git.gumartinm.name Git - JavaForFun/blob

   1 package de.example.exampletdd.fragment.current;
   2
   3 import java.io.IOException;
   4 import java.net.MalformedURLException;
   5 import java.net.URISyntaxException;
   6 import java.net.URL;
   7 import java.text.DecimalFormat;
   8 import java.text.NumberFormat;
   9 import java.text.SimpleDateFormat;
  10 import java.util.Calendar;
  11 import java.util.Date;
  12 import java.util.Locale;
  13
  14 import org.apache.http.client.ClientProtocolException;
  15
  16 import android.content.BroadcastReceiver;
  17 import android.content.Context;
  18 import android.content.Intent;
  19 import android.content.IntentFilter;
  20 import android.content.SharedPreferences;
  21 import android.graphics.Bitmap;
  22 import android.graphics.BitmapFactory;
  23 import android.net.http.AndroidHttpClient;
  24 import android.os.AsyncTask;
  25 import android.os.Bundle;
  26 import android.preference.PreferenceManager;
  27 import android.support.v4.app.Fragment;
  28 import android.support.v4.content.LocalBroadcastManager;
  29 import android.util.Log;
  30 import android.view.LayoutInflater;
  31 import android.view.View;
  32 import android.view.ViewGroup;
  33 import android.widget.ImageView;
  34 import android.widget.ProgressBar;
  35 import android.widget.TextView;
  36
  37 import com.fasterxml.jackson.core.JsonParseException;
  38
  39 import de.example.exampletdd.R;
  40 import de.example.exampletdd.httpclient.CustomHTTPClient;
  41 import de.example.exampletdd.model.DatabaseQueries;
  42 import de.example.exampletdd.model.WeatherLocation;
  43 import de.example.exampletdd.model.currentweather.Current;
  44 import de.example.exampletdd.parser.JPOSWeatherParser;
  45 import de.example.exampletdd.service.IconsList;
  46 import de.example.exampletdd.service.PermanentStorage;
  47 import de.example.exampletdd.service.ServiceParser;
  48 import de.example.exampletdd.widget.WidgetProvider;
  49
  50 public class CurrentFragment extends Fragment {
  51     private static final String TAG = "CurrentFragment";
  52     private BroadcastReceiver mReceiver;
  53
  54     @Override
  55     public void onCreate(final Bundle savedInstanceState) {
  56         super.onCreate(savedInstanceState);
  57     }
  58
  59     @Override
  60     public View onCreateView(LayoutInflater inflater, ViewGroup container,
  61                              Bundle savedInstanceState) {
  62
  63         // Inflate the layout for this fragment
  64         return inflater.inflate(R.layout.weather_current_fragment, container, false);
  65     }
  66
  67     @Override
  68     public void onActivityCreated(final Bundle savedInstanceState) {
  69         super.onActivityCreated(savedInstanceState);
  70
  71         if (savedInstanceState != null) {
  72                 // Restore UI state
  73             final Current current = (Current) savedInstanceState.getSerializable("Current");
  74
  75             // TODO: Could it be better to store in global forecast data even if it is null value?
  76             //       So, perhaps do not check for null value and always store in global variable.
  77             if (current != null) {
  78                 final PermanentStorage store = new PermanentStorage(this.getActivity().getApplicationContext());
  79                 store.saveCurrent(current);
  80             }
  81         }
  82
  83         this.setHasOptionsMenu(false);
  84
  85         this.getActivity().findViewById(R.id.weather_current_data_container).setVisibility(View.GONE);
  86         this.getActivity().findViewById(R.id.weather_current_progressbar).setVisibility(View.VISIBLE);
  87         this.getActivity().findViewById(R.id.weather_current_error_message).setVisibility(View.GONE);
  88     }
  89
  90     @Override
  91     public void onResume() {
  92         super.onResume();
  93
  94
  95         this.mReceiver = new BroadcastReceiver() {
  96
  97                         @Override
  98                         public void onReceive(final Context context, final Intent intent) {
  99                                 final String action = intent.getAction();
 100                                 if (action.equals("de.example.exampletdd.UPDATECURRENT")) {
 101                                         final Current currentRemote = (Current) intent.getSerializableExtra("current");
 102
 103                                         if (currentRemote != null) {
 104
 105                                                 // 1. Check conditions. They must be the same as the ones that triggered the AsyncTask.
