com.oracle.bedrock.deferred.Concurrent Maven / Gradle / Ivy
/*
* File: Concurrent.java
*
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* the Common Development and Distribution License 1.0 (the "License").
*
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*
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*
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* file and include the License file LICENSE.txt.
*
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*/
package com.oracle.bedrock.deferred;
/**
* Supporting interfaces for concurrent assertion.
*
* Copyright (c) 2016. All Rights Reserved. Oracle Corporation.
* Oracle is a registered trademark of Oracle Corporation and/or its affiliates.
*
* @see Concurrently
*
* @author Brian Oliver
*/
public class Concurrent
{
/**
* A mechanism to check the status and control the evaluation of an assertion, typically
* occurring on another {@link Thread}.
*/
interface Assertion extends AutoCloseable
{
/**
* Checks the current state of the {@link Assertion}.
*
* @throws AssertionError if the {@link Assertion} has failed
*/
void check() throws AssertionError;
/**
* Stops evaluation of the {@link Assertion}.
*/
@Override
void close();
/**
* Determines if the {@link Assertion} has been closed.
*
* @return true> when the {@link Assertion} is closed and not longer being evaluated
* false otherwise
*/
boolean isClosed();
/**
* Ensures that a {@link Throwable} doesn't contain any suppressed {@link AssertionError}s and
* if it does, re-throws the first encountered.
*
* @param throwable the {@link Throwable} to examine
*
* @throws AssertionError the first suppressed {@link AssertionError} encountered
*/
static void check(Throwable throwable) throws AssertionError
{
if (throwable != null)
{
for (int i = 0; i < throwable.getSuppressed().length; i++)
{
if (throwable.getSuppressed()[i] instanceof AssertionError)
{
throw(AssertionError) throwable.getSuppressed()[i];
}
}
}
}
}
}