| /* |
| * 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.jackrabbit.oak.segment.remote; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.UUID; |
| |
| public class RemoteBlobMetadata { |
| |
| public static final String METADATA_TYPE = "type"; |
| |
| public static final String METADATA_SEGMENT_UUID = "uuid"; |
| |
| public static final String METADATA_SEGMENT_POSITION = "position"; |
| |
| public static final String METADATA_SEGMENT_GENERATION = "generation"; |
| |
| public static final String METADATA_SEGMENT_FULL_GENERATION = "fullGeneration"; |
| |
| public static final String METADATA_SEGMENT_COMPACTED = "compacted"; |
| |
| public static final String TYPE_SEGMENT = "segment"; |
| |
| public static HashMap<String, String> toSegmentMetadata(RemoteSegmentArchiveEntry indexEntry) { |
| HashMap<String, String> map = new HashMap<>(); |
| map.put(METADATA_TYPE, TYPE_SEGMENT); |
| map.put(METADATA_SEGMENT_UUID, new UUID(indexEntry.getMsb(), indexEntry.getLsb()).toString()); |
| map.put(METADATA_SEGMENT_POSITION, String.valueOf(indexEntry.getPosition())); |
| map.put(METADATA_SEGMENT_GENERATION, String.valueOf(indexEntry.getGeneration())); |
| map.put(METADATA_SEGMENT_FULL_GENERATION, String.valueOf(indexEntry.getFullGeneration())); |
| map.put(METADATA_SEGMENT_COMPACTED, String.valueOf(indexEntry.isCompacted())); |
| return map; |
| } |
| |
| public static RemoteSegmentArchiveEntry toIndexEntry(Map<String, String> metadata, int length) { |
| UUID uuid = UUID.fromString(metadata.get(METADATA_SEGMENT_UUID)); |
| long msb = uuid.getMostSignificantBits(); |
| long lsb = uuid.getLeastSignificantBits(); |
| int position = Integer.parseInt(metadata.get(METADATA_SEGMENT_POSITION)); |
| int generation = Integer.parseInt(metadata.get(METADATA_SEGMENT_GENERATION)); |
| int fullGeneration = Integer.parseInt(metadata.get(METADATA_SEGMENT_FULL_GENERATION)); |
| boolean compacted = Boolean.parseBoolean(metadata.get(METADATA_SEGMENT_COMPACTED)); |
| return new RemoteSegmentArchiveEntry(msb, lsb, position, length, generation, fullGeneration, compacted); |
| } |
| |
| public static boolean isSegment(Map<String, String> metadata) { |
| return metadata != null && TYPE_SEGMENT.equals(metadata.get(METADATA_TYPE)); |
| } |
| |
| } |
| |