Sleeper (Apache HBase 1.2.12 API)

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java.lang.Object
- org.apache.hadoop.hbase.util.Sleeper

```
@InterfaceAudience.Private
public class Sleeper
extends Object
```
Sleeper for current thread. Sleeps for passed period. Also checks passed boolean and if interrupted, will return if the flag is set (rather than go back to sleep until its sleep time is up).

Field Summary

Fields
Modifier and Type	Field and Description
`private static org.apache.commons.logging.Log`	`LOG`
`private static long`	`MINIMAL_DELTA_FOR_LOGGING`
`private int`	`period`
`private Object`	`sleepLock`
`private Stoppable`	`stopper`
`private boolean`	`triggerWake`

Constructor Summary

Constructors
Constructor and Description

Sleeper(int sleep, Stoppable stopper)

Method Summary

Methods
Modifier and Type	Method and Description
`int`	`getPeriod()`
`void`	`skipSleepCycle()` If currently asleep, stops sleeping; if not asleep, will skip the next sleep cycle.
`void`	`sleep()` Sleep for period.
`void`	`sleep(long startTime)` Sleep for period adjusted by passed `startTime`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - LOG
```
private static final org.apache.commons.logging.Log LOG
```
  - period
```
private final int period
```
  - stopper
```
private final Stoppable stopper
```
  - MINIMAL_DELTA_FOR_LOGGING
```
private static final long MINIMAL_DELTA_FOR_LOGGING
```
    See Also:
    Constant Field Values
  - sleepLock
```
private final Object sleepLock
```
  - triggerWake
```
private boolean triggerWake
```
- Constructor Detail
  - Sleeper
```
public Sleeper(int sleep,
       Stoppable stopper)
```
    Parameters:
    sleep - sleep time in milliseconds
    stopper - When Stoppable.isStopped() is true, this thread will cleanup and exit cleanly.
- Method Detail
  - sleep
```
public void sleep()
```
    Sleep for period.
  - skipSleepCycle
```
public void skipSleepCycle()
```
    If currently asleep, stops sleeping; if not asleep, will skip the next sleep cycle.
  - sleep
```
public void sleep(long startTime)
```
    Sleep for period adjusted by passed startTime
    
    Parameters:
    startTime - Time some task started previous to now. Time to sleep will be docked current time minus passed startTime.
  - getPeriod
```
public final int getPeriod()
```
    Returns:
    the sleep period in milliseconds

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