基于Java8的CompletableFuture实现的异步执行工具类_completablefuture工具类

异步执行工具类

前言

基于Java8的CompletableFuture实现的异步执行工具类

package com.jareny.jave.design.thread;

import lombok.extern.slf4j.Slf4j;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import java.util.concurrent.*;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Supplier;
import java.util.stream.Collectors;

@Slf4j
public class AsyncUtil {


    public static ExecutorService executor = new ThreadPoolExecutor(
            // CPU 核数 核心线程
            Runtime.getRuntime().availableProcessors(),
            // CPU 核数 X 2 是最大线程
            Runtime.getRuntime().availableProcessors() * 2,
            10L,
            TimeUnit.SECONDS,
            new LinkedBlockingDeque<>(100),
            Executors.defaultThreadFactory(),
            new ThreadPoolExecutor.AbortPolicy()
    );


    /**
     * 异步批量执行工具类
     *
     * @param list
     * @param function
     * @param <T>
     * @param <R>
     * @return
     */
    public static <T, R> List<R> supplyAsync(List<T> list, Function<T, R> function) {
        if (Objects.isNull(list) || list.isEmpty() || Objects.isNull(function)) {
            return new ArrayList<>();
        }
        List<CompletableFuture<R>> completableFutureList = list.
                stream()
                .filter(Objects::nonNull)
                .map(item -> CompletableFuture.supplyAsync(() -> function.apply(item), executor))
                .collect(Collectors.toList());

        // 返回值
        List<R> result = new ArrayList<>();

        for (CompletableFuture<R> completableFuture : completableFutureList) {
            try {
                R r = completableFuture.get();
                result.add(r);
            } catch (Exception e) {
                log.error("异步执行,发生异常：", e);
            }
        }
        return result;
    }

    /**
     * 异步批量执行工具类
     *
     * @param list
     * @param function
     * @param taskName
     * @param <T>
     * @param <R>
     * @return
     */
    public static <T, R> List<R> supplyAsync(List<T> list, Function<T, R> function, String taskName) {
        if (Objects.isNull(list) || list.isEmpty() || Objects.isNull(function)) {
            return new ArrayList<>();
        }
        List<CompletableFuture<R>> completableFutureList = list.
                stream()
                .filter(Objects::nonNull)
                .map(item -> CompletableFuture.supplyAsync(() -> function.apply(item), executor))
                .collect(Collectors.toList());

        // 返回值
        List<R> result = new ArrayList<>();

        for (CompletableFuture<R> completableFuture : completableFutureList) {
            try {
                R r = completableFuture.get();
                result.add(r);
            } catch (Exception e) {
                log.error("异步执行：{} 任务，发生异常：{}", taskName, e);
            }
        }
        return result;
    }


    /**
     * 异步执行工具类
     *
     * @param t
     * @param function
     * @param <T>
     * @param <R>
     * @return
     */
    public static <T, R> Optional<R> supplyAsync(T t, Function<T, R> function) {
        if (Objects.isNull(t) || Objects.isNull(function)) {
            return Optional.empty();
        }
        // 异步执行
        CompletableFuture<R> completableFuture = CompletableFuture
                .supplyAsync(() -> function.apply(t), executor);
        try {
            return Optional.of(completableFuture.get());
        } catch (Exception e) {
            log.error("异步执行：{} 任务，发生异常：{}", e);
        }
        return Optional.empty();
    }


    /**
     * 异步执行工具类
     *
     * @param t
     * @param function
     * @param taskName
     * @param <T>
     * @param <R>
     * @return
     */
    public static <T, R> Optional<R> supplyAsync(T t, Function<T, R> function, String taskName) {
        if (Objects.isNull(t) || Objects.isNull(function)) {
            return Optional.empty();
        }
        // 异步执行
        CompletableFuture<R> completableFuture = CompletableFuture
                .supplyAsync(() -> function.apply(t), executor);
        try {
            return Optional.of(completableFuture.get());
        } catch (Exception e) {
            log.error("异步执行：{} 任务，发生异常：{}", taskName, e);
        }
        return Optional.empty();
    }


    /**
     * 异步执行工具类
     *
     * @param t
     * @param consumer
     * @param <T>
     * @return
     */
    public static <T> void runAsync(T t, Consumer<T> consumer) {
        if (Objects.isNull(t) || Objects.isNull(consumer)) {
            return;
        }
        // 异步执行
        CompletableFuture.runAsync(() -> consumer.accept(t), executor);
    }

