startup report added

src/main/java/vassistent/bootstrap/ApplicationInitializer.java

@@ -5,6 +5,7 @@ import vassistent.model.AppState;
 import vassistent.service.*;
 import vassistent.util.AppConfigValidator;
 import vassistent.util.ConfigLoader;
+import vassistent.util.Logger;
 
 import javax.swing.*;
 import java.util.Properties;
@@ -99,9 +100,13 @@ public class ApplicationInitializer {
 
         context.setProcessManagerService(new ProcessManagerService(config));
 
+        Logger.info("PROCESS", "Starting configured external processes");
+
         ProcessManagerService.StartupReport startupReport =
                 context.getProcessManagerService().startProcesses();
 
+        logProcessStartupReport(startupReport);
+
         if (startupReport.hasFailures()) {
             context.getProcessManagerService().shutdown();
             throw new IllegalStateException(startupReport.buildFailureMessage());
@@ -144,4 +149,51 @@ public class ApplicationInitializer {
 
         return trimmed;
     }
+
+    /**
+     * Logs startup status for all process components and the global startup result.
+     *
+     * @param startupReport startup status report from {@link ProcessManagerService}
+     */
+    private static void logProcessStartupReport(
+            ProcessManagerService.StartupReport startupReport
+    ) {
+        logProcessStartStatus(startupReport.getMqttSimulator());
+        logProcessStartStatus(startupReport.getUnreal());
+
+        if (startupReport.hasFailures()) {
+            Logger.error("PROCESS", startupReport.buildFailureMessage());
+            return;
+        }
+
+        Logger.info("PROCESS", "External process startup completed successfully");
+    }
+
+    /**
+     * Logs one startup component status from the process startup report.
+     *
+     * @param status startup status for one managed process component
+     */
+    private static void logProcessStartStatus(
+            ProcessManagerService.ProcessStartStatus status
+    ) {
+        String component = status.getComponentName();
+
+        if (!status.isEnabled()) {
+            Logger.info("PROCESS", component + " startup skipped (disabled)");
+            return;
+        }
+
+        if (status.isStarted()) {
+            Logger.info("PROCESS", component + " startup succeeded");
+            return;
+        }
+
+        String error = status.getErrorMessage();
+        if (error == null || error.isBlank()) {
+            Logger.error("PROCESS", component + " startup failed");
+        } else {
+            Logger.error("PROCESS", component + " startup failed: " + error);
+        }
+    }
 }

src/main/java/vassistent/controller/DashboardController.java

@@ -8,6 +8,8 @@ import vassistent.util.Logger;
 
 import javax.swing.*;
 import java.util.List;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
 
 /**
  * Updates the dashboard chart and level bar whenever application state changes.
@@ -16,6 +18,7 @@ public class DashboardController {
 
     private final StatisticsService statisticsService;
     private final DashboardView dashboardView;
+    private final ExecutorService dashboardUpdateExecutor;
 
     /**
      * Creates a dashboard controller and subscribes to app state changes.
@@ -31,6 +34,12 @@ public class DashboardController {
     ) {
         this.statisticsService = statisticsService;
         this.dashboardView = dashboardView;
+        this.dashboardUpdateExecutor =
+                Executors.newSingleThreadExecutor(runnable -> {
+                    Thread thread = new Thread(runnable, "dashboard-update");
+                    thread.setDaemon(true);
+                    return thread;
+                });
 
         appState.addListener(this::onStateChanged);
     }
@@ -41,7 +50,7 @@ public class DashboardController {
      * @param state latest application state
      */
     private void onStateChanged(AppState state) {
-
+        dashboardUpdateExecutor.execute(() -> {
             List<RatioPoint> points =
                     statisticsService.getLastNAverages(120);
 
@@ -57,5 +66,6 @@ public class DashboardController {
                     dashboardView.updateProblemLevel(ratio);
                 }
             });
+        });
     }
 }

src/main/java/vassistent/model/AppState.java

@@ -1,7 +1,11 @@
 package vassistent.model;
 
-import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
+import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicLong;
+import java.util.concurrent.atomic.AtomicReference;
 import java.util.function.Consumer;
 
 /**
@@ -9,12 +13,13 @@ import java.util.function.Consumer;
  */
 public class AppState {
 
-    private long dataVersion = 0;
+    private final AtomicLong dataVersion = new AtomicLong(0);
-    private boolean mqttConnected;
+    private final AtomicBoolean mqttConnected = new AtomicBoolean(false);
-    private ProblemLevel problemLevel = ProblemLevel.NONE;
+    private final AtomicReference<ProblemLevel> problemLevel =
+            new AtomicReference<>(ProblemLevel.NONE);
 
     private final List<Consumer<AppState>> listeners =
-            new ArrayList<>();
+            new CopyOnWriteArrayList<>();
 
     /**
      * Registers a state listener that is notified on relevant updates.
@@ -22,14 +27,19 @@ public class AppState {
      * @param listener callback receiving the current state instance
      */
     public void addListener(Consumer<AppState> listener) {
-        listeners.add(listener);
+        listeners.add(
+                Objects.requireNonNull(
+                        listener,
+                        "listener must not be null"
+                )
+        );
     }
 
     /**
      * Notifies all currently registered listeners.
      */
     private void notifyListeners() {
-        new ArrayList<>(listeners).forEach(l -> l.accept(this));
+        listeners.forEach(listener -> listener.accept(this));
     }
 
     /**
@@ -38,7 +48,7 @@ public class AppState {
      * @return current problem level
      */
     public ProblemLevel getProblemLevel() {
-        return problemLevel;
+        return problemLevel.get();
     }
 
     /**
@@ -47,8 +57,14 @@ public class AppState {
      * @param problemLevel new problem level
      */
     public void setProblemLevel(ProblemLevel problemLevel) {
-        this.problemLevel = problemLevel;
+        this.problemLevel.set(
-        dataVersion++;
+                Objects.requireNonNull(
+                        problemLevel,
+                        "problemLevel must not be null"
+                )
+        );
+
+        dataVersion.incrementAndGet();
         notifyListeners();
     }
 
@@ -58,7 +74,7 @@ public class AppState {
      * @return {@code true} if connected, otherwise {@code false}
      */
     public boolean isMqttConnected() {
-        return mqttConnected;
+        return mqttConnected.get();
     }
 
     /**
@@ -67,8 +83,11 @@ public class AppState {
      * @param mqttConnected new MQTT connection flag
      */
     public void setMqttConnected(boolean mqttConnected) {
-        if (this.mqttConnected != mqttConnected) {
+        boolean previous =
-            this.mqttConnected = mqttConnected;
+                this.mqttConnected.getAndSet(mqttConnected);
+
+        if (previous != mqttConnected) {
+            dataVersion.incrementAndGet();
             notifyListeners();
         }
     }