Method readByteBlock

src/main/java/History/HistoryLoader.java:117–139

(long pos)

    }

    private void readByteBlock(long pos) {
        FileIO f = FileIO.createConnection(fileName);
        if (current_block == null) {
            current_block = new char[BLOCK_SIZE];
        }
        try {
            InputStreamReader is = new InputStreamReader(f.openInputStream(), "UTF-8");
            is.skip(pos);
            is.read(current_block);
            is.close();

        } catch (IOException e) {
            try { f.close();
                  return;
                } catch (IOException ex2) {/*No messages*/}
        } catch (Exception e) { return; }

        try {
            f.close();
        } catch (Exception e) {/*No messages*/}

        current_index = pos;
    }

    private String getSubstr(int off, int length) {
        return new String(current_block).substring(off, off + length);