| /* |
| * 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.standby; |
| |
| import static org.mockito.Mockito.mock; |
| |
| import java.nio.ByteBuffer; |
| import java.util.UUID; |
| |
| import com.google.common.base.Charsets; |
| import com.google.common.hash.Hashing; |
| import io.netty.buffer.ByteBuf; |
| import io.netty.buffer.Unpooled; |
| import org.apache.jackrabbit.oak.segment.RecordId; |
| import org.apache.jackrabbit.oak.segment.Segment; |
| import org.apache.jackrabbit.oak.segment.SegmentId; |
| import org.apache.jackrabbit.oak.segment.SegmentIdProvider; |
| import org.apache.jackrabbit.oak.segment.SegmentReader; |
| import org.apache.jackrabbit.oak.segment.SegmentStore; |
| |
| public class StandbyTestUtils { |
| |
| private StandbyTestUtils() { |
| // Prevent instantiation. |
| } |
| |
| public static RecordId mockRecordId(long msb, long lsb, int offset) { |
| return new RecordId(new SegmentId(mock(SegmentStore.class), msb, lsb), offset); |
| } |
| |
| public static Segment mockSegment(UUID uuid, byte[] buffer) { |
| SegmentStore store = mock(SegmentStore.class); |
| SegmentIdProvider idProvider = mock(SegmentIdProvider.class); |
| SegmentReader reader = mock(SegmentReader.class); |
| long msb = uuid.getMostSignificantBits(); |
| long lsb = uuid.getLeastSignificantBits(); |
| SegmentId id = new SegmentId(store, msb, lsb); |
| ByteBuffer data = ByteBuffer.wrap(buffer); |
| return new Segment(idProvider, reader, id, data); |
| } |
| |
| public static long hash(byte[] data) { |
| return Hashing.murmur3_32().newHasher().putBytes(data).hash().padToLong(); |
| } |
| |
| public static long hash(byte mask, long blobLength, byte[] data) { |
| return Hashing.murmur3_32().newHasher().putByte(mask).putLong(blobLength).putBytes(data).hash().padToLong(); |
| } |
| |
| public static byte createMask(int currentChunk, int totalChunks) { |
| byte mask = 0; |
| if (currentChunk == 1) { |
| mask = (byte) (mask | (1 << 0)); |
| } |
| |
| if (currentChunk == totalChunks) { |
| mask = (byte) (mask | (1 << 1)); |
| } |
| |
| return mask; |
| } |
| |
| public static ByteBuf createBlobChunkBuffer(byte header, long blobLength, String blobId, byte[] data, byte mask) { |
| byte[] blobIdBytes = blobId.getBytes(Charsets.UTF_8); |
| |
| ByteBuf buf = Unpooled.buffer(); |
| buf.writeInt(1 + 1 + 8 + 4 + blobIdBytes.length + 8 + data.length); |
| buf.writeByte(header); |
| buf.writeByte(mask); |
| buf.writeLong(blobLength); |
| buf.writeInt(blobIdBytes.length); |
| buf.writeBytes(blobIdBytes); |
| buf.writeLong(hash(mask, blobLength, data)); |
| buf.writeBytes(data); |
| |
| return buf; |
| } |
| |
| } |