Examples of org.apache.hadoop.fs.permission.PermissionStatus

org.apache.hadoop.fs.permission.PermissionStatus
Store permission related information.


    // create an uncompressed image
    LOG.info("Create an uncompressed fsimage");
    NameNode namenode = new NameNode(conf);
    namenode.getNamesystem().mkdirs("/test",
        new PermissionStatus("hairong", null, FsPermission.getDefault()), true);
    NamenodeProtocols nnRpc = namenode.getRpcServer();
    assertTrue(nnRpc.getFileInfo("/test").isDir());
    nnRpc.setSafeMode(SafeModeAction.SAFEMODE_ENTER, false);
    nnRpc.saveNamespace();
    namenode.stop();

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        SnapshotDiffSection.FileDiff pbf = SnapshotDiffSection.FileDiff
            .parseDelimitedFrom(in);
        INodeFileAttributes copy = null;
        if (pbf.hasSnapshotCopy()) {
          INodeSection.INodeFile fileInPb = pbf.getSnapshotCopy();
          PermissionStatus permission = loadPermission(
              fileInPb.getPermission(), state.getStringTable());


          AclFeature acl = null;
          if (fileInPb.hasAcl()) {
            acl = new AclFeature(FSImageFormatPBINode.Loader.loadAclEntries(

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        if (useRoot) {
          copy = snapshot.getRoot();
        } else if (diffInPb.hasSnapshotCopy()) {
          INodeSection.INodeDirectory dirCopyInPb = diffInPb.getSnapshotCopy();
          final byte[] name = diffInPb.getName().toByteArray();
          PermissionStatus permission = loadPermission(
              dirCopyInPb.getPermission(), state.getStringTable());
          AclFeature acl = null;
          if (dirCopyInPb.hasAcl()) {
            acl = new AclFeature(FSImageFormatPBINode.Loader.loadAclEntries(
                dirCopyInPb.getAcl(), state.getStringTable()));

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    if(numBlocks > 0) {
      blk.readFields(in);
      blocks[i] = new BlockInfoUnderConstruction(
        blk, blockReplication, BlockUCState.UNDER_CONSTRUCTION, null);
    }
    PermissionStatus perm = PermissionStatus.read(in);
    String clientName = readString(in);
    String clientMachine = readString(in);


    // We previously stored locations for the last block, now we
    // just record that there are none

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            }
          }
        }
      }


      final PermissionStatus permissions = PermissionStatus.read(in);


      // return
      if (counter != null) {
        counter.increment();
      }
      final INodeFile file = new INodeFile(inodeId, localName, permissions,
          modificationTime, atime, blocks, replication, blockSize);
      if (underConstruction) {
        file.toUnderConstruction(clientName, clientMachine);
      }
        return fileDiffs == null ? file : new INodeFile(file, fileDiffs);
      } else if (numBlocks == -1) {
        //directory
      
      //read quotas
      final long nsQuota = in.readLong();
      long dsQuota = -1L;
      if (NameNodeLayoutVersion.supports(
          LayoutVersion.Feature.DISKSPACE_QUOTA, imgVersion)) {
        dsQuota = in.readLong();
      }


      //read snapshot info
      boolean snapshottable = false;
      boolean withSnapshot = false;
      if (NameNodeLayoutVersion.supports(
          LayoutVersion.Feature.SNAPSHOT, imgVersion)) {
        snapshottable = in.readBoolean();
        if (!snapshottable) {
          withSnapshot = in.readBoolean();
        }
      }


      final PermissionStatus permissions = PermissionStatus.read(in);


      //return
      if (counter != null) {
        counter.increment();
      }
      final INodeDirectory dir = new INodeDirectory(inodeId, localName,
          permissions, modificationTime);
      if (nsQuota >= 0 || dsQuota >= 0) {
        dir.addDirectoryWithQuotaFeature(nsQuota, dsQuota);
      }
      if (withSnapshot) {
        dir.addSnapshotFeature(null);
      }
      return snapshottable ? new INodeDirectorySnapshottable(dir) : dir;
    } else if (numBlocks == -2) {
      //symlink
      if (!FileSystem.areSymlinksEnabled()) {
        throw new IOException("Symlinks not supported - please remove symlink before upgrading to this version of HDFS");
      }


      final String symlink = Text.readString(in);
      final PermissionStatus permissions = PermissionStatus.read(in);
      if (counter != null) {
        counter.increment();
      }
      return new INodeSymlink(inodeId, localName, permissions,
          modificationTime, atime, symlink);

