private int computeLength(IIOMetadataNode root) {
NodeList list = root.getChildNodes();
int length = 0;
for (int i = 0; i < list.getLength(); i++) {
IIOMetadataNode node = (IIOMetadataNode) list.item(i);
String name = node.getNodeName();
if (format.isLeaf(name))
length += new Integer((String) Box.getAttribute(node, "Length")).intValue();
else length += computeLength(node);
}
return length + (root.getNodeName().startsWith("JPEG2000") ? 8 : 0);
}
private void writeSuperBox(IIOMetadataNode node) throws IOException {
NodeList list = node.getChildNodes();
String name = node.getNodeName();
if (name.startsWith("JPEG2000")) {
stream.writeInt(computeLength(node));
stream.writeInt(Box.getTypeInt((String) Box.getTypeByName(name)));
otherLength += 8;
}
for (int i = 0; i < list.getLength(); i++) {
IIOMetadataNode child = (IIOMetadataNode) list.item(i);
name = child.getNodeName();
if (name.startsWith("JPEG2000") && format.isLeaf(name)) writeBox(child);
else writeSuperBox(child);
}
}