces the proxy should implement

objectName - The name under which the handler is reachable

Returns:

An object implementing the supplied interfaces with XML-RPC support

Throws:

XmlRpcException

invoke

public java.lang.Object invoke(java.lang.Object proxy,
                               java.lang.reflect.Method method,
                               java.lang.Object[] args)
                        throws java.lang.Throwable

Handles method calles invoked on the proxy object. This is not used by the application but has to be public so that the dynamic proxy has access to it. Just hand call over to the performCall method

Specified by:

invoke in interface java.lang.reflect.InvocationHandler

Returns:

Any of the values returned by an XmlRpcClient

Throws:

java.lang.Throwable