git.gumartinm.name Git - JavaForFun/blob

   1 /**
   2  * Copyright 2014 Gustavo Martin Morcuende
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package name.gumartinm.weather.information.fragment.current;
  17
  18 import java.io.IOException;
  19 import java.net.MalformedURLException;
  20 import java.net.URISyntaxException;
  21 import java.net.URL;
  22 import java.text.DecimalFormat;
  23 import java.text.NumberFormat;
  24 import java.text.SimpleDateFormat;
  25 import java.util.Date;
  26 import java.util.Locale;
  27
  28 import org.apache.http.client.ClientProtocolException;
  29
  30 import android.content.BroadcastReceiver;
  31 import android.content.Context;
  32 import android.content.Intent;
  33 import android.content.IntentFilter;
  34 import android.content.SharedPreferences;
  35 import android.graphics.Bitmap;
  36 import android.graphics.BitmapFactory;
  37 import android.net.http.AndroidHttpClient;
  38 import android.os.AsyncTask;
  39 import android.os.Bundle;
  40 import android.preference.PreferenceManager;
  41 import android.support.v4.app.Fragment;
  42 import android.support.v4.content.LocalBroadcastManager;
  43 import android.util.Log;
  44 import android.view.LayoutInflater;
  45 import android.view.View;
  46 import android.view.ViewGroup;
  47 import android.widget.ImageView;
  48 import android.widget.ProgressBar;
  49 import android.widget.TextView;
  50
  51 import com.fasterxml.jackson.core.JsonParseException;
  52 import name.gumartinm.weather.information.R;
  53 import name.gumartinm.weather.information.httpclient.CustomHTTPClient;
  54 import name.gumartinm.weather.information.model.DatabaseQueries;
  55 import name.gumartinm.weather.information.model.WeatherLocation;
  56 import name.gumartinm.weather.information.model.currentweather.Current;
  57 import name.gumartinm.weather.information.parser.JPOSCurrentParser;
  58 import name.gumartinm.weather.information.service.IconsList;
  59 import name.gumartinm.weather.information.service.PermanentStorage;
  60 import name.gumartinm.weather.information.service.ServiceCurrentParser;
  61 import name.gumartinm.weather.information.widget.WidgetProvider;
  62
  63 public class CurrentFragment extends Fragment {
  64     private static final String TAG = "CurrentFragment";
  65     private BroadcastReceiver mReceiver;
  66
  67     @Override
  68     public void onCreate(final Bundle savedInstanceState) {
  69         super.onCreate(savedInstanceState);
  70     }
  71
  72     @Override
  73     public View onCreateView(LayoutInflater inflater, ViewGroup container,
  74                              Bundle savedInstanceState) {
  75
  76         // Inflate the layout for this fragment
  77         return inflater.inflate(R.layout.weather_current_fragment, container, false);
  78     }
  79
  80     @Override
  81     public void onActivityCreated(final Bundle savedInstanceState) {
  82         super.onActivityCreated(savedInstanceState);
  83
  84         if (savedInstanceState != null) {
  85                 // Restore UI state
  86             final Current current = (Current) savedInstanceState.getSerializable("Current");
  87
  88             if (current != null) {
  89                 final PermanentStorage store = new PermanentStorage(this.getActivity().getApplicationContext());
  90                 store.saveCurrent(current);
  91             }
  92         }
  93
  94         this.setHasOptionsMenu(false);
  95
  96         this.getActivity().findViewById(R.id.weather_current_data_container).setVisibility(View.GONE);
  97         this.getActivity().findViewById(R.id.weather_current_progressbar).setVisibility(View.VISIBLE);
  98         this.getActivity().findViewById(R.id.weather_current_error_message).setVisibility(View.GONE);
  99     }
 100
 101     @Override
 102     public void onResume() {
 103         super.onResume();
 104
 105
 106         this.mReceiver = new BroadcastReceiver() {
 107
 108                         @Override
 109                         public void onReceive(final Context context, final Intent intent) {
 110                                 final String action = intent.getAction();
 111                                 if (action.equals("name.gumartinm.weather.information.UPDATECURRENT")) {
 112                                         final Current currentRemote = (Current) intent.getSerializableExtra("current");
 113
 114                                         if (currentRemote != null) {
 115
 116                                                 // 1. Check conditions. They must be the same as the ones that triggered the AsyncTask.
