Field Detail

• protected boolean active

• private java.util.List<DirectoryWatcher.FileChangeListener> listeners

• protected long sleepTime

Method Detail

• public void addListener(FileChangeListener listener)

  Adds a file listener that can react to change events

  Parameters:

  listener - The file listener

• public abstract void addWatchDirectory(java.io.File dir, java.util.List<java.lang.String> fileExtensions)

  Adds a directory to watch for the given file and extensions. No String in the fileExtensions list can start with a dot (DirectoryWatcher guarantees that)

  Parameters:

  dir - The directory

  fileExtensions - The extensions

• public abstract void addWatchFile(java.io.File fileToWatch)

  Adds a file to the watch list

  Parameters:

  fileToWatch - The file to watch

• protected void fireOnChange(java.io.File file)

• protected void fireOnNew(java.io.File file)

• public static java.lang.String getFilenameExtension(java.lang.String path)

  Extract the filename extension from the given path, e.g. "mypath/myfile.txt" -> "txt".

  Parameters:

  path - the file path (may be null)

  Returns:

  the extracted filename extension, or null if none

• protected boolean isValidDirectoryToMonitor(java.io.File file)

• protected boolean isValidFileToMonitor(java.io.File file, java.util.Collection<java.lang.String> fileExtensions)

• public void removeListener(FileChangeListener listener)

  Removes a file listener from the current list

  Parameters:

  listener - The file listener

• public void setActive(boolean active)

  Sets whether to stop the directory watcher

  Parameters:

  active - False if you want to stop watching

• public void setSleepTime(long sleepTime)

  Sets the amount of time to sleep between checks

  Parameters:

  sleepTime - The sleep time