org.jpos.iso.channel
Class X25Channel

java.lang.Object
  java.util.Observable
      org.jpos.iso.BaseChannel
          org.jpos.iso.channel.X25Channel

All Implemented Interfaces:

Cloneable, Configurable, BaseChannelMBean, ClientChannel, FactoryChannel, FilteredChannel, ISOChannel, ISOSource, ServerChannel, LogSource

public class X25Channel
extends BaseChannel

Implements an ISOChannel suitable to be used to connect to an X.25 PAD. It waits a limited amount of time to decide when a packet is ready to be unpacked. This channel is based on PADChannel version 1.4. The new version seems to have some problems dealing with ETXs (we're working on it). Use this version _only_ if you have problems with current PADChannel as it will be deprecated some time in the future.

Version:

$Id$

Author:

Alejandro P. Revilla

See Also:

ISOMsg, ISOException, ISOChannel

Field Summary

protected byte[]

header

Fields inherited from class org.jpos.iso.BaseChannel

cnt, incomingFilters, logger, originalRealm, outgoingFilters, overrideHeader, packager, realm, serverIn, serverInLock, serverOut, serverOutLock, serverSocket, socketFactory, usable

Fields inherited from interface org.jpos.iso.ISOChannel

CONNECT, RX, SIZEOF_CNT, TX

Constructor Summary

X25Channel()
No-args constructor

X25Channel(ISOPackager p)
Construct server ISOChannel

X25Channel(ISOPackager p, ServerSocket serverSocket)
constructs a server ISOChannel associated with a Server Socket

X25Channel(String host, int port, ISOPackager p)
Constructs client ISOChannel

Method Summary

protected void	connect(Socket socket) setup I/O Streams from socket
void	disconnect() disconnects the TCP/IP session.
byte[]	getHeader()
protected int	getHeaderLength()
protected void	sendMessageHeader(ISOMsg m, int len)
void	setHeader(byte[] header)
void	setHeader(String header)
protected byte[]	streamReceive()

Methods inherited from class org.jpos.iso.BaseChannel

accept, addFilter, addFilter, addIncomingFilter, addOutgoingFilter, applyIncomingFilters, applyIncomingFilters, applyOutgoingFilters, applyTimeout, clone, connect, createISOMsg, createMsg, getBytes, getChannel, getConfiguration, getCounters, getDynamicHeader, getDynamicPackager, getDynamicPackager, getDynamicPackager, getHeaderLength, getHeaderLength, getHost, getIncomingFilters, getLogger, getMaxPacketLength, getMessage, getMessageLength, getMessageTrailler, getName, getOriginalRealm, getOutgoingFilters, getPackager, getPort, getRealm, getServerSocket, getSocket, getSocketFactory, getTimeout, isConnected, isOverrideHeader, isRejected, newSocket, newSocket, postConnectHook, readHeader, receive, reconnect, removeFilter, removeFilter, removeIncomingFilter, removeOutgoingFilter, resetCounters, send, send, sendKeepAlive, sendMessage, sendMessageLength, sendMessageTrailler, sendMessageTrailler, setConfiguration, setHost, setHost, setIncomingFilters, setLocalAddress, setLogger, setMaxPacketLength, setName, setOutgoingFilters, setOverrideHeader, setPackager, setPort, setServerSocket, setSocketFactory, setTimeout, setUsable, shouldIgnore, unpack

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Field Detail

header

protected byte[] header

Constructor Detail

X25Channel

public X25Channel()

No-args constructor

X25Channel

public X25Channel(String host,
                  int port,
                  ISOPackager p)

Constructs client ISOChannel

Parameters:

host - server TCP Address

port - server port number

p - an ISOPackager

See Also:

ISOPackager

X25Channel

public X25Channel(ISOPackager p)
           throws IOException

Construct server ISOChannel

Parameters:

p - an ISOPackager

Throws:

IOException

See Also:

ISOPackager

X25Channel

public X25Channel(ISOPackager p,
                  ServerSocket serverSocket)
           throws IOException

constructs a server ISOChannel associated with a Server Socket

Parameters:

p - an ISOPackager

serverSocket - where to accept a connection

Throws:

IOException

See Also:

ISOPackager

Method Detail

streamReceive

protected byte[] streamReceive()
                        throws IOException

Overrides:

streamReceive in class BaseChannel

Returns:

a byte array with the received message

Throws:

IOException

connect

protected void connect(Socket socket)
                throws IOException

Description copied from class: BaseChannel

setup I/O Streams from socket

Overrides:

connect in class BaseChannel

Parameters:

socket - a Socket (client or server)

Throws:

IOException - on error

disconnect

public void disconnect()
                throws IOException

Description copied from class: BaseChannel

disconnects the TCP/IP session. The instance is ready for a reconnection. There is no need to create a new ISOChannel

Specified by:

disconnect in interface BaseChannelMBean

Specified by:

disconnect in interface ISOChannel

Overrides:

disconnect in class BaseChannel

Throws:

IOException

getHeaderLength

protected int getHeaderLength()

Overrides:

getHeaderLength in class BaseChannel

setHeader

public void setHeader(byte[] header)

Overrides:

setHeader in class BaseChannel

setHeader

public void setHeader(String header)

Overrides:

setHeader in class BaseChannel

Parameters:

header - Hex representation of header

getHeader

public byte[] getHeader()

Overrides:

getHeader in class BaseChannel

sendMessageHeader

protected void sendMessageHeader(ISOMsg m,
                                 int len)
                          throws IOException

Overrides:

sendMessageHeader in class BaseChannel

Throws:

IOException