From f84e2710e05660822633ec9e61cde44c03a42d7e Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton@traccar.org>
Date: Sat, 30 Mar 2024 18:46:37 -0700
Subject: Refactor position and event handlers

---
 .../org/traccar/handler/events/AlertEventHandler.java   | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

(limited to 'src/main/java/org/traccar/handler/events/AlertEventHandler.java')

diff --git a/src/main/java/org/traccar/handler/events/AlertEventHandler.java b/src/main/java/org/traccar/handler/events/AlertEventHandler.java
index 531a0f957..ca580b60d 100644
--- a/src/main/java/org/traccar/handler/events/AlertEventHandler.java
+++ b/src/main/java/org/traccar/handler/events/AlertEventHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 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.
@@ -15,21 +15,13 @@
  */
 package org.traccar.handler.events;
 
-import java.util.Collections;
-import java.util.Map;
-
-import io.netty.channel.ChannelHandler;
+import jakarta.inject.Inject;
 import org.traccar.config.Config;
 import org.traccar.config.Keys;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
 import org.traccar.session.cache.CacheManager;
 
-import jakarta.inject.Inject;
-import jakarta.inject.Singleton;
-
-@Singleton
-@ChannelHandler.Sharable
 public class AlertEventHandler extends BaseEventHandler {
 
     private final CacheManager cacheManager;
@@ -42,7 +34,7 @@ public class AlertEventHandler extends BaseEventHandler {
     }
 
     @Override
-    protected Map<Event, Position> analyzePosition(Position position) {
+    public void analyzePosition(Position position, Callback callback) {
         Object alarm = position.getAttributes().get(Position.KEY_ALARM);
         if (alarm != null) {
             boolean ignoreAlert = false;
@@ -55,10 +47,9 @@ public class AlertEventHandler extends BaseEventHandler {
             if (!ignoreAlert) {
                 Event event = new Event(Event.TYPE_ALARM, position);
                 event.set(Position.KEY_ALARM, (String) alarm);
-                return Collections.singletonMap(event, position);
+                callback.eventDetected(event);
             }
         }
-        return null;
     }
 
 }
-- 
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