public long length() {
try {
return image.length();
} catch (IOException e) {
return -1L;
}
}
public int write(byte[] data, int offset, int length) throws IOException {
image.write(data, offset, length);
return length;
}
public void seek(long offset) throws IOException {
image.seek(offset);
}
public void close() throws IOException {
image.close();
}
public int read(byte[] data, int offset, int length) throws IOException {
return image.read(data, offset, length);
}
public static FileLock lock_file(String path) throws IOException, FileNotFoundException {
RandomAccessFile file = new RandomAccessFile(path, "rw");
FileChannel fileChannel = file.getChannel();
return fileChannel.tryLock();
}