JAVA对象排序之获取最小负载数

package com.opensource.sort;

import java.util.Arrays;

import java.util.Comparator;

import java.util.List;

import java.util.Random;

import java.util.concurrent.CopyOnWriteArrayList;

import org.apache.commons.collections.CollectionUtils;

/**

*

* @author Cache John

* @email 550595698@qq.com

*

*/

public class ComparatorSort

{

private static final List<AogInfo> avaibleAogList = new CopyOnWriteArrayList<AogInfo>();

/**

* 获取最小负载数

*

* @param avaibleAogList

* @return

*/

private static AogInfo getMinLoadAogInfo(final List<AogInfo> avaibleAogList)

{

AogInfo aogInfo = null;

if (CollectionUtils.isNotEmpty(avaibleAogList))

{

AogInfo[] arrays = new AogInfo[avaibleAogList.size()];

avaibleAogList.toArray(arrays);

Arrays.sort(arrays, new Comparator<AogInfo>()

{

@Override

public int compare(AogInfo o1, AogInfo o2)

{

return (int)(o1.getAssignNo() - o2.getAssignNo());

}

});

aogInfo = arrays[0];

}

return aogInfo;

}

/**

* @param args

*/

public static void main(String[] args)

{

// 生成随即对象

Random random = new Random();

for (int i = 0; i < 5; i++)

{

avaibleAogList.add(new AogInfo(random.nextInt(100)));

}

// 生成随即对象

System.out.println("生成随即对象为:");

for (AogInfo o : avaibleAogList)

{

System.out.println(o.getAssignNo());

}

// 获取最小随即对象

System.out.println("获取最小随即对象为:" + getMinLoadAogInfo(avaibleAogList).toString());

}

}

class AogInfo

{

private int assignNo;

public AogInfo(int assignNo)

{

this.assignNo = assignNo;

}

public int getAssignNo()

{

return assignNo;

}

public void setAssignNo(int assignNo)

{

this.assignNo = assignNo;

}

@Override

public String toString()

{

return "AogInfo [assignNo=" + assignNo + "]";

}

}