- Overlapping geofences

- Simplified user-device link

14 files changed, 198 insertions, 130 deletions

diff --git a/src/org/traccar/BaseEventHandler.java b/src/org/traccar/BaseEventHandler.java
index 3e3317f0a..16d911dac 100644
--- a/src/org/traccar/BaseEventHandler.java
+++ b/src/org/traccar/BaseEventHandler.java
@@ -1,5 +1,7 @@
 package org.traccar;
 
+import java.util.Collection;
+
 import org.traccar.model.Device;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
@@ -23,13 +25,15 @@ public abstract class BaseEventHandler extends BaseDataHandler {
             }
         }
 
-        Event event = analizePosition(position);
-        if (event != null) {
-            Context.getConnectionManager().updateEvent(event, position);
+        Collection<Event> events = analizePosition(position);
+        if (events != null) {
+            for (Event event : events) {
+                Context.getNotificationManager().updateEvent(event, position);
+            }
         }
         return position;
     }
 
-    protected abstract Event analizePosition(Position position);
+    protected abstract Collection<Event> analizePosition(Position position);
 
 }
diff --git a/src/org/traccar/Context.java b/src/org/traccar/Context.java
index b78d11e7b..6f99ff97d 100644
--- a/src/org/traccar/Context.java
+++ b/src/org/traccar/Context.java
@@ -19,6 +19,7 @@ import com.ning.http.client.AsyncHttpClient;
 import org.traccar.database.ConnectionManager;
 import org.traccar.database.DataManager;
 import org.traccar.database.IdentityManager;
+import org.traccar.database.NotificationManager;
 import org.traccar.database.PermissionsManager;
 import org.traccar.database.GeofenceManager;
 import org.traccar.geocode.BingMapsReverseGeocoder;
@@ -106,6 +107,12 @@ public final class Context {
         return geofenceManager;
     }
 
+    private static NotificationManager notificationManager;
+
+    public static NotificationManager getNotificationManager() {
+        return notificationManager;
+    }
+
     private static final AsyncHttpClient ASYNC_HTTP_CLIENT = new AsyncHttpClient();
 
     public static AsyncHttpClient getAsyncHttpClient() {
@@ -184,9 +191,11 @@ public final class Context {
 
         permissionsManager = new PermissionsManager(dataManager);
 
+        connectionManager = new ConnectionManager(dataManager);
+
         geofenceManager = new GeofenceManager(dataManager);
 
-        connectionManager = new ConnectionManager(dataManager);
+        notificationManager = new NotificationManager(dataManager);
 
         serverManager = new ServerManager();
 
diff --git a/src/org/traccar/api/resource/DeviceGeofenceResource.java b/src/org/traccar/api/resource/DeviceGeofenceResource.java
index dc7014d79..99d64292b 100644
--- a/src/org/traccar/api/resource/DeviceGeofenceResource.java
+++ b/src/org/traccar/api/resource/DeviceGeofenceResource.java
@@ -17,7 +17,7 @@ package org.traccar.api.resource;
 
 import org.traccar.Context;
 import org.traccar.api.BaseResource;
-import org.traccar.model.UserDeviceGeofence;
+import org.traccar.model.DeviceGeofence;
 
 import javax.ws.rs.Consumes;
 import javax.ws.rs.DELETE;
@@ -35,25 +35,21 @@ import java.sql.SQLException;
 public class DeviceGeofenceResource extends BaseResource {
 
     @POST
-    public Response add(UserDeviceGeofence entity) throws SQLException {
+    public Response add(DeviceGeofence entity) throws SQLException {
         Context.getPermissionsManager().checkReadonly(getUserId());
-        Context.getPermissionsManager().checkUser(getUserId(), entity.getUserId());
         Context.getPermissionsManager().checkDevice(getUserId(), entity.getDeviceId());
         Context.getPermissionsManager().checkGeofence(getUserId(), entity.getGeofenceId());
-        Context.getDataManager().linkUserDeviceGeofence(entity.getUserId(),
-            entity.getDeviceId(), entity.getGeofenceId());
+        Context.getDataManager().linkDeviceGeofence(entity.getDeviceId(), entity.getGeofenceId());
         Context.getGeofenceManager().refresh();
         return Response.ok(entity).build();
     }
 
