X-Git-Url: https://git.mdrn.pl/pylucene.git/blobdiff_plain/a2e61f0c04805cfcb8706176758d1283c7e3a55c..aaeed5504b982cf3545252ab528713250aa33eed:/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/tier/LatLongDistanceFilter.java diff --git a/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/tier/LatLongDistanceFilter.java b/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/tier/LatLongDistanceFilter.java deleted file mode 100644 index 44fba38..0000000 --- a/lucene-java-3.4.0/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/tier/LatLongDistanceFilter.java +++ /dev/null @@ -1,137 +0,0 @@ -/** - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF 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.apache.lucene.spatial.tier; - -import java.io.IOException; -import org.apache.lucene.index.IndexReader; -import org.apache.lucene.search.FilteredDocIdSet; -import org.apache.lucene.search.FieldCache; -import org.apache.lucene.search.Filter; -import org.apache.lucene.search.DocIdSet; -import org.apache.lucene.spatial.DistanceUtils; - - -/** - *
NOTE: This API is still in
- * flux and might change in incompatible ways in the next
- * release.
- */
-public class LatLongDistanceFilter extends DistanceFilter {
-
- /**
- *
- */
- private static final long serialVersionUID = 1L;
-
- double lat;
- double lng;
- String latField;
- String lngField;
-
- int nextOffset = 0;
-
- /**
- * Provide a distance filter based from a center point with a radius
- * in miles.
- * @param startingFilter Filter to start from
- * @param lat
- * @param lng
- * @param miles
- * @param latField
- * @param lngField
- */
- public LatLongDistanceFilter(Filter startingFilter, double lat, double lng, double miles, String latField, String lngField) {
- super(startingFilter, miles);
- this.lat = lat;
- this.lng = lng;
- this.latField = latField;
- this.lngField = lngField;
- }
-
- @Override
- public DocIdSet getDocIdSet(IndexReader reader) throws IOException {
-
- final double[] latIndex = FieldCache.DEFAULT.getDoubles(reader, latField);
- final double[] lngIndex = FieldCache.DEFAULT.getDoubles(reader, lngField);
-
- final int docBase = nextDocBase;
- nextDocBase += reader.maxDoc();
-
- return new FilteredDocIdSet(startingFilter.getDocIdSet(reader)) {
- @Override
- protected boolean match(int doc) {
- double x = latIndex[doc];
- double y = lngIndex[doc];
-
- // round off lat / longs if necessary
- // x = DistanceHandler.getPrecision(x, precise);
- // y = DistanceHandler.getPrecision(y, precise);
-
- String ck = Double.toString(x)+","+Double.toString(y);
- Double cachedDistance = distanceLookupCache.get(ck);
-
- double d;
- if (cachedDistance != null){
- d = cachedDistance.doubleValue();
- } else {
- d = DistanceUtils.getDistanceMi(lat, lng, x, y);
- distanceLookupCache.put(ck, d);
- }
-
- if (d < distance) {
- // Save distances, so they can be pulled for
- // sorting after filtering is done:
- distances.put(doc+docBase, d);
- return true;
- } else {
- return false;
- }
- }
- };
- }
-
- /** Returns true if o
is equal to this. */
- @Override
- public boolean equals(Object o) {
- if (this == o) return true;
- if (!(o instanceof LatLongDistanceFilter)) return false;
- LatLongDistanceFilter other = (LatLongDistanceFilter) o;
-
- if (!this.startingFilter.equals(other.startingFilter) ||
- this.distance != other.distance ||
- this.lat != other.lat ||
- this.lng != other.lng ||
- !this.latField.equals(other.latField) ||
- !this.lngField.equals(other.lngField)) {
- return false;
- }
- return true;
- }
-
- /** Returns a hash code value for this object.*/
- @Override
- public int hashCode() {
- int h = Double.valueOf(distance).hashCode();
- h ^= startingFilter.hashCode();
- h ^= Double.valueOf(lat).hashCode();
- h ^= Double.valueOf(lng).hashCode();
- h ^= latField.hashCode();
- h ^= lngField.hashCode();
- return h;
- }
-}