git.gumartinm.name Git - JavaForFun/blob

   1 package de.example.exampletdd.fragment.overview;
   2
   3 import java.io.FileNotFoundException;
   4 import java.io.IOException;
   5 import java.net.MalformedURLException;
   6 import java.net.URISyntaxException;
   7 import java.net.URL;
   8 import java.text.DecimalFormat;
   9 import java.text.NumberFormat;
  10 import java.text.SimpleDateFormat;
  11 import java.util.ArrayList;
  12 import java.util.Calendar;
  13 import java.util.Date;
  14 import java.util.List;
  15 import java.util.Locale;
  16
  17 import org.apache.http.client.ClientProtocolException;
  18
  19 import android.app.DialogFragment;
  20 import android.app.ListFragment;
  21 import android.content.ComponentName;
  22 import android.content.Intent;
  23 import android.content.SharedPreferences;
  24 import android.graphics.Bitmap;
  25 import android.graphics.BitmapFactory;
  26 import android.net.http.AndroidHttpClient;
  27 import android.os.AsyncTask;
  28 import android.os.Bundle;
  29 import android.preference.PreferenceManager;
  30 import android.util.Log;
  31 import android.view.View;
  32 import android.widget.ListView;
  33
  34 import com.fasterxml.jackson.core.JsonParseException;
  35
  36 import de.example.exampletdd.R;
  37 import de.example.exampletdd.activityinterface.GetWeather;
  38 import de.example.exampletdd.fragment.ErrorDialogFragment;
  39 import de.example.exampletdd.fragment.ProgressDialogFragment;
  40 import de.example.exampletdd.fragment.specific.WeatherInformationSpecificDataFragment;
  41 import de.example.exampletdd.httpclient.CustomHTTPClient;
  42 import de.example.exampletdd.model.GeocodingData;
  43 import de.example.exampletdd.model.forecastweather.ForecastWeatherData;
  44 import de.example.exampletdd.parser.IJPOSWeatherParser;
  45 import de.example.exampletdd.parser.JPOSWeatherParser;
  46 import de.example.exampletdd.service.WeatherServiceParser;
  47 import de.example.exampletdd.service.WeatherServicePersistenceFile;
  48
  49 public class WeatherInformationOverviewFragment extends ListFragment implements GetWeather {
  50     private boolean mIsFahrenheit;
  51     private String mDayForecast;
  52     private WeatherServicePersistenceFile mWeatherServicePersistenceFile;
  53
  54     @Override
  55     public void onCreate(final Bundle savedInstanceState) {
  56         super.onCreate(savedInstanceState);
  57
  58         final SharedPreferences sharedPreferences = PreferenceManager
  59                 .getDefaultSharedPreferences(this.getActivity());
  60         final String keyPreference = this.getResources().getString(
  61                 R.string.weather_preferences_day_forecast_key);
  62         this.mDayForecast = sharedPreferences.getString(keyPreference, "");
  63
  64         this.mWeatherServicePersistenceFile = new WeatherServicePersistenceFile(this.getActivity());
  65         this.mWeatherServicePersistenceFile.removeForecastWeatherData();
  66     }
  67
  68     @Override
  69     public void onActivityCreated(final Bundle savedInstanceState) {
  70         super.onActivityCreated(savedInstanceState);
  71
  72         final ListView listWeatherView = this.getListView();
  73         listWeatherView.setChoiceMode(ListView.CHOICE_MODE_NONE);
  74
  75         if (savedInstanceState != null) {
  76             // Restore state
  77             final ForecastWeatherData forecastWeatherData = (ForecastWeatherData) savedInstanceState
  78                     .getSerializable("ForecastWeatherData");
  79
  80             if (forecastWeatherData != null) {
  81                 try {
  82                     this.mWeatherServicePersistenceFile
  83                     .storeForecastWeatherData(forecastWeatherData);
  84                 } catch (final IOException e) {
  85                     final DialogFragment newFragment = ErrorDialogFragment
  86                             .newInstance(R.string.error_dialog_generic_error);
  87                     newFragment.show(this.getFragmentManager(), "errorDialog");
  88                 }
  89             }
  90         }
  91
  92         this.setHasOptionsMenu(false);
  93
  94         final WeatherOverviewAdapter adapter = new WeatherOverviewAdapter(
  95                 this.getActivity(), R.layout.weather_main_entry_list);
  96
  97
  98         this.setEmptyText("Press download to receive weather information");
  99
 100         this.setListAdapter(adapter);
 101         this.setListShown(true);
 102         this.setListShownNoAnimation(true);
 103     }
 104
 105     @Override
 106     public void onListItemClick(final ListView l, final View v, final int position, final long id) {
 107         final WeatherInformationSpecificDataFragment fragment = (WeatherInformationSpecificDataFragment) this.getFragmentManager()
 108                 .findFragmentById(R.id.weather_specific_data__fragment);
 109         if (fragment == null) {
 110             // handset layout
 111             final Intent intent = new Intent("de.example.exampletdd.WEATHERINFO").
