Method seek

src/org/albite/io/RandomReadingFile.java:107–141

Seeks to the specified position @param position @throws IllegalArgumentException if the position argument is wrong, i.e.: position < 0 or RandomReadingFile#length() <= position @throws IOException if an IOException occurred

(final int position)

     * @throws IOException if an IOException occurred
     */
    public final void seek(final int position) throws IOException {

        if (position == pointer) {
            return;
        }

        if (position < 0 || position >= length()) {
            throw new IllegalArgumentException(
                    "Trying to seek outside file's contents");
        }

        final int pos;

        if (position < pointer) {
            /*
             * Must go back, i.e. it's necessary to reopen the input stream
             */

            /*
             * Close input before reopening it
             */
            if (in != null) {
                in.close();
            }

            in = file.openDataInputStream();
            pos = position;
        } else {
            pos = position - pointer;
        }

        skipBytes(pos);

        pointer = position;
    }

    public final long skip(long n) throws IOException {
        return skipBytes((int) n);