From b0d5474b5da7ba2a0fc32646ca893a9b553bcbc0 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Wed, 8 Jul 2020 23:35:12 -0700
Subject: Remove unused files

---
 src/main/java/org/traccar/helper/LocationTree.java | 125 ---------------------
 .../java/org/traccar/helper/LocationTreeTest.java  |  30 -----
 2 files changed, 155 deletions(-)
 delete mode 100644 src/main/java/org/traccar/helper/LocationTree.java
 delete mode 100644 src/test/java/org/traccar/helper/LocationTreeTest.java

diff --git a/src/main/java/org/traccar/helper/LocationTree.java b/src/main/java/org/traccar/helper/LocationTree.java
deleted file mode 100644
index 3aff3ce33..000000000
--- a/src/main/java/org/traccar/helper/LocationTree.java
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * Copyright 2016 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.
- * 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.helper;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.List;
-
-public class LocationTree {
-
-    public static class Item {
-
-        private Item left, right;
-        private float x, y;
-        private String data;
-
-        public Item(float x, float y) {
-            this(x, y, null);
-        }
-
-        public Item(float x, float y, String data) {
-            this.x = x;
-            this.y = y;
-            this.data = data;
-        }
-
-        public String getData() {
-            return data;
-        }
-
-        private float squaredDistance(Item item) {
-            return (x - item.x) * (x - item.x) + (y - item.y) * (y - item.y);
-        }
-
-        private float axisSquaredDistance(Item item, int axis) {
-            if (axis == 0) {
-                return (x - item.x) * (x - item.x);
-            } else {
-                return (y - item.y) * (y - item.y);
-            }
-        }
-
-    }
-
-    private Item root;
-
-    private ArrayList<Comparator<Item>> comparators = new ArrayList<>();
-
-    public LocationTree(List<Item> items) {
-        comparators.add(new Comparator<Item>() {
-            @Override
-            public int compare(Item o1, Item o2) {
-                return Float.compare(o1.x, o2.x);
-            }
-        });
-        comparators.add(new Comparator<Item>() {
-            @Override
-            public int compare(Item o1, Item o2) {
-                return Float.compare(o1.y, o2.y);
-            }
-        });
-        root = createTree(items, 0);
-    }
-
-    private Item createTree(List<Item> items, int depth) {
-        if (items.isEmpty()) {
-            return null;
-        }
-        Collections.sort(items, comparators.get(depth % 2));
-        int currentIndex = items.size() / 2;
-        Item median = items.get(currentIndex);
-        median.left = createTree(new ArrayList<>(items.subList(0, currentIndex)), depth + 1);
-        median.right = createTree(new ArrayList<>(items.subList(currentIndex + 1, items.size())), depth + 1);
-        return median;
-    }
-
-    public Item findNearest(Item search) {
-        return findNearest(root, search, 0);
-    }
-
-    private Item findNearest(Item current, Item search, int depth) {
-        int direction = comparators.get(depth % 2).compare(search, current);
-
-        Item next, other;
-        if (direction < 0) {
-            next = current.left;
-            other = current.right;
-        } else {
-            next = current.right;
-            other = current.left;
-        }
-
-        Item best = current;
-        if (next != null) {
-            best = findNearest(next, search, depth + 1);
-        }
-
-        if (current.squaredDistance(search) < best.squaredDistance(search)) {
-            best = current;
-        }
-        if (other != null && current.axisSquaredDistance(search, depth % 2) < best.squaredDistance(search)) {
-            Item possibleBest = findNearest(other, search, depth + 1);
-            if (possibleBest.squaredDistance(search) < best.squaredDistance(search)) {
-                best = possibleBest;
-            }
-        }
-
-        return best;
-    }
-
-}
diff --git a/src/test/java/org/traccar/helper/LocationTreeTest.java b/src/test/java/org/traccar/helper/LocationTreeTest.java
deleted file mode 100644
index 21604144a..000000000
--- a/src/test/java/org/traccar/helper/LocationTreeTest.java
+++ /dev/null
@@ -1,30 +0,0 @@
-package org.traccar.helper;
-
-import org.junit.Test;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import static org.junit.Assert.assertEquals;
-
-public class LocationTreeTest {
-    
-    @Test
-    public void testLocationTree() {
-
-        List<LocationTree.Item> items = new ArrayList<>();
-        items.add(new LocationTree.Item(1, 1, "a"));
-        items.add(new LocationTree.Item(3, 2, "b"));
-        items.add(new LocationTree.Item(1, 3, "c"));
-        items.add(new LocationTree.Item(4, 3, "d"));
-
-        LocationTree tree = new LocationTree(items);
-
-        assertEquals("a", tree.findNearest(new LocationTree.Item(1f, 1f)).getData());
-        assertEquals("d", tree.findNearest(new LocationTree.Item(10f, 10f)).getData());
-        assertEquals("c", tree.findNearest(new LocationTree.Item(1f, 2.5f)).getData());
-        assertEquals("a", tree.findNearest(new LocationTree.Item(1.5f, 1.5f)).getData());
-
-    }
-
-}
-- 
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