| /* |
| * 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.backward_codecs.lucene50; |
| |
| import java.io.IOException; |
| import org.apache.lucene.backward_codecs.lucene50.compressing.Lucene50RWCompressingStoredFieldsFormat; |
| import org.apache.lucene.codecs.StoredFieldsFormat; |
| import org.apache.lucene.codecs.StoredFieldsWriter; |
| import org.apache.lucene.codecs.compressing.CompressionMode; |
| import org.apache.lucene.index.SegmentInfo; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.store.IOContext; |
| |
| /** RW impersonation of Lucene50StoredFieldsFormat. */ |
| public final class Lucene50RWStoredFieldsFormat extends Lucene50StoredFieldsFormat { |
| |
| /** No-argument constructor. */ |
| public Lucene50RWStoredFieldsFormat() { |
| super(); |
| } |
| |
| /** Constructor that takes a mode. */ |
| public Lucene50RWStoredFieldsFormat(Lucene50StoredFieldsFormat.Mode mode) { |
| super(mode); |
| } |
| |
| @Override |
| public StoredFieldsWriter fieldsWriter(Directory directory, SegmentInfo si, IOContext context) |
| throws IOException { |
| String previous = si.putAttribute(MODE_KEY, mode.name()); |
| if (previous != null && previous.equals(mode.name()) == false) { |
| throw new IllegalStateException( |
| "found existing value for " |
| + MODE_KEY |
| + " for segment: " |
| + si.name |
| + "old=" |
| + previous |
| + ", new=" |
| + mode.name()); |
| } |
| return impl(mode).fieldsWriter(directory, si, context); |
| } |
| |
| @Override |
| StoredFieldsFormat impl(Mode mode) { |
| switch (mode) { |
| case BEST_SPEED: |
| return new Lucene50RWCompressingStoredFieldsFormat( |
| "Lucene50StoredFieldsFastData", CompressionMode.FAST, 1 << 14, 128, 10); |
| case BEST_COMPRESSION: |
| return new Lucene50RWCompressingStoredFieldsFormat( |
| "Lucene50StoredFieldsHighData", CompressionMode.HIGH_COMPRESSION, 61440, 512, 10); |
| default: |
| throw new AssertionError(); |
| } |
| } |
| } |