public Attr setAttributeNode(Attr newAttr) throws DOMException {
// Check if this attribute is already in use.
Element owner = newAttr.getOwnerElement();
if (owner != null) {
if (owner == this) { // Replacing an attribute node by itself has no effect
return null;
} else {
throw new DOMException(DOMException.INUSE_ATTRIBUTE_ERR, Messages.getString("imageio.8E"));
}
}
String name = newAttr.getName();
Attr oldAttr = getAttributeNode(name);
if (oldAttr != null) {
removeAttributeNode(oldAttr);
}
IIOMetadataAttr iioAttr;
if (newAttr instanceof IIOMetadataAttr) {
iioAttr = (IIOMetadataAttr) newAttr;
iioAttr.setOwnerElement(this);
} else {
iioAttr = new IIOMetadataAttr(name, newAttr.getValue(), this);
}
attrs.list.add(iioAttr);
return oldAttr;
}
