| /** |
| * 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.hadoop.hdfs.protocol; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| import org.apache.hadoop.fs.StorageType; |
| import org.apache.hadoop.hdfs.security.token.block.BlockTokenIdentifier; |
| import org.apache.hadoop.security.token.Token; |
| |
| import java.util.Arrays; |
| |
| /** |
| * {@link LocatedBlock} with striped block support. For a striped block, each |
| * datanode storage is associated with a block in the block group. We need to |
| * record the index (in the striped block group) for each of them. |
| */ |
| @InterfaceAudience.Private |
| @InterfaceStability.Evolving |
| public class LocatedStripedBlock extends LocatedBlock { |
| private static final int[] EMPTY_INDICES = {}; |
| private static final Token<BlockTokenIdentifier> EMPTY_TOKEN = new Token<>(); |
| |
| private int[] blockIndices; |
| private Token<BlockTokenIdentifier>[] blockTokens; |
| |
| public LocatedStripedBlock(ExtendedBlock b, DatanodeInfo[] locs, |
| String[] storageIDs, StorageType[] storageTypes, int[] indices, |
| long startOffset, boolean corrupt, DatanodeInfo[] cachedLocs) { |
| super(b, locs, storageIDs, storageTypes, startOffset, corrupt, cachedLocs); |
| |
| if (indices == null) { |
| this.blockIndices = EMPTY_INDICES; |
| } else { |
| this.blockIndices = new int[indices.length]; |
| System.arraycopy(indices, 0, blockIndices, 0, indices.length); |
| } |
| blockTokens = new Token[blockIndices.length]; |
| for (int i = 0; i < blockIndices.length; i++) { |
| blockTokens[i] = EMPTY_TOKEN; |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return getClass().getSimpleName() + "{" + getBlock() |
| + "; getBlockSize()=" + getBlockSize() |
| + "; corrupt=" + isCorrupt() |
| + "; offset=" + getStartOffset() |
| + "; locs=" + Arrays.asList(getLocations()) |
| + "; indices=" + Arrays.toString(blockIndices) |
| + "}"; |
| } |
| |
| public int[] getBlockIndices() { |
| return this.blockIndices; |
| } |
| |
| @Override |
| public boolean isStriped() { |
| return true; |
| } |
| |
| public Token<BlockTokenIdentifier>[] getBlockTokens() { |
| return blockTokens; |
| } |
| |
| public void setBlockTokens(Token<BlockTokenIdentifier>[] tokens) { |
| this.blockTokens = tokens; |
| } |
| } |