1 files changed, 52 insertions, 0 deletions
diff --git a/src/org/traccar/OdometerHandler.java b/src/org/traccar/OdometerHandler.java
new file mode 100644
index 000000000..781dd274d
--- /dev/null
+++ b/src/org/traccar/OdometerHandler.java
@@ -0,0 +1,52 @@
+/**
+ * 
+ */
+package org.traccar;
+
+import org.traccar.helper.DistanceCalculator;
+import org.traccar.helper.Log;
+import org.traccar.model.Position;
+
+/**
+ * <p>
+ *  Odometer handler
+ * </p>
+ * 
+ * @author Amila Silva
+ *
+ */
+public class ODOMeterHandler extends BaseDataHandler {
+
+	public ODOMeterHandler() {
+		Log.debug("System based odometer calculation enabled for all devices");
+	}
+
+	private Position getLastPosition(long deviceId) {
+		if (Context.getConnectionManager() != null) {
+			return Context.getConnectionManager().getLastPosition(deviceId);
+		}
+		return null;
+	}
+
+	private Position calculateDistance(Position position) {
+		Position last = getLastPosition(position.getDeviceId());
+		if (last != null) {
+			double distance = DistanceCalculator.distance(
+					position.getLatitude(), position.getLongitude(),
+					last.getLatitude(), last.getLongitude());
+			distance = Math.round((distance) * 100.0) / 100.0;
+			double odoMeter = distance + last.getOdoMeter();
+//			Log.debug("::: Device Course : " + position.getDeviceId()
+//					+ ", Distance :" + distance + "m, Odometer :" + odoMeter
+//					+ " m");
+			position.setOdoMeter(odoMeter);
+		}
+		return position;
+	}
+
+	@Override
+	protected Position handlePosition(Position position) {
+		return calculateDistance(position);
+	}
+
+}