    /**
     * 异步执行工具类
     *
     * @param t
     * @param consumer
     * @param <T>
     * @return
     */
    public static <T> void runAsync(T t, Consumer<T> consumer,String taskName) {
        if (Objects.isNull(t) || Objects.isNull(consumer)) {
            return;
        }
        // 异步执行
        CompletableFuture.runAsync(() -> consumer.accept(t), executor);
        log.error("异步执行：{} 任务，完成！", taskName);
    }

    /**
     * 异步执行工具类
     *
     * @param list
     * @param consumer
     * @param taskName
     * @param <T>
     * @return
     */
    public  static <T> void runAsync(List<T> list, Consumer<T> consumer, String taskName) {
        if (Objects.isNull(list) || list.isEmpty()  || Objects.isNull(consumer)) {
            return;
        }
        // 异步执行
        list.stream().filter(Objects::nonNull)
                .forEach(item->CompletableFuture.runAsync(() -> consumer.accept(item), executor));
        log.info("批量执行%s异步任务成功！",taskName);
    }

    /**
     * 异步执行工具类
     *
     * @param consumer
     * @param <T>
     * @return
     */
    public  static <T> void runAsync(List<T> list, Consumer<T> consumer) {
        if (Objects.isNull(list) || list.isEmpty()  || Objects.isNull(consumer)) {
            return;
        }
        // 异步执行
        list.stream().filter(Objects::nonNull)
                .forEach(item->CompletableFuture.runAsync(() -> consumer.accept(item), executor));
    }

    /**
     * 异步执行工具类
     *
     * @param supplier
     * @param <T>
     * @return
     */
    public  static <T> List<T> supplyAsync(List<T> list, Supplier<T> supplier) {
        if (Objects.isNull(list) || list.isEmpty()  || Objects.isNull(supplier)) {
            return new ArrayList<>();
        }
        // 异步执行
        List<CompletableFuture<T>> completableFutureList = list.stream().filter(Objects::nonNull)
                .map(item -> CompletableFuture.supplyAsync(() -> supplier.get(), executor))
                .collect(Collectors.toList());
        // 返回值
        List<T> result = new ArrayList<>();

        for (CompletableFuture<T> completableFuture : completableFutureList) {
            try {
                T r = completableFuture.get();
                result.add(r);
            } catch (Exception e) {
                log.error("异步执行任务，发生异常：{}", e);
            }
        }
        return result;
    }

    /**
     * 异步执行工具类
     *
     * @param supplier
     * @param <T>
     * @return
     */
    public  static <T> List<T> supplyAsync(List<T> list, Supplier<T> supplier,String taskName) {
        if (Objects.isNull(list) || list.isEmpty()  || Objects.isNull(supplier)) {
            return new ArrayList<>();
        }
        // 异步执行
        List<CompletableFuture<T>> completableFutureList = list.stream().filter(Objects::nonNull)
                .map(item -> CompletableFuture.supplyAsync(() -> supplier.get(), executor))
                .collect(Collectors.toList());
        // 返回值
        List<T> result = new ArrayList<>();

        for (CompletableFuture<T> completableFuture : completableFutureList) {
            try {
                T r = completableFuture.get();
                result.add(r);
            } catch (Exception e) {
                log.error("异步执行：{} 任务，发生异常：{}", taskName, e);
            }
        }
        return result;
    }

    /**
     * 异步执行工具类
     *
     * @param supplier
     * @param <T>
     * @return
     */
    public static <T> Optional<T> supplierAsync(Supplier<T> supplier) {
        if (Objects.isNull(supplier)) {
            return Optional.empty();
        }
        // 异步执行
        CompletableFuture<T> completableFuture = CompletableFuture.supplyAsync(() -> supplier.get(), executor);

        try {
            T t = completableFuture.get();
            return Optional.of(t);
        } catch (Exception e) {
            log.error("异步执行任务，发送异常：{}",e);
        }
        return Optional.empty();
    }

    /**
     * 异步执行工具类
     *
     * @param supplier
     * @param taskName
     * @param <T>
     * @return
     */
    public  static <T> Optional<T> supplierAsync(Supplier<T> supplier, String taskName) {
        if (Objects.isNull(supplier)) {
            return Optional.empty();
        }
        // 异步执行
        try {
            CompletableFuture<T> completableFuture = CompletableFuture.supplyAsync(() -> supplier.get(), executor);
            return Optional.of(completableFuture.get());
        } catch (Exception e) {
            log.error("异步执行{}任务，发送异常：{}",taskName,e);
        }
        return Optional.empty();
    }

    /**
     * 异步执行工具类
     *
     * @param <T>
     * @param <R>
     * @param t
     * @param function
     * @return
     */
    public static <T, R> CompletableFuture<R> completableFuture(T t, Function<T, R> function) {
        if (Objects.isNull(t)) {
            throw new RuntimeException("执行异步任务的入参不能为空");
        }
        if (Objects.isNull(function)) {
            throw new RuntimeException("执行异步任务的方法体不能为空");
        }
        // 返回异步执行
        return CompletableFuture.supplyAsync(() -> function.apply(t), executor);
    }

