#62 proxy-key components 2 support forwarding of remoted objs

[Neil Avery]

A proxy-key component contains key/address information
about where an object is. Incoming requests for a
key-(proxy object) will return the proxy-key marshalled
object to the client.

comment: marshalling is going to look at the
implementation of 'RemoteProxyWrapper' then assemble
address information. However, if this is already an
instance of a remoteproxywrapper we wont rewrap it up
-- just pass off the existing remoteproxywrapper.

Unmarshalling will behave as normall. This assumes that
RemoteProxyWrappers will be placed into the container
as part of the bind, leech-key process. (when peer is
super-node).

RemoteProxyWrapper ctor instances need to have the
local address placed into it.

public Object unmarshallInstance(Object instance,
URI localURI, URI remoteURI) {

if (instance instanceof RemoteProxyWrapper){
RemoteProxyWrapper instanceWrapper =
(RemoteProxyWrapper) instance;
byte[] bs = instanceWrapper.getBs();
String proxyClassName =
instanceWrapper.getProxyClassName();
try {
classloader.defineClass(proxyClassName, bs);
Object newInstance =
classloader.loadClass(proxyClassName, false).newInstance();
enable(instanceWrapper.getKey(),
newInstance, localURI, remoteURI);
return newInstance;

} catch (Exception e) {
}
return instance;
}

[Neil Avery]

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Will function as a dynamic routing table