 117                                                 final DatabaseQueries query = new DatabaseQueries(context.getApplicationContext());
 118                                     final WeatherLocation weatherLocation = query.queryDataBase();
 119                                     final PermanentStorage store = new PermanentStorage(context.getApplicationContext());
 120                                     final Current current = store.getCurrent();
 121
 122                                     if (current == null || !CurrentFragment.this.isDataFresh(weatherLocation.getLastCurrentUIUpdate())) {
 123                                         // 2. Update UI.
 124                                         CurrentFragment.this.updateUI(currentRemote);
 125
 126                                         // 3. Update current data.
 127                                                         store.saveCurrent(currentRemote);
 128
 129                             // 4. Update location data.
 130                             weatherLocation.setLastCurrentUIUpdate(new Date());
 131                             query.updateDataBase(weatherLocation);
 132                                     }
 133
 134                                         } else {
 135                                                 // Empty UI and show error message
 136                                                 CurrentFragment.this.getActivity().findViewById(R.id.weather_current_data_container).setVisibility(View.GONE);
 137                                                 CurrentFragment.this.getActivity().findViewById(R.id.weather_current_progressbar).setVisibility(View.GONE);
 138                                                 CurrentFragment.this.getActivity().findViewById(R.id.weather_current_error_message).setVisibility(View.VISIBLE);
 139                                         }
 140                                 }
 141                         }
 142         };
 143
 144         // Register receiver
 145         final IntentFilter filter = new IntentFilter();
 146         filter.addAction("name.gumartinm.weather.information.UPDATECURRENT");
 147         LocalBroadcastManager.getInstance(this.getActivity().getApplicationContext())
 148                                                         .registerReceiver(this.mReceiver, filter);
 149
 150         // Empty UI
 151         this.getActivity().findViewById(R.id.weather_current_data_container).setVisibility(View.GONE);
 152
 153         final DatabaseQueries query = new DatabaseQueries(this.getActivity().getApplicationContext());
 154         final WeatherLocation weatherLocation = query.queryDataBase();
 155         if (weatherLocation == null) {
 156             // Nothing to do.
 157                 // Show error message
 158                 final ProgressBar progress = (ProgressBar) getActivity().findViewById(R.id.weather_current_progressbar);
 159                 progress.setVisibility(View.GONE);
 160                         final TextView errorMessage = (TextView) getActivity().findViewById(R.id.weather_current_error_message);
 161                 errorMessage.setVisibility(View.VISIBLE);
 162             return;
 163         }
 164
 165         // If is new location update widgets.
 166         if (weatherLocation.getIsNew()) {
 167             WidgetProvider.refreshAllAppWidgets(this.getActivity().getApplicationContext());
 168             // Update location data.
 169             weatherLocation.setIsNew(false);
 170             query.updateDataBase(weatherLocation);
 171         }
 172
 173
 174         final PermanentStorage store = new PermanentStorage(this.getActivity().getApplicationContext());
 175         final Current current = store.getCurrent();
 176
 177         if (current != null && this.isDataFresh(weatherLocation.getLastCurrentUIUpdate())) {
 178             this.updateUI(current);
 179         } else {
 180             // Load remote data (aynchronous)
 181             // Gets the data from the web.
