1 files changed, 7 insertions, 15 deletions

diff --git a/src/main/java/org/traccar/handler/events/FuelEventHandler.java b/src/main/java/org/traccar/handler/events/FuelEventHandler.java
index e5085ecc2..c5675f51d 100644
--- a/src/main/java/org/traccar/handler/events/FuelEventHandler.java
+++ b/src/main/java/org/traccar/handler/events/FuelEventHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 - 2023 Anton Tananaev (anton@traccar.org)
+ * Copyright 2017 - 2024 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,7 +15,7 @@
  */
 package org.traccar.handler.events;
 
-import io.netty.channel.ChannelHandler;
+import jakarta.inject.Inject;
 import org.traccar.config.Keys;
 import org.traccar.helper.model.AttributeUtil;
 import org.traccar.helper.model.PositionUtil;
@@ -24,12 +24,6 @@ import org.traccar.model.Event;
 import org.traccar.model.Position;
 import org.traccar.session.cache.CacheManager;
 
-import jakarta.inject.Inject;
-import jakarta.inject.Singleton;
-import java.util.Map;
-
-@Singleton
-@ChannelHandler.Sharable
 public class FuelEventHandler extends BaseEventHandler {
 
     private final CacheManager cacheManager;
@@ -40,14 +34,14 @@ public class FuelEventHandler extends BaseEventHandler {
     }
 
     @Override
-    protected Map<Event, Position> analyzePosition(Position position) {
+    public void analyzePosition(Position position, Callback callback) {
 
         Device device = cacheManager.getObject(Device.class, position.getDeviceId());
         if (device == null) {
-            return null;
+            return;
         }
         if (!PositionUtil.isLatest(cacheManager, position)) {
-            return null;
+            return;
         }
 
         if (position.hasAttribute(Position.KEY_FUEL_LEVEL)) {
@@ -61,19 +55,17 @@ public class FuelEventHandler extends BaseEventHandler {
                     double threshold = AttributeUtil.lookup(
                             cacheManager, Keys.EVENT_FUEL_INCREASE_THRESHOLD, position.getDeviceId());
                     if (threshold > 0 && change >= threshold) {
-                        return Map.of(new Event(Event.TYPE_DEVICE_FUEL_INCREASE, position), position);
+                        callback.eventDetected(new Event(Event.TYPE_DEVICE_FUEL_INCREASE, position));
                     }
                 } else if (change < 0) {
                     double threshold = AttributeUtil.lookup(
                             cacheManager, Keys.EVENT_FUEL_DROP_THRESHOLD, position.getDeviceId());
                     if (threshold > 0 && Math.abs(change) >= threshold) {
-                        return Map.of(new Event(Event.TYPE_DEVICE_FUEL_DROP, position), position);
+                        callback.eventDetected(new Event(Event.TYPE_DEVICE_FUEL_DROP, position));
                     }
                 }
             }
         }
-
-        return null;
     }
 
 }