Refactored main and added timed thread in TriggerManager. issue 6

src/se/hal/HalServer.java

@@ -20,12 +20,16 @@ import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
 
 /**
- * Created by Ziver on 2015-12-03.
+ * Main class for Hal
  */
 public class HalServer {
-	
-    private static List<HalDaemon> daemons;
-    private static List<HalHttpPage> pages;
+
+    private static ScheduledExecutorService daemonExecutor;
+    private static List<HalDaemon> daemons = new ArrayList<>();
+
+    private static HttpServer http;
+    private static List<HalHttpPage> pages = new ArrayList<>();
+
 
 
     public static void main(String[] args) throws Exception {
@@ -53,32 +57,34 @@ public class HalServer {
 
 
         // init daemons
-        daemons = new ArrayList<>();
-        for (Iterator<HalDaemon> it=pluginManager.getObjectIterator(HalDaemon.class); it.hasNext(); )
-            daemons.add(it.next());
         // We set only one thread for easier troubleshooting
-        ScheduledExecutorService executor = Executors.newScheduledThreadPool(1);
-        for(HalDaemon daemon : daemons){
-            daemon.initiate(executor);
-        }
+        daemonExecutor = Executors.newScheduledThreadPool(1);
+        for (Iterator<HalDaemon> it=pluginManager.getObjectIterator(HalDaemon.class); it.hasNext(); )
+            registerDaemon(it.next());
 
 
         // init http server
         HalHttpPage.getRootNav().createSubNav("Sensors");
         HalHttpPage.getRootNav().createSubNav("Events").setWeight(100);
-        pages = new ArrayList<>();
-        for (Iterator<HalHttpPage> it = pluginManager.getObjectIterator(HalJsonPage.class); it.hasNext(); )
-            pages.add(it.next());
-        for (Iterator<HalHttpPage> it=pluginManager.getObjectIterator(HalHttpPage.class); it.hasNext(); )
-            pages.add(it.next());
 
-        HttpServer http = new HttpServer(HalContext.getIntegerProperty("http_port"));
+        http = new HttpServer(HalContext.getIntegerProperty("http_port"));
         http.setDefaultPage(new HttpFilePage(FileUtil.find("resource/web/")));
         http.setPage("/", new HttpRedirectPage("/map"));
         http.setPage(HalAlertManager.getInstance().getUrl(), HalAlertManager.getInstance());
-        for(HalHttpPage page : pages){
-            http.setPage(page.getId(), page);
-        }
+        for (Iterator<HalHttpPage> it = pluginManager.getObjectIterator(HalJsonPage.class); it.hasNext(); )
+            registerPage(it.next());
+        for (Iterator<HalHttpPage> it=pluginManager.getObjectIterator(HalHttpPage.class); it.hasNext(); )
+            registerPage(it.next());
         http.start();
     }
+
+
+    public static void registerDaemon(HalDaemon daemon){
+        daemons.add(daemon);
+        daemon.initiate(daemonExecutor);
+    }
+    public static void registerPage(HalHttpPage page){
+        pages.add(page);
+        http.setPage(page.getId(), page);
+    }
 }

src/se/hal/TriggerManager.java

@@ -9,6 +9,9 @@ import zutil.plugin.PluginManager;
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
 import java.util.logging.Logger;
 
 
@@ -17,14 +20,28 @@ import java.util.logging.Logger;
  */
 public class TriggerManager {
     private static final Logger logger = LogUtil.getLogger();
+    private static final long EVALUATION_INTERVAL = 5 * 1000;
     private static TriggerManager instance;
 
     private ArrayList<Class<? extends HalTrigger>> availableTriggers = new ArrayList<>();
     private ArrayList<Class<? extends HalAction>>  availableActions  = new ArrayList<>();
 
     private ArrayList<TriggerFlow> triggerFlows = new ArrayList<>();
+    private ScheduledExecutorService executor;
 
 
+    public void setEvaluationInterval(long interval) {
+        if (executor != null)
+            executor.shutdownNow();
+        executor = Executors.newScheduledThreadPool(1);
+        executor.scheduleAtFixedRate(new Runnable() {
+            @Override
+            public void run() {
+                evaluateAndExecute();
+            }
+        }, 0, interval, TimeUnit.MILLISECONDS);
+    }
+
 
     public void addAvailableTrigger(Class<? extends HalTrigger> clazz) {
         if ( ! availableTriggers.contains(clazz))
@@ -48,7 +65,6 @@ public class TriggerManager {
     }
 
 
-
     /**
      * Main execution method.
      * This method will go through all flows and evaluate them. If the
@@ -66,25 +82,24 @@ public class TriggerManager {
     }
 
 
-
-    public static void initialize(PluginManager pluginManager){
+    public static void initialize(PluginManager pluginManager) {
         TriggerManager manager = new TriggerManager();
 
         for (Iterator<Class<? extends HalTrigger>> it = pluginManager.getClassIterator(HalTrigger.class);
-             it.hasNext(); ){
+             it.hasNext(); ) {
             manager.addAvailableTrigger(it.next());
         }
 
         for (Iterator<Class<? extends HalAction>> it = pluginManager.getClassIterator(HalAction.class);
-             it.hasNext(); ){
+             it.hasNext(); ) {
             manager.addAvailableAction(it.next());
         }
 
+        manager.setEvaluationInterval(EVALUATION_INTERVAL);
         instance = manager;
     }
 
     public static TriggerManager getInstance(){
         return instance;
     }
-
 }