 112                     setComponent(new ComponentName("de.example.exampletdd",
 113                             "de.example.exampletdd.WeatherInformationSpecificDataActivity"));
 114             intent.putExtra("CHOSEN_DAY", (int) id);
 115             WeatherInformationOverviewFragment.this.getActivity().startActivity(intent);
 116         } else {
 117             // tablet layout
 118             fragment.getWeatherByDay((int) id);
 119         }
 120     }
 121
 122     @Override
 123     public void onSaveInstanceState(final Bundle savedInstanceState) {
 124
 125         // Save state
 126         final ForecastWeatherData forecastWeatherData = this.mWeatherServicePersistenceFile
 127                 .getForecastWeatherData();
 128
 129         if (forecastWeatherData != null) {
 130             savedInstanceState.putSerializable("ForecastWeatherData", forecastWeatherData);
 131         }
 132
 133         super.onSaveInstanceState(savedInstanceState);
 134     }
 135
 136     @Override
 137     public void getRemoteWeatherInformation() {
 138
 139         final GeocodingData geocodingData = this.mWeatherServicePersistenceFile.getGeocodingData();
 140
 141         if (geocodingData != null) {
 142             final IJPOSWeatherParser JPOSWeatherParser = new JPOSWeatherParser();
 143             final WeatherServiceParser weatherService = new WeatherServiceParser(
 144                     JPOSWeatherParser);
 145             final AndroidHttpClient httpClient = AndroidHttpClient
 146                     .newInstance("Android Weather Information Agent");
 147             final CustomHTTPClient HTTPweatherClient = new CustomHTTPClient(
 148                     httpClient);
 149
 150             final ForecastWeatherTask weatherTask = new ForecastWeatherTask(HTTPweatherClient,
 151                     weatherService);
 152
 153
 154             weatherTask.execute(geocodingData);
 155         }
 156     }
 157
 158     @Override
 159     public void getWeatherByDay(final int chosenDay) {
 160         // Nothing to do.
