Geo: Makes coordinate validator in libs/geo plugable

libs/geo/src/main/java/org/elasticsearch/geo/geometry/Circle.java

@@ -49,8 +49,6 @@ public Circle(final double lat, final double lon, final double alt, final double
         if (radiusMeters < 0 ) {
             throw new IllegalArgumentException("Circle radius [" + radiusMeters + "] cannot be negative");
         }
-        GeometryUtils.checkLatitude(lat);
-        GeometryUtils.checkLongitude(lon);
     }
 
     @Override

libs/geo/src/main/java/org/elasticsearch/geo/geometry/Line.java

@@ -59,10 +59,6 @@ public Line(double[] lats, double[] lons, double[] alts) {
         if (alts != null && alts.length != lats.length) {
             throw new IllegalArgumentException("alts and lats must be equal length");
         }
-        for (int i = 0; i < lats.length; i++) {
-            GeometryUtils.checkLatitude(lats[i]);
-            GeometryUtils.checkLongitude(lons[i]);
-        }
     }
 
     public int length() {

libs/geo/src/main/java/org/elasticsearch/geo/geometry/Point.java

@@ -42,8 +42,6 @@ public Point(double lat, double lon) {
     }
 
     public Point(double lat, double lon, double alt) {
-        GeometryUtils.checkLatitude(lat);
-        GeometryUtils.checkLongitude(lon);
         this.lat = lat;
         this.lon = lon;
         this.alt = alt;

libs/geo/src/main/java/org/elasticsearch/geo/geometry/Rectangle.java

@@ -71,10 +71,6 @@ public Rectangle(double minLat, double maxLat, double minLon, double maxLon) {
      * Constructs a bounding box by first validating the provided latitude and longitude coordinates
      */
     public Rectangle(double minLat, double maxLat, double minLon, double maxLon, double minAlt, double maxAlt) {
-        GeometryUtils.checkLatitude(minLat);
-        GeometryUtils.checkLatitude(maxLat);
-        GeometryUtils.checkLongitude(minLon);
-        GeometryUtils.checkLongitude(maxLon);
         this.minLon = minLon;
         this.maxLon = maxLon;
         this.minLat = minLat;
@@ -90,17 +86,6 @@ public Rectangle(double minLat, double maxLat, double minLon, double maxLon, dou
         }
     }
 
-    public double getWidth() {
-        if (crossesDateline()) {
-            return GeometryUtils.MAX_LON_INCL - minLon + maxLon - GeometryUtils.MIN_LON_INCL;
-        }
-        return maxLon - minLon;
-    }
-
-    public double getHeight() {
-        return maxLat - minLat;
-    }
-
     public double getMinLat() {
         return minLat;
     }
@@ -156,21 +141,6 @@ public String toString() {
         return b.toString();
     }
 
-    /**
-     * Returns true if this bounding box crosses the dateline
-     */
-    public boolean crossesDateline() {
-        return maxLon < minLon;
-    }
-
-    /** returns true if rectangle (defined by minLat, maxLat, minLon, maxLon) contains the lat lon point */
-    public boolean containsPoint(final double lat, final double lon) {
-        if (lat >= minLat && lat <= maxLat) {
-            return crossesDateline() ? lon >= minLon || lon <= maxLon : lon >= minLon && lon <= maxLon;
-        }
-        return false;
-    }
-
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;