     @DELETE
-    public Response remove(UserDeviceGeofence entity) throws SQLException {
+    public Response remove(DeviceGeofence entity) throws SQLException {
         Context.getPermissionsManager().checkReadonly(getUserId());
-        Context.getPermissionsManager().checkUser(getUserId(), entity.getUserId());
         Context.getPermissionsManager().checkDevice(getUserId(), entity.getDeviceId());
         Context.getPermissionsManager().checkGeofence(getUserId(), entity.getGeofenceId());
-        Context.getDataManager().unlinkUserDeviceGeofence(entity.getUserId(), entity.getDeviceId(),
-            entity.getGeofenceId());
+        Context.getDataManager().unlinkDeviceGeofence(entity.getDeviceId(), entity.getGeofenceId());
         Context.getGeofenceManager().refresh();
         return Response.noContent().build();
     }
diff --git a/src/org/traccar/database/ConnectionManager.java b/src/org/traccar/database/ConnectionManager.java
index 6e47dfad3..4f12c44d4 100644
--- a/src/org/traccar/database/ConnectionManager.java
+++ b/src/org/traccar/database/ConnectionManager.java
@@ -94,7 +94,7 @@ public class ConnectionManager {
                 if (status.equals(Device.STATUS_ONLINE)) {
                     event.setType(Event.TYPE_DEVICE_ONLINE);
                 }
-                updateEvent(event, null);
+                Context.getNotificationManager().updateEvent(event, null);
             }
             device.setStatus(status);
 
@@ -147,19 +147,10 @@ public class ConnectionManager {
         }
     }
 
-    public synchronized void updateEvent(Event event, Position position) {
-        long deviceId = event.getDeviceId();
-        try {
-            Context.getDataManager().addEvent(event);
-        } catch (SQLException error) {
-            Log.warning(error);
-        }
-        for (long userId : Context.getPermissionsManager().getDeviceUsers(deviceId)) {
-            if (listeners.containsKey(userId) && (event.getGeofenceId() == 0
-                    || Context.getGeofenceManager().checkGeofence(userId, event.getGeofenceId()))) {
-                for (UpdateListener listener : listeners.get(userId)) {
-                    listener.onUpdateEvent(event, position);
-                }
+    public synchronized void updateEvent(long userId, Event event, Position position) {
+        if (listeners.containsKey(userId)) {
+            for (UpdateListener listener : listeners.get(userId)) {
+                listener.onUpdateEvent(event, position);
             }
         }
     }
diff --git a/src/org/traccar/database/DataManager.java b/src/org/traccar/database/DataManager.java
index 30334b78b..2b09e2fb0 100644
--- a/src/org/traccar/database/DataManager.java
+++ b/src/org/traccar/database/DataManager.java
@@ -55,7 +55,7 @@ import org.traccar.model.GroupPermission;
 import org.traccar.model.Position;
 import org.traccar.model.Server;
 import org.traccar.model.User;
-import org.traccar.model.UserDeviceGeofence;
+import org.traccar.model.DeviceGeofence;
 import org.traccar.model.GeofencePermission;
 
 import com.zaxxer.hikari.HikariConfig;
@@ -372,7 +372,6 @@ public class DataManager implements IdentityManager {
         Device cachedDevice = getDeviceById(device.getId());
         cachedDevice.setStatus(device.getStatus());
         cachedDevice.setMotion(device.getMotion());
-        cachedDevice.setGeofenceId(device.getGeofenceId());
     }
 
     public void removeDevice(long deviceId) throws SQLException {
@@ -596,22 +595,20 @@ public class DataManager implements IdentityManager {
                 .executeUpdate();
     }
 
-    public Collection<UserDeviceGeofence> getUserDeviceGeofences() throws SQLException {
-        return QueryBuilder.create(dataSource, getQuery("database.selectUserDeviceGeofences"))
-                .executeQuery(UserDeviceGeofence.class);
+    public Collection<DeviceGeofence> getDeviceGeofences() throws SQLException {
+        return QueryBuilder.create(dataSource, getQuery("database.selectDeviceGeofences"))
+                .executeQuery(DeviceGeofence.class);
     }
 