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          LayoutVersion.Feature.OPTIMIZE_SNAPSHOT_INODES, layoutVersion)) {
        return loadINodeWithLocalName(true, in, false).asFile();
      }
  
      final byte[] name = FSImageSerialization.readLocalName(in);
      final PermissionStatus permissions = PermissionStatus.read(in);
      final long modificationTime = in.readLong();
      final long accessTime = in.readLong();
  
      final short replication = namesystem.getBlockManager().adjustReplication(
          in.readShort());

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          LayoutVersion.Feature.OPTIMIZE_SNAPSHOT_INODES, layoutVersion)) {
        return loadINodeWithLocalName(true, in, false).asDirectory();
      }
  
      final byte[] name = FSImageSerialization.readLocalName(in);
      final PermissionStatus permissions = PermissionStatus.read(in);
      final long modificationTime = in.readLong();
      
      //read quotas
      final long nsQuota = in.readLong();
      final long dsQuota = in.readLong();

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   * @throws IOException if failed to serialize fileStatus to JSON.
   */
  String getAclStatus(String path) throws IOException {
    StringBuilder sb = new StringBuilder();
    List<AclEntry> aclEntryList = getAclEntryList(path);
    PermissionStatus p = getPermissionStatus(path);
    sb.append("{\"AclStatus\":{\"entries\":[");
    int i = 0;
    for (AclEntry aclEntry : aclEntryList) {
      if (i++ != 0) {
        sb.append(',');
      }
      sb.append('"');
      sb.append(aclEntry.toString());
      sb.append('"');
    }
    sb.append("],\"group\": \"");
    sb.append(p.getGroupName());
    sb.append("\",\"owner\": \"");
    sb.append(p.getUserName());
    sb.append("\",\"stickyBit\": ");
    sb.append(p.getPermission().getStickyBit());
    sb.append("}}\n");
    return sb.toString();
  }

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      (FsImageProto.INodeSection.INode inode, boolean printSuffix){
    Map<String, Object> map = Maps.newHashMap();
    switch (inode.getType()) {
      case FILE: {
        FsImageProto.INodeSection.INodeFile f = inode.getFile();
        PermissionStatus p = FSImageFormatPBINode.Loader.loadPermission(
            f.getPermission(), stringTable);
        map.put("accessTime", f.getAccessTime());
        map.put("blockSize", f.getPreferredBlockSize());
        map.put("group", p.getGroupName());
        map.put("length", getFileSize(f));
        map.put("modificationTime", f.getModificationTime());
        map.put("owner", p.getUserName());
        map.put("pathSuffix",
            printSuffix ? inode.getName().toStringUtf8() : "");
        map.put("permission", toString(p.getPermission()));
        map.put("replication", f.getReplication());
        map.put("type", inode.getType());
        map.put("fileId", inode.getId());
        map.put("childrenNum", 0);
        return map;
      }
      case DIRECTORY: {
        FsImageProto.INodeSection.INodeDirectory d = inode.getDirectory();
        PermissionStatus p = FSImageFormatPBINode.Loader.loadPermission(
            d.getPermission(), stringTable);
        map.put("accessTime", 0);
        map.put("blockSize", 0);
        map.put("group", p.getGroupName());
        map.put("length", 0);
        map.put("modificationTime", d.getModificationTime());
        map.put("owner", p.getUserName());
        map.put("pathSuffix",
            printSuffix ? inode.getName().toStringUtf8() : "");
        map.put("permission", toString(p.getPermission()));
        map.put("replication", 0);
        map.put("type", inode.getType());
        map.put("fileId", inode.getId());
        map.put("childrenNum", dirmap.containsKey(inode.getId()) ?
            dirmap.get(inode.getId()).length : 0);
        return map;
      }
      case SYMLINK: {
        FsImageProto.INodeSection.INodeSymlink d = inode.getSymlink();
        PermissionStatus p = FSImageFormatPBINode.Loader.loadPermission(
            d.getPermission(), stringTable);
        map.put("accessTime", d.getAccessTime());
        map.put("blockSize", 0);
        map.put("group", p.getGroupName());
        map.put("length", 0);
        map.put("modificationTime", d.getModificationTime());
        map.put("owner", p.getUserName());
        map.put("pathSuffix",
            printSuffix ? inode.getName().toStringUtf8() : "");
        map.put("permission", toString(p.getPermission()));
        map.put("replication", 0);
        map.put("type", inode.getType());
        map.put("symlink", d.getTarget().toStringUtf8());
        map.put("fileId", inode.getId());
        map.put("childrenNum", 0);

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    this.permission = that.permission;
  }


  @Override
  final PermissionStatus getPermissionStatus(int snapshotId) {
    return new PermissionStatus(getUserName(snapshotId), getGroupName(snapshotId),
        getFsPermission(snapshotId));
  }

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