 161     }
 162
 163     public void updateForecastWeatherData(final ForecastWeatherData forecastWeatherData) {
 164         final List<WeatherOverviewEntry> entries = new ArrayList<WeatherOverviewEntry>();
 165         final WeatherOverviewAdapter adapter = new WeatherOverviewAdapter(this.getActivity(),
 166                 R.layout.weather_main_entry_list);
 167
 168         final Bitmap picture = BitmapFactory.decodeResource(
 169                 this.getResources(), R.drawable.ic_02d);
 170         final DecimalFormat tempFormatter = (DecimalFormat) NumberFormat.getNumberInstance(Locale.getDefault());
 171         tempFormatter.applyPattern("#####.##");
 172         final SimpleDateFormat dateFormat = new SimpleDateFormat("EEE, MMM d", Locale.getDefault());
 173         final double tempUnits = this.mIsFahrenheit ? 0 : 273.15;
 174         final String symbol = this.mIsFahrenheit ? "ºF" : "ºC";
 175
 176
 177         final Calendar calendar = Calendar.getInstance();
 178         for (final de.example.exampletdd.model.forecastweather.List forecast : forecastWeatherData
 179                 .getList()) {
 180
 181
 182             final Long forecastUNIXDate = (Long) forecast.getDt();
 183             calendar.setTimeInMillis(forecastUNIXDate * 1000L);
 184             final Date dayTime = calendar.getTime();
 185             final String dayText = dateFormat.format(dayTime);
 186
 187             Double maxTemp = null;
 188             if (forecast.getTemp().getMax() != null) {
 189                 maxTemp = (Double) forecast.getTemp().getMax();
 190                 maxTemp = maxTemp - tempUnits;
 191             }
 192
 193             Double minTemp = null;
 194             if (forecast.getTemp().getMin() != null) {
 195                 minTemp = (Double) forecast.getTemp().getMin();
 196                 minTemp = minTemp - tempUnits;
 197             }
 198
 199             if ((maxTemp != null) && (minTemp != null)) {
 200                 entries.add(new WeatherOverviewEntry(dayText, tempFormatter.format(maxTemp)
 201                         + symbol, tempFormatter.format(minTemp) + symbol, picture));
 202             }
 203         }
 204
 205         this.setListAdapter(null);
 206         adapter.addAll(entries);
 207         this.setListAdapter(adapter);
 208     }
 209
 210     @Override
 211     public void onResume() {
 212         super.onResume();
 213
 214         final SharedPreferences sharedPreferences = PreferenceManager
 215                 .getDefaultSharedPreferences(this.getActivity());
 216
 217         // 1. Update units of measurement.
 218         String keyPreference = this.getResources().getString(
 219                 R.string.weather_preferences_units_key);
 220         final String unitsPreferenceValue = sharedPreferences.getString(keyPreference, "");
 221         final String celsius = this.getResources().getString(
 222                 R.string.weather_preferences_units_celsius);
 223         if (unitsPreferenceValue.equals(celsius)) {
 224             this.mIsFahrenheit = false;
 225         } else {
 226             this.mIsFahrenheit = true;
 227         }
 228
 229         // 2. Update number day forecast.
 230         keyPreference = this.getResources().getString(
 231                 R.string.weather_preferences_day_forecast_key);
 232         this.mDayForecast = sharedPreferences.getString(keyPreference, "");
 233
 234
 235         // 3. Update forecast weather data on display.
 236         final ForecastWeatherData forecastWeatherData = this.mWeatherServicePersistenceFile
 237                 .getForecastWeatherData();
 238         if (forecastWeatherData != null) {
 239             this.updateForecastWeatherData(forecastWeatherData);
 240         }
 241
 242     }
 243
 244     public class ForecastWeatherTask extends AsyncTask<Object, Void, ForecastWeatherData> {
 245         private static final String TAG = "ForecastWeatherTask";
 246         private final CustomHTTPClient weatherHTTPClient;
 247         private final WeatherServiceParser weatherService;
 248         private final DialogFragment newFragment;
 249
 250         public ForecastWeatherTask(final CustomHTTPClient weatherHTTPClient,
 251                 final WeatherServiceParser weatherService) {
 252             this.weatherHTTPClient = weatherHTTPClient;
 253             this.weatherService = weatherService;
 254             this.newFragment = ProgressDialogFragment.newInstance(
 255                     R.string.progress_dialog_get_remote_data,
 256                     WeatherInformationOverviewFragment.this
 257                     .getString(R.string.progress_dialog_generic_message));
 258         }
 259
 260         @Override
 261         protected void onPreExecute() {
 262             this.newFragment.show(WeatherInformationOverviewFragment.this.getActivity()
 263                     .getFragmentManager(), "progressDialog");
 264         }
 265
 266         @Override
