private ORASSNode createORASSNode (String nodeName, String originalName){
		if(!nodes.containsKey(nodeName)){
			ORASSNode node = new ORASSNode(nodeName, originalName);
			nodes.put(nodeName, node);
			//logger.info("created node : " + nodeName);
		}
		ORASSNode node = nodes.get(nodeName);
		return node;
	}