| /** |
| * 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.server.namenode; |
| |
| import java.util.List; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.fs.permission.PermissionStatus; |
| import org.apache.hadoop.hdfs.DFSUtil; |
| import org.apache.hadoop.hdfs.protocol.Block; |
| |
| /** |
| * An INode representing a symbolic link. |
| */ |
| @InterfaceAudience.Private |
| public class INodeSymlink extends INode { |
| private byte[] symlink; // The target URI |
| |
| INodeSymlink(String value, long modTime, long atime, |
| PermissionStatus permissions) { |
| super(permissions, modTime, atime); |
| assert value != null; |
| setLinkValue(value); |
| setModificationTimeForce(modTime); |
| setAccessTime(atime); |
| } |
| |
| public boolean isLink() { |
| return true; |
| } |
| |
| void setLinkValue(String value) { |
| this.symlink = DFSUtil.string2Bytes(value); |
| } |
| |
| public String getLinkValue() { |
| return DFSUtil.bytes2String(symlink); |
| } |
| |
| public byte[] getSymlink() { |
| return symlink; |
| } |
| |
| @Override |
| DirCounts spaceConsumedInTree(DirCounts counts) { |
| counts.nsCount += 1; |
| return counts; |
| } |
| |
| @Override |
| int collectSubtreeBlocksAndClear(List<Block> v) { |
| return 1; |
| } |
| |
| @Override |
| long[] computeContentSummary(long[] summary) { |
| summary[1]++; // Increment the file count |
| return summary; |
| } |
| |
| @Override |
| public boolean isDirectory() { |
| return false; |
| } |
| } |