/**
* Example constructor shows how to create and start an XML parser.
*
* @param db_path Path to the XML file to be parsed.
*/
public GraphDB(String db_path) {
nodeMap = new HashMap<>();
locations = new Trie();
try {
File inputFile = new File(db_path);
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser saxParser = factory.newSAXParser();
// we pass this to the MapDBHandler, all the state records can be taken care at MapDBHandler
MapDBHandler maphandler = new MapDBHandler(this);
saxParser.parse(inputFile, maphandler);
} catch (ParserConfigurationException | SAXException | IOException e) {
e.printStackTrace();
}
clean();
}