 182                 this.getActivity().findViewById(R.id.weather_current_progressbar).setVisibility(View.VISIBLE);
 183                 this.getActivity().findViewById(R.id.weather_current_error_message).setVisibility(View.GONE);
 184             final CurrentTask task = new CurrentTask(
 185                         this.getActivity().getApplicationContext(),
 186                     new CustomHTTPClient(AndroidHttpClient.newInstance(this.getString(R.string.http_client_agent))),
 187                     new ServiceCurrentParser(new JPOSCurrentParser()));
 188
 189             task.execute(weatherLocation.getLatitude(), weatherLocation.getLongitude());
 190         }
 191     }
 192
 193     @Override
 194     public void onSaveInstanceState(final Bundle savedInstanceState) {
 195
 196         // Save UI state
 197         final PermanentStorage store = new PermanentStorage(this.getActivity().getApplicationContext());
 198         final Current current = store.getCurrent();
 199
 200         if (current != null) {
 201             savedInstanceState.putSerializable("Current", current);
 202         }
 203
 204         super.onSaveInstanceState(savedInstanceState);
 205     }
 206
 207     @Override
 208     public void onPause() {
 209         LocalBroadcastManager.getInstance(this.getActivity().getApplicationContext()).unregisterReceiver(this.mReceiver);
 210
 211         super.onPause();
 212     }
 213
 214     private interface UnitsConversor {
 215
 216         public double doConversion(final double value);
 217     }
 218
 219     private void updateUI(final Current current) {
 220
 221         final SharedPreferences sharedPreferences = PreferenceManager
 222                 .getDefaultSharedPreferences(this.getActivity().getApplicationContext());
 223
 224         // TODO: repeating the same code in Overview, Specific and Current!!!
 225         // 1. Update units of measurement.
 226         // 1.1 Temperature
 227         String tempSymbol;
 228         UnitsConversor tempUnitsConversor;
 229         String keyPreference = this.getResources().getString(R.string.weather_preferences_temperature_key);
 230         String[] values = this.getResources().getStringArray(R.array.weather_preferences_temperature);
 231         String unitsPreferenceValue = sharedPreferences.getString(
 232                 keyPreference, this.getString(R.string.weather_preferences_temperature_celsius));
 233         if (unitsPreferenceValue.equals(values[0])) {
 234                 tempSymbol = values[0];
 235                 tempUnitsConversor = new UnitsConversor(){
 236
 237                                 @Override
 238                                 public double doConversion(final double value) {
 239                                         return value - 273.15;
 240                                 }
 241
 242                 };
 243         } else if (unitsPreferenceValue.equals(values[1])) {
 244                 tempSymbol = values[1];
 245                 tempUnitsConversor = new UnitsConversor(){
 246
 247                                 @Override
 248                                 public double doConversion(final double value) {
 249                                         return (value * 1.8) - 459.67;
 250                                 }
 251
 252                 };
 253         } else {
 254                 tempSymbol = values[2];
 255                 tempUnitsConversor = new UnitsConversor(){
 256
 257                                 @Override
 258                                 public double doConversion(final double value) {
 259                                         return value;
 260                                 }
 261
 262                 };
 263         }
 264
 265         // 1.2 Wind
 266         String windSymbol;
 267         UnitsConversor windUnitsConversor;
 268         keyPreference = this.getResources().getString(R.string.weather_preferences_wind_key);
 269         values = this.getResources().getStringArray(R.array.weather_preferences_wind);
 270         unitsPreferenceValue = sharedPreferences.getString(
 271                 keyPreference, this.getString(R.string.weather_preferences_wind_meters));
 272         if (unitsPreferenceValue.equals(values[0])) {
 273                 windSymbol = values[0];
 274                 windUnitsConversor = new UnitsConversor(){
 275
 276                         @Override
 277                         public double doConversion(double value) {
 278                                 return value;
 279                         }
 280                 };
 281         } else {
 282                 windSymbol = values[1];
 283                 windUnitsConversor = new UnitsConversor(){
 284
 285                         @Override
 286                         public double doConversion(double value) {
 287                                 return value * 2.237;
 288                         }
 289                 };
 290         }
 291
 292         // 1.3 Pressure
 293         String pressureSymbol;
 294         UnitsConversor pressureUnitsConversor;
 295         keyPreference = this.getResources().getString(R.string.weather_preferences_pressure_key);
 296         values = this.getResources().getStringArray(R.array.weather_preferences_pressure);
 297         unitsPreferenceValue = sharedPreferences.getString(
 298                 keyPreference, this.getString(R.string.weather_preferences_pressure_pascal));
 299         if (unitsPreferenceValue.equals(values[0])) {
 300                 pressureSymbol = values[0];
 301                 pressureUnitsConversor = new UnitsConversor(){
 302
 303                         @Override
 304                         public double doConversion(double value) {
 305                                 return value;
 306                         }
 307                 };
 308         } else {
 309                 pressureSymbol = values[1];
 310                 pressureUnitsConversor = new UnitsConversor(){
 311
 312                         @Override
 313                         public double doConversion(double value) {
 314                                 return value / 113.25d;
 315                         }
 316                 };
 317         }
 318
 319
 320         // 2. Formatters
 321         final DecimalFormat tempFormatter = (DecimalFormat) NumberFormat.getNumberInstance(Locale.US);
 322         tempFormatter.applyPattern("#####.#####");
 323         final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss", Locale.US);
 324
 325
 326         // 3. Prepare data for UI.
