net.wimpi.modbus.io
Class ModbusTCPTransport

java.lang.Object
  net.wimpi.modbus.io.ModbusTCPTransport

All Implemented Interfaces:

ModbusTransport

public class ModbusTCPTransport

extends java.lang.Object

implements ModbusTransport

Class that implements the Modbus transport flavor.

Version:

1.2rc1 (09/11/2004)

Author:

Dieter Wimberger

Constructor Summary

ModbusTCPTransport(java.net.Socket socket)
Constructs a new ModbusTransport instance, for a given Socket.

Method Summary

void	close() Closes the raw input and output streams of this ModbusTransport.
ModbusRequest	readRequest() Reads a ModbusRequest from the input stream of this ModbusTransport.
ModbusResponse	readResponse() Reads a ModbusResponse from the input stream of this ModbusTransport.
void	setSocket(java.net.Socket socket) Sets the Socket used for message transport and prepares the streams used for the actual I/O.
void	writeMessage(ModbusMessage msg) Writes a to the output stream of this ModbusTransport.

Methods inherited from class java.lang.Object

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

Constructor Detail

ModbusTCPTransport

public ModbusTCPTransport(java.net.Socket socket)

Constructs a new ModbusTransport instance, for a given Socket.

Parameters:

socket - the Socket used for message transport.

Method Detail

setSocket

public void setSocket(java.net.Socket socket)
               throws java.io.IOException

Sets the Socket used for message transport and prepares the streams used for the actual I/O.

Parameters:

socket - the Socket used for message transport.

Throws:

java.io.IOException - if an I/O related error occurs.

close

public void close()
           throws java.io.IOException

Description copied from interface: ModbusTransport

Closes the raw input and output streams of this ModbusTransport.

Specified by:

close in interface ModbusTransport

Throws:

java.io.IOException - if a stream cannot be closed properly.

writeMessage

public void writeMessage(ModbusMessage msg)
                  throws ModbusIOException

Description copied from interface: ModbusTransport

Writes a to the output stream of this ModbusTransport.

Specified by:

writeMessage in interface ModbusTransport

Parameters:

msg - a ModbusMessage.

Throws:

ModbusIOException - data cannot be written properly to the raw output stream of this ModbusTransport.

readRequest

public ModbusRequest readRequest()
                          throws ModbusIOException

Description copied from interface: ModbusTransport

Reads a ModbusRequest from the input stream of this ModbusTransport.

Specified by:

readRequest in interface ModbusTransport

Returns:

req the ModbusRequest read from the underlying stream.

Throws:

ModbusIOException - data cannot be read properly from the raw input stream of this ModbusTransport.

readResponse

public ModbusResponse readResponse()
                            throws ModbusIOException

Description copied from interface: ModbusTransport

Reads a ModbusResponse from the input stream of this ModbusTransport.

Specified by:

readResponse in interface ModbusTransport

Returns:

res the ModbusResponse read from the underlying stream.

Throws:

ModbusIOException - data cannot be read properly from the raw input stream of this ModbusTransport.