jnr.posix.FileStat Java Examples

@SuppressWarnings("UseOfSystemOutOrSystemErr")
protected void reportSpaceUsed(final File dir, final String desc) {
  final File[] files = dir.listFiles();
  if (files == null) {
    return;
  }
  long bytes = 0;
  for (final File f : files) {
    if (f.isDirectory()) {
      throw new UnsupportedOperationException("impl created directory");
    }
    final FileStat stat = POSIX.stat(f.getAbsolutePath());
    bytes += stat.blocks() * S_BLKSIZE;
  }
  out.println("\nBytes\t" + desc + "\t" + bytes + "\t" + dir.getName());
}
 

public static List<JnrDirent> jnrReaddir(POSIX posix, Path path) throws IOException {
  List<JnrDirent> dirents = new ArrayList<>();
  try (DirectoryStream<Path> stream = Files.newDirectoryStream(path)) {
    for (Path file : stream) {
      FileStat stat = jnrStatNullable(posix, file.toString());
      dirents.add(new JnrDirent(file.getFileName().toString(), stat));
    }
  }
  return dirents;
}
 

public static FileStat jnrStatNullable(POSIX posix, String path) {
  try {
    return posix.stat(path);
  } catch (Exception e) {
    return null;
  }
}
 

private void putFile(Map<String, Object> file) {
  int mode = ((Number) file.get("mode")).intValue();
  long mtime = ((Number) file.get("mtime_ms")).longValue();
  Object name = file.get("name");
  if (!(name instanceof String)) {
    return; // ignore non-utf8 file names as they are likely corrupted
  }
  resetIfInterrupted(() -> {
    Update.Builder ub = Update
      .newBuilder()
      .setPath((String) name)
      .setDelete(!(boolean) file.get("exists"))
      .setModTime(mtime)
      .setDirectory(isFileStatType(mode, FileStat.S_IFDIR))
      .setExecutable(isExecutable(mode))
      .setLocal(true);
    readSymlinkTargetIfNeeded(ub, mode);
    setIgnoreStringIfNeeded(ub);
    clearModTimeIfADelete(ub);
    Update u = ub.build();
    if (log.isTraceEnabled()) {
      log.trace("Queueing: " + TextFormat.shortDebugString(u));
    }
    if (config != null && config.shouldDebug(ub.getPath())) {
      log.info("Queueing: " + TextFormat.shortDebugString(u));
    }
    queue.put(u);
  });
}
 

/** Creates a new jnr dirent with the given name */
public JnrDirent(String name, FileStat stat) {
  this.name = Preconditions.checkNotNull(name);
  this.stat = stat;
}
 

@Nullable
public FileStat getStat() {
  return stat;
}
 

public static long jnrGetInode(POSIX posix, String path) {
  FileStat fs = posix.lstat(path);
  return fs.ino();
}
 

private void readSymlinkTargetIfNeeded(Update.Builder ub, int mode) {
  if (isFileStatType(mode, FileStat.S_IFLNK)) {
    readSymlinkTarget(ub);
  }
}
 

private static boolean isFileStatType(int mode, int mask) {
  return (mode & FileStat.S_IFMT) == mask;
}
 

private static boolean isExecutable(int mode) {
  return (mode & FileStat.S_IXUGO) != 0;
}
 

public static void setWritable(Path absolutePath) {
  FileStat s = posix.stat(absolutePath.toFile().toString());
  posix.chmod(absolutePath.toFile().toString(), s.mode() | Integer.parseInt("0700", 8));
}
 

/** {@inheritDoc} */
@Override public int getFileSystemBlockSize(Path path) {
    FileStat stat = posix.stat(path.toString());
    return Math.toIntExact(stat.blockSize());
}
 

/** {@inheritDoc} */
@Override public int getFileSystemBlockSize(int fd) {
    FileStat stat = posix.fstat(fd);
    return Math.toIntExact(stat.blockSize());
}
 

/** {@inheritDoc} */
@Override public long getSparseFileSize(int fd) {
    FileStat stat = posix.fstat(fd);
    return stat.blocks() * 512;
}