Android Open Source - MWM-for-Android-Gen1 Google Weather Handler

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License

The source code is released under:

Apache License

Java Source Code

package org.anddev.android.weatherforecast.weather;
/*  ww w .j av a 2 s .c  o  m*/
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

/**
 * SAXHandler capable of extracting information out of the xml-data returned by
 * the Google Weather API.
 */
public class GoogleWeatherHandler extends DefaultHandler {

  // ===========================================================
  // Fields
  // ===========================================================
  
  @SuppressWarnings("unused")
  private String city = "";

  private WeatherSet myWeatherSet = null;
  @SuppressWarnings("unused")
  private boolean in_forecast_information = false;
  private boolean in_current_conditions = false;
  private boolean in_forecast_conditions = false;

  private boolean usingSITemperature = false; // false means Fahrenheit

  // ===========================================================
  // Constructors
  // ===========================================================

  // ===========================================================
  // Getter & Setter
  // ===========================================================

  public WeatherSet getWeatherSet() {
    return this.myWeatherSet;
  }

  // ===========================================================
  // Methods
  // ===========================================================
  @Override
  public void startDocument() throws SAXException {
    this.myWeatherSet = new WeatherSet();
  }

  @Override
  public void endDocument() throws SAXException {
    // Nothing
  }

  @Override
  public void startElement(String namespaceURI, String localName, String qName, Attributes atts) throws SAXException {
    // 'Outer' Tags
    if (localName.equals("forecast_information")) {
      this.in_forecast_information = true;
    } else if (localName.equals("current_conditions")) {
      this.myWeatherSet.setWeatherCurrentCondition(new WeatherCurrentCondition());
      this.in_current_conditions = true;
    } else if (localName.equals("forecast_conditions")) {
      this.myWeatherSet.getWeatherForecastConditions().add(new WeatherForecastCondition());
      this.in_forecast_conditions = true;
    } else {
      String dataAttribute = atts.getValue("data");
      // 'Inner' Tags of "<forecast_information>"
      if (localName.equals("city")) {
        this.city = dataAttribute;
        //Log.d("ow", "city detected");
      } else if (localName.equals("postal_code")) {
      } else if (localName.equals("latitude_e6")) {
        /* One could use this to convert city-name to Lat/Long. */
      } else if (localName.equals("longitude_e6")) {
        /* One could use this to convert city-name to Lat/Long. */
      } else if (localName.equals("forecast_date")) {
      } else if (localName.equals("current_date_time")) {
      } else if (localName.equals("unit_system")) {
        if (dataAttribute.equals("SI"))
          this.usingSITemperature = true;
      }
      // SHARED(!) 'Inner' Tags within "<current_conditions>" AND
      // "<forecast_conditions>"
      else if (localName.equals("day_of_week")) {
        if (this.in_current_conditions) {
          this.myWeatherSet.getWeatherCurrentCondition().setDayofWeek(dataAttribute);
        } else if (this.in_forecast_conditions) {
          this.myWeatherSet.getLastWeatherForecastCondition().setDayofWeek(dataAttribute);
        }
      } else if (localName.equals("icon")) {
        if (this.in_current_conditions) {
          this.myWeatherSet.getWeatherCurrentCondition().setIconURL(
              dataAttribute);
        } else if (this.in_forecast_conditions) {
          this.myWeatherSet.getLastWeatherForecastCondition()
              .setIconURL(dataAttribute);
        }
      } else if (localName.equals("condition")) {
        if (this.in_current_conditions) {
          this.myWeatherSet.getWeatherCurrentCondition()
              .setCondition(dataAttribute);
        } else if (this.in_forecast_conditions) {
          this.myWeatherSet.getLastWeatherForecastCondition()
              .setCondition(dataAttribute);
        }
      }
      // 'Inner' Tags within "<current_conditions>"
      else if (localName.equals("temp_f")) {
        this.myWeatherSet.getWeatherCurrentCondition()
            .setTempFahrenheit(Integer.parseInt(dataAttribute));
      } else if (localName.equals("temp_c")) {
        this.myWeatherSet.getWeatherCurrentCondition().setTempCelcius(
            Integer.parseInt(dataAttribute));
      } else if (localName.equals("humidity")) {
        this.myWeatherSet.getWeatherCurrentCondition().setHumidity(
            dataAttribute);
      } else if (localName.equals("wind_condition")) {
        this.myWeatherSet.getWeatherCurrentCondition()
            .setWindCondition(dataAttribute);
      }
      // 'Inner' Tags within "<forecast_conditions>"
      else if (localName.equals("low")) {
        int temp = Integer.parseInt(dataAttribute);
        if (this.usingSITemperature) {
          this.myWeatherSet.getLastWeatherForecastCondition()
              .setTempMinCelsius(temp);
        } else {
          this.myWeatherSet.getLastWeatherForecastCondition()
              .setTempMinCelsius(
                  WeatherUtils.fahrenheitToCelsius(temp));
        }
      } else if (localName.equals("high")) {
        int temp = Integer.parseInt(dataAttribute);
        if (this.usingSITemperature) {
          this.myWeatherSet.getLastWeatherForecastCondition()
              .setTempMaxCelsius(temp);
        } else {
          this.myWeatherSet.getLastWeatherForecastCondition()
              .setTempMaxCelsius(
                  WeatherUtils.fahrenheitToCelsius(temp));
        }
      }
    }
  }

  @Override
  public void endElement(String namespaceURI, String localName, String qName)
      throws SAXException {
    if (localName.equals("forecast_information")) {
      this.in_forecast_information = false;
    } else if (localName.equals("current_conditions")) {
      this.in_current_conditions = false;
    } else if (localName.equals("forecast_conditions")) {
      this.in_forecast_conditions = false;
    }
  }

  @Override
  public void characters(char ch[], int start, int length) {
    /*
     * Would be called on the following structure: <element>characters</element>
     */
  }
}

Java Source Code List

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