| package org.apache.lucene.index.codecs.simpletext; |
| |
| /** |
| * 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. |
| */ |
| |
| import java.io.IOException; |
| import java.util.Set; |
| |
| import org.apache.lucene.index.PerDocWriteState; |
| import org.apache.lucene.index.SegmentInfo; |
| import org.apache.lucene.index.SegmentWriteState; |
| import org.apache.lucene.index.SegmentReadState; |
| import org.apache.lucene.index.IndexFileNames; |
| import org.apache.lucene.index.codecs.Codec; |
| import org.apache.lucene.index.codecs.DefaultDocValuesProducer; |
| import org.apache.lucene.index.codecs.FieldsConsumer; |
| import org.apache.lucene.index.codecs.FieldsProducer; |
| import org.apache.lucene.index.codecs.PerDocConsumer; |
| import org.apache.lucene.index.codecs.DefaultDocValuesConsumer; |
| import org.apache.lucene.index.codecs.PerDocValues; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.util.BytesRef; |
| |
| /** For debugging, curiosity, transparency only!! Do not |
| * use this codec in production. |
| * |
| * <p>This codec stores all postings data in a single |
| * human-readable text file (_N.pst). You can view this in |
| * any text editor, and even edit it to alter your index. |
| * |
| * @lucene.experimental */ |
| public class SimpleTextCodec extends Codec { |
| |
| public SimpleTextCodec() { |
| name = "SimpleText"; |
| } |
| |
| @Override |
| public FieldsConsumer fieldsConsumer(SegmentWriteState state) throws IOException { |
| return new SimpleTextFieldsWriter(state); |
| } |
| |
| @Override |
| public FieldsProducer fieldsProducer(SegmentReadState state) throws IOException { |
| return new SimpleTextFieldsReader(state); |
| } |
| |
| /** Extension of freq postings file */ |
| static final String POSTINGS_EXTENSION = "pst"; |
| |
| static String getPostingsFileName(String segment, int id) { |
| return IndexFileNames.segmentFileName(segment, id, POSTINGS_EXTENSION); |
| } |
| |
| @Override |
| public void files(Directory dir, SegmentInfo segmentInfo, int id, Set<String> files) throws IOException { |
| files.add(getPostingsFileName(segmentInfo.name, id)); |
| DefaultDocValuesConsumer.files(dir, segmentInfo, id, files); |
| } |
| |
| @Override |
| public void getExtensions(Set<String> extensions) { |
| extensions.add(POSTINGS_EXTENSION); |
| DefaultDocValuesConsumer.getDocValuesExtensions(extensions); |
| } |
| |
| // TODO: would be great if these used a plain text impl |
| @Override |
| public PerDocConsumer docsConsumer(PerDocWriteState state) throws IOException { |
| return new DefaultDocValuesConsumer(state, BytesRef.getUTF8SortedAsUnicodeComparator()); |
| } |
| |
| @Override |
| public PerDocValues docsProducer(SegmentReadState state) throws IOException { |
| return new DefaultDocValuesProducer(state.segmentInfo, state.dir, state.fieldInfos, state.codecId); |
| } |
| } |