 106                                                 final DatabaseQueries query = new DatabaseQueries(context.getApplicationContext());
 107                                     final WeatherLocation weatherLocation = query.queryDataBase();
 108                                     final PermanentStorage store = new PermanentStorage(context.getApplicationContext());
 109                                     final Current current = store.getCurrent();
 110
 111                                     if (current == null || !CurrentFragment.this.isDataFresh(weatherLocation.getLastCurrentUIUpdate())) {
 112                                         // 2. Update UI.
 113                                         CurrentFragment.this.updateUI(currentRemote);
 114
 115                                         // 3. Update current data.
 116                                                         store.saveCurrent(currentRemote);
 117
 118                             // 4. Update location data.
 119                             weatherLocation.setLastCurrentUIUpdate(new Date());
 120                             query.updateDataBase(weatherLocation);
 121                                     }
 122
 123                                         } else {
 124                                                 // Empty UI and show error message
 125                                                 CurrentFragment.this.getActivity().findViewById(R.id.weather_current_data_container).setVisibility(View.GONE);
 126                                                 CurrentFragment.this.getActivity().findViewById(R.id.weather_current_progressbar).setVisibility(View.GONE);
 127                                                 CurrentFragment.this.getActivity().findViewById(R.id.weather_current_error_message).setVisibility(View.VISIBLE);
 128                                         }
 129                                 }
 130                         }
 131         };
 132
 133         // Register receiver
 134         final IntentFilter filter = new IntentFilter();
 135         filter.addAction("de.example.exampletdd.UPDATECURRENT");
 136         LocalBroadcastManager.getInstance(this.getActivity().getApplicationContext())
 137                                                         .registerReceiver(this.mReceiver, filter);
 138
 139         // Empty UI
 140         this.getActivity().findViewById(R.id.weather_current_data_container).setVisibility(View.GONE);
 141
 142         final DatabaseQueries query = new DatabaseQueries(this.getActivity().getApplicationContext());
 143         final WeatherLocation weatherLocation = query.queryDataBase();
 144         if (weatherLocation == null) {
 145             // Nothing to do.
 146                 // Show error message
 147                 final ProgressBar progress = (ProgressBar) getActivity().findViewById(R.id.weather_current_progressbar);
 148                 progress.setVisibility(View.GONE);
 149                         final TextView errorMessage = (TextView) getActivity().findViewById(R.id.weather_current_error_message);
 150                 errorMessage.setVisibility(View.VISIBLE);
 151             return;
 152         }
 153
 154         // If is new location update widgets.
 155         if (weatherLocation.getIsNew()) {
 156             WidgetProvider.refreshAllAppWidgets(this.getActivity().getApplicationContext());
 157             // Update location data.
 158             weatherLocation.setIsNew(false);
 159             query.updateDataBase(weatherLocation);
 160         }
 161
 162
 163         final PermanentStorage store = new PermanentStorage(this.getActivity().getApplicationContext());
 164         final Current current = store.getCurrent();
 165
 166         if (current != null && this.isDataFresh(weatherLocation.getLastCurrentUIUpdate())) {
 167             this.updateUI(current);
 168         } else {
 169             // Load remote data (aynchronous)
 170             // Gets the data from the web.