 327         String tempMax = "";
 328         if (current.getMain().getTemp_max() != null) {
 329             double conversion = (Double) current.getMain().getTemp_max();
 330             conversion = tempUnitsConversor.doConversion(conversion);
 331             tempMax = tempFormatter.format(conversion) + tempSymbol;
 332         }
 333         String tempMin = "";
 334         if (current.getMain().getTemp_min() != null) {
 335             double conversion = (Double) current.getMain().getTemp_min();
 336             conversion = tempUnitsConversor.doConversion(conversion);
 337             tempMin = tempFormatter.format(conversion) + tempSymbol;
 338         }
 339         Bitmap picture;
 340         if ((current.getWeather().size() > 0)
 341                 && (current.getWeather().get(0).getIcon() != null)
 342                 && (IconsList.getIcon(current.getWeather().get(0).getIcon()) != null)) {
 343             final String icon = current.getWeather().get(0).getIcon();
 344             picture = BitmapFactory.decodeResource(this.getResources(), IconsList.getIcon(icon)
 345                     .getResourceDrawable());
 346         } else {
 347             picture = BitmapFactory.decodeResource(this.getResources(),
 348                     R.drawable.weather_severe_alert);
 349         }
 350
 351         String description = this.getString(R.string.text_field_description_when_error);
 352         if (current.getWeather().size() > 0) {
 353             description = current.getWeather().get(0).getDescription();
 354         }
 355
 356         String humidityValue = "";
 357         if ((current.getMain() != null)
 358                 && (current.getMain().getHumidity() != null)) {
 359             final double conversion = (Double) current.getMain().getHumidity();
 360             humidityValue = tempFormatter.format(conversion);
 361         }
 362         String pressureValue = "";
 363         if ((current.getMain() != null)
 364                 && (current.getMain().getPressure() != null)) {
 365             double conversion = (Double) current.getMain().getPressure();
 366             conversion = pressureUnitsConversor.doConversion(conversion);
 367             pressureValue = tempFormatter.format(conversion);
 368         }
 369         String windValue = "";
 370         if ((current.getWind() != null)
 371                 && (current.getWind().getSpeed() != null)) {
 372             double conversion = (Double) current.getWind().getSpeed();
 373             conversion = windUnitsConversor.doConversion(conversion);
 374             windValue = tempFormatter.format(conversion);
 375         }
 376         String rainValue = "";
 377         if ((current.getRain() != null)
 378                 && (current.getRain().get3h() != null)) {
 379             final double conversion = (Double) current.getRain().get3h();
 380             rainValue = tempFormatter.format(conversion);
 381         }
 382         String cloudsValue = "";
 383         if ((current.getClouds() != null)
 384                 && (current.getClouds().getAll() != null)) {
 385             final double conversion = (Double) current.getClouds().getAll();
 386             cloudsValue = tempFormatter.format(conversion);
 387         }
 388         String snowValue = "";
 389         if ((current.getSnow() != null)
 390                 && (current.getSnow().get3h() != null)) {
 391             final double conversion = (Double) current.getSnow().get3h();
 392             snowValue = tempFormatter.format(conversion);
 393         }
 394         String feelsLike = "";
 395         if (current.getMain().getTemp() != null) {
 396             double conversion = (Double) current.getMain().getTemp();
 397             conversion = tempUnitsConversor.doConversion(conversion);
 398             feelsLike = tempFormatter.format(conversion);
 399         }
 400         String sunRiseTime = "";
