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org.dinopolis.util.io
Class FileChangeDetection  

java.lang.Object
  java.lang.Thread
      org.dinopolis.util.io.FileChangeDetection

All Implemented Interfaces:

java.lang.Runnable

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public class FileChangeDetection

extends java.lang.Thread

This class checks a given file and detects any modifications (if the modificaiton time changes) and informs any listeners on this change.

Version:

$Revision: 1.1 $

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Nested Class Summary

 

Nested classes inherited from class java.lang.Thread

java.lang.Thread.UncaughtExceptionHandler

 

Field Summary
protected static long	DEFAULT_LOOKUP_PERIOD
protected  java.lang.String	filename_
protected  long	last_modified_
protected  java.util.Vector	listeners_
protected  long	lookup_period_
protected  boolean	loop_thread_
protected  java.io.File	observed_file_

 

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

 

Constructor Summary

FileChangeDetection()           Constructor using the default lookup period.

FileChangeDetection(java.lang.String filename)           Constructor observing the given file and using the default lookup period.

FileChangeDetection(java.lang.String filename, long lookup_period)           Constructor observing the given file and the given lookup period.

 

Method Summary
void	addFileChangeListener(FileChangeListener listener)           Adds a listener that is informed about changes of the observed file.
protected  void	fireChangeDetected()           Informs all registered listeners about a change.
void	remoteFileChangeListener(FileChangeListener listener)           Removes a listener that is informed about changes of the observed file.
void	run()           Checks the file for its modification time and informs the listeners on a change.
void	setFile(java.io.File file)           Set the file to check for changes.
void	setFile(java.lang.String filename)           Set the file to check for changes.
void	setLookupPeriod(long lookup_period)           Set the period to check the file for changes.
void	startChangeDetection()           Starts the thread that detects any modifications of the file.
void	stopChangeDetection()           Stops the thread that detects any modifications of the file.

 

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, 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

DEFAULT_LOOKUP_PERIOD

protected static final long DEFAULT_LOOKUP_PERIOD

See Also:

Constant Field Values

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filename_

protected java.lang.String filename_

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lookup_period_

protected long lookup_period_

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loop_thread_

protected boolean loop_thread_

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last_modified_

protected long last_modified_

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observed_file_

protected java.io.File observed_file_

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listeners_

protected java.util.Vector listeners_

Constructor Detail

FileChangeDetection

public FileChangeDetection()

Constructor using the default lookup period.

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FileChangeDetection

public FileChangeDetection(java.lang.String filename)

Constructor observing the given file and using the default lookup period.

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FileChangeDetection

public FileChangeDetection(java.lang.String filename,
                           long lookup_period)

Constructor observing the given file and the given lookup period.

Method Detail

setFile

public void setFile(java.lang.String filename)

Set the file to check for changes.

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setFile

public void setFile(java.io.File file)

Set the file to check for changes.

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setLookupPeriod

public void setLookupPeriod(long lookup_period)

Set the period to check the file for changes.

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startChangeDetection

public void startChangeDetection()

Starts the thread that detects any modifications of the file.

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stopChangeDetection

public void stopChangeDetection()

Stops the thread that detects any modifications of the file.

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addFileChangeListener

public void addFileChangeListener(FileChangeListener listener)

Adds a listener that is informed about changes of the observed file.

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remoteFileChangeListener

public void remoteFileChangeListener(FileChangeListener listener)

Removes a listener that is informed about changes of the observed file.

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fireChangeDetected

protected void fireChangeDetected()

Informs all registered listeners about a change.

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run

public void run()

Checks the file for its modification time and informs the listeners on a change. Then waits the amount of time set.

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Home >> All >> org >> dinopolis >> util >> [ io overview ]	PREV CLASS  NEXT CLASS
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