 171                 this.getActivity().findViewById(R.id.weather_current_progressbar).setVisibility(View.VISIBLE);
 172                 this.getActivity().findViewById(R.id.weather_current_error_message).setVisibility(View.GONE);
 173             final CurrentTask task = new CurrentTask(
 174                         this.getActivity().getApplicationContext(),
 175                     new CustomHTTPClient(AndroidHttpClient.newInstance("Android 4.3 WeatherInformation Agent")),
 176                     new ServiceParser(new JPOSWeatherParser()));
 177
 178             task.execute(weatherLocation.getLatitude(), weatherLocation.getLongitude());
 179         }
 180     }
 181
 182     @Override
 183     public void onSaveInstanceState(final Bundle savedInstanceState) {
 184
 185         // Save UI state
 186         final PermanentStorage store = new PermanentStorage(this.getActivity().getApplicationContext());
 187         final Current current = store.getCurrent();
 188
 189         // TODO: Could it be better to save current data even if it is null value?
 190         //       So, perhaps do not check for null value.
 191         if (current != null) {
 192             savedInstanceState.putSerializable("Current", current);
 193         }
 194
 195         super.onSaveInstanceState(savedInstanceState);
 196     }
 197
 198     @Override
 199     public void onPause() {
 200         LocalBroadcastManager.getInstance(this.getActivity().getApplicationContext()).unregisterReceiver(this.mReceiver);
 201
 202         super.onPause();
 203     }
 204
 205     private interface UnitsConversor {
 206
 207         public double doConversion(final double value);
 208     }
 209
 210     private void updateUI(final Current current) {
 211
 212         final SharedPreferences sharedPreferences = PreferenceManager
 213                 .getDefaultSharedPreferences(this.getActivity().getApplicationContext());
 214
 215         // TODO: repeating the same code in Overview, Specific and Current!!!
 216         // 1. Update units of measurement.
 217         // 1.1 Temperature
 218         String tempSymbol;
 219         UnitsConversor tempUnitsConversor;
 220         String keyPreference = this.getResources().getString(R.string.weather_preferences_temperature_key);
 221         String[] values = this.getResources().getStringArray(R.array.weather_preferences_temperature);
 222         String unitsPreferenceValue = sharedPreferences.getString(
 223                 keyPreference, this.getString(R.string.weather_preferences_temperature_celsius));
 224         if (unitsPreferenceValue.equals(values[0])) {
 225                 tempSymbol = values[0];
 226                 tempUnitsConversor = new UnitsConversor(){
 227
 228                                 @Override
 229                                 public double doConversion(final double value) {
 230                                         return value - 273.15;
 231                                 }
 232
 233                 };
 234         } else if (unitsPreferenceValue.equals(values[1])) {
 235                 tempSymbol = values[1];
 236                 tempUnitsConversor = new UnitsConversor(){
 237
 238                                 @Override
 239                                 public double doConversion(final double value) {
 240                                         return (value * 1.8) - 459.67;
 241                                 }
 242
 243                 };
 244         } else {
 245                 tempSymbol = values[2];
 246                 tempUnitsConversor = new UnitsConversor(){
 247
 248                                 @Override
 249                                 public double doConversion(final double value) {
 250                                         return value;
 251                                 }
 252
 253                 };
 254         }
 255
 256         // 1.2 Wind
 257         String windSymbol;
 258         UnitsConversor windUnitsConversor;
 259         keyPreference = this.getResources().getString(R.string.weather_preferences_wind_key);
 260         values = this.getResources().getStringArray(R.array.weather_preferences_wind);
 261         unitsPreferenceValue = sharedPreferences.getString(
 262                 keyPreference, this.getString(R.string.weather_preferences_wind_meters));
 263         if (unitsPreferenceValue.equals(values[0])) {
 264                 windSymbol = values[0];
 265                 windUnitsConversor = new UnitsConversor(){
 266
 267                         @Override
 268                         public double doConversion(double value) {
