Package org.eclipse.jetty.util.thread

Class ThreadPoolBudget

java.lang.Object

org.eclipse.jetty.util.thread.ThreadPoolBudget

public class ThreadPoolBudget
extends java.lang.Object

A budget of required thread usage, used to warn or error for insufficient configured threads.

See Also:

ThreadPool.SizedThreadPool.getThreadPoolBudget()

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ThreadPoolBudget.Lease
class	ThreadPoolBudget.Leased	An allocation of threads

Constructor Summary

Constructors

Constructor	Description
ThreadPoolBudget(ThreadPool.SizedThreadPool pool)	Construct a budget for a SizedThreadPool, with the warning level set by heuristic.
ThreadPoolBudget(ThreadPool.SizedThreadPool pool, int warnAt)

Method Summary

Modifier and Type	Method	Description
void	check()	Check registered allocations against the budget.
ThreadPool.SizedThreadPool	getSizedThreadPool()
static ThreadPoolBudget.Lease	leaseFrom(java.util.concurrent.Executor executor, java.lang.Object leasee, int threads)
ThreadPoolBudget.Lease	leaseTo(java.lang.Object leasee, int threads)
void	reset()

Methods inherited from class java.lang.Object

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

Constructor Detail

ThreadPoolBudget

public ThreadPoolBudget(ThreadPool.SizedThreadPool pool)

Construct a budget for a SizedThreadPool, with the warning level set by heuristic.

Parameters:

pool - The pool to budget thread allocation for.

ThreadPoolBudget

public ThreadPoolBudget(ThreadPool.SizedThreadPool pool,
                        int warnAt)

Parameters:

pool - The pool to budget thread allocation for.

warnAt - The level of free threads at which a warning is generated.

Method Detail

getSizedThreadPool

public ThreadPool.SizedThreadPool getSizedThreadPool()

reset

public void reset()

leaseTo

public ThreadPoolBudget.Lease leaseTo(java.lang.Object leasee,
                                      int threads)

check

public void check()
           throws java.lang.IllegalStateException

Check registered allocations against the budget.

Throws:

java.lang.IllegalStateException - if insufficient threads are configured.

leaseFrom

public static ThreadPoolBudget.Lease leaseFrom(java.util.concurrent.Executor executor,
                                               java.lang.Object leasee,
                                               int threads)