org.apache.lucene.store

## Class RateLimiter.SimpleRateLimiter

- java.lang.Object
- - org.apache.lucene.store.RateLimiter
  - - org.apache.lucene.store.RateLimiter.SimpleRateLimiter

- Enclosing class:
    RateLimiter

      public static class RateLimiter.SimpleRateLimiter
      extends RateLimiter

  Simple class to rate limit IO.

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from class org.apache.lucene.store.RateLimiter

      `RateLimiter.SimpleRateLimiter`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `SimpleRateLimiter(double mbPerSec)` mbPerSec is the MB/sec max IO rate

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `double` | `getMBPerSec()` The current mb per second rate limit.
    `long` | `getMinPauseCheckBytes()` How many bytes caller should add up itself before invoking `RateLimiter.pause(long)`.
    `long` | `pause(long bytes)` Pauses, if necessary, to keep the instantaneous IO rate at or below the target.
    `void` | `setMBPerSec(double mbPerSec)` Sets an updated mb per second rate limit.

    - ### Methods inherited from class java.lang.Object

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

- - ### Constructor Detail

    - #### SimpleRateLimiter

          public SimpleRateLimiter(double mbPerSec)

      mbPerSec is the MB/sec max IO rate

  - ### Method Detail

    - #### setMBPerSec

          public void setMBPerSec(double mbPerSec)

      Sets an updated mb per second rate limit.
      Specified by:
        `setMBPerSec` in class `RateLimiter`

    - #### getMinPauseCheckBytes

          public long getMinPauseCheckBytes()

      Description copied from class: `RateLimiter`
      How many bytes caller should add up itself before invoking `RateLimiter.pause(long)`.
      Specified by:
        `getMinPauseCheckBytes` in class `RateLimiter`

    - #### getMBPerSec

          public double getMBPerSec()

      The current mb per second rate limit.
      Specified by:
        `getMBPerSec` in class `RateLimiter`

    - #### pause

          public long pause(long bytes)

      Pauses, if necessary, to keep the instantaneous IO rate at or below the target. Be sure to only call this method when bytes > `getMinPauseCheckBytes()`, otherwise it will pause way too long!
      Specified by:
        `pause` in class `RateLimiter`
      Returns:
        the pause time in nano seconds

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