 267         protected ForecastWeatherData doInBackground(final Object... params) {
 268             ForecastWeatherData forecastWeatherData = null;
 269
 270             try {
 271                 forecastWeatherData = this.doInBackgroundThrowable(params);
 272             } catch (final ClientProtocolException e) {
 273                 Log.e(TAG, "doInBackground exception: ", e);
 274             } catch (final MalformedURLException e) {
 275                 Log.e(TAG, "doInBackground exception: ", e);
 276             } catch (final URISyntaxException e) {
 277                 Log.e(TAG, "doInBackground exception: ", e);
 278             } catch (final JsonParseException e) {
 279                 Log.e(TAG, "doInBackground exception: ", e);
 280             } catch (final IOException e) {
 281                 // logger infrastructure swallows UnknownHostException :/
 282                 Log.e(TAG, "doInBackground exception: " + e.getMessage(), e);
 283             } finally {
 284                 this.weatherHTTPClient.close();
 285             }
 286
 287             return forecastWeatherData;
 288         }
 289
 290         @Override
 291         protected void onPostExecute(final ForecastWeatherData weatherData) {
 292             this.weatherHTTPClient.close();
 293
 294             this.newFragment.dismiss();
 295
 296             if (weatherData != null) {
 297                 try {
 298                     this.onPostExecuteThrowable(weatherData);
 299                 } catch (final IOException e) {
 300                     Log.e(TAG, "WeatherTask onPostExecute exception: ", e);
 301                     final DialogFragment newFragment = ErrorDialogFragment
 302                             .newInstance(R.string.error_dialog_generic_error);
 303                     newFragment.show(WeatherInformationOverviewFragment.this.getFragmentManager(), "errorDialog");
 304                 }
 305             } else {
 306                 final DialogFragment newFragment = ErrorDialogFragment
 307                         .newInstance(R.string.error_dialog_generic_error);
 308                 newFragment.show(WeatherInformationOverviewFragment.this.getFragmentManager(), "errorDialog");
 309             }
 310         }
 311
 312         @Override
 313         protected void onCancelled(final ForecastWeatherData weatherData) {
 314             this.weatherHTTPClient.close();
 315
 316             final DialogFragment newFragment = ErrorDialogFragment
 317                     .newInstance(R.string.error_dialog_connection_tiemout);
 318             newFragment.show(WeatherInformationOverviewFragment.this.getFragmentManager(), "errorDialog");
 319         }
 320
 321         private ForecastWeatherData doInBackgroundThrowable(final Object... params)
 322                 throws ClientProtocolException, MalformedURLException,
 323                 URISyntaxException, JsonParseException, IOException {
 324             // final SharedPreferences sharedPreferences = PreferenceManager
 325             // .getDefaultSharedPreferences(WeatherInformationOverviewFragment.this
 326             // .getActivity());
 327             //
 328             // final String keyPreference =
 329             // WeatherInformationOverviewFragment.this
 330             // .getActivity().getString(
 331             // R.string.weather_preferences_language_key);
 332             // final String languagePreferenceValue =
 333             // sharedPreferences.getString(keyPreference, "");
 334
 335             // 1. Coordinates
 336             final GeocodingData geocodingData = (GeocodingData) params[0];
 337
 338
 339             final String APIVersion = WeatherInformationOverviewFragment.this.getResources()
 340                     .getString(R.string.api_version);
 341             // 2. Forecast
 342             final String urlAPI = WeatherInformationOverviewFragment.this.getResources()
 343                     .getString(R.string.uri_api_weather_forecast);
 344             final String url = this.weatherService.createURIAPIForecastWeather(urlAPI, APIVersion,
 345                     geocodingData.getLatitude(), geocodingData.getLongitude(), WeatherInformationOverviewFragment.this.mDayForecast);
 346             final String jsonData = this.weatherHTTPClient.retrieveDataAsString(new URL(url));
 347             final ForecastWeatherData forecastWeatherData = this.weatherService
 348                     .retrieveForecastWeatherDataFromJPOS(jsonData);
 349
 350             return forecastWeatherData;
 351         }
 352
 353         private void onPostExecuteThrowable(final ForecastWeatherData forecastWeatherData)
 354                 throws FileNotFoundException, IOException {
 355             WeatherInformationOverviewFragment.this.mWeatherServicePersistenceFile
 356             .storeForecastWeatherData(forecastWeatherData);
 357
 358             WeatherInformationOverviewFragment.this.updateForecastWeatherData(forecastWeatherData);
 359         }
 360     }
 361 }