Java8 对Stream，Lambda表达式使用过程中的注意

如果我们使用foreach循环时，并使用lambda表达式进行代码的业务逻辑实现时，我们不能抛异常，针对这种情况，个人写了个工具类，来是我们的异常可以正常抛出去

 1.工具类如下

package com.seage.tjsafety.common.util.commonUtils;

import com.seage.commons.exception.SeageException;

import java.util.Comparator;
import java.util.List;
import java.util.Optional;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Predicate;
import java.util.stream.Collectors;

/**
 * @author 王涛涛
 * @date 2018/8/7 14:02
 */
public class StreamUtils {
    public static  List map(List list, Function function){
        return list.stream().map(function).collect(Collectors.toList());
    }

    public static  List sort(List list, Comparator comparator){
        return list.stream().sorted(comparator).collect(Collectors.toList());
    }

    public static  List filter(List list, Predicate predicate){
        return list.stream().filter(predicate).collect(Collectors.toList());
    }

    public static T max(List list,Predicate predicate,Comparator comparator){
        Optional max = list.stream().filter(predicate).max(comparator);
        return max.orElse(null);
    }
    
    public static  Consumer throwingConsumerWrapper(ThrowConsumer consumer){
        return i-> {
            try {
                consumer.accept(i);
            }catch (SeageException e){
                throw e;
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        };
    }
}

2.使用方式如下：

       interchangeDataDto.getRampDataDtos().forEach(StreamUtils.throwingConsumerWrapper(rampDataDto -> {
         if(CollectionUtils.isEmpty(rampDataDto.getStandardAcrossDataDtos()
                )){
                    throw new SeageDataException(ConstantUtils.ERROR_CODE_PARAMS,"匝道标准横断面数据不能为空","interchangeData");
                }
                }
            }));