git.gumartinm.name Git - JavaForFun/blob

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