Package org.apache.tools.ant.util

Class Watchdog

java.lang.Object
org.apache.tools.ant.util.Watchdog
All Implemented Interfaces:
java.lang.Runnable
public class Watchdog
extends java.lang.Object
implements java.lang.Runnable
Generalization of ExecuteWatchdog
Since:
Ant 1.5
See Also:
ExecuteWatchdog

  • Field Summary

    Fields 
    Modifier and Type Field Description
    static java.lang.String ERROR_INVALID_TIMEOUT
    Error string.

  • Constructor Summary

    Constructors 
    Constructor Description
    Watchdog​(long timeout)
    Constructor for Watchdog.

  • Method Summary

    Modifier and Type Method Description
    void addTimeoutObserver​(TimeoutObserver to)
    Add a timeout observer.
    protected void fireTimeoutOccured()
    Inform the observers that a timeout has occurred.
    void removeTimeoutObserver​(TimeoutObserver to)
    Remove a timeout observer.
    void run()
    The run method of the watch dog thread.
    void start()
    Start the watch dog.
    void stop()
    Stop the watch dog.

    Methods inherited from class java.lang.Object

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

  • Field Details

  • Constructor Details

    • Watchdog

      public Watchdog​(long timeout)
      Constructor for Watchdog.
      Parameters:
      timeout - the timeout to use in milliseconds (must be >= 1).

  • Method Details

    • addTimeoutObserver

      public void addTimeoutObserver​(TimeoutObserver to)
      Add a timeout observer.
      Parameters:
      to - the timeout observer to add.

    • removeTimeoutObserver

      public void removeTimeoutObserver​(TimeoutObserver to)
      Remove a timeout observer.
      Parameters:
      to - the timeout observer to remove.

    • fireTimeoutOccured

      protected final void fireTimeoutOccured()
      Inform the observers that a timeout has occurred. This happens in the watchdog thread.

    • start

      public void start()
      Start the watch dog.

    • stop

      public void stop()
      Stop the watch dog.

    • run

      public void run()
      The run method of the watch dog thread. This simply does a wait for the timeout time, and if the stop flag has not been set when the wait has returned or has been interrupted, the watch dog listeners are informed.
      Specified by:
      run in interface java.lang.Runnable