@Beta @GwtIncompatible public final class FakeTimeLimiter extends Object implements TimeLimiter
| Constructor and Description |
|---|
FakeTimeLimiter() |
| Modifier and Type | Method and Description |
|---|---|
<T> T |
callUninterruptiblyWithTimeout(Callable<T> callable,
long timeoutDuration,
TimeUnit timeoutUnit)
Invokes a specified Callable, timing out after the specified time limit.
|
<T> T |
callWithTimeout(Callable<T> callable,
long timeoutDuration,
TimeUnit timeoutUnit)
Invokes a specified Callable, timing out after the specified time limit.
|
<T> T |
newProxy(T target,
Class<T> interfaceType,
long timeoutDuration,
TimeUnit timeoutUnit)
Returns an instance of
interfaceType that delegates all method calls to the
target object, enforcing the specified time limit on each call. |
void |
runUninterruptiblyWithTimeout(Runnable runnable,
long timeoutDuration,
TimeUnit timeoutUnit)
Invokes a specified Runnable, timing out after the specified time limit.
|
void |
runWithTimeout(Runnable runnable,
long timeoutDuration,
TimeUnit timeoutUnit)
Invokes a specified Runnable, timing out after the specified time limit.
|
public FakeTimeLimiter()
public <T> T newProxy(T target, Class<T> interfaceType, long timeoutDuration, TimeUnit timeoutUnit)
TimeLimiterinterfaceType that delegates all method calls to the
target object, enforcing the specified time limit on each call. This time-limited
delegation is also performed for calls to Object.equals(java.lang.Object), Object.hashCode(), and
Object.toString().
If the target method call finishes before the limit is reached, the return value or
exception is propagated to the caller exactly as-is. If, on the other hand, the time limit is
reached, the proxy will attempt to abort the call to the target, and will throw an
UncheckedTimeoutException to the caller.
It is important to note that the primary purpose of the proxy object is to return control to the caller when the timeout elapses; aborting the target method call is of secondary concern. The particular nature and strength of the guarantees made by the proxy is implementation-dependent. However, it is important that each of the methods on the target object behaves appropriately when its thread is interrupted.
For example, to return the value of target.someMethod(), but substitute DEFAULT_VALUE if this method call takes over 50 ms, you can use this code:
TimeLimiter limiter = . . .;
TargetType proxy = limiter.newProxy(
target, TargetType.class, 50, TimeUnit.MILLISECONDS);
try {
return proxy.someMethod();
} catch (UncheckedTimeoutException e) {
return DEFAULT_VALUE;
}
newProxy in interface TimeLimitertarget - the object to proxyinterfaceType - the interface you wish the returned proxy to implementtimeoutDuration - with timeoutUnit, the maximum length of time that callers are willing to
wait on each method call to the proxytimeoutUnit - with timeoutDuration, the maximum length of time that callers are willing to
wait on each method call to the proxypublic <T> T callWithTimeout(Callable<T> callable, long timeoutDuration, TimeUnit timeoutUnit) throws ExecutionException
TimeLimiterTimeoutException to the caller.callWithTimeout in interface TimeLimitercallable - the Callable to executetimeoutDuration - with timeoutUnit, the maximum length of time to waittimeoutUnit - with timeoutDuration, the maximum length of time to waitExecutionException - if callable throws a checked exceptionpublic <T> T callUninterruptiblyWithTimeout(Callable<T> callable, long timeoutDuration, TimeUnit timeoutUnit) throws ExecutionException
TimeLimiterTimeoutException to the caller.
The difference with TimeLimiter.callWithTimeout(Callable, long, TimeUnit) is that this method
will ignore interrupts on the current thread.
callUninterruptiblyWithTimeout in interface TimeLimitercallable - the Callable to executetimeoutDuration - with timeoutUnit, the maximum length of time to waittimeoutUnit - with timeoutDuration, the maximum length of time to waitExecutionException - if callable throws a checked exceptionpublic void runWithTimeout(Runnable runnable, long timeoutDuration, TimeUnit timeoutUnit)
TimeLimiterTimeoutException to the caller.runWithTimeout in interface TimeLimiterrunnable - the Runnable to executetimeoutDuration - with timeoutUnit, the maximum length of time to waittimeoutUnit - with timeoutDuration, the maximum length of time to waitpublic void runUninterruptiblyWithTimeout(Runnable runnable, long timeoutDuration, TimeUnit timeoutUnit)
TimeLimiterTimeoutException to the caller.
The difference with TimeLimiter.runWithTimeout(Runnable, long, TimeUnit) is that this method
will ignore interrupts on the current thread.
runUninterruptiblyWithTimeout in interface TimeLimiterrunnable - the Runnable to executetimeoutDuration - with timeoutUnit, the maximum length of time to waittimeoutUnit - with timeoutDuration, the maximum length of time to waitCopyright © 2010–2017. All rights reserved.