| /* |
| * 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); |
| } |
| |
| } |