libs/geo/src/main/java/org/elasticsearch/geo/utils/GeographyValidator.java

@@ -0,0 +1,178 @@
+/*
+ * Licensed to Elasticsearch under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch licenses this file to you 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.elasticsearch.geo.utils;
+
+import org.elasticsearch.geo.geometry.Circle;
+import org.elasticsearch.geo.geometry.Geometry;
+import org.elasticsearch.geo.geometry.GeometryCollection;
+import org.elasticsearch.geo.geometry.GeometryVisitor;
+import org.elasticsearch.geo.geometry.Line;
+import org.elasticsearch.geo.geometry.LinearRing;
+import org.elasticsearch.geo.geometry.MultiLine;
+import org.elasticsearch.geo.geometry.MultiPoint;
+import org.elasticsearch.geo.geometry.MultiPolygon;
+import org.elasticsearch.geo.geometry.Point;
+import org.elasticsearch.geo.geometry.Polygon;
+import org.elasticsearch.geo.geometry.Rectangle;
+
+/**
+ * Validator that checks that lats are between -90 and +90 and lons are between -180 and +180 and altitude is present only if
+ * ignoreZValue is set to true
+ */
+public class GeographyValidator implements GeometryValidator {
+
+    /**
+     * Minimum longitude value.
+     */
+    private static final double MIN_LON_INCL = -180.0D;
+
+    /**
+     * Maximum longitude value.
+     */
+    private static final double MAX_LON_INCL = 180.0D;
+
+    /**
+     * Minimum latitude value.
+     */
+    private static final double MIN_LAT_INCL = -90.0D;
+
+    /**
+     * Maximum latitude value.
+     */
+    private static final double MAX_LAT_INCL = 90.0D;
+
+    private final boolean ignoreZValue;
+
+    public GeographyValidator(boolean ignoreZValue) {
+        this.ignoreZValue = ignoreZValue;
+    }
+
+    /**
+     * validates latitude value is within standard +/-90 coordinate bounds
+     */
+    protected void checkLatitude(double latitude) {
+        if (Double.isNaN(latitude) || latitude < MIN_LAT_INCL || latitude > MAX_LAT_INCL) {
+            throw new IllegalArgumentException(
+                "invalid latitude " + latitude + "; must be between " + MIN_LAT_INCL + " and " + MAX_LAT_INCL);
+        }
+    }
+
+    /**
+     * validates longitude value is within standard +/-180 coordinate bounds
+     */
+    protected void checkLongitude(double longitude) {
+        if (Double.isNaN(longitude) || longitude < MIN_LON_INCL || longitude > MAX_LON_INCL) {
+            throw new IllegalArgumentException(
+                "invalid longitude " + longitude + "; must be between " + MIN_LON_INCL + " and " + MAX_LON_INCL);
+        }
+    }
+
+    protected void checkAltitude(double zValue) {
+        if (ignoreZValue == false && Double.isNaN(zValue) == false) {
+            throw new IllegalArgumentException("found Z value [" + zValue + "] but [ignore_z_value] "
+                + "parameter is [" + ignoreZValue + "]");
+        }
+    }
+
+    @Override
+    public void validate(Geometry geometry) {
+        geometry.visit(new GeometryVisitor<Void, RuntimeException>() {
+
+            @Override
+            public Void visit(Circle circle) throws RuntimeException {
+                checkLatitude(circle.getLat());
+                checkLongitude(circle.getLon());
+                checkAltitude(circle.getAlt());
+                return null;
+            }
+
+            @Override
+            public Void visit(GeometryCollection<?> collection) throws RuntimeException {
+                for (Geometry g : collection) {
+                    g.visit(this);
+                }
+                return null;
+            }
+
+            @Override
+            public Void visit(Line line) throws RuntimeException {
+                for (int i = 0; i < line.length(); i++) {
+                    checkLatitude(line.getLat(i));
+                    checkLongitude(line.getLon(i));
+                    checkAltitude(line.getAlt(i));
+                }
+                return null;
+            }
+
+            @Override
+            public Void visit(LinearRing ring) throws RuntimeException {
+                for (int i = 0; i < ring.length(); i++) {
+                    checkLatitude(ring.getLat(i));
+                    checkLongitude(ring.getLon(i));
+                    checkAltitude(ring.getAlt(i));
+                }
+                return null;
+            }
+
+            @Override
+            public Void visit(MultiLine multiLine) throws RuntimeException {
+                return visit((GeometryCollection<?>) multiLine);
+            }
+
+            @Override
+            public Void visit(MultiPoint multiPoint) throws RuntimeException {
+                return visit((GeometryCollection<?>) multiPoint);
+            }
+
+            @Override
+            public Void visit(MultiPolygon multiPolygon) throws RuntimeException {
+                return visit((GeometryCollection<?>) multiPolygon);
+            }
+
+            @Override
+            public Void visit(Point point) throws RuntimeException {
+                checkLatitude(point.getLat());
+                checkLongitude(point.getLon());
+                checkAltitude(point.getAlt());
+                return null;
+            }
+
+            @Override
+            public Void visit(Polygon polygon) throws RuntimeException {
+                polygon.getPolygon().visit(this);
+                for (int i = 0; i < polygon.getNumberOfHoles(); i++) {
+                    polygon.getHole(i).visit(this);
+                }
+                return null;
+            }
+
+            @Override
+            public Void visit(Rectangle rectangle) throws RuntimeException {
+                checkLatitude(rectangle.getMinLat());
+                checkLatitude(rectangle.getMaxLat());
+                checkLongitude(rectangle.getMinLon());
+                checkLongitude(rectangle.getMaxLon());
+                checkAltitude(rectangle.getMinAlt());
+                checkAltitude(rectangle.getMaxAlt());
+                return null;
+            }
+        });
+    }
+}

libs/geo/src/main/java/org/elasticsearch/geo/utils/GeometryValidator.java

@@ -0,0 +1,34 @@
+/*
+ * Licensed to Elasticsearch under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch licenses this file to you 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.elasticsearch.geo.utils;
+
+import org.elasticsearch.geo.geometry.Geometry;
+
+/**
+ * Generic geometry validator that can be used by the parser to verify the validity of the parsed geometry
+ */
+public interface GeometryValidator {
+
+    /**
+     * Validates the geometry and throws IllegalArgumentException if the geometry is not valid
+     */
+    void validate(Geometry geometry);
+
+}