| /* |
| * 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.cassandra.io.sstable.format; |
| |
| import com.google.common.base.CharMatcher; |
| import org.apache.cassandra.config.CFMetaData; |
| import org.apache.cassandra.db.RowIndexEntry; |
| import org.apache.cassandra.db.SerializationHeader; |
| import org.apache.cassandra.io.sstable.format.big.BigFormat; |
| |
| /** |
| * Provides the accessors to data on disk. |
| */ |
| public interface SSTableFormat |
| { |
| static boolean enableSSTableDevelopmentTestMode = Boolean.valueOf(System.getProperty("cassandra.test.sstableformatdevelopment","false")); |
| |
| |
| Version getLatestVersion(); |
| Version getVersion(String version); |
| |
| SSTableWriter.Factory getWriterFactory(); |
| SSTableReader.Factory getReaderFactory(); |
| |
| RowIndexEntry.IndexSerializer<?> getIndexSerializer(CFMetaData cfm, Version version, SerializationHeader header); |
| |
| public static enum Type |
| { |
| //Used internally to refer to files with no |
| //format flag in the filename |
| LEGACY("big", BigFormat.instance), |
| |
| //The original sstable format |
| BIG("big", BigFormat.instance); |
| |
| public final SSTableFormat info; |
| public final String name; |
| |
| private Type(String name, SSTableFormat info) |
| { |
| //Since format comes right after generation |
| //we disallow formats with numeric names |
| assert !CharMatcher.DIGIT.matchesAllOf(name); |
| |
| this.name = name; |
| this.info = info; |
| } |
| |
| public static Type validate(String name) |
| { |
| for (Type valid : Type.values()) |
| { |
| //This is used internally for old sstables |
| if (valid == LEGACY) |
| continue; |
| |
| if (valid.name.equalsIgnoreCase(name)) |
| return valid; |
| } |
| |
| throw new IllegalArgumentException("No Type constant " + name); |
| } |
| } |
| } |