| /* |
| * 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 java.util.Objects; |
| |
| import org.apache.lucene.index.BinaryDocValues; |
| import org.apache.lucene.index.DocValues; |
| import org.apache.lucene.index.IndexReader; |
| import org.apache.lucene.index.LeafReader; |
| import org.apache.lucene.index.LeafReaderContext; |
| 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; |
| |
| abstract class BinaryRangeFieldRangeQuery extends Query { |
| private final String field; |
| private byte[] queryPackedValue; |
| private final int numBytesPerDimension; |
| private final int numDims; |
| private final RangeFieldQuery.QueryType queryType; |
| |
| BinaryRangeFieldRangeQuery(String field, byte[] queryPackedValue, int numBytesPerDimension, int numDims, |
| RangeFieldQuery.QueryType queryType) { |
| this.field = field; |
| this.queryPackedValue = queryPackedValue; |
| this.numBytesPerDimension = numBytesPerDimension; |
| this.numDims = numDims; |
| |
| if (!(queryType == RangeFieldQuery.QueryType.INTERSECTS)) { |
| throw new UnsupportedOperationException("INTERSECTS is the only query type supported for this field type right now"); |
| } |
| |
| this.queryType = queryType; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (sameClassAs(obj) == false) { |
| return false; |
| } |
| BinaryRangeFieldRangeQuery that = (BinaryRangeFieldRangeQuery) obj; |
| return Objects.equals(field, that.field) |
| && Arrays.equals(queryPackedValue, that.queryPackedValue); |
| } |
| |
| @Override |
| public int hashCode() { |
| int h = classHash(); |
| h = 31 * h + field.hashCode(); |
| h = 31 * h + Arrays.hashCode(queryPackedValue); |
| return h; |
| } |
| |
| @Override |
| public void visit(QueryVisitor visitor) { |
| if (visitor.acceptField(field)) { |
| visitor.visitLeaf(this); |
| } |
| } |
| |
| @Override |
| public Query rewrite(IndexReader reader) throws IOException { |
| return super.rewrite(reader); |
| } |
| |
| private BinaryRangeDocValues getValues(LeafReader reader, String field) throws IOException { |
| BinaryDocValues binaryDocValues = reader.getBinaryDocValues(field); |
| |
| return new BinaryRangeDocValues(binaryDocValues, numDims, numBytesPerDimension); |
| } |
| |
| |
| @Override |
| public Weight createWeight(IndexSearcher searcher, ScoreMode scoreMode, float boost) throws IOException { |
| return new ConstantScoreWeight(this, boost) { |
| |
| @Override |
| public Scorer scorer(LeafReaderContext context) throws IOException { |
| BinaryRangeDocValues values = getValues(context.reader(), field); |
| if (values == null) { |
| return null; |
| } |
| |
| final TwoPhaseIterator iterator; |
| iterator = new TwoPhaseIterator(values) { |
| @Override |
| public boolean matches() { |
| return queryType.matches(queryPackedValue, values.getPackedValue(), numDims, numBytesPerDimension); |
| } |
| |
| @Override |
| public float matchCost() { |
| return queryPackedValue.length; |
| } |
| }; |
| |
| return new ConstantScoreScorer(this, score(), scoreMode, iterator); |
| } |
| |
| @Override |
| public boolean isCacheable(LeafReaderContext ctx) { |
| return DocValues.isCacheable(ctx, field); |
| } |
| |
| }; |
| } |
| } |