Add driver behavior events

src/main/java/org/traccar/BasePipelineFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2021 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.
@@ -40,6 +40,7 @@
 import org.traccar.handler.StandardLoggingHandler;
 import org.traccar.handler.TimeHandler;
 import org.traccar.handler.events.AlertEventHandler;
+import org.traccar.handler.events.BehaviorEventHandler;
 import org.traccar.handler.events.CommandResultEventHandler;
 import org.traccar.handler.events.DriverEventHandler;
 import org.traccar.handler.events.FuelDropEventHandler;
@@ -132,6 +133,7 @@ protected void initChannel(Channel channel) {
                 DefaultDataHandler.class,
                 CommandResultEventHandler.class,
                 OverspeedEventHandler.class,
+                BehaviorEventHandler.class,
                 FuelDropEventHandler.class,
                 MotionEventHandler.class,
                 GeofenceEventHandler.class,

src/main/java/org/traccar/MainModule.java

@@ -65,6 +65,7 @@
 import org.traccar.handler.SpeedLimitHandler;
 import org.traccar.handler.TimeHandler;
 import org.traccar.handler.events.AlertEventHandler;
+import org.traccar.handler.events.BehaviorEventHandler;
 import org.traccar.handler.events.CommandResultEventHandler;
 import org.traccar.handler.events.DriverEventHandler;
 import org.traccar.handler.events.FuelDropEventHandler;
@@ -367,6 +368,12 @@ public static OverspeedEventHandler provideOverspeedEventHandler(
         return new OverspeedEventHandler(config, deviceManager, geofenceManager);
     }
 
+    @Singleton
+    @Provides
+    public static BehaviorEventHandler provideBehaviorEventHandler(Config config, IdentityManager identityManager) {
+        return new BehaviorEventHandler(config, identityManager);
+    }
+
     @Singleton
     @Provides
     public static FuelDropEventHandler provideFuelDropEventHandler(IdentityManager identityManager) {

src/main/java/org/traccar/config/Keys.java

@@ -212,12 +212,26 @@ private Keys() {
             Collections.singletonList(KeyType.GLOBAL));
 
     /**
-     * Relevant only for geofence speed limits. Use lowest speed limits from all geofences.
+     * Relevant only for geofence speed limits. Use the lowest speed limit from all geofences.
      */
     public static final ConfigKey<Boolean> EVENT_OVERSPEED_PREFER_LOWEST = new ConfigKey<>(
             "event.overspeed.preferLowest",
             Collections.singletonList(KeyType.GLOBAL));
 
+    /**
+     * Driver behavior acceleration threshold. Value is in meter per second squared.
+     */
+    public static final ConfigKey<Double> EVENT_BEHAVIOR_ACCELERATION_THRESHOLD = new ConfigKey<>(
+            "event.behavior.accelerationThreshold",
+            Collections.singletonList(KeyType.GLOBAL));
+
+    /**
+     * Driver behavior braking threshold. Value is in meter per second squared.
+     */
+    public static final ConfigKey<Double> EVENT_BEHAVIOR_BRAKING_THRESHOLD = new ConfigKey<>(
+            "event.behavior.brakingThreshold",
+            Collections.singletonList(KeyType.GLOBAL));
+
     /**
      * Do not generate alert event if same alert was present in last known location.
      */

src/main/java/org/traccar/handler/events/BehaviorEventHandler.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright 2020 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.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.handler.events;
+
+import io.netty.channel.ChannelHandler;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.database.IdentityManager;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+
+import java.util.Collections;
+import java.util.Map;
+
+@ChannelHandler.Sharable
+public class BehaviorEventHandler extends BaseEventHandler {
+
+    private final double accelerationThreshold;
+    private final double brakingThreshold;
+
+    private final IdentityManager identityManager;
+
+    public BehaviorEventHandler(Config config, IdentityManager identityManager) {
+        accelerationThreshold = config.getDouble(Keys.EVENT_BEHAVIOR_ACCELERATION_THRESHOLD);
+        brakingThreshold = config.getDouble(Keys.EVENT_BEHAVIOR_BRAKING_THRESHOLD);
+        this.identityManager = identityManager;
+    }
+
+    @Override
+    protected Map<Event, Position> analyzePosition(Position position) {
+
+        Position lastPosition = identityManager.getLastPosition(position.getDeviceId());
+        if (lastPosition != null) {
+            double acceleration = UnitsConverter.mpsFromKnots(position.getSpeed() - lastPosition.getSpeed()) * 1000
+                    / (position.getFixTime().getTime() - lastPosition.getFixTime().getTime());
+            if (accelerationThreshold != 0 && acceleration >= accelerationThreshold) {
+                Event event = new Event(Event.TYPE_ALARM, position);
+                event.set(Position.KEY_ALARM, Position.ALARM_ACCELERATION);
+                return Collections.singletonMap(event, position);
+            } else if (brakingThreshold != 0 && acceleration <= -brakingThreshold) {
+                Event event = new Event(Event.TYPE_ALARM, position);
+                event.set(Position.KEY_ALARM, Position.ALARM_BRAKING);
+                return Collections.singletonMap(event, position);
+            }
+        }
+        return null;
+    }
+
+}