io.smallrye.faulttolerance.core.bulkhead

Class ThreadPoolBulkhead<V>

java.lang.Object

io.smallrye.faulttolerance.core.bulkhead.BulkheadBase<Future<V>>

io.smallrye.faulttolerance.core.bulkhead.ThreadPoolBulkhead<V>

Type Parameters:

V - type of the Future result

All Implemented Interfaces:

FaultToleranceStrategy<Future<V>>

public class ThreadPoolBulkhead<V>
extends BulkheadBase<Future<V>>

The implementation intentionally doesn't leverage an executor with a limited queue but limits the task intake with Semaphore
Proper removal from executor's queue is not possible for MicroProfile Context Propagation. Also, the cost of removal from a linked queue is large, and the current solution should should perform much better.

Nested Class Summary

Nested classes/interfaces inherited from class io.smallrye.faulttolerance.core.bulkhead.BulkheadBase

BulkheadBase.MetricsRecorder

Constructor Summary

Constructors

Constructor and Description
ThreadPoolBulkhead(FaultToleranceStrategy<Future<V>> delegate, String description, ExecutorService executor, int size, int queueSize, BulkheadBase.MetricsRecorder recorder)

Method Summary

Modifier and Type	Method and Description
Future<V>	apply(InvocationContext<Future<V>> ctx) Apply the fault tolerance strategy around the target Callable.

Methods inherited from class java.lang.Object

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

Constructor Detail

ThreadPoolBulkhead

public ThreadPoolBulkhead(FaultToleranceStrategy<Future<V>> delegate,
                          String description,
                          ExecutorService executor,
                          int size,
                          int queueSize,
                          BulkheadBase.MetricsRecorder recorder)

Method Detail

apply

public Future<V> apply(InvocationContext<Future<V>> ctx)
                throws Exception

Description copied from interface: FaultToleranceStrategy

Apply the fault tolerance strategy around the target Callable. The Callable is wrapped in an InvocationContext.

Parameters:

ctx - the InvocationContext wrapping the Callable guarded by this fault tolerance strategy

Returns:

result computed by the target Callable

Throws:

Exception - if result couldn't be computed