package nl.geozet.openls.parser;
   
   import java.io.IOException;
   import java.io.StringReader;
   import java.util.Stack;
   
   import javax.xml.parsers.ParserConfigurationException;
   import javax.xml.parsers.SAXParser;
   import javax.xml.parsers.SAXParserFactory;
  
  import nl.geozet.openls.databinding.openls.Address;
  import nl.geozet.openls.databinding.openls.Building;
  import nl.geozet.openls.databinding.openls.GeocodeRequest;
  import nl.geozet.openls.databinding.openls.Place;
  import nl.geozet.openls.databinding.openls.PostalCode;
  import nl.geozet.openls.databinding.openls.Street;
  import nl.geozet.openls.databinding.openls.StreetAddress;
  
  import org.apache.log4j.Logger;
  import org.xml.sax.Attributes;
  import org.xml.sax.InputSource;
  import org.xml.sax.SAXException;
  import org.xml.sax.helpers.DefaultHandler;
  
  /**
   * The Class OpenLSRequestParser.
   */
  public class OpenLSRequestParser extends DefaultHandler {
  
      /** The Constant LOGGER. */
      private static final Logger LOGGER = Logger
              .getLogger(OpenLSRequestParser.class);
  
      /** The parser. */
      private SAXParser parser;
  
      /** The obj stack. */
      private final Stack objStack = new Stack();
  
      /** The e val buf. */
      private StringBuffer eValBuf;
  
      /**
       * Instantiates a new open ls request parser.
       */
      public OpenLSRequestParser() {
          SAXParserFactory factory = SAXParserFactory.newInstance();
          factory.setValidating(false);
          try {
              parser = factory.newSAXParser();
          } catch (ParserConfigurationException e) {
              LOGGER.fatal("Configureren van de saxparser is mislukt: ", e);
          } catch (SAXException e) {
              LOGGER.error("Maken van de saxparser is mislukt: ", e);
          }
      }
  
      /**
       * Parses the open ls request.
       * 
       * @param data
       *            the data
       * @return the geocode request
       */
      public GeocodeRequest parseOpenLSRequest(String data) {
          objStack.clear();
          try {
              parser.parse(new InputSource(new StringReader(data)), this);
          } catch (SAXException e) {
              LOGGER.error("OpenLS response XML verwerken is mislukt: " + data
                      + ": ", e);
          } catch (IOException e) {
              LOGGER.error("OpenLS response XML lezen is mislukt: ", e);
          }
          return getGeocodeRequest();
      }
  
      /*
       * (non-Javadoc)
       * 
       * @see org.xml.sax.helpers.DefaultHandler#startElement(java.lang.String,
       * java.lang.String, java.lang.String, org.xml.sax.Attributes)
       */
      @Override
      public void startElement(String uri, String localName, String qName,
              Attributes attributes) {
          eValBuf = new StringBuffer();
          String[] nsName = qName.split(":");
          String eName;
          if (nsName.length > 1) {
              eName = nsName[1];
          } else {
              eName = nsName[0];
          }
          if (eName.equalsIgnoreCase("GeocodeRequest")) {
              GeocodeRequestls/GeocodeRequest.html#GeocodeRequest">GeocodeRequest obj = new GeocodeRequest();
              objStack.push(obj);
          } else if (eName.equalsIgnoreCase("Address")) {
              Addressng/openls/Address.html#Address">Address obj = new Address();
             objStack.push(obj);
             for (int i = 0; i < attributes.getLength(); i++) {
                 String key = attributes.getQName(i);
                 String value = attributes.getValue(i);
                 if (key.equalsIgnoreCase("countryCode")) {
                     obj.setCountryCode(value);
                 }
             }
         } else if (eName.equalsIgnoreCase("StreetAddress")) {
             StreetAddressnls/StreetAddress.html#StreetAddress">StreetAddress obj = new StreetAddress();
             objStack.push(obj);
         } else if (eName.equalsIgnoreCase("Building")) {
             Buildingg/openls/Building.html#Building">Building obj = new Building();
             objStack.push(obj);
             for (int i = 0; i < attributes.getLength(); i++) {
                 String key = attributes.getQName(i);
                 String value = attributes.getValue(i);
                 if (key.equalsIgnoreCase("number")) {
                     obj.setNumber(value);
                 }
             }
         } else if (eName.equalsIgnoreCase("Street")) {
             Streeting/openls/Street.html#Street">Street obj = new Street();
             objStack.push(obj);
         } else if (eName.equalsIgnoreCase("Place")) {
             Placeding/openls/Place.html#Place">Place obj = new Place();
             objStack.push(obj);
             for (int i = 0; i < attributes.getLength(); i++) {
                 String key = attributes.getQName(i);
                 String value = attributes.getValue(i);
                 if (key.equalsIgnoreCase("type")) {
                     obj.setType(value);
                 }
             }
         } else if (eName.equalsIgnoreCase("PostalCode")) {
             PostalCodeopenls/PostalCode.html#PostalCode">PostalCode obj = new PostalCode();
             objStack.push(obj);
         }
     }
 