 401         if (current.getSys().getSunrise() != null) {
 402             final long unixTime = (Long) current.getSys().getSunrise();
 403             final Date unixDate = new Date(unixTime * 1000L);
 404             sunRiseTime = dateFormat.format(unixDate);
 405         }
 406         String sunSetTime = "";
 407         if (current.getSys().getSunset() != null) {
 408             final long unixTime = (Long) current.getSys().getSunset();
 409             final Date unixDate = new Date(unixTime * 1000L);
 410             sunSetTime = dateFormat.format(unixDate);
 411         }
 412
 413
 414         // 4. Update UI.
 415         final TextView tempMaxView = (TextView) getActivity().findViewById(R.id.weather_current_temp_max);
 416         tempMaxView.setText(tempMax);
 417         final TextView tempMinView = (TextView) getActivity().findViewById(R.id.weather_current_temp_min);
 418         tempMinView.setText(tempMin);
 419         final ImageView pictureView = (ImageView) getActivity().findViewById(R.id.weather_current_picture);
 420         pictureView.setImageBitmap(picture);
 421
 422         final TextView descriptionView = (TextView) getActivity().findViewById(R.id.weather_current_description);
 423         descriptionView.setText(description);
 424
 425         ((TextView) getActivity().findViewById(R.id.weather_current_humidity_value)).setText(humidityValue);
 426         ((TextView) getActivity().findViewById(R.id.weather_current_humidity_units)).setText(
 427                         this.getActivity().getApplicationContext().getString(R.string.text_units_percent));
 428
 429         ((TextView) getActivity().findViewById(R.id.weather_current_pressure_value)).setText(pressureValue);
 430         ((TextView) getActivity().findViewById(R.id.weather_current_pressure_units)).setText(pressureSymbol);
 431
 432         ((TextView) getActivity().findViewById(R.id.weather_current_wind_value)).setText(windValue);
 433         ((TextView) getActivity().findViewById(R.id.weather_current_wind_units)).setText(windSymbol);
 434
 435         ((TextView) getActivity().findViewById(R.id.weather_current_rain_value)).setText(rainValue);
 436         ((TextView) getActivity().findViewById(R.id.weather_current_rain_units)).setText(
 437                         this.getActivity().getApplicationContext().getString(R.string.text_units_mm3h));
 438
 439         ((TextView) getActivity().findViewById(R.id.weather_current_clouds_value)).setText(cloudsValue);
 440         ((TextView) getActivity().findViewById(R.id.weather_current_clouds_units)).setText(
 441                         this.getActivity().getApplicationContext().getString(R.string.text_units_percent));
 442
 443         ((TextView) getActivity().findViewById(R.id.weather_current_snow_value)).setText(snowValue);
 444         ((TextView) getActivity().findViewById(R.id.weather_current_snow_units)).setText(
 445                         this.getActivity().getApplicationContext().getString(R.string.text_units_mm3h));
 446
 447         ((TextView) getActivity().findViewById(R.id.weather_current_feelslike_value)).setText(feelsLike);
 448         ((TextView) getActivity().findViewById(R.id.weather_current_feelslike_units)).setText(tempSymbol);
 449
 450         ((TextView) getActivity().findViewById(R.id.weather_current_sunrise_value)).setText(sunRiseTime);
 451
 452         ((TextView) getActivity().findViewById(R.id.weather_current_sunset_value)).setText(sunSetTime);
 453
 454         this.getActivity().findViewById(R.id.weather_current_data_container).setVisibility(View.VISIBLE);
 455         this.getActivity().findViewById(R.id.weather_current_progressbar).setVisibility(View.GONE);
 456         this.getActivity().findViewById(R.id.weather_current_error_message).setVisibility(View.GONE);
 457     }
 458
 459     private boolean isDataFresh(final Date lastUpdate) {
 460         if (lastUpdate == null) {
 461                 return false;
 462         }
 463