-    public void linkUserDeviceGeofence(long userId, long deviceId, long geofenceId) throws SQLException {
-        QueryBuilder.create(dataSource, getQuery("database.linkUserDeviceGeofence"))
-                .setLong("userId", userId)
+    public void linkDeviceGeofence(long deviceId, long geofenceId) throws SQLException {
+        QueryBuilder.create(dataSource, getQuery("database.linkDeviceGeofence"))
                 .setLong("deviceId", deviceId)
                 .setLong("geofenceId", geofenceId)
                 .executeUpdate();
     }
 
-    public void unlinkUserDeviceGeofence(long userId, long deviceId, long geofenceId) throws SQLException {
-        QueryBuilder.create(dataSource, getQuery("database.unlinkUserDeviceGeofence"))
-                .setLong("userId", userId)
+    public void unlinkDeviceGeofence(long deviceId, long geofenceId) throws SQLException {
+        QueryBuilder.create(dataSource, getQuery("database.unlinkDeviceGeofence"))
                 .setLong("deviceId", deviceId)
                 .setLong("geofenceId", geofenceId)
                 .executeUpdate();
diff --git a/src/org/traccar/database/GeofenceManager.java b/src/org/traccar/database/GeofenceManager.java
index 64afc876c..b551bc467 100644
--- a/src/org/traccar/database/GeofenceManager.java
+++ b/src/org/traccar/database/GeofenceManager.java
@@ -1,20 +1,24 @@
 package org.traccar.database;
 
 import java.sql.SQLException;
+import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.LinkedList;
+import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.locks.ReadWriteLock;
 import java.util.concurrent.locks.ReentrantReadWriteLock;
 
+import org.traccar.Context;
 import org.traccar.helper.Log;
 import org.traccar.model.Device;
 import org.traccar.model.Geofence;
 import org.traccar.model.GroupGeofence;
-import org.traccar.model.UserDeviceGeofence;
+import org.traccar.model.Position;
+import org.traccar.model.DeviceGeofence;
 import org.traccar.model.GeofencePermission;
 
 public class GeofenceManager {
@@ -25,8 +29,8 @@ public class GeofenceManager {
     private final Map<Long, Set<Long>> userGeofences = new HashMap<>();
     private final Map<Long, Set<Long>> groupGeofences = new HashMap<>();
 
+    private final Map<Long, Set<Long>> deviceGeofencesWithGroups = new HashMap<>();
     private final Map<Long, Set<Long>> deviceGeofences = new HashMap<>();
-    private final Map<Long, Map<Long, Set<Long>>> userDeviceGeofences = new HashMap<>();
 
     private final ReadWriteLock deviceGeofencesLock = new ReentrantReadWriteLock();
     private final ReadWriteLock geofencesLock = new ReentrantReadWriteLock();
@@ -54,17 +58,17 @@ public class GeofenceManager {
     public Set<Long> getAllDeviceGeofences(long deviceId) {
         deviceGeofencesLock.readLock().lock();
         try {
-            return getDeviceGeofences(deviceGeofences, deviceId);
+            return getDeviceGeofences(deviceGeofencesWithGroups, deviceId);
         } finally {
             deviceGeofencesLock.readLock().unlock();
         }
 
     }
 
-    public Set<Long> getUserDeviceGeofences(long userId, long deviceId) {
+    public Set<Long> getDeviceGeofences(long deviceId) {
         deviceGeofencesLock.readLock().lock();
         try {
-            return getUserDeviceGeofencesUnlocked(userId, deviceId);
+            return getDeviceGeofences(deviceGeofences, deviceId);
         } finally {
             deviceGeofencesLock.readLock().unlock();
         }
@@ -77,13 +81,6 @@ public class GeofenceManager {
         return deviceGeofences.get(deviceId);
     }
 
