1 files changed, 156 insertions, 0 deletions
diff --git a/src/org/traccar/handler/events/OverspeedEventHandler.java b/src/org/traccar/handler/events/OverspeedEventHandler.java
new file mode 100644
index 000000000..567758de5
--- /dev/null
+++ b/src/org/traccar/handler/events/OverspeedEventHandler.java
@@ -0,0 +1,156 @@
+/*
+ * Copyright 2016 - 2018 Anton Tananaev (anton@traccar.org)
+ * Copyright 2018 Andrey Kunitsyn (andrey@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 java.util.Collections;
+import java.util.Map;
+
+import io.netty.channel.ChannelHandler;
+import org.traccar.BaseEventHandler;
+import org.traccar.Context;
+import org.traccar.model.Device;
+import org.traccar.model.DeviceState;
+import org.traccar.model.Event;
+import org.traccar.model.Geofence;
+import org.traccar.model.Position;
+
+@ChannelHandler.Sharable
+public class OverspeedEventHandler extends BaseEventHandler {
+
+    public static final String ATTRIBUTE_SPEED_LIMIT = "speedLimit";
+
+    private boolean notRepeat;
+    private boolean preferLowest;
+    private long minimalDuration;
+
+    public OverspeedEventHandler(long minimalDuration, boolean notRepeat, boolean preferLowest) {
+        this.notRepeat = notRepeat;
+        this.minimalDuration = minimalDuration;
+        this.preferLowest = preferLowest;
+    }
+
+    private Map<Event, Position> newEvent(DeviceState deviceState, double speedLimit) {
+        Position position = deviceState.getOverspeedPosition();
+        Event event = new Event(Event.TYPE_DEVICE_OVERSPEED, position.getDeviceId(), position.getId());
+        event.set("speed", deviceState.getOverspeedPosition().getSpeed());
+        event.set(ATTRIBUTE_SPEED_LIMIT, speedLimit);
+        event.setGeofenceId(deviceState.getOverspeedGeofenceId());
+        deviceState.setOverspeedState(notRepeat);
+        deviceState.setOverspeedPosition(null);
+        deviceState.setOverspeedGeofenceId(0);
+        return Collections.singletonMap(event, position);
+    }
+
+    public Map<Event, Position> updateOverspeedState(DeviceState deviceState, double speedLimit) {
+        Map<Event, Position> result = null;
+        if (deviceState.getOverspeedState() != null && !deviceState.getOverspeedState()
+                && deviceState.getOverspeedPosition() != null && speedLimit != 0) {
+            long currentTime = System.currentTimeMillis();
+            Position overspeedPosition = deviceState.getOverspeedPosition();
+            long overspeedTime = overspeedPosition.getFixTime().getTime();
+            if (overspeedTime + minimalDuration <= currentTime) {
+                result = newEvent(deviceState, speedLimit);
+            }
+        }
+        return result;
+    }
+
+    public Map<Event, Position> updateOverspeedState(
+            DeviceState deviceState, Position position, double speedLimit, long geofenceId) {
+        Map<Event, Position> result = null;
+
+        Boolean oldOverspeed = deviceState.getOverspeedState();
+
+        long currentTime = position.getFixTime().getTime();
+        boolean newOverspeed = position.getSpeed() > speedLimit;
+        if (newOverspeed && !oldOverspeed) {
+            if (deviceState.getOverspeedPosition() == null) {
+                deviceState.setOverspeedPosition(position);
+                deviceState.setOverspeedGeofenceId(geofenceId);
+            }
+        } else if (oldOverspeed && !newOverspeed) {
+            deviceState.setOverspeedState(false);
+            deviceState.setOverspeedPosition(null);
+            deviceState.setOverspeedGeofenceId(0);
+        } else {
+            deviceState.setOverspeedPosition(null);
+            deviceState.setOverspeedGeofenceId(0);
+        }
+        Position overspeedPosition = deviceState.getOverspeedPosition();
+        if (overspeedPosition != null) {
+            long overspeedTime = overspeedPosition.getFixTime().getTime();
+            if (newOverspeed && overspeedTime + minimalDuration <= currentTime) {
+                result = newEvent(deviceState, speedLimit);
+            }
+        }
+        return result;
+    }
+
+    @Override
+    protected Map<Event, Position> analyzePosition(Position position) {
+
+        long deviceId = position.getDeviceId();
+        Device device = Context.getIdentityManager().getById(deviceId);
+        if (device == null) {
+            return null;
+        }
+        if (!Context.getIdentityManager().isLatestPosition(position) || !position.getValid()) {
+            return null;
+        }
+
+        double speedLimit = Context.getDeviceManager().lookupAttributeDouble(deviceId, ATTRIBUTE_SPEED_LIMIT, 0, false);
+
+        double geofenceSpeedLimit = 0;
+        long overspeedGeofenceId = 0;
+
+        if (Context.getGeofenceManager() != null && device.getGeofenceIds() != null) {
+            for (long geofenceId : device.getGeofenceIds()) {
+                Geofence geofence = Context.getGeofenceManager().getById(geofenceId);
+                if (geofence != null) {
+                    double currentSpeedLimit = geofence.getDouble(ATTRIBUTE_SPEED_LIMIT);
+                    if (currentSpeedLimit > 0 && geofenceSpeedLimit == 0
+                            || preferLowest && currentSpeedLimit < geofenceSpeedLimit
+                            || !preferLowest && currentSpeedLimit > geofenceSpeedLimit) {
+                        geofenceSpeedLimit = currentSpeedLimit;
+                        overspeedGeofenceId = geofenceId;
+                    }
+                }
+            }
+        }
+        if (geofenceSpeedLimit > 0) {
+            speedLimit = geofenceSpeedLimit;
+        }
+
+        if (speedLimit == 0) {
+            return null;
+        }
+
+        Map<Event, Position> result = null;
+        DeviceState deviceState = Context.getDeviceManager().getDeviceState(deviceId);
+
+        if (deviceState.getOverspeedState() == null) {
+            deviceState.setOverspeedState(position.getSpeed() > speedLimit);
+            deviceState.setOverspeedGeofenceId(position.getSpeed() > speedLimit ? overspeedGeofenceId : 0);
+        } else {
+            result = updateOverspeedState(deviceState, position, speedLimit, overspeedGeofenceId);
+        }
+
+        Context.getDeviceManager().setDeviceState(deviceId, deviceState);
+        return result;
+    }
+
+}