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
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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
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Field Details
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ERROR_INVALID_TIMEOUT
public static final java.lang.String ERROR_INVALID_TIMEOUTError string. "timeout less than 1."- See Also:
- Constant Field Values
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Constructor Details
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Watchdog
public Watchdog(long timeout)Constructor for Watchdog.- Parameters:
timeout
- the timeout to use in milliseconds (must be >= 1).
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Method Details
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addTimeoutObserver
Add a timeout observer.- Parameters:
to
- the timeout observer to add.
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removeTimeoutObserver
Remove a timeout observer.- Parameters:
to
- the timeout observer to remove.
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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 interfacejava.lang.Runnable
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