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这是一个dc系列工具的基础包, 包含一些基础的类及依赖

There is a newer version: 1.0.7

package com.developcollect.dcinfra.utils;


/**
 * lambda工具类
 *
 * @author zak
 * @since 1.0.0
 */
public class LambdaUtil {

    /**
     * 什么都不做
     * @param objs
     * @return R
     * @author zak
     * @date 2020/8/24 10:55
     */
    public static  R doNothing(Object... objs) {
        return null;
    }

    /**
     * 同{@link #doNothing(Object...)}
     */
    public static  R nop(Object... objs) {
        // nop
        return null;
    }

    /**
     * 编写一个泛型方法对异常进行包装
     * 从而绕过受检异常在编译时编译不通过的错误
     *
     * @param e   异常
     * @param  返回值类型
     * @param  异常类型
     * @throws E 异常
     * @author zak
     * @since 1.0.0
     */
    public static  R doThrow(Throwable e) throws E {
        throw (E) e;
    }

    /**
     * 同{@link #doThrow(Throwable)}
     */
    public static  R raise(Throwable e) throws E {
        throw (E) e;
    }

    /**
     * 通过函数式接口包装原有含受检异常的代码， 将受检异常通过泛型绕过编译错误
     *
     * @param doThrowWrapper 异常包装
     * @param             返回值类型
     * @return 返回值
     * @author zak
     * @since 1.0.0
     */
    public static  T doThrow(DoThrowWrapper doThrowWrapper) {
        try {
            return doThrowWrapper.get();
        } catch (Throwable throwable) {
            return doThrow(throwable);
        }
    }

    /**
     * 同{@link #doThrow(DoThrowWrapper)}
     */
    public static  T raise(DoThrowWrapper doThrowWrapper) {
        return doThrow(doThrowWrapper);
    }


    /**
     * 异常代码包装
     *
     * @author zak
     * @since 1.0.0
     */
    @FunctionalInterface
    public interface DoThrowWrapper {
        T get() throws Throwable;
    }
}