 464         final SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(
 465                         this.getActivity().getApplicationContext());
 466         final String keyPreference = this.getString(R.string.weather_preferences_refresh_interval_key);
 467         final String refresh = sharedPreferences.getString(
 468                         keyPreference,
 469                         this.getResources().getStringArray(R.array.weather_preferences_refresh_interval)[0]);
 470         final Date currentTime = new Date();
 471         if (((currentTime.getTime() - lastUpdate.getTime())) < Long.valueOf(refresh)) {
 472                 return true;
 473         }
 474
 475         return false;
 476     }
 477
 478     private class CurrentTask extends AsyncTask<Object, Void, Current> {
 479         // Store the context passed to the AsyncTask when the system instantiates it.
 480         private final Context localContext;
 481         final CustomHTTPClient HTTPClient;
 482         final ServiceCurrentParser weatherService;
 483
 484         public CurrentTask(final Context context, final CustomHTTPClient HTTPClient,
 485                         final ServiceCurrentParser weatherService) {
 486                 this.localContext = context;
 487             this.HTTPClient = HTTPClient;
 488             this.weatherService = weatherService;
 489         }
 490
 491         @Override
 492         protected Current doInBackground(final Object... params) {
 493                 final double latitude = (Double) params[0];
 494             final double longitude = (Double) params[1];
 495
 496             Current current = null;
 497             try {
 498                 current = this.doInBackgroundThrowable(latitude, longitude);
 499             } catch (final JsonParseException e) {
 500                 Log.e(TAG, "CurrentTask doInBackground exception: ", e);
 501             } catch (final ClientProtocolException e) {
 502                 Log.e(TAG, "CurrentTask doInBackground exception: ", e);
 503             } catch (final MalformedURLException e) {
 504                 Log.e(TAG, "CurrentTask doInBackground exception: ", e);
 505             } catch (final URISyntaxException e) {
 506                 Log.e(TAG, "CurrentTask doInBackground exception: ", e);
 507             } catch (final IOException e) {
 508                 // logger infrastructure swallows UnknownHostException :/
 509                 Log.e(TAG, "CurrentTask doInBackground exception: " + e.getMessage(), e);
 510             } finally {
 511                 HTTPClient.close();
 512             }
 513
 514             return current;
 515         }
 516
 517         private Current doInBackgroundThrowable(final double latitude, final double longitude)
 518                         throws URISyntaxException, ClientProtocolException, JsonParseException, IOException {
 519
 520                 final String APIVersion = localContext.getResources().getString(R.string.api_version);
 521             final String urlAPI = localContext.getResources().getString(R.string.uri_api_weather_today);
 522             final String url = weatherService.createURIAPICurrent(urlAPI, APIVersion, latitude, longitude);
 523             final String urlWithoutCache = url.concat("&time=" + System.currentTimeMillis());
 524             final String jsonData = HTTPClient.retrieveDataAsString(new URL(urlWithoutCache));
 525
 526             return weatherService.retrieveCurrentFromJPOS(jsonData);
 527         }
 528
 529         @Override
 530         protected void onPostExecute(final Current current) {
 531
 532             // Call updateUI on the UI thread.
 533             final Intent currentData = new Intent("name.gumartinm.weather.information.UPDATECURRENT");
 534             currentData.putExtra("current", current);
 535             LocalBroadcastManager.getInstance(this.localContext).sendBroadcastSync(currentData);
 536         }
 537     }
 538 }