com.distinct.rpc
Class ClientHTTP

java.lang.Object
  |
  +--com.distinct.rpc.ClientGeneric
        |
        +--com.distinct.rpc.ClientHTTP

All Implemented Interfaces:

java.io.Serializable

public class ClientHTTP

extends ClientGeneric

Implementation of the RPC protocol via HTTP.

See Also:

ClientGeneric, Serialized Form

Constructor Summary

ClientHTTP(java.lang.String host, java.lang.String gateway, java.lang.String rpchost, int prog, int vers, boolean stream)
Creates a new HTTP protocol object.

Method Summary

void	Call(int prog, int vers, int proc, XDRType in, XDRType out) Calls the server.
void	close() Closes the connection and frees the socket resource.
void	setResend(int milliseconds) Changes the timeout value for retransmission of the request (no function for TCP).
void	setTimeout(int timeout) Changes the timeout value for waiting on server replies (default is 25s).

Methods inherited from class com.distinct.rpc.ClientGeneric

Call, getReturnedVerifier, setCredential, setVerifier

Methods inherited from class java.lang.Object

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

Constructor Detail

ClientHTTP

public ClientHTTP(java.lang.String host,
                  java.lang.String gateway,
                  java.lang.String rpchost,
                  int prog,
                  int vers,
                  boolean stream)
           throws RPCError,
                  java.io.IOException

Creates a new HTTP protocol object. Requires the "rpcgw" CGI-script on the server to perform the real call.

Parameters:

host - The hostname of the node on which the HTTP-server lives.

gateway - The filename of the "rpcgw" CGI-script that translates the HTTP request into an RPC call.

rpchost - The name of the host on which the real RPC server lives.

prog - The program ID of the server as defined in the .x IDL file.

vers - The program version of the server as defined in the .x IDL file.

stream - true for a TCP connection, false for UDP.

Throws:

RPCError - When the port can not be found in the portmapper (perhaps there is even no portmapper running).

java.io.IOException - When the socket could not be opened.

Method Detail

Call

public void Call(int prog,
                 int vers,
                 int proc,
                 XDRType in,
                 XDRType out)
          throws RPCError,
                 java.io.IOException

Calls the server.

Overrides:

Call in class ClientGeneric

Parameters:

prog - The program ID of the server as defined in the .x IDL file.

vers - The program version of the server as defined in the .x IDL file.

proc - The ID of the request function as defined in the .x IDL file.

in - The input parameter (as it has to be marshalled it must be derived from XDRType).

out - The output parameter (as it has to be marshalled it must be derived from XDRType).

Throws:

java.io.IOException - When the call fails because the socket connetion fails.

RPCError - When the calls fails for any other reason.

close

public void close()

Closes the connection and frees the socket resource.

Overrides:

close in class ClientGeneric

setTimeout

public void setTimeout(int timeout)

Changes the timeout value for waiting on server replies (default is 25s).

Overrides:

setTimeout in class ClientGeneric

Parameters:

timeout - The new timeout value (0 means not timeout at all).

setResend

public void setResend(int milliseconds)

Changes the timeout value for retransmission of the request (no function for TCP).

Overrides:

setResend in class ClientGeneric

Parameters:

milliseconds - The new timeout value in ms.