lbnl.actor.lib.net
Class Server

java.lang.Object
  lbnl.actor.lib.net.Server

public class Server
extends java.lang.Object

Server that opens a BSD socket for communication with simulation engine.

Since:

Ptolemy II 8.0

Version:

$Id: Server.java 59167 2010-09-21 17:08:02Z cxh $

Author:

Michael Wetter

Field Summary

(package private) java.net.Socket	cliSoc The client socket.
protected double[]	dblVal The array that contains the last double values read from the socket .
protected int	flaFroCli The communication flag read during the socket read command.
private static java.lang.String	LS System dependent line separator
protected java.net.ServerSocket	serSoc The server socket.
protected double	simTimRea The current simulation time as received from the client.
protected double	simTimWri The simulation time last written to the client.
protected int	verNo The version number of the socket implementation.

Constructor Summary

Server(int timOut)
Construct a server on any available port.

Server(int portNo, int timOut)
Construct a server on the port specified by portNo.

Method Summary

private void	_write(java.lang.StringBuffer strBuf) Write the data to the socket.
void	close() Close the socket.
int	getClientFlag() Returns the last communication flag read from the socket.
double[]	getDoubleArray() Return the last double array read from the socket.
int	getLocalPort() Get the port number.
double	getSimulationTimeReadFromClient() Return the last simulation time read from the client.
double	getSimulationTimeWrittenToClient() Return the last simulation time written to the client.
static void	main(java.lang.String[] args) Main method that can be used for testing.
void	read() Read data from the socket.
void	write(int flagToClient, double curTim, double[] dblVal) Write data to the socket.

Methods inherited from class java.lang.Object

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

Field Detail

cliSoc

java.net.Socket cliSoc

The client socket.

dblVal

protected double[] dblVal

The array that contains the last double values read from the socket .

flaFroCli

protected int flaFroCli

The communication flag read during the socket read command.

serSoc

protected java.net.ServerSocket serSoc

The server socket.

simTimRea

protected double simTimRea

The current simulation time as received from the client.

simTimWri

protected double simTimWri

The simulation time last written to the client.

verNo

protected int verNo

The version number of the socket implementation.

LS

private static final java.lang.String LS

System dependent line separator

Constructor Detail

Server

public Server(int timOut)
       throws java.io.IOException

Construct a server on any available port.

Parameters:

timOut - Socket time out in milliseconds.

Throws:

java.io.IOException - If the server socket cannot be opened.

Server

public Server(int portNo,
              int timOut)
       throws java.io.IOException

Construct a server on the port specified by portNo.

Parameters:

portNo - Port number for BSD socket.

timOut - Socket time out in milliseconds.

Throws:

java.io.IOException - If the server socket cannot be opened.

Method Detail

getLocalPort

public int getLocalPort()

Get the port number.

Returns:

The port number.

write

public void write(int flagToClient,
                  double curTim,
                  double[] dblVal)
           throws java.io.IOException

Write data to the socket.

Parameters:

flagToClient - The communication flag.

curTim - The current simulation time.

dblVal - The array with double values.

Throws:

java.io.IOException - If a communication problems occur.

_write

private void _write(java.lang.StringBuffer strBuf)
             throws java.io.IOException

Write the data to the socket.

Parameters:

strBuf - The string buffer to be sent to the socket.

Throws:

java.io.IOException - If communication problems occur.

getClientFlag

public int getClientFlag()

Returns the last communication flag read from the socket.

Returns:

The communication flag.

getDoubleArray

public double[] getDoubleArray()

Return the last double array read from the socket.

Returns:

dblVal The array with double values.

getSimulationTimeWrittenToClient

public double getSimulationTimeWrittenToClient()

Return the last simulation time written to the client.

Returns:

The last simulation time written to the client.

getSimulationTimeReadFromClient

public double getSimulationTimeReadFromClient()

Return the last simulation time read from the client.

Returns:

The last simulation time read from the client.

read

public void read()
          throws java.io.IOException,
                 java.net.SocketTimeoutException

Read data from the socket.

Throws:

java.io.IOException - If communication problems occur.

java.net.SocketTimeoutException - If the socket does not respond.

close

public void close()
           throws java.io.IOException

Close the socket.

Throws:

java.io.IOException - If an I/O error occurs when closing the socket.

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Main method that can be used for testing.

Parameters:

args - An array of length 1 that names the port to be used

Throws:

java.lang.Exception - If anything goes wrong.