New TimedSemaphore class
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Key: LANG-560
URL: https://issues.apache.org/jira/browse/LANG-560
Project: Commons Lang
Issue Type: New Feature
Reporter: Oliver Heger
Fix For: 3.0
{{TimedSemaphore}} is a specialized Semaphore implementation that also has a
timing component: In a configurable time period a given number of permits is
available. Threads call the semaphore's {{acquire()}} method to request a
permit. When no more permits are available {{acquire()}} blocks the calling
thread. At the end of the time period the permits are restored, and all
blocking threads are waked up.
The main use case for this class is to provide a convenient means for
controlling the load produced by a process. When used correctly,
{{TimedSemaphore}} ensures that only a given number of steps (e.g. database
queries, file operations, or computations) are performed in a specific time
period. This may be useful for many applications.
More information including a usage example can be found in the Javadocs of the
class. Comments or suggestions for improvements are appreciated.
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