import java.io.IOException;
import java.util.Hashtable;
import org.apache.xerces.parsers.*;
import org.w3c.dom.*;
import org.xml.sax.SAXException;
 
/**
 *
 * @author Daniel
 */
public class XMLParser {
    //Variables.
    private String filePath;
    private Hashtable<String, String> configValues;
 
    //Objects to manipulate the XML file.
    private DOMParser oParser;
    private Document oDocument;
    private Element oElement;
 
 
    //Returns any request that is in the
    //XML document.
    public String getValue(String key){
        return configValues.get(key);
    }
 
    //Loads all the dbParams of the XML Document.
    private void loadConfigValues(){
        NodeList config = oDocument.getElementsByTagName("dbParam");
        for(int i=0; i < config.getLength(); i++){
            oElement  = (Element)config.item(i);
            configValues.put(oElement.getAttribute("name"),oElement.getAttribute("value"));
        }
    }
 
    //Loads the parser and the document.
    public XMLParser(String filePath)throws IOException, SAXException{
        setFilePath(filePath);
        initXML();
        initConfigValues();
    }
    private void initXML()throws IOException, SAXException{
        oParser = new DOMParser();
        oParser.parse(getFilePath());
        initDocument();
    }
    private void initDocument(){
        oDocument = oParser.getDocument();
    }
    private void initConfigValues(){
        configValues = new Hashtable<String, String>();
        loadConfigValues();
    }
 
    //Get and Set of the filePath
    private void setFilePath(String file){
        this.filePath = file;
    }
    private String getFilePath(){
        return filePath;
    }
}