#!/usr/bin/python -u
import libxml2

class federated_visualization:
    class callback:
	def __init__(self):
	    self.result = { };
	    self.row = { };
	    self.node_fields = set(["name", "x", "y", "type"]);
	    self.float_fields = set(["x", "y"]);
	    self.last_chars = "";
	pass

	def startDocument(self):
	    pass

	def endDocument(self):
	    pass

	def startElement(self, tag, attrs):
	    if tag == "node": 
		self.row = {}
	    pass

	def endElement(self, tag):
	    if tag == "node":
		self.result[self.row["name"]] = self.row;
	    elif tag in self.node_fields:
		if tag in self.float_fields:
		    self.row[tag] = float(self.last_chars);
		else:
		    self.row[tag] = self.last_chars;
		pass
	    pass

	def characters(self, data):
	    self.last_chars = data;
	    pass

	def warning(self, msg):
	    print "Warning: %s!" %  msg
	    pass

	def error(self, msg):
	    print "Error: %s!" %  msg
	    pass

	def fatalError(self, msg):
	    global log
	    print "fatalError: %s:" % (msg)

    def __init__(self, file):
	self.handler = self.callback()
	self.result = { };
	libxml2.SAXParseFile(self.handler, file, 0);
	self.result = self.handler.result;
	libxml2.cleanupParser()
	pass
pass

if __name__ == "__main__":
    import sys;
    parse = federated_visualization(sys.argv[1]);
    print parse.result
pass