-    private Set<Long> getUserDeviceGeofencesUnlocked(long userId, long deviceId) {
-        if (!userDeviceGeofences.containsKey(userId)) {
-            userDeviceGeofences.put(userId, new HashMap<Long, Set<Long>>());
-        }
-        return getDeviceGeofences(userDeviceGeofences.get(userId), deviceId);
-    }
-
     public final void refresh() {
         if (dataManager != null) {
             try {
@@ -107,24 +104,38 @@ public class GeofenceManager {
                     }
 
                     deviceGeofences.clear();
+                    deviceGeofencesWithGroups.clear();
 
-                    for (Map.Entry<Long, Map<Long, Set<Long>>> deviceGeofence : userDeviceGeofences.entrySet()) {
-                        deviceGeofence.getValue().clear();
+                    for (DeviceGeofence deviceGeofence : dataManager.getDeviceGeofences()) {
+                        getDeviceGeofences(deviceGeofences, deviceGeofence.getDeviceId())
+                            .add(deviceGeofence.getGeofenceId());
+                        getDeviceGeofences(deviceGeofencesWithGroups, deviceGeofence.getDeviceId())
+                            .add(deviceGeofence.getGeofenceId());
                     }
-                    userDeviceGeofences.clear();
 
-                    for (UserDeviceGeofence userDeviceGeofence : dataManager.getUserDeviceGeofences()) {
-                        getDeviceGeofences(deviceGeofences, userDeviceGeofence.getDeviceId())
-                            .add(userDeviceGeofence.getGeofenceId());
-                        getUserDeviceGeofencesUnlocked(userDeviceGeofence.getUserId(), userDeviceGeofence.getDeviceId())
-                            .add(userDeviceGeofence.getGeofenceId());
-                    }
                     for (Device device : dataManager.getAllDevices()) {
                         long groupId = device.getGroupId();
                         while (groupId != 0) {
-                            getDeviceGeofences(deviceGeofences, device.getId()).addAll(getGroupGeofences(groupId));
+                            getDeviceGeofences(deviceGeofencesWithGroups,
+                                    device.getId()).addAll(getGroupGeofences(groupId));
                             groupId = dataManager.getGroupById(groupId).getGroupId();
                         }
+                        List<Long> deviceGeofenceIds = device.getGeofenceIds();
+                        if (deviceGeofenceIds == null) {
+                            deviceGeofenceIds = new ArrayList<Long>();
+                        } else {
+                            deviceGeofenceIds.clear();
+                        }
+                        Position lastPosition = Context.getConnectionManager().getLastPosition(device.getId());
+                        if (lastPosition != null) {
+                            for (Long geofenceId : deviceGeofencesWithGroups.get(device.getId())) {
+                                if (getGeofence(geofenceId).getGeometry()
+                                        .containsPoint(lastPosition.getLatitude(), lastPosition.getLongitude())) {
+                                    deviceGeofenceIds.add(geofenceId);
+                                }
+                            }
+                        }
+                        device.setGeofenceIds(deviceGeofenceIds);
                     }
 
                 } finally {
@@ -188,4 +199,14 @@ public class GeofenceManager {
         return getUserGeofencesIds(userId).contains(geofenceId);
     }
 
+    public List<Long> getCurrentDeviceGeofences(Position position) {
+        List<Long> result = new ArrayList<Long>();
+        for (Long geofenceId : getAllDeviceGeofences(position.getDeviceId())) {
+            if (getGeofence(geofenceId).getGeometry().containsPoint(position.getLatitude(), position.getLongitude())) {
+                result.add(geofenceId);
+            }
+        }
+        return result;
+    }
+
 }
diff --git a/src/org/traccar/database/NotificationManager.java b/src/org/traccar/database/NotificationManager.java
new file mode 100644
index 000000000..8c8e958c8
--- /dev/null
+++ b/src/org/traccar/database/NotificationManager.java
@@ -0,0 +1,42 @@
+package org.traccar.database;
+
+import java.sql.SQLException;
+import java.util.Collection;
+import java.util.Set;
+
+import org.traccar.Context;
+import org.traccar.helper.Log;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+
+public class NotificationManager {
+
+    private final DataManager dataManager;
+
+    public NotificationManager(DataManager dataManager) {
+        this.dataManager = dataManager;
+    }
+
+    public void updateEvent(Event event, Position position) {
+        try {
+            dataManager.addEvent(event);
+        } catch (SQLException error) {
+            Log.warning(error);
+        }
+
+        Set<Long> users = Context.getPermissionsManager().getDeviceUsers(event.getDeviceId());
+        for (Long userId : users) {
+            if (event.getGeofenceId() == 0
+                    || Context.getGeofenceManager().checkGeofence(userId, event.getGeofenceId())) {
+                Context.getConnectionManager().updateEvent(userId, event, position);
+            }
+        }
+    }
+
+    public void updateEvents(Collection<Event> events, Position position) {
+
+        for (Event event : events) {
+            updateEvent(event, position);
+        }
+    }
+}
diff --git a/src/org/traccar/events/CommandResultEventHandler.java b/src/org/traccar/events/CommandResultEventHandler.java
index 23c62566a..9dbdb4b4c 100644
--- a/src/org/traccar/events/CommandResultEventHandler.java
+++ b/src/org/traccar/events/CommandResultEventHandler.java
@@ -1,5 +1,8 @@
 package org.traccar.events;
 
