断言类

public final class Assert {

    private Assert() {
    }

    public static void notNull(Object object) {
        if (object == null) {
            throw new ApiRuntimeException(ErrorCode.SYSTEM_PARAM_ERROR_IS_NULL);
        }
    }

    public static void notNull(Object... object) {
        for (Object obj : object) {
            if (obj == null) {
                throw new ApiRuntimeException(ErrorCode.SYSTEM_PARAM_ERROR_IS_NULL);
            }
        }
    }

    public static void isPositive(Long number) {
        if (number == null || number <= 0) {
            throw new ApiRuntimeException(ErrorCode.SYSTEM_PARAM_ERROR);
        }
    }

    public static void isPositive(Long... number) {
        for (Long num : number) {
            if (num == null || num <= 0) {
                throw new ApiRuntimeException(ErrorCode.SYSTEM_PARAM_ERROR);
            }
        }
    }

    public static void isPositive(Integer number) {
        if (number == null || number <= 0) {
            throw new ApiRuntimeException(ErrorCode.SYSTEM_PARAM_ERROR);
        }
    }

    public static void isPositive(Integer... number) {
        for (Integer num : number) {
            if (num == null || num <= 0) {
                throw new ApiRuntimeException(ErrorCode.SYSTEM_PARAM_ERROR);
            }
        }
    }

    public static void notEmpty(String str, ErrorCode errorCode) {
        if (StringUtils.isEmpty(str)) {
            throw new ApiRuntimeException(errorCode);
        }
    }

    public static void notBlank(String str, ErrorCode errorCode) {
        if (StringUtils.isBlank(str)) {
            throw new ApiRuntimeException(errorCode);
        }
    }

    public static void isTrue(boolean condition, ErrorCode errorCode) {
        if (!condition) {
            throw new ApiRuntimeException(errorCode);
        }
    }
}

断言类，用来在业务类之前判断参数。