/**
* Parses the FileChannel, in the range [start, end) and prints the elements found
*
* <p>Elements are printed, indented by "level" number of spaces. If an element is a container,
* then its contents will be, recursively, printed, with a greater indentation.
*
* @param fc
* @param level
* @param start
* @param end
* @throws IOException
*/
private void print(FileChannel fc, int level, long start, long end) throws IOException {
fc.position(start);
if (end <= 0) {
end = start + fc.size();
System.out.println("Setting END to " + end);
}
while (end - fc.position() > 8) {
long begin = fc.position();
ByteBuffer bb = ByteBuffer.allocate(8);
fc.read(bb);
bb.rewind();
long size = IsoTypeReader.readUInt32(bb);
String type = IsoTypeReader.read4cc(bb);
long fin = begin + size;
// indent by the required number of spaces
for (int i = 0; i < level; i++) {
System.out.print(" ");
}
System.out.println(type + "@" + (begin) + " size: " + size);
if (containers.contains(type)) {
print(fc, level + 1, begin + 8, fin);
if (fc.position() != fin) {
System.out.println("End of container contents at " + fc.position());
System.out.println(" FIN = " + fin);
}
} else {
}
fc.position(fin);
}
}