+import java.util.ArrayList;
+import java.util.Collection;
+
 import org.traccar.BaseEventHandler;
 import org.traccar.model.Event;
 import org.traccar.model.Position;
@@ -7,10 +10,12 @@ import org.traccar.model.Position;
 public class CommandResultEventHandler extends BaseEventHandler {
 
     @Override
-    protected Event analizePosition(Position position) {
+    protected Collection<Event> analizePosition(Position position) {
         Object commandResult = position.getAttributes().get(Position.KEY_RESULT);
         if (commandResult != null) {
-            return new Event(Event.TYPE_COMMAND_RESULT, position.getDeviceId(), position.getId());
+            Collection<Event> events = new ArrayList<>();
+            events.add(new Event(Event.TYPE_COMMAND_RESULT, position.getDeviceId(), position.getId()));
+            return events;
         }
         return null;
     }
diff --git a/src/org/traccar/events/GeofenceEventHandler.java b/src/org/traccar/events/GeofenceEventHandler.java
index bf9060ca1..ed63b6f7d 100644
--- a/src/org/traccar/events/GeofenceEventHandler.java
+++ b/src/org/traccar/events/GeofenceEventHandler.java
@@ -1,7 +1,9 @@
 package org.traccar.events;
 
 import java.sql.SQLException;
-import java.util.Set;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
 
 import org.traccar.BaseEventHandler;
 import org.traccar.Context;
@@ -25,50 +27,52 @@ public class GeofenceEventHandler extends BaseEventHandler {
     }
 
     @Override
-    protected Event analizePosition(Position position) {
-        Event event = null;
-        if (!isLastPosition() || !position.getValid()) {
-            return event;
+    protected Collection<Event> analizePosition(Position position) {
+         if (!isLastPosition() || !position.getValid()) {
+            return null;
         }
 
         Device device = dataManager.getDeviceById(position.getDeviceId());
         if (device == null) {
-            return event;
+            return null;
         }
 
-        Set<Long> geofences = geofenceManager.getAllDeviceGeofences(position.getDeviceId());
-        if (geofences == null) {
-            return event;
-        }
-        long geofenceId = 0;
-        for (Long geofence : geofences) {
-            if (geofenceManager.getGeofence(geofence).getGeometry()
-                    .containsPoint(position.getLatitude(), position.getLongitude())) {
-                geofenceId = geofence;
-                break;
-            }
+        List<Long> currentGeofences = geofenceManager.getCurrentDeviceGeofences(position);
+        List<Long> oldGeofences = new ArrayList<Long>();
+        if (device.getGeofenceIds() != null) {
+            oldGeofences.addAll(device.getGeofenceIds());
         }
+        List<Long> newGeofences = new ArrayList<Long>(currentGeofences);
+        newGeofences.removeAll(oldGeofences);
+        oldGeofences.removeAll(currentGeofences);
 
