dashboard command print current timestamp. #1595

core/src/main/java/com/taobao/arthas/core/command/model/RuntimeInfoVO.java

@@ -13,6 +13,7 @@ public class RuntimeInfoVO {
     private double systemLoadAverage;
     private int processors;
     private long uptime;
+    private long timestamp;
 
     public RuntimeInfoVO() {
     }
@@ -72,4 +73,12 @@ public class RuntimeInfoVO {
     public void setUptime(long uptime) {
         this.uptime = uptime;
     }
+
+    public long getTimestamp() {
+        return timestamp;
+    }
+
+    public void setTimestamp(long timestamp) {
+        this.timestamp = timestamp;
+    }
 }

core/src/main/java/com/taobao/arthas/core/command/monitor200/DashboardCommand.java

@@ -32,6 +32,7 @@ import java.lang.management.MemoryPoolMXBean;
 import java.lang.management.MemoryType;
 import java.lang.management.MemoryUsage;
 import java.util.ArrayList;
+import java.util.Date;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
@@ -206,6 +207,7 @@ public class DashboardCommand extends AnnotatedCommand {
         runtimeInfo.setSystemLoadAverage(ManagementFactory.getOperatingSystemMXBean().getSystemLoadAverage());
         runtimeInfo.setProcessors(Runtime.getRuntime().availableProcessors());
         runtimeInfo.setUptime(ManagementFactory.getRuntimeMXBean().getUptime() / 1000);
+        runtimeInfo.setTimestamp(new Date().getTime());
         dashboardModel.setRuntimeInfo(runtimeInfo);
     }
 

core/src/main/java/com/taobao/arthas/core/command/view/DashboardView.java

@@ -10,6 +10,7 @@ import com.taobao.text.ui.TableElement;
 import com.taobao.text.util.RenderUtil;
 
 import java.lang.management.MemoryUsage;
+import java.util.Date;
 import java.util.List;
 import java.util.Map;
 
@@ -155,7 +156,7 @@ public class DashboardView extends ResultView<DashboardModel> {
         table.row("java.home", runtimeInfo.getJavaHome());
         table.row("systemload.average", String.format("%.2f", runtimeInfo.getSystemLoadAverage()));
         table.row("processors", "" + runtimeInfo.getProcessors());
-        table.row("uptime", "" + runtimeInfo.getUptime() + "s");
+        table.row("timestamp/uptime", new Date(runtimeInfo.getTimestamp()).toString() + "/" + runtimeInfo.getUptime() + "s");
         return table;
     }