 269                                 return value;
 270                         }
 271                 };
 272         } else {
 273                 windSymbol = values[1];
 274                 windUnitsConversor = new UnitsConversor(){
 275
 276                         @Override
 277                         public double doConversion(double value) {
 278                                 return value * 2.237;
 279                         }
 280                 };
 281         }
 282
 283         // 1.3 Pressure
 284         String pressureSymbol;
 285         UnitsConversor pressureUnitsConversor;
 286         keyPreference = this.getResources().getString(R.string.weather_preferences_pressure_key);
 287         values = this.getResources().getStringArray(R.array.weather_preferences_pressure);
 288         unitsPreferenceValue = sharedPreferences.getString(
 289                 keyPreference, this.getString(R.string.weather_preferences_pressure_pascal));
 290         if (unitsPreferenceValue.equals(values[0])) {
 291                 pressureSymbol = values[0];
 292                 pressureUnitsConversor = new UnitsConversor(){
 293
 294                         @Override
 295                         public double doConversion(double value) {
 296                                 return value;
 297                         }
 298                 };
 299         } else {
 300                 pressureSymbol = values[1];
 301                 pressureUnitsConversor = new UnitsConversor(){
 302
 303                         @Override
 304                         public double doConversion(double value) {
 305                                 return value / 113.25d;
 306                         }
 307                 };
 308         }
 309
 310
 311         // 2. Formatters
 312         final DecimalFormat tempFormatter = (DecimalFormat) NumberFormat.getNumberInstance(Locale.US);
 313         tempFormatter.applyPattern("#####.#####");
 314         final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss", Locale.US);
 315
 316
 317         // 3. Prepare data for UI.
 318         String tempMax = "";
 319         if (current.getMain().getTemp_max() != null) {
 320             double conversion = (Double) current.getMain().getTemp_max();
 321             conversion = tempUnitsConversor.doConversion(conversion);
 322             tempMax = tempFormatter.format(conversion) + tempSymbol;
 323         }
 324         String tempMin = "";
 325         if (current.getMain().getTemp_min() != null) {
 326             double conversion = (Double) current.getMain().getTemp_min();
 327             conversion = tempUnitsConversor.doConversion(conversion);
 328             tempMin = tempFormatter.format(conversion) + tempSymbol;
 329         }
 330         Bitmap picture;
 331         if ((current.getWeather().size() > 0)
 332                 && (current.getWeather().get(0).getIcon() != null)
 333                 && (IconsList.getIcon(current.getWeather().get(0).getIcon()) != null)) {
 334             final String icon = current.getWeather().get(0).getIcon();
 335             picture = BitmapFactory.decodeResource(this.getResources(), IconsList.getIcon(icon)
 336                     .getResourceDrawable());
 337         } else {
 338             picture = BitmapFactory.decodeResource(this.getResources(),
 339                     R.drawable.weather_severe_alert);
 340         }
 341
 342         String description = this.getString(R.string.test_field_description_when_error);
 343         if (current.getWeather().size() > 0) {
 344             description = current.getWeather().get(0).getDescription();
 345         }
 346
 347         String humidityValue = "";
 348         if ((current.getMain() != null)
 349                 && (current.getMain().getHumidity() != null)) {
 350             final double conversion = (Double) current.getMain().getHumidity();
 351             humidityValue = tempFormatter.format(conversion);
 352         }
 353         String pressureValue = "";
 354         if ((current.getMain() != null)
 355                 && (current.getMain().getPressure() != null)) {
 356             double conversion = (Double) current.getMain().getPressure();
 357             conversion = pressureUnitsConversor.doConversion(conversion);
 358             pressureValue = tempFormatter.format(conversion);
 359         }
 360         String windValue = "";
 361         if ((current.getWind() != null)
 362                 && (current.getWind().getSpeed() != null)) {
 363             double conversion = (Double) current.getWind().getSpeed();
 364             conversion = windUnitsConversor.doConversion(conversion);