-        if (device.getGeofenceId() != geofenceId) {
-            try {
-                if (geofenceId == 0) {
-                    event = new Event(Event.TYPE_GEOFENCE_EXIT, position.getDeviceId(), position.getId());
-                    event.setGeofenceId(device.getGeofenceId());
-                } else {
-                    event = new Event(Event.TYPE_GEOFENCE_ENTER, position.getDeviceId(), position.getId());
+        device.setGeofenceIds(currentGeofences);
+
+        Collection<Event> events = new ArrayList<>();
+        try {
+            if (dataManager.getLastEvents(position.getDeviceId(),
+                    Event.TYPE_GEOFENCE_ENTER, suppressRepeated).isEmpty()) {
+                for (Long geofenceId : newGeofences) {
+                    Event event = new Event(Event.TYPE_GEOFENCE_ENTER, position.getDeviceId(), position.getId());
                     event.setGeofenceId(geofenceId);
+                    events.add(event);
                 }
-                if (event != null && !dataManager.getLastEvents(
-                    position.getDeviceId(), event.getType(), suppressRepeated).isEmpty()) {
-                    event = null;
+            }
+        } catch (SQLException error) {
+            Log.warning(error);
+        }
+        try {
+            if (dataManager.getLastEvents(position.getDeviceId(),
+                    Event.TYPE_GEOFENCE_EXIT, suppressRepeated).isEmpty()) {
+                for (Long geofenceId : oldGeofences) {
+                    Event event = new Event(Event.TYPE_GEOFENCE_EXIT, position.getDeviceId(), position.getId());
+                    event.setGeofenceId(geofenceId);
+                    events.add(event);
                 }
-                device.setGeofenceId(geofenceId);
-                dataManager.updateDeviceStatus(device);
-            } catch (SQLException error) {
-                Log.warning(error);
             }
-
+        } catch (SQLException error) {
+            Log.warning(error);
         }
-        return event;
+        return events;
     }
 }
diff --git a/src/org/traccar/events/MotionEventHandler.java b/src/org/traccar/events/MotionEventHandler.java
index 306fa8a4e..54b6b922d 100644
--- a/src/org/traccar/events/MotionEventHandler.java
+++ b/src/org/traccar/events/MotionEventHandler.java
@@ -1,6 +1,8 @@
 package org.traccar.events;
 
 import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Collection;
 
 import org.traccar.BaseEventHandler;
 import org.traccar.Context;
@@ -19,18 +21,17 @@ public class MotionEventHandler extends BaseEventHandler {
     }
 
     @Override
-    protected Event analizePosition(Position position) {
-        Event event = null;
-
+    protected Collection<Event> analizePosition(Position position) {
+        Collection<Event> result = null;
         if (!isLastPosition()) {
-            return event;
+            return null;
         }
 
         double speed = position.getSpeed();
         boolean valid = position.getValid();
         Device device = Context.getIdentityManager().getDeviceById(position.getDeviceId());
         if (device == null) {
-            return event;
+            return null;
         }
         String motion = device.getMotion();
         if (motion == null) {
@@ -38,21 +39,26 @@ public class MotionEventHandler extends BaseEventHandler {
         }
         if (valid && speed > SPEED_THRESHOLD && !motion.equals(Device.STATUS_MOVING)) {
             Context.getConnectionManager().updateDevice(position.getDeviceId(), Device.STATUS_MOVING, null);
-            event = new Event(Event.TYPE_DEVICE_MOVING, position.getDeviceId(), position.getId());
+            result = new ArrayList<>();
+            result.add(new Event(Event.TYPE_DEVICE_MOVING, position.getDeviceId(), position.getId()));
         } else if (valid && speed < SPEED_THRESHOLD && motion.equals(Device.STATUS_MOVING)) {
             Context.getConnectionManager().updateDevice(position.getDeviceId(), Device.STATUS_STOPPED, null);
-            event = new Event(Event.TYPE_DEVICE_STOPPED, position.getDeviceId(), position.getId());
+            result = new ArrayList<>();
+            result.add(new Event(Event.TYPE_DEVICE_STOPPED, position.getDeviceId(), position.getId()));
         }
         try {
-            if (event != null && !Context.getDataManager().getLastEvents(
-                    position.getDeviceId(), event.getType(), suppressRepeated).isEmpty()) {
-                event = null;
+            if (result != null && !result.isEmpty()) {
+                for (Event event : result) {
+                    if (!Context.getDataManager().getLastEvents(position.getDeviceId(),
+                            event.getType(), suppressRepeated).isEmpty()) {
+                        event = null;
+                    }
+                }
             }
-
         } catch (SQLException error) {
             Log.warning(error);
         }
-        return event;
+        return result;
     }
 
