vbsClient

Class RegisterClient

java.lang.Object

vbsClient.RegisterClient

public class RegisterClient
extends java.lang.Object

The class RegisterClient is used for:
- registering the client at the server to obtain a clientId (if client does not have any clientId assigned before)
- validating the current clientId of the client (if the client has one)

Author:

Jacob Honoré Broberg, Kartheepan Balachandran (kba@es.aau.dk), Tomasz Bujlow (tbu@es.aau.dk)

Field Summary

Fields

Modifier and Type	Field and Description
private java.net.InetAddress	ip IP address of the VBS server.
private static org.apache.log4j.Logger	log Used to log different events.
private java.net.Socket	mySocket The socket used for communication with the VBS server.
private int	port Number of the TCP port on the VBS server on which it listens for upgrade requests.

Constructor Summary

Constructors

Constructor and Description
RegisterClient(java.lang.String ip, int port) Constructs the class.

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.String	register() Registers the client at the server.
boolean	validateClientId(java.lang.String clientId) Validates whether the client identifier is correct.

Methods inherited from class java.lang.Object

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

Field Detail

log

private static org.apache.log4j.Logger log

Used to log different events.

mySocket

private java.net.Socket mySocket

The socket used for communication with the VBS server.

port

private int port

Number of the TCP port on the VBS server on which it listens for upgrade requests.

ip

private java.net.InetAddress ip

IP address of the VBS server.

Constructor Detail

RegisterClient

public RegisterClient(java.lang.String ip,
              int port)
               throws java.io.IOException

Constructs the class.

Parameters:

ip - IP address of the VBS server

port - number of the TCP port on the VBS server on which it listens for registration requests

Throws:

java.io.IOException - if the IP address of the server is invalid

Method Detail

register

public java.lang.String register()
                          throws java.io.IOException

Registers the client at the server. Initially the permission to transfer is requested by transferring a know register key to the server. If this key is accepted clientId is received.

Returns:

clientId received from the server. If clientId is null, registration failed.

Throws:

java.io.IOException - if registration fails due to problem with communication between the client and the server

validateClientId

public boolean validateClientId(java.lang.String clientId)
                         throws java.io.IOException

Validates whether the client identifier is correct.

Parameters:

clientId - the client identifier to validate

Returns:

true if client identifier can be validated, false otherwise

Throws:

java.io.IOException - If validation fails due to problem with communication between the client and the server