 365             windValue = tempFormatter.format(conversion);
 366         }
 367         String rainValue = "";
 368         if ((current.getRain() != null)
 369                 && (current.getRain().get3h() != null)) {
 370             final double conversion = (Double) current.getRain().get3h();
 371             rainValue = tempFormatter.format(conversion);
 372         }
 373         String cloudsValue = "";
 374         if ((current.getClouds() != null)
 375                 && (current.getClouds().getAll() != null)) {
 376             final double conversion = (Double) current.getClouds().getAll();
 377             cloudsValue = tempFormatter.format(conversion);
 378         }
 379         String snowValue = "";
 380         if ((current.getSnow() != null)
 381                 && (current.getSnow().get3h() != null)) {
 382             final double conversion = (Double) current.getSnow().get3h();
 383             snowValue = tempFormatter.format(conversion);
 384         }
 385         String feelsLike = "";
 386         if (current.getMain().getTemp() != null) {
 387             double conversion = (Double) current.getMain().getTemp();
 388             conversion = tempUnitsConversor.doConversion(conversion);
 389             feelsLike = tempFormatter.format(conversion);
 390         }
 391         String sunRiseTime = "";
 392         if (current.getSys().getSunrise() != null) {
 393             final long unixTime = (Long) current.getSys().getSunrise();
 394             final Date unixDate = new Date(unixTime * 1000L);
 395             sunRiseTime = dateFormat.format(unixDate);
 396         }
 397         String sunSetTime = "";
 398         if (current.getSys().getSunset() != null) {
 399             final long unixTime = (Long) current.getSys().getSunset();
 400             final Date unixDate = new Date(unixTime * 1000L);
 401             sunSetTime = dateFormat.format(unixDate);
 402         }
 403
 404
 405         // 4. Update UI.
 406         final TextView tempMaxView = (TextView) getActivity().findViewById(R.id.weather_current_temp_max);
 407         tempMaxView.setText(tempMax);
 408         final TextView tempMinView = (TextView) getActivity().findViewById(R.id.weather_current_temp_min);
 409         tempMinView.setText(tempMin);
 410         final ImageView pictureView = (ImageView) getActivity().findViewById(R.id.weather_current_picture);
 411         pictureView.setImageBitmap(picture);
 412
 413         final TextView descriptionView = (TextView) getActivity().findViewById(R.id.weather_current_description);
 414         descriptionView.setText(description);
 415
 416         ((TextView) getActivity().findViewById(R.id.weather_current_humidity_value)).setText(humidityValue);
 417         ((TextView) getActivity().findViewById(R.id.weather_current_humidity_units)).setText(
 418                         this.getActivity().getApplicationContext().getString(R.string.text_units_percent));
 419
 420         ((TextView) getActivity().findViewById(R.id.weather_current_pressure_value)).setText(pressureValue);
 421         ((TextView) getActivity().findViewById(R.id.weather_current_pressure_units)).setText(pressureSymbol);
 422
 423         ((TextView) getActivity().findViewById(R.id.weather_current_wind_value)).setText(windValue);
 424         ((TextView) getActivity().findViewById(R.id.weather_current_wind_units)).setText(windSymbol);
 425
 426         ((TextView) getActivity().findViewById(R.id.weather_current_rain_value)).setText(rainValue);
 427         ((TextView) getActivity().findViewById(R.id.weather_current_rain_units)).setText(
 428                         this.getActivity().getApplicationContext().getString(R.string.text_units_mm3h));
 429
 430         ((TextView) getActivity().findViewById(R.id.weather_current_clouds_value)).setText(cloudsValue);
 431         ((TextView) getActivity().findViewById(R.id.weather_current_clouds_units)).setText(
 432                         this.getActivity().getApplicationContext().getString(R.string.text_units_percent));
 433
 434         ((TextView) getActivity().findViewById(R.id.weather_current_snow_value)).setText(snowValue);
 435         ((TextView) getActivity().findViewById(R.id.weather_current_snow_units)).setText(
 436                         this.getActivity().getApplicationContext().getString(R.string.text_units_mm3h));
 437
 438         ((TextView) getActivity().findViewById(R.id.weather_current_feelslike_value)).setText(feelsLike);
 439         ((TextView) getActivity().findViewById(R.id.weather_current_feelslike_units)).setText(tempSymbol);
 440
