Added health viewer (aka status) to Root prototype

code/Global/Global.js

@@ -133,6 +133,7 @@ function scheduler() {
    flushLog();
    Stories.flushRequests();
    helma.Mail.flushQueue();
+   Root.updateHealth();
    // FIXME: root.manage.autoCleanUp();
    // FIXME: pingUpdatedSites();
    // FIXME: countUsers();

code/Root/$Root.skin

@@ -33,6 +33,67 @@ was not found on this server!</p>
 <p>An error occurred while processing your request:</p>
 <% param.error %>
 
+<% #health %>
+<p class="storyTitle"><% response.title %></p>
+<table width="100%" border="0" cellspacing="0" cellpadding="2">
+<colgroup>
+   <col width="60%" />
+   <col width="*" />
+</colgroup>
+<tr>
+   <td>Uptime</td>
+   <td><% param.uptime suffix=" d" %></td>
+</tr>
+<tr>
+   <td>Active threads</td>
+   <td><% param.activeThreads %></td>
+</tr>
+<tr>
+   <td>Free threads</td>
+   <td><% param.freeThreads %></td>
+</tr>
+<tr>
+   <td>Number of requests (last 5 min)</td>
+   <td><% param.requestsPerUnit %></td>
+</tr>
+<tr>
+   <td>Total requests</td>
+   <td><% param.requestCount %></td>
+</tr>
+<tr>
+   <td>Number of errors (last 5 min)</td>
+   <td><% param.errorsPerUnit %></td>
+</tr>
+<tr>
+   <td>Total errors</td>
+   <td><% param.errorCount %></td>
+</tr>
+<tr>
+   <td>Total XML-RPC requests</td>
+   <td><% param.xmlrpcCount %></td>
+</tr>
+<tr>
+   <td>Cached objects</td>
+   <td><% param.cacheusage %> of <% property cacheSize %></td>
+</tr>
+<tr>
+   <td>Number of sessions</td>
+   <td><% param.sessions %></td>
+</tr>
+<tr>
+   <td>Free memory</td>
+   <td><% param.freeMemory suffix=" MB" %></td>
+</tr>
+<tr>
+   <td>Used memory</td>
+   <td><% param.usedMemory suffix=" MB" %></td>
+</tr>
+<tr>
+   <td>Total memory</td>
+   <td><% param.totalMemory suffix=" MB" %></td>
+</tr>
+</table>
+
 
 
 

code/Root/Root.js

@@ -50,6 +50,17 @@ Root.restore = function(ref) {
    return ref; 
 }
 
+Root.updateHealth = function() {
+   var health = Root.health || {};
+   if (!health.modified || new Date - health.modified > 5 * Date.ONEMINUTE) {
+      health.modified = new Date;
+      health.totalRequests = app.requestCount;
+      health.totalErrors = app.errorCount;
+      Root.health = health;
+   }
+   return;
+}
+
 Root.prototype.processHref = function(href) {
    return app.properties.defaulthost + href;
 }
@@ -61,6 +72,7 @@ Root.prototype.getPermission = function(action) {
    switch (action) {
       case "backup.js":
       case "debug":
+      case "health":
       return true;
       case "create":
       return this.getCreationPermission();
@@ -237,6 +249,32 @@ Root.prototype.updates_xml_action = function() {
    return;
 }
 
+Root.prototype.health_action = function() {
+   var param = {};
+   var properties = ["activeThreads", "freeThreads", "requestCount", 
+         "errorCount", "xmlrpcCount", "cacheusage"];
+   for each (var key in properties) {
+      param[key] = app[key];
+   }
+
+   var jvm = java.lang.Runtime.getRuntime();
+   var totalMemory = jvm.totalMemory() / 1024 / 1024;
+   var freeMemory = jvm.freeMemory()  / 1024 / 1024;
+   param.freeMemory = freeMemory.format();
+   param.totalMemory = totalMemory.format();
+   param.usedMemory = (totalMemory - freeMemory).format("0.##");
+
+   param.uptime = ((new Date - app.upSince.getTime()) / 
+         Date.ONEDAY).format("0.##");
+   param.sessions = app.countSessions();
+   param.requestsPerUnit = param.requestCount - Root.health.totalRequests;
+   param.errorsPerUnit = param.errorCount - Root.health.totalErrors;
+
+   res.data.title = "Health of " + root.getTitle();
+   res.data.body = this.renderSkinAsString("$Root#health", param);
+   this.renderSkin("Site#page");
+}
+
 Root.prototype.getMacroHandler = function(name) {
    switch (name) {
       case "sites":