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Resilience4j is a lightweight, easy-to-use fault tolerance library designed for Java8 and functional programming

There is a newer version: 2.2.0

/*
 *
 *  Copyright 2019 authors
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *
 */
package io.github.resilience4j.kotlin

import kotlinx.coroutines.Job
import java.util.concurrent.CancellationException
import kotlin.coroutines.CoroutineContext

internal fun isCancellation(coroutineContext: CoroutineContext, error: Throwable? = null): Boolean {

    // If job is missing then there is no cancellation
    val job = coroutineContext[Job] ?: return false

    return job.isCancelled || (error != null && error is CancellationException)
}