jmeter资源监控器开发——增加监控数据

qaarchitech · 发表于 2008-7-31 22:14:50

by jack
jmeter自带的监控器输出的只有四条曲线，其中health和load曲线还是根据mem和thread算出来的，所以真正意义上输出的数据只有两个而已。显然这远远满足不了我们对性能监控的需要么。
既然jmeter没有，那我就有用武之地了（要不然要我这QA架构师干啥，哈），于是我自己添了几个，用着还不错，现在把添加一个参数的过程完整叙述如下：

以增加swapout为例，取xml中的currentThreadsBusy作为swapout的值。

蓝色字注明关键点：

Stats.java

增加新的数据解析方法

   public static int calculateSwapout(Status stat) {
            double swapout = 0;
            if (stat != null && stat.getConnector().size() > 0) {
                  Connector cntr = (Connector) stat.getConnector().get(0);
                  swapout = cntr.getRequestInfo().getCurrentThreadsBusy();
            }
            return (int) swapout;
   }

MonitorStats.java

增加私有静态变量

   private static final String SWAPOUT = "stats.swapout";

增加构造函数入参、赋值语句

   public MonitorStats(int health, int load, int cpuload, int memload, int threadload, int swapin, int swapout, String host, String port,
                  String protocol, long time) {
            this.setHealth(health);
            this.setLoad(load);
            this.setCpuLoad(cpuload);
            this.setMemLoad(memload);
            this.setThreadLoad(threadload);
            this.setSwapin(swapin);
            this.setSwapout(swapout);
            this.setHost(host);
            this.setPort(port);
            this.setProtocol(protocol);
            this.setTimeStamp(time);
   }

增加相应set、get方法

   public void setSwapout(int load) {
            this.setProperty(SWAPOUT, String.valueOf(load));
   }

   public int getSwapout() {
            return this.getPropertyAsInt(SWAPOUT);
   }

MonitorModel.java

增加私有变量对象current初始化中MonitorStats实例化的入参

   private MonitorStats current = new MonitorStats(0, 0, 0, 0, 0, 0, 0, "", "", "", System.currentTimeMillis());

增加clearData方法中MonitorStats实例化的入参

            current = new MonitorStats(0, 0, 0, 0, 0, 0, 0, "", "", "", System.currentTimeMillis());

增加相应get方法

   public int getSwapout() {
            return this.current.getSwapout();
   }

增加cloneMonitorStats方法的入参

   public MonitorStats cloneMonitorStats() {
            return new MonitorStats(current.getHealth(), current.getLoad(), current.getCpuLoad(), current.getMemLoad(),
                        current.getThreadLoad(), current.getSwapin(), current.getSwapout(), current.getHost(), current.getPort(), current.getProtocol(), current
                                       .getTimeStamp());
   }

MemoryBenchmark.java

增加main方法中MonitorStats实例化的入参

                        MonitorStats mstats = new MonitorStats(Stats.calculateHealth(st), Stats.calculateLoad(st), Stats.calculateCpuLoad(st), Stats
                                       .calculateMemLoad(st), Stats.calculateThreadLoad(st), Stats.calculateSwapin(st), Stats.calculateSwapout(st), "localhost", "8080", "http", System
                                       .currentTimeMillis());

MonitorAccumModel.java

增加addSample方法中MonitorStats实例化的入参

                           MonitorStats stat = new MonitorStats(Stats.calculateHealth(st), Stats.calculateLoad(st), Stats.calculateCpuLoad(st), Stats
                                          .calculateMemLoad(st), Stats.calculateThreadLoad(st), Stats.calculateSwapin(st), Stats.calculateSwapout(st), surl.getHost(), String.valueOf(surl
                                          .getPort()), surl.getProtocol(), System.currentTimeMillis());

增加createNewMonitorModel方法中MonitorStats实例化的入参

            MonitorStats stat = new MonitorStats(Stats.DEAD, 0, 0, 0, 0, 0, 0, url.getHost(), String.valueOf(url.getPort()), url
                        .getProtocol(), System.currentTimeMillis());

MonitorPerformancePanel.java

增加公共静态变量（显示文案和图例，同时增加资源文件中对应项，及相应图片）

   public static final String LEGEND_SWAPOUT = JMeterUtils.getResString("monitor_legend_swapout_per");

   public static final ImageIcon LEGEND_SWAPOUT_ICON = JMeterUtils.getImage("monitor-yellow-legend.gif");

资源文件messages.properties：
monitor_legend_swapout_per=Swap Out

图片文件monitor-yellow-legend.gif

增加createLegend方法中的JLabel实例化语句

            JLabel jswapout = new JLabel(LEGEND_SWAPOUT);
            jswapout.setFont(plaintext);
            jswapout.setPreferredSize(lsize);
            jswapout.setIcon(LEGEND_SWAPOUT_ICON);
            legend.add(jswapout);

MonitorGraph.java

增加私有变量

   private boolean SWAPOUT = true;

增加相应set方法

   public void setSwapout(boolean swapout) {
            this.SWAPOUT = swapout;
   }

增加drawSample方法中相应绘图语句

            if (SWAPOUT) {
                  int swoy = (int) (height - (height * (model.getSwapout() / 10000.0)));
                  int lastswoy = (int) (height - (height * (last.getSwapout() / 10000.0)));

                  g.setColor(Color.yellow);
                  g.drawLine(lastx, lastswoy, xaxis, swoy);
            }

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