TimeWatch程序耗时统计
作者:互联网
调用方法:
/**
*
* @title: 程序时间统计类TimeWatchUtil
* @time: 2019年5月28日
*
*/
public class TimeWatchTest {
public static void main(String[] args) throws InterruptedException {
TimeWatchUtil tw = TimeWatchUtil.createTimeWatch("TtimeWatch====:");
Thread.sleep(100);
tw.addStep("步骤1");
Thread.sleep(200);
tw.addStep("步骤2");
Thread.sleep(300);
tw.addStep("步骤3");
Thread.sleep(400);
tw.addStep("步骤4");
if (tw != null) {
System.out.println(tw.outputTimeList());
}
//[TIMEWATCH] TtimeWatch====::1000 [DETAILS] 步骤1:100 步骤2:200 步骤3:300 步骤4:400
}
}
工具类:
package com.tt;
import java.util.ArrayList;
import java.util.List;
/**
*
* description:主要用来调试程序,观察程序运行每一步所用的时间
*
*/
public class TimeWatchUtil {
/**
* 创建开始时间
*/
private long start;
/**
* 节点数据(一般保存结束时间数据)
*/
private List<Object> sections;
/**
* 节点名称
*/
private List<Object> sectionNames;
/**
* 观察名称,下面包括很多的sectionNames,watchName属于sectionNames的整体,便于观察定位
*/
private String watchName;
public static TimeWatchUtil createTimeWatch(String watchName) {
TimeWatchUtil timeWatch = new TimeWatchUtil();
timeWatch.watchName = watchName;
return timeWatch;
}
protected TimeWatchUtil() {
sections = new ArrayList<>();// 初始化sections
sectionNames = new ArrayList<>();// 初始化sectionNames
start = System.currentTimeMillis();// 当前系统开始时间
}
public void addStep(String stepName) {
sectionNames.add(stepName);// 每一步节点的名称
sections.add(Long.valueOf(System.currentTimeMillis()));// 节点开始时间
}
public String outputTimeList() {
watchName = watchName.trim();
StringBuffer outStr = new StringBuffer();// 整体观察名称
outStr.append("[TIMEWATCH] ");
outStr.append(watchName);
outStr.append(":");
outStr.append(" [DETAILS] ");
// 输出每一个节点的名称和花费时间
long last = start;
for (int i = 0; i < sections.size(); i++) {
long temp = ((Long) sections.get(i)).longValue();
outStr.append("" + (String) sectionNames.get(i) + ":");
outStr.append((double) (temp - last));
outStr.append(" ");
last = temp;
}
// 总体花费时间
long totalWaste = 0;
if (sections != null && sections.size() > 0) {
totalWaste = ((Long) sections.get(sections.size() - 1)).longValue() - start;
}
// 将总体花费时间插入到名称watchName的后面。"[TIMEWATCH] "和":"长度是13
outStr.insert(watchName.length() + 13, totalWaste);
return outStr.toString();
}
}
标签:TimeWatchUtil,watchName,程序,tw,耗时,TimeWatch,outStr,sections,append 来源: https://blog.csdn.net/qq_36521848/article/details/106204350