From 6d4b8df25c7e942b9ad594db9444fe15bcb16be9 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Mon, 16 Apr 2018 14:37:32 +1200
Subject: Implement min period filtering

---
 src/org/traccar/FilterHandler.java | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

(limited to 'src/org/traccar')

diff --git a/src/org/traccar/FilterHandler.java b/src/org/traccar/FilterHandler.java
index 93f71d4e1..c6363813c 100644
--- a/src/org/traccar/FilterHandler.java
+++ b/src/org/traccar/FilterHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2014 - 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2014 - 2018 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -30,6 +30,7 @@ public class FilterHandler extends BaseDataHandler {
     private boolean filterStatic;
     private int filterDistance;
     private int filterMaxSpeed;
+    private long filterMinPeriod;
     private long skipLimit;
     private boolean skipAttributes;
 
@@ -69,6 +70,10 @@ public class FilterHandler extends BaseDataHandler {
         this.filterMaxSpeed = filterMaxSpeed;
     }
 
+    public void setFilterMinPeriod(int filterMinPeriod) {
+        this.filterMinPeriod = filterMinPeriod;
+    }
+
     public void setSkipLimit(long skipLimit) {
         this.skipLimit = skipLimit;
     }
@@ -89,6 +94,7 @@ public class FilterHandler extends BaseDataHandler {
             filterStatic = config.getBoolean("filter.static");
             filterDistance = config.getInteger("filter.distance");
             filterMaxSpeed = config.getInteger("filter.maxSpeed");
+            filterMinPeriod = config.getInteger("filter.minPeriod") * 1000;
             skipLimit = config.getLong("filter.skipLimit") * 1000;
             skipAttributes = config.getBoolean("filter.skipAttributes.enable");
         }
@@ -148,6 +154,14 @@ public class FilterHandler extends BaseDataHandler {
         return false;
     }
 
+    private boolean filterMinPeriod(Position position, Position last) {
+        if (filterMinPeriod != 0 && last != null) {
+            long time = position.getFixTime().getTime() - last.getFixTime().getTime();
+            return time > 0 && time < filterMinPeriod;
+        }
+        return false;
+    }
+
     private boolean skipLimit(Position position, Position last) {
         if (skipLimit != 0 && last != null) {
             return (position.getServerTime().getTime() - last.getServerTime().getTime()) > skipLimit;
@@ -208,6 +222,9 @@ public class FilterHandler extends BaseDataHandler {
         if (filterMaxSpeed(position, last)) {
             filterType.append("MaxSpeed ");
         }
+        if (filterMinPeriod(position, last)) {
+            filterType.append("MinPeriod ");
+        }
 
         if (filterType.length() > 0) {
 
@@ -216,8 +233,6 @@ public class FilterHandler extends BaseDataHandler {
             message.append(filterType.toString());
             message.append("filters from device: ");
             message.append(Context.getIdentityManager().getById(position.getDeviceId()).getUniqueId());
-            message.append(" with id: ");
-            message.append(position.getDeviceId());
 
             Log.info(message.toString());
             return true;
-- 
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