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moved fork-join examples from core-java-concurrency-advanced to core-java-concurrency-advanced-2

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fejera
2019-09-29 11:37:53 +02:00
parent 582de7b60e
commit 487c0df482
6 changed files with 2 additions and 2 deletions
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94
core-java-modules/core-java-concurrency-advanced/src/test/java/com/baeldung/java8/Java8ForkJoinIntegrationTest.java
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@@ -1,94 +0,0 @@
package com.baeldung.java8;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.util.Random;
import java.util.concurrent.ForkJoinPool;
import org.junit.Before;
import org.junit.Test;
import com.baeldung.forkjoin.CustomRecursiveAction;
import com.baeldung.forkjoin.CustomRecursiveTask;
import com.baeldung.forkjoin.util.PoolUtil;
public class Java8ForkJoinIntegrationTest {
private int[] arr;
private CustomRecursiveTask customRecursiveTask;
@Before
public void init() {
Random random = new Random();
arr = new int[50];
for (int i = 0; i < arr.length; i++) {
arr[i] = random.nextInt(35);
}
customRecursiveTask = new CustomRecursiveTask(arr);
}
@Test
public void callPoolUtil_whenExistsAndExpectedType_thenCorrect() {
ForkJoinPool forkJoinPool = PoolUtil.forkJoinPool;
ForkJoinPool forkJoinPoolTwo = PoolUtil.forkJoinPool;
assertNotNull(forkJoinPool);
assertEquals(2, forkJoinPool.getParallelism());
assertEquals(forkJoinPool, forkJoinPoolTwo);
}
@Test
public void callCommonPool_whenExistsAndExpectedType_thenCorrect() {
ForkJoinPool commonPool = ForkJoinPool.commonPool();
ForkJoinPool commonPoolTwo = ForkJoinPool.commonPool();
assertNotNull(commonPool);
assertEquals(commonPool, commonPoolTwo);
}
@Test
public void executeRecursiveAction_whenExecuted_thenCorrect() {
CustomRecursiveAction myRecursiveAction = new CustomRecursiveAction("ddddffffgggghhhh");
ForkJoinPool.commonPool().invoke(myRecursiveAction);
assertTrue(myRecursiveAction.isDone());
}
@Test
public void executeRecursiveTask_whenExecuted_thenCorrect() {
ForkJoinPool forkJoinPool = ForkJoinPool.commonPool();
forkJoinPool.execute(customRecursiveTask);
int result = customRecursiveTask.join();
assertTrue(customRecursiveTask.isDone());
forkJoinPool.submit(customRecursiveTask);
int resultTwo = customRecursiveTask.join();
assertTrue(customRecursiveTask.isDone());
}
@Test
public void executeRecursiveTaskWithFJ_whenExecuted_thenCorrect() {
CustomRecursiveTask customRecursiveTaskFirst = new CustomRecursiveTask(arr);
CustomRecursiveTask customRecursiveTaskSecond = new CustomRecursiveTask(arr);
CustomRecursiveTask customRecursiveTaskLast = new CustomRecursiveTask(arr);
customRecursiveTaskFirst.fork();
customRecursiveTaskSecond.fork();
customRecursiveTaskLast.fork();
int result = 0;
result += customRecursiveTaskLast.join();
result += customRecursiveTaskSecond.join();
result += customRecursiveTaskFirst.join();
assertTrue(customRecursiveTaskFirst.isDone());
assertTrue(customRecursiveTaskSecond.isDone());
assertTrue(customRecursiveTaskLast.isDone());
assertTrue(result != 0);
}
}