From d2f79ef95411e7be309eb7e0fc6a0ec1b2227a7d Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sat, 4 Oct 2014 13:43:06 +1300
Subject: Add filtering time limit

---
 default.cfg                        |  1 +
 src/org/traccar/FilterHandler.java | 21 +++++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/default.cfg b/default.cfg
index b67c7d50e..8c5cb2ddf 100644
--- a/default.cfg
+++ b/default.cfg
@@ -59,6 +59,7 @@
     
     <!-- Filtering options -->
     <!--<entry key='filter.enable'>true</entry>
+    <entry key='filter.limit'>3600</entry>
     <entry key='filter.invalid'>true</entry>
     <entry key='filter.zero'>true</entry>
     <entry key='filter.duplicate'>true</entry>
diff --git a/src/org/traccar/FilterHandler.java b/src/org/traccar/FilterHandler.java
index 18ae2ecae..5298f1d7f 100644
--- a/src/org/traccar/FilterHandler.java
+++ b/src/org/traccar/FilterHandler.java
@@ -33,6 +33,7 @@ public class FilterHandler extends OneToOneDecoder {
     private boolean filterZero;
     private boolean filterDuplicate;
     private int filterDistance;
+    private long filterLimit;
     
     private final Map<Long, Position> lastPositions = new HashMap<Long, Position>();
     
@@ -50,6 +51,9 @@ public class FilterHandler extends OneToOneDecoder {
 
         value = properties.getProperty("filter.distance");
         if (value != null) filterDistance = Integer.valueOf(value);
+
+        value = properties.getProperty("filter.limit");
+        if (value != null) filterLimit = Long.valueOf(value) * 1000;
     }
     
     private boolean filterInvalid(Position position) {
@@ -91,6 +95,19 @@ public class FilterHandler extends OneToOneDecoder {
         }
     }
     
+    private boolean filterLimit(Position position) {
+        if (filterLimit != 0) {
+            Position last = lastPositions.get(position.getDeviceId());
+            if (last != null) {
+                return (position.getTime().getTime() - last.getTime().getTime()) > filterLimit;
+            } else {
+                return false;
+            }
+        } else {
+            return false;
+        }
+    }
+    
     private boolean filter(Position p) {
         
         boolean result =
@@ -99,6 +116,10 @@ public class FilterHandler extends OneToOneDecoder {
                 filterDuplicate(p) ||
                 filterDistance(p);
         
+        if (filterLimit(p)) {
+            result = false;
+        }
+        
         if (!result) {
             lastPositions.put(p.getDeviceId(), p);
         } else {
-- 
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