Merge pull request #2012 from Abyss777/master

Implement Geofences on server side

1 files changed, 92 insertions, 0 deletions

diff --git a/src/org/traccar/events/GeofenceEventHandler.java b/src/org/traccar/events/GeofenceEventHandler.java
new file mode 100644
index 000000000..e9a4a640f
--- /dev/null
+++ b/src/org/traccar/events/GeofenceEventHandler.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2016 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * 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.events;
+
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import org.traccar.BaseEventHandler;
+import org.traccar.Context;
+import org.traccar.database.DataManager;
+import org.traccar.database.GeofenceManager;
+import org.traccar.helper.Log;
+import org.traccar.model.Device;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+
+public class GeofenceEventHandler extends BaseEventHandler {
+
+    private int suppressRepeated;
+    private GeofenceManager geofenceManager;
+    private DataManager dataManager;
+
+    public GeofenceEventHandler() {
+        suppressRepeated = Context.getConfig().getInteger("event.suppressRepeated", 60);
+        geofenceManager = Context.getGeofenceManager();
+        dataManager = Context.getDataManager();
+    }
+
+    @Override
+    protected Collection<Event> analyzePosition(Position position) {
+        Device device = dataManager.getDeviceById(position.getDeviceId());
+        if (device == null) {
+            return null;
+        }
+        if (position.getId() != device.getPositionId() || !position.getValid()) {
+            return null;
+        }
+
+        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);
+
+        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);
+                }
+            }
+        } 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);
+                }
+            }
+        } catch (SQLException error) {
+            Log.warning(error);
+        }
+        return events;
+    }
+}