netcom.log
Class FileReaderThread

java.lang.Object
  java.lang.Thread
      netcom.log.FileReaderThread

All Implemented Interfaces:

java.lang.Runnable

public class FileReaderThread

extends java.lang.Thread

Title: FileReaderThread This is a Thread used by the Logger to process LogSession requests from the GUI It has the ability to go into the file and make a resulting packet of information and LogEntries in the form of a LogMessage Copyright: Copyright (c) 2002 Company NETCOM

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

FileReaderThread(LoggerInterface the_interface)
Constructor method

Method Summary

void	addToQueue(LogMessage lm) this method is called when the parent thread (Logger) hears that a LogMessage wants the file to be read for info to be sent back in the form of a LogMessage it adds a LogMessage so that to the queue so that it can wait to be processed
void	beginAgain() public method called to allow the FileReaderThread to continue processing
void	finalize() public method that makes the die_flag of this thread equal to true, and brings the thread out of its infinite loop to terminate it
LogMessage	getReturnMessage() returns the LogMessage that has just been made by processing to the Logger class
void	halt() public method that evokes the flag in the FileReaderThread to stop processing until all entries waiting to be written to file are processed first.
void	run() run method inherent to threads keeps on running till die_flag is activated..

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, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

FileReaderThread

public FileReaderThread(LoggerInterface the_interface)

Constructor method

Parameters:

the_interface - takes an interface that implements LoggerInterface so that info about the parent can be accessed

Method Detail

run

public void run()

run method inherent to threads keeps on running till die_flag is activated.. processes read requests appropriately depending on type of request

addToQueue

public void addToQueue(LogMessage lm)
                throws Overflow

this method is called when the parent thread (Logger) hears that a LogMessage wants the file to be read for info to be sent back in the form of a LogMessage it adds a LogMessage so that to the queue so that it can wait to be processed

Parameters:

lm - this is a LogMessage that holds the relevant information to process the GUI's request

Throws:

Overflow

getReturnMessage

public LogMessage getReturnMessage()

returns the LogMessage that has just been made by processing to the Logger class

Returns:

lm LogMessage that has just been made by processing to be sent back to GUI

halt

public void halt()

public method that evokes the flag in the FileReaderThread to stop processing until all entries waiting to be written to file are processed first. after they are processed, it's set back to false again.

beginAgain

public void beginAgain()

public method called to allow the FileReaderThread to continue processing

finalize

public void finalize()

public method that makes the die_flag of this thread equal to true, and brings the thread out of its infinite loop to terminate it