/* * 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.luke.models; import java.io.IOException; import java.util.Collection; import java.util.Objects; import org.apache.lucene.index.DirectoryReader; import org.apache.lucene.index.IndexCommit; import org.apache.lucene.index.IndexReader; import org.apache.lucene.luke.models.util.IndexUtils; import org.apache.lucene.store.Directory; import org.apache.lucene.util.Bits; /** * Abstract model class. It holds index reader object and provides basic features for all concrete sub classes. */ public abstract class LukeModel { protected Directory dir; protected IndexReader reader; protected Bits liveDocs; protected IndexCommit commit; protected LukeModel(IndexReader reader) { this.reader = Objects.requireNonNull(reader); if (reader instanceof DirectoryReader) { DirectoryReader dr = (DirectoryReader) reader; this.dir = dr.directory(); try { this.commit = dr.getIndexCommit(); } catch (IOException e) { throw new LukeException(e.getMessage(), e); } } else { this.dir = null; this.commit = null; } this.liveDocs = IndexUtils.getLiveDocs(reader); } protected LukeModel (Directory dir) { this.dir = Objects.requireNonNull(dir); } public Collection<String> getFieldNames() { return IndexUtils.getFieldNames(reader); } }