Android Open Source - Sunshine Weather Contract

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License

The source code is released under:

Apache License

Java Source Code

package br.com.santhyago.udacity.sunshine.app.data;
/*from w  w  w  .  j a v a  2 s . co  m*/
import android.content.ContentUris;
import android.net.Uri;
import android.provider.BaseColumns;

/**
 * Created by san on 11/23/14.
 */
public class WeatherContract {
  // The "Content authority" is a name for the entire content provider, similar to the
  // relationship between a domain name and its website.  A convenient string to use for the
  // content authority is the package name for the app, which is guaranteed to be unique on the
  // device.
  public static final String CONTENT_AUTHORITY = "br.com.santhyago.udacity.sunshine.app";

  // Use CONTENT_AUTHORITY to create the base of all URI's which apps will use to contact
  // the content provider.
  public static final Uri BASE_CONTENT_URI = Uri.parse("content://" + CONTENT_AUTHORITY);

  // Possible paths (appended to base content URI for possible URI's)
  // For instance, content://com.example.android.sunshine.app/weather/ is a valid path for
  // looking at weather data. content://com.example.android.sunshine.app/givemeroot/ will fail,
  // as the ContentProvider hasn't been given any information on what to do with "givemeroot".
  // At least, let's hope not.  Don't be that dev, reader.  Don't be that dev.

  public static final String PATH_WEATHER = "weather";
  public static final String PATH_LOCATION = "location";

  /* Inner class that defines the table contents of the weather table */
  public static final class WeatherEntry implements BaseColumns {
    public static final Uri CONTENT_URI =
        BASE_CONTENT_URI.buildUpon().appendPath(PATH_WEATHER).build();

    public static final String CONTENT_TYPE =
        "vnd.android.cursor.dir/" + CONTENT_AUTHORITY + "/" + PATH_WEATHER;
    public static final String CONTENT_ITEM_TYPE =
        "vnd.android.cursor.item/" + CONTENT_AUTHORITY + "/" + PATH_WEATHER;

    public static final String TABLE_NAME = "weather";

    // Column with the foreign key into the location table.
    public static final String COLUMN_LOC_KEY = "location_id";
    // Date, stored as Text with format yyyy-MM-dd
    public static final String COLUMN_DATETEXT = "date";
    // Weather id as returned by API, to identify the icon to be used
    public static final String COLUMN_WEATHER_ID = "weather_id";

    // Short description and long description of the weather, as provided by API.
    // e.g "clear" vs "sky is clear".
    public static final String COLUMN_SHORT_DESC = "short_desc";

    // Min and max temperatures for the day (stored as floats)
    public static final String COLUMN_MIN_TEMP = "min";
    public static final String COLUMN_MAX_TEMP = "max";

    // Humidity is stored as a float representing percentage
    public static final String COLUMN_HUMIDITY = "humidity";

    // Humidity is stored as a float representing percentage
    public static final String COLUMN_PRESSURE = "pressure";

    // Windspeed is stored as a float representing windspeed  mph
    public static final String COLUMN_WIND_SPEED = "wind";

    // Degrees are meteorological degrees (e.g, 0 is north, 180 is south).  Stored as floats.
    public static final String COLUMN_DEGREES = "degrees";

    public static Uri buildWeatherUri(long id) {
      return ContentUris.withAppendedId(CONTENT_URI, id);
    }

    public static Uri buildWeatherLocation(String locationSetting) {
      return CONTENT_URI.buildUpon().appendPath(locationSetting).build();
    }

    public static Uri buildWeatherLocationWithStartDate(
        String locationSetting, String startDate) {
      return CONTENT_URI.buildUpon().appendPath(locationSetting)
          .appendQueryParameter(COLUMN_DATETEXT, startDate).build();
    }

    public static Uri buildWeatherLocationWithDate(String locationSetting, String date) {
      return CONTENT_URI.buildUpon().appendPath(locationSetting).appendPath(date).build();
    }

    public static String getLocationSettingFromUri(Uri uri) {
      return uri.getPathSegments().get(1);
    }

    public static String getDateFromUri(Uri uri) {
      return uri.getPathSegments().get(2);
    }

    public static String getStartDateFromUri(Uri uri) {
      return uri.getQueryParameter(COLUMN_DATETEXT);
    }
  }

  /* Inner class that defines the table contents of the location table */
  public static final class LocationEntry implements BaseColumns {
    public static final Uri CONTENT_URI =
        BASE_CONTENT_URI.buildUpon().appendPath(PATH_LOCATION).build();

    public static final String CONTENT_TYPE =
        "vnd.android.cursor.dir/" + CONTENT_AUTHORITY + "/" + PATH_LOCATION;
    public static final String CONTENT_ITEM_TYPE =
        "vnd.android.cursor.item/" + CONTENT_AUTHORITY + "/" + PATH_LOCATION;

    // Table name
    public static final String TABLE_NAME = "location";

    // The location setting string is what will be sent to openweathermap
    // as the location query.
    public static final String COLUMN_LOCATION_SETTING = "location_setting";

    // Human readable location string, provided by the API.  Because for styling,
    // "Mountain View" is more recognizable than 94043.
    public static final String COLUMN_CITY_NAME = "city_name";

    // In order to uniquely pinpoint the location on the map when we launch the
    // map intent, we store the latitude and longitude as returned by openweathermap.
    public static final String COLUMN_COORD_LAT = "coord_lat";
    public static final String COLUMN_COORD_LONG = "coord_long";

    public static Uri buildLocationUri (Long id) {
      return ContentUris.withAppendedId(CONTENT_URI, id);
    }
  }
}

Java Source Code List

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