webtester.packages.distributed
Class serverHandler

java.lang.Object
  |
  +--java.lang.Thread
        |
        +--webtester.packages.distributed.serverHandler

All Implemented Interfaces:

java.lang.Runnable

public class serverHandler

extends java.lang.Thread

Handles user input, and sends appropriate responses.

Author:

Aaron DeLong

Field Summary

private boolean	bConfigLoaded Indicates whether a config file is loaded.
private boolean	bMaster Indicates if the server is a master or not.
private static int	iNodeAssign A counter used to assign new nodes a number.
private java.io.DataInputStream	input Contain input to the server.
private int	iNumTries Number of allowed tries to read data from client.
private int	iSleepTime Amount of time to sleep when waiting for client to send data.
private int	iTextAreaLength Max number of characters allowed in textarea.
private java.io.PrintStream	output Sends ouput to the client.
private java.lang.String	sConfigFile The config file that was loaded.
private java.lang.String	sMessage Last status message.
private javax.swing.JTextArea	text Text area used to update user.

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

serverHandler(java.io.InputStream in, java.io.OutputStream out)
Constructor that takes input/output streams as arguments.

Method Summary

private java.lang.String	getConfigFileContents() Retrieve the contents of the configuration file that is loaded.
java.lang.String	getMessage() Return the last message received.
private int	getNodeNumber() Get a uniqe number to assign to the node.
private void	handleNodeUpdates(java.lang.String sCmdStr) Deal with updates coming from a node to the master server.
void	run() The main entry point into the server handler routines.
private void	sendResponse(java.lang.String sResponse)
void	setConfigFile(java.lang.String sStr) Set the config file that was loaded.
void	setConfigLoaded(boolean bVal) Set the value that indicates if a config file is loaded.
void	setMaster(boolean bVal) Indicates whether the server is a master.
void	setTextArea(javax.swing.JTextArea jtext) Set textarea used to update user.
private void	updateTextArea(java.lang.String sText) Update the text area without erasing all existing data, if possible

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getName, getPriority, getThreadGroup, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setName, setPriority, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

input

private java.io.DataInputStream input

Contain input to the server.

output

private java.io.PrintStream output

Sends ouput to the client.

text

private javax.swing.JTextArea text

Text area used to update user.

iNumTries

private final int iNumTries

Number of allowed tries to read data from client.

See Also:

Constant Field Values

iSleepTime

private final int iSleepTime

Amount of time to sleep when waiting for client to send data.

See Also:

Constant Field Values

iTextAreaLength

private final int iTextAreaLength

Max number of characters allowed in textarea.

See Also:

Constant Field Values

iNodeAssign

private static int iNodeAssign

A counter used to assign new nodes a number.

bConfigLoaded

private boolean bConfigLoaded

Indicates whether a config file is loaded.

sConfigFile

private java.lang.String sConfigFile

The config file that was loaded.

sMessage

private java.lang.String sMessage

Last status message.

bMaster

private boolean bMaster

Indicates if the server is a master or not.

Constructor Detail

serverHandler

public serverHandler(java.io.InputStream in,
                     java.io.OutputStream out)

Constructor that takes input/output streams as arguments.

Parameters:

in - contains input to the server

out - used to send output to the client

Method Detail

setMaster

public void setMaster(boolean bVal)

Indicates whether the server is a master.

Parameters:

bVal - indicates whether the server is a master

setTextArea

public void setTextArea(javax.swing.JTextArea jtext)

Set textarea used to update user.

Parameters:

jtext - textarea used to update user

setConfigLoaded

public void setConfigLoaded(boolean bVal)

Set the value that indicates if a config file is loaded.

Parameters:

bVal - the boolean value to use

setConfigFile

public void setConfigFile(java.lang.String sStr)

Set the config file that was loaded.

Parameters:

sStr - the config file that was loaded

getMessage

public java.lang.String getMessage()

Return the last message received.

Returns:

a String that contains the last message received

run

public void run()

The main entry point into the server handler routines.

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread

sendResponse

private void sendResponse(java.lang.String sResponse)

getNodeNumber

private int getNodeNumber()

Get a uniqe number to assign to the node.

Returns:

an integer that represents the node assignment

updateTextArea

private void updateTextArea(java.lang.String sText)

Update the text area without erasing all existing data, if possible

Parameters:

sText - the text to add to the text area

getConfigFileContents

private java.lang.String getConfigFileContents()

Retrieve the contents of the configuration file that is loaded.

Returns:

the contents of the configuration file

handleNodeUpdates

private void handleNodeUpdates(java.lang.String sCmdStr)

Deal with updates coming from a node to the master server.

Parameters:

sCmdStr - command input to the server