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Common concurrent API utils for Java

There is a newer version: 10.1.0

/*
 * MIT License
 *
 * Copyright (c) 2023 Qingtian Wang
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */

package coco4j;

import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import javax.annotation.Nonnull;

/** */
public class MoreExecutors {
  private MoreExecutors() {}

  /**
   * @return single thread executor with unlimited work queue capacity and blocking retry execution
   *     rejection handling policy
   */
  public static @Nonnull ThreadPoolExecutor newSingleThreadBlockingResubmitExecutor() {
    return newSingleThreadBlockingResubmitExecutor(Integer.MAX_VALUE);
  }

  /**
   * @param workQueueCapacity max size of work queue
   * @return single thread executor with specified work queue capacity and blocking retry execution
   *     rejection handling policy
   */
  public static @Nonnull ThreadPoolExecutor newSingleThreadBlockingResubmitExecutor(
      int workQueueCapacity) {
    return new ThreadPoolExecutor(
        1,
        1,
        0,
        TimeUnit.MILLISECONDS,
        new LinkedBlockingQueue<>(workQueueCapacity),
        RejectedExecutionHandlers.blockingResubmitPolicy());
  }
}