5 files changed, 67 insertions, 62 deletions
diff --git a/src/org/traccar/BasePipelineFactory.java b/src/org/traccar/BasePipelineFactory.java
index 6c4a6b5bd..216e48709 100644
--- a/src/org/traccar/BasePipelineFactory.java
+++ b/src/org/traccar/BasePipelineFactory.java
@@ -37,7 +37,7 @@ public abstract class BasePipelineFactory implements ChannelPipelineFactory {
     private int resetDelay;
 
     private FilterHandler filterHandler;
-    private OdometerHandler odometerHandler;
+    private DistanceHandler distanceHandler;
     private ReverseGeocoderHandler reverseGeocoderHandler;
 
     protected class OpenChannelHandler extends SimpleChannelHandler {
@@ -96,6 +96,10 @@ public abstract class BasePipelineFactory implements ChannelPipelineFactory {
             reverseGeocoderHandler = new ReverseGeocoderHandler(
                     Context.getReverseGeocoder(), Context.getConfig().getBoolean("geocode.processInvalidPositions"));
         }
+
+        if (Context.getConfig().getBoolean("distance.enable")) {
+            distanceHandler = new DistanceHandler();
+        }
     }
 
     protected abstract void addSpecificHandlers(ChannelPipeline pipeline);
@@ -114,8 +118,8 @@ public abstract class BasePipelineFactory implements ChannelPipelineFactory {
         if (filterHandler != null) {
             pipeline.addLast("filter", filterHandler);
         }
-        if (odometerHandler != null) {
-            pipeline.addLast("odometer", odometerHandler);
+        if (distanceHandler != null) {
+            pipeline.addLast("distance", distanceHandler);
         }
         if (reverseGeocoderHandler != null) {
             pipeline.addLast("geocoder", reverseGeocoderHandler);
diff --git a/src/org/traccar/DistanceHandler.java b/src/org/traccar/DistanceHandler.java
new file mode 100644
index 000000000..57dddfe87
--- /dev/null
+++ b/src/org/traccar/DistanceHandler.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2015 Amila Silva
+ *
+ * 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;
+
+import org.traccar.helper.DistanceCalculator;
+import org.traccar.model.Event;
+import org.traccar.model.Position;
+
+import java.math.BigDecimal;
+
+public class DistanceHandler extends BaseDataHandler {
+
+    private Position getLastPosition(long deviceId) {
+        if (Context.getConnectionManager() != null) {
+            return Context.getConnectionManager().getLastPosition(deviceId);
+        }
+        return null;
+    }
+
+    public Position calculateDistance(Position position) {
+
+        double distance = 0.0;
+
+        Position last = getLastPosition(position.getDeviceId());
+        if (last != null) {
+            if (last.getOther().containsKey(Event.KEY_DISTANCE)) {
+                distance = ((Number) last.getOther().get(Event.KEY_DISTANCE)).doubleValue();
+            }
+
+            distance += DistanceCalculator.distance(
+                    position.getLatitude(), position.getLongitude(),
+                    last.getLatitude(), last.getLongitude());
+
+            distance = BigDecimal.valueOf(distance).setScale(2).doubleValue();
+        }
+
+        position.set(Event.KEY_DISTANCE, distance);
+        return position;
+    }
+
+    @Override
+    protected Position handlePosition(Position position) {
+        return calculateDistance(position);
+    }
+
+}
diff --git a/src/org/traccar/OdometerHandler.java b/src/org/traccar/OdometerHandler.java
deleted file mode 100644
index d5860c02e..000000000
--- a/src/org/traccar/OdometerHandler.java
+++ /dev/null
@@ -1,55 +0,0 @@
-/**
- * 
- */
-package org.traccar;
-
-import org.traccar.helper.DistanceCalculator;
-import org.traccar.helper.Log;
-import org.traccar.model.Position;
-
-/**
- * <p>
- * Odometer - total mileage calculation 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) {
-            // set odometer only on movement
-            double odometer = 0.0;
-            if (last.getSpeed() == 0 && position.getSpeed() == 0) {
-                odometer = last.getOdometer();
-            } else {
-                double distance = DistanceCalculator.distance(
-                        position.getLatitude(), position.getLongitude(),
-                        last.getLatitude(), last.getLongitude());
-                distance = Math.round((distance) * 100.0) / 100.0;
-                odometer = distance + last.getOdometer();
-            }
-            position.setOdometer(odometer);
-        }
-        return position;
-    }
-
-    @Override
-    protected Position handlePosition(Position position) {
-        return calculateDistance(position);
-    }
-
-}
diff --git a/src/org/traccar/model/Event.java b/src/org/traccar/model/Event.java
index df9a9a8e5..831ae31b3 100644
--- a/src/org/traccar/model/Event.java
+++ b/src/org/traccar/model/Event.java
@@ -78,6 +78,7 @@ public abstract class Event {
     public static final String KEY_CHARGE = "charge";
     public static final String KEY_IP = "ip";
     public static final String KEY_ARCHIVE = "archive";
+    public static final String KEY_DISTANCE = "distance";
 
     // Starts with 1 not 0
     public static final String PREFIX_TEMP = "temp";
diff --git a/src/org/traccar/model/Position.java b/src/org/traccar/model/Position.java
index 0c928439c..62c999d94 100644
--- a/src/org/traccar/model/Position.java
+++ b/src/org/traccar/model/Position.java
@@ -56,10 +56,6 @@ public class Position extends Event implements Factory {
     private double course;
     public double getCourse() { return course; }
     public void setCourse(double course) { this.course = course; }
-    
-    private double odometer; // value in meters
-    public double getOdometer() { return odometer; }
-    public void setOdometer(double odometer) { this.odometer = odometer; }
 
     private String address;
     public String getAddress() { return address; }