コード例 #1
0
ファイル: GUICommands.java プロジェクト: JosuaKrause/basex
    @Override
    public void execute(final GUI gui) {
      final DialogExport dialog = new DialogExport(gui);
      if (!dialog.ok()) return;

      final IOFile root = new IOFile(dialog.path());

      // check if existing files will be overwritten
      if (root.exists()) {
        IO file = null;
        boolean overwrite = false;
        final Data d = gui.context.data();
        final IntList il = d.resources.docs();
        final int is = il.size();
        for (int i = 0; i < is; i++) {
          file = root.merge(Token.string(d.text(il.get(i), true)));
          if (file.exists()) {
            if (overwrite) {
              // more than one file will be overwritten; check remaining tests
              file = null;
              break;
            }
            overwrite = true;
          }
        }
        if (overwrite) {
          // show message for overwriting files or directories
          final String msg = file == null ? FILES_REPLACE_X : FILE_EXISTS_X;
          if (file == null) file = root;
          if (!BaseXDialog.confirm(gui, Util.info(msg, file))) return;
        }
      }
      DialogProgress.execute(gui, new Export(root.path()));
    }
コード例 #2
0
ファイル: DiskData.java プロジェクト: LukasK/basex
 @Override
 public void startUpdate(final MainOptions opts) throws IOException {
   if (!table.lock(true)) throw new BaseXException(Text.DB_PINNED_X, meta.name);
   if (opts.get(MainOptions.AUTOFLUSH)) {
     final IOFile uf = meta.updateFile();
     if (uf.exists()) throw new BaseXException(Text.DB_UPDATED_X, meta.name);
     if (!uf.touch()) throw Util.notExpected("%: could not create lock file.", meta.name);
   }
 }
コード例 #3
0
  /**
   * Checks if the table of the specified database is locked.
   *
   * @param db name of database
   * @param ctx database context
   * @return result of check
   */
  public static boolean locked(final String db, final Context ctx) {
    final IOFile table = MetaData.file(ctx.globalopts.dbpath(db), DATATBL);
    if (!table.exists()) return false;

    try (final RandomAccessFile file = new RandomAccessFile(table.file(), "rw")) {
      return file.getChannel().tryLock() == null;
    } catch (final ClosedChannelException ex) {
      return false;
    } catch (final OverlappingFileLockException | IOException ex) {
      return true;
    }
  }
コード例 #4
0
ファイル: DiskData.java プロジェクト: LukasK/basex
  @Override
  public synchronized void finishUpdate(final MainOptions opts) {
    // remove updating file
    final boolean auto = opts.get(MainOptions.AUTOFLUSH);
    if (auto) {
      final IOFile uf = meta.updateFile();
      if (!uf.exists()) throw Util.notExpected("%: lock file does not exist.", meta.name);
      if (!uf.delete()) throw Util.notExpected("%: could not delete lock file.", meta.name);
    }

    // db:optimize(..., true) will close the database before this function is called
    if (!closed) {
      flush(auto);
      if (!table.lock(false)) throw Util.notExpected("Database '%': could not unlock.", meta.name);
    }
  }
コード例 #5
0
ファイル: Retrieve.java プロジェクト: ngrstad/basex
  @Override
  protected boolean run() throws IOException {
    final String path = MetaData.normPath(args[0]);
    if (path == null) return error(NAME_INVALID_X, args[0]);

    final IOFile bin = context.data().meta.binary(path);
    if (bin == null || !bin.exists() || bin.isDir()) return error(RES_NOT_FOUND_X, path);

    try {
      final BufferInput bi = new BufferInput(bin);
      try {
        for (int b; (b = bi.read()) != -1; ) out.write(b);
      } finally {
        bi.close();
      }
      return info(QUERY_EXECUTED_X, perf);
    } catch (final IOException ex) {
      return error(FILE_NOT_STORED_X, ex);
    }
  }