    /**
     * 异步执行工具类
     *
     * @param <T>
     * @param <R>
     * @param t
     * @param function
     * @return
     */
    public static <T, R> CompletableFuture<R> completableFuture(T t, Function<T, R> function, String taskName) {
        if (Objects.isNull(t)) {
            throw new RuntimeException(String.format("执行异步%s任务的入参不能为空",taskName));
        }
        if (Objects.isNull(function)) {
            throw new RuntimeException(String.format("执行异步%s任务的方法体不能为空",taskName));
        }
        // 返回异步执行
        return CompletableFuture.supplyAsync(() -> function.apply(t), executor);
    }

    /**
     *
     * @param t
     * @param consumer
     * @param <T>
     * @return
     */
    public  static <T> CompletableFuture<Void> completableFuture(T t, Consumer<T> consumer) {
        if (Objects.isNull(t)) {
            throw new RuntimeException(String.format("执行异步任务的入参不能为空"));
        }
        if (Objects.isNull(consumer)) {
            throw new RuntimeException(String.format("执行异步任务的方法体不能为空"));
        }
        // 异步执行
        return CompletableFuture.runAsync(() -> consumer.accept(t), executor);
    }

    /**
     *
     * @param t
     * @param consumer
     * @param taskName
     * @param <T>
     * @return
     */
    public  static <T> CompletableFuture<Void> completableFuture(T t, Consumer<T> consumer, String taskName) {
        if (Objects.isNull(t)) {
            throw new RuntimeException(String.format("执行异步%s任务的入参不能为空",taskName));
        }
        if (Objects.isNull(consumer)) {
            throw new RuntimeException(String.format("执行异步%s任务的方法体不能为空",taskName));
        }
        // 异步执行
        return CompletableFuture.runAsync(() -> consumer.accept(t), executor);
    }

    /**
     *
     * @param supplier
     * @param <T>
     * @return
     */
    public  static <T> CompletableFuture<T> completableFuture(Supplier<T> supplier) {
        if (Objects.isNull(supplier)) {
            throw new RuntimeException(String.format("执行异步任务的方法体不能为空"));
        }
        // 异步执行
        return CompletableFuture.supplyAsync(() -> supplier.get(), executor);
    }

    /**
     *
     * @param supplier
     * @param taskName
     * @param <T>
     * @return
     */
    public  static <T> CompletableFuture<T> completableFuture(Supplier<T> supplier, String taskName) {
        if (Objects.isNull(supplier)) {
            throw new RuntimeException(String.format("执行异步%s任务的方法体不能为空",taskName));
        }
        // 异步执行
        return CompletableFuture.supplyAsync(() -> supplier.get(), executor);
    }

    /**
     * 异步批量执行工具类
     *
     * @param list
     * @param function
     * @param <T>
     * @param <R>
     * @return
     */
    public static <T, R> List<CompletableFuture<R>> completableFutureList(List<T> list, Function<T, R> function) {
        if (Objects.isNull(list) || list.isEmpty() || Objects.isNull(function)) {
            return new ArrayList<>();
        }
        // 异步执行
        return list.stream().filter(Objects::nonNull)
                .map(item -> CompletableFuture.supplyAsync(() -> function.apply(item), executor))
                .collect(Collectors.toList());
    }

    /**
     * 异步批量执行工具类
     *
     * @param list
     * @param consumer
     * @param <T>
     * @return
     */
    public static <T> List<CompletableFuture<Void>> completableFutureList(List<T> list, Consumer<T> consumer) {
        if (Objects.isNull(list) || list.isEmpty() || Objects.isNull(consumer)) {
            return new ArrayList<>();
        }
        // 异步执行
        return list.stream().filter(Objects::nonNull)
                .map(item -> CompletableFuture.runAsync(() -> consumer.accept(item), executor))
                .collect(Collectors.toList());
    }

    /**
     * 异步批量执行工具类
     *
     * @param list
     * @param supplier
     * @param <T>
     * @return
     */
    public static <T> List<CompletableFuture<T>> completableFutureList(List<T> list, Supplier<T> supplier) {
        if (Objects.isNull(list) || list.isEmpty() || Objects.isNull(supplier)) {
            return new ArrayList<>();
        }
        // 异步执行
        return list.stream().filter(Objects::nonNull)
                .map(item -> CompletableFuture.supplyAsync(() -> supplier.get(), executor))
                .collect(Collectors.toList());
    }


}

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