/*
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* Copyright 2017-2020 吴学文 and java110 team.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.java110.core.factory;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Vector;
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import java.util.concurrent.Callable;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.Future;
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/**
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* @ClassName Java110ThreadPoolFactory
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* @Description java110提供线程池工厂类
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* @Author wuxw
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* @Date 2021/1/14 21:04
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* @Version 1.0
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* add by wuxw 2021/1/14
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**/
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public class Java110ThreadPoolFactory<T> {
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public static final int JAVA110_DEFAULT_THREAD_NUM = 5;
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private Vector<Future<T>> futureList = null;
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ExecutorService executor = null;
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public static Java110ThreadPoolFactory getInstance() {
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return new Java110ThreadPoolFactory();
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}
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/**
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* 创建 线程池
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*
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* @param defaultThreadNum 线程数量
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* @return
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*/
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public Java110ThreadPoolFactory<T> createThreadPool(int defaultThreadNum) {
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futureList = new Vector<>();
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executor = Executors.newFixedThreadPool(defaultThreadNum);
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return this;
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}
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public Java110ThreadPoolFactory submit(Callable<T> task) {
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Future<T> result = executor.submit(task);
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futureList.add(result);
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return this;
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}
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public List<T> get() {
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List<T> result = new LinkedList<>();
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for (Future<T> future :
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futureList) {
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try {
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result.add(future.get());
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} catch (Exception e) {
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result.add(null);
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}
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}
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return result;
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}
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public void stop() {
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executor.shutdown();
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}
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}
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