/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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 org.apache.beam.runners.direct;

import static java.util.Collections.emptyMap;
import static java.util.Collections.emptySet;

import com.google.common.collect.LinkedListMultimap;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import org.apache.beam.sdk.options.PipelineOptionsFactory;
import org.apache.beam.sdk.test.ThreadLeakTracker;
import org.joda.time.Instant;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TestName;
import org.junit.rules.TestRule;

/**
 * Validates some basic behavior for the ExecutorServiceParallelExecutor.
 */
public class ExecutorServiceParallelExecutorTest {

  @Rule
  public final TestRule threadTracker = new ThreadLeakTracker();

  @Rule
  public final TestName testName = new TestName();

  @Test
  public void ensureMetricsThreadDoesntLeak() {
    final DirectGraph graph = DirectGraph.create(
      emptyMap(), emptyMap(), LinkedListMultimap.create(),
      LinkedListMultimap.create(), emptySet(), emptyMap());
    final ExecutorService executorService = Executors.newSingleThreadExecutor(
      new ThreadFactoryBuilder()
        .setDaemon(false)
        .setNameFormat("dontleak_" + getClass().getName() + "#" + testName.getMethodName())
        .build());

    // fake a metrics usage
    executorService.submit(() -> {});

    final EvaluationContext context = EvaluationContext.create(
      PipelineOptionsFactory.create().as(DirectOptions.class),
      MockClock.fromInstant(Instant.now()),
      CloningBundleFactory.create(), graph, emptySet(), executorService);
    ExecutorServiceParallelExecutor
      .create(
        2,
              TransformEvaluatorRegistry.defaultRegistry(context),
              emptyMap(),
              context,
              executorService)
      .stop();
  }
}

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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 org.apache.beam.runners.direct;

import static java.util.Collections.emptyMap;
import static java.util.Collections.emptySet;

import com.google.common.collect.LinkedListMultimap;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import org.apache.beam.sdk.options.PipelineOptionsFactory;
import org.apache.beam.sdk.test.ThreadLeakTracker;
import org.joda.time.Instant;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TestName;
import org.junit.rules.TestRule;

/**
 * Validates some basic behavior for the ExecutorServiceParallelExecutor.
 */
public class ExecutorServiceParallelExecutorTest {

  @Rule
  public final TestRule threadTracker = new ThreadLeakTracker();

  @Rule
  public final TestName testName = new TestName();

  @Test
  public void ensureMetricsThreadDoesntLeak() {
    final DirectGraph graph = DirectGraph.create(
      emptyMap(), emptyMap(), LinkedListMultimap.create(),
      emptySet(), emptyMap());
    final ExecutorService executorService = Executors.newSingleThreadExecutor(
      new ThreadFactoryBuilder()
        .setDaemon(false)
        .setNameFormat("dontleak_" + getClass().getName() + "#" + testName.getMethodName())
        .build());

    // fake a metrics usage
    executorService.submit(() -> {});

    final EvaluationContext context = EvaluationContext.create(
      MockClock.fromInstant(Instant.now()),
      CloningBundleFactory.create(), graph, emptySet(), executorService);
    ExecutorServiceParallelExecutor
      .create(
        2, TransformEvaluatorRegistry.javaSdkNativeRegistry(context,
              PipelineOptionsFactory.create().as(DirectOptions.class)), emptyMap(),
              context,
              executorService)
      .stop();
  }
}

Rebase on master, fix conflicts and adapt test to master state.