Examples of AlarmClock

org.apache.jena.atlas.lib.AlarmClock
An AlarmClock is an object that will make a callback (with a value) at a preset time. Simple abstraction of add/reset/cancel of a Runnable. Currently, backed by {@linkplain ScheduledThreadPoolExecutor}

Examples of org.apache.jena.atlas.lib.AlarmClock

    Callback<?> callback = new Callback<Object>() { @Override
    public void proc(Object arg) {} } ; 
    
    @Test public void alarm_01()
    {
        AlarmClock alarmClock = new AlarmClock() ;
        assertEquals(0, alarmClock.getCount()) ;
        // Very long - never happens.
        Pingback<?> ping = alarmClock.add(callback, 10000000) ;
        assertEquals(1, alarmClock.getCount()) ;
        alarmClock.cancel(ping) ;
        assertEquals(0, alarmClock.getCount()) ;
    }

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Examples of org.apache.jena.atlas.lib.AlarmClock

        assertEquals(0, alarmClock.getCount()) ;
    }
    
    @Test public void alarm_02()
    {
        AlarmClock alarmClock = new AlarmClock() ;
        assertEquals(0, alarmClock.getCount()) ;
        // Short - happens.
        Pingback<?> ping = alarmClock.add(callback, 10) ;
        sleep(100) ;
        assertEquals(0, alarmClock.getCount()) ;
        
        // try to cancel anyway.
        alarmClock.cancel(ping) ;
        assertEquals(0, alarmClock.getCount()) ;
    }

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Examples of org.apache.jena.atlas.lib.AlarmClock

        assertEquals(0, alarmClock.getCount()) ;
    }


    @Test public void alarm_03()
    {
        AlarmClock alarmClock = new AlarmClock() ;
        assertEquals(0, alarmClock.getCount()) ;
        Pingback<?> ping1 = alarmClock.add(callback, 100) ;
        Pingback<?> ping2 = alarmClock.add(callback, 100000) ;
        assertEquals(2, alarmClock.getCount()) ;
        sleep(200) ;
        // ping1 went off.
        assertEquals(1, alarmClock.getCount()) ;
        alarmClock.cancel(ping1) ;
        assertEquals(1, alarmClock.getCount()) ;
        alarmClock.cancel(ping2) ;
        assertEquals(0, alarmClock.getCount()) ;
    }

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Examples of org.apache.jena.atlas.lib.AlarmClock

        assertEquals(0, alarmClock.getCount()) ;
    }


    @Test public void alarm_04()
    {
        AlarmClock alarmClock = new AlarmClock() ;
        assertEquals(0, alarmClock.getCount()) ;
        Pingback<?> ping1 = alarmClock.add(callback, 100) ;
        assertEquals(1, alarmClock.getCount()) ;
        alarmClock.reset(ping1, 2000) ;
        assertEquals(1, alarmClock.getCount()) ;
        sleep(100) ;
        assertEquals(1, alarmClock.getCount()) ;
    }

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Examples of org.apache.jena.atlas.lib.AlarmClock

        assertEquals(1, alarmClock.getCount()) ;
    }
    
    @Test public void alarm_05()
    {
        AlarmClock alarmClock = new AlarmClock() ;
        assertEquals(0, alarmClock.getCount()) ;
        Pingback<?> ping1 = alarmClock.add(callback, 50) ;
        Pingback<?> ping2 = alarmClock.add(callback, 100) ;
        assertEquals(2, alarmClock.getCount()) ;
        alarmClock.reset(ping1, 2000) ;
        assertEquals(2, alarmClock.getCount()) ;
        sleep(200) ;    // ping2 goes off.
        assertEquals(1, alarmClock.getCount()) ;
    }

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