Package org.aksw.commons.util.healthcheck

Class HealthcheckRunner<T>

java.lang.Object

org.aksw.commons.util.healthcheck.HealthcheckRunner<T>

All Implemented Interfaces:

Runnable, Callable<T>

public class HealthcheckRunner<T>
extends Object
implements Callable<T>, Runnable

Run a configurable (health check) action at fixed intervals until this action longer raises an exception. Fatal conditions can be configured to abort the health check early.

Author:

raven

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	HealthcheckRunner.Builder<X>

Field Summary

Fields

Modifier and Type	Field	Description
protected Callable<? extends T>	action
protected List<java.util.function.Supplier<Boolean>>	continuationConditions
protected List<java.util.function.Predicate<? super Throwable>>	fatalConditions
protected long	interval
protected TimeUnit	intervalTimeUnit
protected boolean	isAborted
protected long	retryCount
protected Thread	thread	The thread that called run()

Constructor Summary

Constructors

Constructor	Description
HealthcheckRunner(long retryCount, long interval, TimeUnit intervalTimeUnit, Callable<? extends T> action, List<java.util.function.Predicate<? super Throwable>> fatalConditions, List<java.util.function.Supplier<Boolean>> continuationConditions)

Method Summary

Modifier and Type	Method	Description
void	abort()
static HealthcheckRunner.Builder<Void>	builder()
T	call()
boolean	isAborted()
boolean	isConditionallyAborted()
void	run()	Prefer this method if the result should be ignored

Methods inherited from class java.lang.Object

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

Field Detail

retryCount

protected long retryCount

interval

protected long interval

intervalTimeUnit

protected TimeUnit intervalTimeUnit

action

protected Callable<? extends T> action

fatalConditions

protected List<java.util.function.Predicate<? super Throwable>> fatalConditions

continuationConditions

protected List<java.util.function.Supplier<Boolean>> continuationConditions

isAborted

protected boolean isAborted

thread

protected volatile Thread thread

The thread that called run()

Constructor Detail

HealthcheckRunner

public HealthcheckRunner(long retryCount,
                         long interval,
                         TimeUnit intervalTimeUnit,
                         Callable<? extends T> action,
                         List<java.util.function.Predicate<? super Throwable>> fatalConditions,
                         List<java.util.function.Supplier<Boolean>> continuationConditions)

Method Detail

builder

public static HealthcheckRunner.Builder<Void> builder()

abort

public void abort()

isAborted

public boolean isAborted()

isConditionallyAborted

public boolean isConditionallyAborted()

run

public void run()

Prefer this method if the result should be ignored

Specified by:

run in interface Runnable

call

public T call()

Specified by:

call in interface Callable<T>