 441         ((TextView) getActivity().findViewById(R.id.weather_current_sunrise_value)).setText(sunRiseTime);
 442
 443         ((TextView) getActivity().findViewById(R.id.weather_current_sunset_value)).setText(sunSetTime);
 444
 445         this.getActivity().findViewById(R.id.weather_current_data_container).setVisibility(View.VISIBLE);
 446         this.getActivity().findViewById(R.id.weather_current_progressbar).setVisibility(View.GONE);
 447         this.getActivity().findViewById(R.id.weather_current_error_message).setVisibility(View.GONE);
 448     }
 449
 450     private boolean isDataFresh(final Date lastUpdate) {
 451         if (lastUpdate == null) {
 452                 return false;
 453         }
 454
 455         final SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(
 456                         this.getActivity().getApplicationContext());
 457         final String keyPreference = this.getString(R.string.weather_preferences_refresh_interval_key);
 458         final String refresh = sharedPreferences.getString(
 459                         keyPreference,
 460                         this.getResources().getStringArray(R.array.weather_preferences_refresh_interval)[0]);
 461         final Date currentTime = new Date();
 462         if (((currentTime.getTime() - lastUpdate.getTime())) < Long.valueOf(refresh)) {
 463                 return true;
 464         }
 465
 466         return false;
 467     }
 468
 469     private class CurrentTask extends AsyncTask<Object, Void, Current> {
 470         // Store the context passed to the AsyncTask when the system instantiates it.
 471         private final Context localContext;
 472         final CustomHTTPClient HTTPClient;
 473         final ServiceParser weatherService;
 474
 475         public CurrentTask(final Context context, final CustomHTTPClient HTTPClient,
 476                         final ServiceParser weatherService) {
 477                 this.localContext = context;
 478             this.HTTPClient = HTTPClient;
 479             this.weatherService = weatherService;
 480         }
 481
 482         @Override
 483         protected Current doInBackground(final Object... params) {
 484                 final double latitude = (Double) params[0];
 485             final double longitude = (Double) params[1];
 486
 487             Current current = null;
 488             try {
 489                 current = this.doInBackgroundThrowable(latitude, longitude);
 490             } catch (final JsonParseException e) {
 491                 Log.e(TAG, "CurrentTask doInBackground exception: ", e);
 492             } catch (final ClientProtocolException e) {
 493                 Log.e(TAG, "CurrentTask doInBackground exception: ", e);
 494             } catch (final MalformedURLException e) {
 495                 Log.e(TAG, "CurrentTask doInBackground exception: ", e);
 496             } catch (final URISyntaxException e) {
 497                 Log.e(TAG, "CurrentTask doInBackground exception: ", e);
 498             } catch (final IOException e) {
 499                 // logger infrastructure swallows UnknownHostException :/
 500                 Log.e(TAG, "CurrentTask doInBackground exception: " + e.getMessage(), e);
 501             } finally {
 502                 HTTPClient.close();
 503             }
 504
 505             return current;
 506         }
 507
 508         private Current doInBackgroundThrowable(final double latitude, final double longitude)
 509                         throws URISyntaxException, ClientProtocolException, JsonParseException, IOException {
 510
 511                 final String APIVersion = localContext.getResources().getString(R.string.api_version);
 512             final String urlAPI = localContext.getResources().getString(R.string.uri_api_weather_today);
 513             final String url = weatherService.createURIAPICurrent(urlAPI, APIVersion, latitude, longitude);
 514             final String urlWithoutCache = url.concat("&time=" + System.currentTimeMillis());
 515             final String jsonData = HTTPClient.retrieveDataAsString(new URL(urlWithoutCache));
 516
 517             return weatherService.retrieveCurrentFromJPOS(jsonData);
 518         }
 519
 520         @Override
 521         protected void onPostExecute(final Current current) {
 522
 523             // Call updateUI on the UI thread.
 524             final Intent currentData = new Intent("de.example.exampletdd.UPDATECURRENT");
 525             currentData.putExtra("current", current);
 526             LocalBroadcastManager.getInstance(this.localContext).sendBroadcastSync(currentData);
 527         }
 528     }
 529 }