Add thread count to admin page and update documentation to mention quartz

Author: boyter

src/main/java/com/searchcode/app/App.java

@@ -391,7 +391,7 @@ public static void main(String[] args) {
                     return true;
                 }, new JsonTransformer());
 
-                get("/getstat/", "application/json", (request, response) -> {
+                get("/getstat/", (request, response) -> {
                     checkLoggedIn(request, response);
                     AdminRouteService adminRouteService = new AdminRouteService();
                     return adminRouteService.getStat(request, response);

src/main/java/com/searchcode/app/service/route/AdminRouteService.java

@@ -131,6 +131,7 @@ public Map<String, Object> adminPage(Request request, Response response) {
         map.put("currentdatetime", this.getStat("servertime"));
         map.put("spellingCount", this.getStat("spellingCount"));
         map.put("runningJobs", this.getStat("runningJobs"));
+        map.put("threads", this.getStat("threads"));
 
 
         map.put("sysArch", statsService.getArch());
@@ -433,6 +434,8 @@ private String getStat(String statname) {
                 return StringUtils.join(Singleton.getLogger().getSevereLogs(), System.lineSeparator());
             case "searchlogs":
                 return StringUtils.join(Singleton.getLogger().getSearchLogs(), System.lineSeparator());
+            case "threads":
+                return "" + java.lang.Thread.activeCount();
         }
         return Values.EMPTYSTRING;
     }

src/main/resources/spark/template/freemarker/admin.ftl

@@ -38,6 +38,7 @@
                         <br>Uptime: <span ic-poll="60s" ic-src="/admin/api/getstat/?statname=uptime">${uptime}</span>
                         <br>Version: ${version} <a ic-get-from="/admin/checkversion/" ic-indicator="#demo-spinner">(check if latest version)</a>
                                             <i id="demo-spinner" class="fa fa-spinner fa-spin" style="display:none"><img src="/img/loading_small.gif" /></i>
+                        <br>Threads: <span ic-poll="60s" ic-src="/admin/api/getstat/?statname=threads">${threads}</span>
                     </div>
                 </div>
             </div>

src/main/resources/spark/template/freemarker/documentation.ftl

@@ -569,6 +569,8 @@ String myHmac = HmacUtils.hmacSha512Hex(MYPRIVATEKEY, PARAMSTOHMAC);</textarea>
 
         <h3 id="properties">Properties</h3>
 
+        <p>There are two properties files in the base directory of searchcode server, searchcode.properties and quartz.properties.</p>
+
         <p>
         The searchcode.properties file in the base directory is a simple text file that can be used to configure aspects of searchcode server. By default
         it is setup using suggested defaults. <b>It is important to note that the password to administer your server is located
@@ -654,6 +656,13 @@ String myHmac = HmacUtils.hmacSha512Hex(MYPRIVATEKEY, PARAMSTOHMAC);</textarea>
 
         </p>
 
+        <p>
+        The quartz.properties file in the base directory should only need to be modified when changing the searchcode.properties values of number_git_processors, number_svn_processors and number_file_processors.
+        By default searchcode spawns 10 background threads which are used for repository processing and internal processing logic. By itself searchcode uses 5 threads
+        by itself leaving over 5 for background repository processing tasks. If you adjust the number of repository processors higher then you should increase the value for
+        org.quartz.threadPool.threadCount to a higher number up-to a maximum of 100.
+        </p>
+
         <h3 id="settings">Settings</h3>
 
         <p>