示例#1
0
 private static void delete(FileObject file, boolean recursive) throws FileSystemException {
   if (file.exists()) {
     if (file.getType() == FileType.FILE) {
       file.delete();
     } else if (file.getType() == FileType.FOLDER) {
       if (file.getChildren().length == 0) {
         file.delete();
       } else if (recursive) {
         file.delete();
       }
     }
   }
 }
示例#2
0
  /**
   * Utility function to extract information about files on the user's file systems.
   *
   * @param context current call Context
   * @param paths the list of files for which to return information
   * @return list column-oriented table of file information
   * @throws FileSystemException
   */
  @Internal("file.info")
  public static ListVector fileInfo(@Current Context context, StringVector paths)
      throws FileSystemException {

    DoubleArrayVector.Builder size = new DoubleArrayVector.Builder();
    LogicalArrayVector.Builder isdir = new LogicalArrayVector.Builder();
    IntArrayVector.Builder mode =
        (IntArrayVector.Builder)
            new IntArrayVector.Builder()
                .setAttribute(Symbols.CLASS, StringVector.valueOf("octmode"));
    DoubleArrayVector.Builder mtime = new DoubleArrayVector.Builder();
    StringVector.Builder exe = new StringVector.Builder();

    for (String path : paths) {
      if (StringVector.isNA(path)) {
        throw new EvalException("invalid filename argument");
      }
      FileObject file = context.resolveFile(path);
      if (file.exists()) {
        if (file.getType() == FileType.FILE) {
          size.add((int) file.getContent().getSize());
        } else {
          size.add(0);
        }
        isdir.add(file.getType() == FileType.FOLDER);
        mode.add(mode(file));
        try {
          mtime.add(file.getContent().getLastModifiedTime());
        } catch (Exception e) {
          mtime.add(0);
        }
        exe.add(file.getName().getBaseName().endsWith(".exe") ? "yes" : "no");
      } else {
        size.addNA();
        isdir.addNA();
        mode.addNA();
        mtime.addNA();
        exe.addNA();
      }
    }

    return ListVector.newNamedBuilder()
        .add("size", size)
        .add("isdir", isdir)
        .add("mode", mode)
        .add("mtime", mtime)
        .add("ctime", mtime)
        .add("atime", mtime)
        .add("exe", exe)
        .build();
  }
示例#3
0
  @Invisible
  @Internal
  public static String setwd(@Current Context context, String workingDirectoryName)
      throws FileSystemException {
    FileObject newWorkingDirectory = context.resolveFile(workingDirectoryName);
    if (!newWorkingDirectory.exists() || newWorkingDirectory.getType() != FileType.FOLDER) {
      throw new EvalException("cannot change working directory");
    }

    String previous = context.getSession().getWorkingDirectory().getName().getURI();

    context.getSession().setWorkingDirectory(newWorkingDirectory);
    return previous;
  }
示例#4
0
  /**
   * Gets the type or storage mode of an object.
   *
   * @return unix-style file mode integer
   */
  private static int mode(FileObject file) throws FileSystemException {
    int access = 0;
    if (file.isReadable()) {
      access += 4;
    }

    if (file.isWriteable()) {
      access += 2;
    }
    if (file.getType() == FileType.FOLDER) {
      access += 1;
    }
    // i know this is braindead but i can't be bothered
    // to do octal math at the moment
    String digit = Integer.toString(access);
    String octalString = digit + digit + digit;

    return Integer.parseInt(octalString, 8);
  }