+++ /dev/null
-/**
- * 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.benchmark.quality.utils;
-
-import java.io.IOException;
-
-import org.apache.lucene.document.FieldSelector;
-import org.apache.lucene.document.FieldSelectorResult;
-import org.apache.lucene.search.Searcher;
-
-/**
- * Utility: extract doc names from an index
- */
-public class DocNameExtractor {
-
- private FieldSelector fldSel;
- private String docNameField;
-
- /**
- * Constructor for DocNameExtractor.
- * @param docNameField name of the stored field containing the doc name.
- */
- public DocNameExtractor (final String docNameField) {
- this.docNameField = docNameField;
- fldSel = new FieldSelector() {
- public FieldSelectorResult accept(String fieldName) {
- return fieldName.equals(docNameField) ?
- FieldSelectorResult.LOAD_AND_BREAK :
- FieldSelectorResult.NO_LOAD;
- }
- };
- }
-
- /**
- * Extract the name of the input doc from the index.
- * @param searcher access to the index.
- * @param docid ID of doc whose name is needed.
- * @return the name of the input doc as extracted from the index.
- * @throws IOException if cannot extract the doc name from the index.
- */
- public String docName(Searcher searcher, int docid) throws IOException {
- return searcher.doc(docid,fldSel).get(docNameField);
- }
-
-}