/** Resets this to an empty file. */
public void reset() {
currentBuffer = null;
currentBufferIndex = -1;
bufferPosition = 0;
bufferStart = 0;
bufferLength = 0;
file.setLength(0);
}
private void setFileLength() {
long pointer = bufferStart + bufferPosition;
if (pointer > file.length) {
file.setLength(pointer);
}
}