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Dahua ICC Open API SDK for Java

There is a newer version: 1.0.13.10

package com.dahuatech.hutool.core.thread;

import java.util.concurrent.RejectedExecutionHandler;
import java.util.concurrent.ThreadPoolExecutor;

/**
 * 线程拒绝策略枚举
 *
 * 如果设置了maxSize, 当总线程数达到上限, 会调用RejectedExecutionHandler进行处理，此枚举为JDK预定义的几种策略枚举表示
 *
 * @author looly
 * @since 4.1.13
 */
public enum RejectPolicy {

  /** 处理程序遭到拒绝将抛出RejectedExecutionException */
  ABORT(new ThreadPoolExecutor.AbortPolicy()),
  /** 放弃当前任务 */
  DISCARD(new ThreadPoolExecutor.DiscardPolicy()),
  /** 如果执行程序尚未关闭，则位于工作队列头部的任务将被删除，然后重试执行程序（如果再次失败，则重复此过程） */
  DISCARD_OLDEST(new ThreadPoolExecutor.DiscardOldestPolicy()),
  /** 由主线程来直接执行 */
  CALLER_RUNS(new ThreadPoolExecutor.CallerRunsPolicy());

  private RejectedExecutionHandler value;

  RejectPolicy(RejectedExecutionHandler handler) {
    this.value = handler;
  }

  /**
   * 获取RejectedExecutionHandler枚举值
   *
   * @return RejectedExecutionHandler
   */
  public RejectedExecutionHandler getValue() {
    return this.value;
  }
}