Implement maintenance event

1 files changed, 70 insertions, 0 deletions

diff --git a/src/org/traccar/events/MaintenanceEventHandler.java b/src/org/traccar/events/MaintenanceEventHandler.java
new file mode 100644
index 000000000..078848b86
--- /dev/null
+++ b/src/org/traccar/events/MaintenanceEventHandler.java
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 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.events;
+
+import java.util.ArrayList;
+import java.util.Collection;
+
+import org.traccar.BaseEventHandler;
+import org.traccar.Context;
+import org.traccar.model.Device;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+
+public class MaintenanceEventHandler extends BaseEventHandler {
+
+    public static final String ATTRIBUTE_MAINTENANCE_START = "device.maintenanceStart";
+    public static final String ATTRIBUTE_MAINTENANCE_INTERVAL = "device.maintenanceInterval";
+
+    @Override
+    protected Collection<Event> analyzePosition(Position position) {
+        Device device = Context.getIdentityManager().getDeviceById(position.getDeviceId());
+        if (device == null || !Context.getIdentityManager().isLatestPosition(position)) {
+            return null;
+        }
+
+        double maintenanceInterval = Context.getDeviceManager()
+                .lookupServerDouble(device.getId(), ATTRIBUTE_MAINTENANCE_INTERVAL, 0);
+        if (maintenanceInterval == 0) {
+            return null;
+        }
+        double maintenanceStart = Context.getDeviceManager()
+                .lookupServerDouble(device.getId(), ATTRIBUTE_MAINTENANCE_START, 0);
+
+        Collection<Event> events = new ArrayList<>();
+        double oldTotalDistance = 0.0;
+        double newTotalDistance = 0.0;
+
+        Position lastPosition = Context.getIdentityManager().getLastPosition(position.getDeviceId());
+        if (lastPosition != null && lastPosition.getAttributes().containsKey(Position.KEY_TOTAL_DISTANCE)) {
+            oldTotalDistance = ((Number) lastPosition.getAttributes().get(Position.KEY_TOTAL_DISTANCE)).doubleValue();
+        }
+
+        if (position.getAttributes().containsKey(Position.KEY_TOTAL_DISTANCE)) {
+            newTotalDistance = ((Number) position.getAttributes().get(Position.KEY_TOTAL_DISTANCE)).doubleValue();
+        }
+
+        oldTotalDistance -= maintenanceStart;
+        newTotalDistance -= maintenanceStart;
+        if ((long) (oldTotalDistance / maintenanceInterval) < (long) (newTotalDistance / maintenanceInterval)) {
+            events.add(new Event(Event.TYPE_MAINTENANCE_NEED, position.getDeviceId(), position.getId()));
+        }
+
+        return events;
+    }
+
+}