 }
diff --git a/src/org/traccar/events/OverspeedEventHandler.java b/src/org/traccar/events/OverspeedEventHandler.java
index 30410ff32..152fe6f22 100644
--- a/src/org/traccar/events/OverspeedEventHandler.java
+++ b/src/org/traccar/events/OverspeedEventHandler.java
@@ -1,6 +1,8 @@
 package org.traccar.events;
 
 import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Collection;
 
 import org.traccar.BaseEventHandler;
 import org.traccar.Context;
@@ -20,10 +22,10 @@ public class OverspeedEventHandler extends BaseEventHandler {
     }
 
     @Override
-    protected Event analizePosition(Position position) {
-        Event event = null;
+    protected Collection<Event> analizePosition(Position position) {
+        Collection<Event> events = new ArrayList<>();
         if (!isLastPosition()) {
-            return event;
+            return null;
         }
         double speed = position.getSpeed();
         boolean valid = position.getValid();
@@ -32,14 +34,14 @@ public class OverspeedEventHandler extends BaseEventHandler {
             try {
                 if (Context.getDataManager().getLastEvents(
                         position.getDeviceId(), Event.TYPE_DEVICE_OVERSPEED, suppressRepeated).isEmpty()) {
-                    event = new Event(Event.TYPE_DEVICE_OVERSPEED, position.getDeviceId(), position.getId());
+                    events.add(new Event(Event.TYPE_DEVICE_OVERSPEED, position.getDeviceId(), position.getId()));
                 }
             } catch (SQLException error) {
                 Log.warning(error);
             }
 
         }
-        return event;
+        return events;
     }
 
 }
diff --git a/src/org/traccar/model/Device.java b/src/org/traccar/model/Device.java
index 45c3d46dc..c42eb3718 100644
--- a/src/org/traccar/model/Device.java
+++ b/src/org/traccar/model/Device.java
@@ -16,6 +16,7 @@
 package org.traccar.model;
 
 import java.util.Date;
+import java.util.List;
 
 public class Device {
 
@@ -114,13 +115,13 @@ public class Device {
         this.motion = motion;
     }
 
-    private long geofenceId;
+    private List<Long> geofenceIds;
 
-    public long getGeofenceId() {
-        return geofenceId;
+    public List<Long> getGeofenceIds() {
+        return geofenceIds;
     }
 
-    public void setGeofenceId(long geofenceId) {
-        this.geofenceId = geofenceId;
+    public void setGeofenceIds(List<Long> geofenceIds) {
+        this.geofenceIds = geofenceIds;
     }
 }
diff --git a/src/org/traccar/model/UserDeviceGeofence.java b/src/org/traccar/model/DeviceGeofence.java
index c84aa46b8..f55c8ca69 100644
--- a/src/org/traccar/model/UserDeviceGeofence.java
+++ b/src/org/traccar/model/DeviceGeofence.java
@@ -1,16 +1,6 @@
 package org.traccar.model;
 
-public class UserDeviceGeofence {
-
-    private long userId;
-
-    public long getUserId() {
-        return userId;
-    }
-
-    public void setUserId(long userId) {
-        this.userId = userId;
-    }
+public class DeviceGeofence {
 
     private long deviceId;
 
diff --git a/src/org/traccar/model/Geofence.java b/src/org/traccar/model/Geofence.java
index 0723c21e0..300d8fb74 100644
--- a/src/org/traccar/model/Geofence.java
+++ b/src/org/traccar/model/Geofence.java
@@ -60,7 +60,7 @@ public class Geofence extends Extensible {
     }
 
     public void setGeometry(GeofenceGeometry geometry) {
-        area = geometry.toWKT();
+        area = geometry.toWkt();
         this.geometry = geometry;
     }