/* * 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.bbox; import java.io.IOException; import org.apache.lucene.index.DocValues; import org.apache.lucene.index.LeafReader; import org.apache.lucene.index.LeafReaderContext; import org.apache.lucene.index.NumericDocValues; import org.apache.lucene.spatial.ShapeValues; import org.apache.lucene.spatial.ShapeValuesSource; import org.locationtech.spatial4j.shape.Rectangle; import org.locationtech.spatial4j.shape.Shape; /** * A ShapeValuesSource returning a Rectangle from each document derived from four numeric fields * * @lucene.internal */ class BBoxValueSource extends ShapeValuesSource { private final BBoxStrategy strategy; public BBoxValueSource(BBoxStrategy strategy) { this.strategy = strategy; } @Override public String toString() { return "bboxShape(" + strategy.getFieldName() + ")"; } @Override public ShapeValues getValues(LeafReaderContext readerContext) throws IOException { LeafReader reader = readerContext.reader(); final NumericDocValues minX = DocValues.getNumeric(reader, strategy.field_minX); final NumericDocValues minY = DocValues.getNumeric(reader, strategy.field_minY); final NumericDocValues maxX = DocValues.getNumeric(reader, strategy.field_maxX); final NumericDocValues maxY = DocValues.getNumeric(reader, strategy.field_maxY); //reused final Rectangle rect = strategy.getSpatialContext().getShapeFactory().rect(0,0,0,0); return new ShapeValues() { @Override public boolean advanceExact(int doc) throws IOException { return minX.advanceExact(doc) && minY.advanceExact(doc) && maxX.advanceExact(doc) && maxY.advanceExact(doc); } @Override public Shape value() throws IOException { double minXValue = Double.longBitsToDouble(minX.longValue()); double minYValue = Double.longBitsToDouble(minY.longValue()); double maxXValue = Double.longBitsToDouble(maxX.longValue()); double maxYValue = Double.longBitsToDouble(maxY.longValue()); rect.reset(minXValue, maxXValue, minYValue, maxYValue); return rect; } }; } @Override public boolean isCacheable(LeafReaderContext ctx) { return DocValues.isCacheable(ctx, strategy.field_minX, strategy.field_minY, strategy.field_maxX, strategy.field_maxY); } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; BBoxValueSource that = (BBoxValueSource) o; if (!strategy.equals(that.strategy)) return false; return true; } @Override public int hashCode() { return strategy.hashCode(); } }