/* * 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.document; import java.io.IOException; import java.util.Arrays; import org.apache.lucene.geo.Component2D; import org.apache.lucene.geo.XYEncodingUtils; import org.apache.lucene.geo.XYGeometry; import org.apache.lucene.index.DocValues; import org.apache.lucene.index.LeafReaderContext; import org.apache.lucene.index.SortedNumericDocValues; import org.apache.lucene.search.ConstantScoreScorer; import org.apache.lucene.search.ConstantScoreWeight; import org.apache.lucene.search.IndexSearcher; import org.apache.lucene.search.Query; import org.apache.lucene.search.QueryVisitor; import org.apache.lucene.search.ScoreMode; import org.apache.lucene.search.Scorer; import org.apache.lucene.search.TwoPhaseIterator; import org.apache.lucene.search.Weight; /** XYGeometry query for {@link XYDocValuesField}. */ public class XYDocValuesPointInGeometryQuery extends Query { private final String field; private final XYGeometry[] geometries; XYDocValuesPointInGeometryQuery(String field, XYGeometry... geometries) { if (field == null) { throw new IllegalArgumentException("field must not be null"); } if (geometries == null) { throw new IllegalArgumentException("geometries must not be null"); } if (geometries.length == 0) { throw new IllegalArgumentException("geometries must not be empty"); } for (int i = 0; i < geometries.length; i++) { if (geometries[i] == null) { throw new IllegalArgumentException("geometries[" + i + "] must not be null"); } } this.field = field; this.geometries = geometries.clone(); } @Override public String toString(String field) { StringBuilder sb = new StringBuilder(); if (!this.field.equals(field)) { sb.append(this.field); sb.append(':'); } sb.append("geometries(").append(Arrays.toString(geometries)); return sb.append(")").toString(); } @Override public boolean equals(Object obj) { if (sameClassAs(obj) == false) { return false; } XYDocValuesPointInGeometryQuery other = (XYDocValuesPointInGeometryQuery) obj; return field.equals(other.field) && Arrays.equals(geometries, other.geometries); } @Override public int hashCode() { int h = classHash(); h = 31 * h + field.hashCode(); h = 31 * h + Arrays.hashCode(geometries); return h; } @Override public void visit(QueryVisitor visitor) { if (visitor.acceptField(field)) { visitor.visitLeaf(this); } } @Override public Weight createWeight(IndexSearcher searcher, ScoreMode scoreMode, float boost) throws IOException { return new ConstantScoreWeight(this, boost) { final Component2D component2D = XYGeometry.create(geometries); @Override public Scorer scorer(LeafReaderContext context) throws IOException { final SortedNumericDocValues values = context.reader().getSortedNumericDocValues(field); if (values == null) { return null; } final TwoPhaseIterator iterator = new TwoPhaseIterator(values) { @Override public boolean matches() throws IOException { for (int i = 0, count = values.docValueCount(); i < count; ++i) { final long value = values.nextValue(); final double x = XYEncodingUtils.decode((int) (value >>> 32)); final double y = XYEncodingUtils.decode((int) (value & 0xFFFFFFFF)); if (component2D.contains(x, y)) { return true; } } return false; } @Override public float matchCost() { return 1000f; // TODO: what should it be? } }; return new ConstantScoreScorer(this, boost, scoreMode, iterator); } @Override public boolean isCacheable(LeafReaderContext ctx) { return DocValues.isCacheable(ctx, field); } }; } }