     /*
      * (non-Javadoc)
      * 
      * @see org.xml.sax.helpers.DefaultHandler#endElement(java.lang.String,
      * java.lang.String, java.lang.String)
      */
     @Override
     public void endElement(String uri, String localName, String qName) {
         String[] nsName = qName.split(":");
         String eName;
         if (nsName.length > 1) {
             eName = nsName[1];
         } else {
             eName = nsName[0];
         }
         if (eName.equalsIgnoreCase("Address")) {
             Address="../../../../nl/geozet/openls/databinding/openls/Address.html#Address">Address obj = (Address) (objStack.pop());
             if (objStack.peek().getClass() == GeocodeRequest.class) {
                 ((GeocodeRequest) (objStack.peek())).addAddress(obj);
             }
         } else if (eName.equalsIgnoreCase("StreetAddress")) {
             StreetAddress./../../nl/geozet/openls/databinding/openls/StreetAddress.html#StreetAddress">StreetAddress obj = (StreetAddress) (objStack.pop());
             if (objStack.peek().getClass() == Address.class) {
                 ((Address) (objStack.peek())).setStreetAddress(obj);
             }
         } else if (eName.equalsIgnoreCase("Building")) {
             Building"../../../../nl/geozet/openls/databinding/openls/Building.html#Building">Building obj = (Building) (objStack.pop());
             if (objStack.peek().getClass() == StreetAddress.class) {
                 ((StreetAddress) (objStack.peek())).setBuilding(obj);
             }
         } else if (eName.equalsIgnoreCase("Street")) {
             Streetf="../../../../nl/geozet/openls/databinding/openls/Street.html#Street">Street obj = (Street) (objStack.pop());
             obj.setStreet(eValBuf.toString());
             if (objStack.peek().getClass() == StreetAddress.class) {
                 ((StreetAddress) (objStack.peek())).setStreet(obj);
             }
         } else if (eName.equalsIgnoreCase("Place")) {
             Placeef="../../../../nl/geozet/openls/databinding/openls/Place.html#Place">Place obj = (Place) (objStack.pop());
             obj.setPlace(eValBuf.toString());
             if (objStack.peek().getClass() == Address.class) {
                 ((Address) (objStack.peek())).addPlace(obj);
             }
         } else if (eName.equalsIgnoreCase("PostalCode")) {
             PostalCode./../../../nl/geozet/openls/databinding/openls/PostalCode.html#PostalCode">PostalCode obj = (PostalCode) (objStack.pop());
             obj.setPostalCode(eValBuf.toString());
             if (objStack.peek().getClass() == Address.class) {
                 ((Address) (objStack.peek())).setPostalCode(obj);
             }
         }
     }
 
     /*
      * (non-Javadoc)
      * 
      * @see org.xml.sax.helpers.DefaultHandler#characters(char[], int, int)
      */
     public void characters(char[] ch, int start, int length) {
         eValBuf.append(ch, start, length);
     }
 
     /**
      * Gets the geocode request.
      * 
      * @return the geocode request
      */
     public GeocodeRequest getGeocodeRequest() {
         GeocodeRequest geocodeRequest = null;
         if (objStack.firstElement() != null) {
             if (objStack.firstElement().getClass() == GeocodeRequest.class) {
                 geocodeRequest = (GeocodeRequest) objStack.firstElement();
             }
         }
         return geocodeRequest;
     }
 }