git.gumartinm.name Git - JavaForFun/blob

   1 package de.example.exampletdd.fragment.current;
   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.Calendar;
  12 import java.util.Date;
  13 import java.util.Locale;
  14
  15 import org.apache.http.client.ClientProtocolException;
  16
  17 import android.app.DialogFragment;
  18 import android.app.ListFragment;
  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.util.Log;
  27 import android.widget.ListView;
  28
  29 import com.fasterxml.jackson.core.JsonParseException;
  30
  31 import de.example.exampletdd.R;
  32 import de.example.exampletdd.fragment.ErrorDialogFragment;
  33 import de.example.exampletdd.fragment.ProgressDialogFragment;
  34 import de.example.exampletdd.fragment.overview.IconsList;
  35 import de.example.exampletdd.httpclient.CustomHTTPClient;
  36 import de.example.exampletdd.model.GeocodingData;
  37 import de.example.exampletdd.model.currentweather.CurrentWeatherData;
  38 import de.example.exampletdd.parser.IJPOSWeatherParser;
  39 import de.example.exampletdd.parser.JPOSWeatherParser;
  40 import de.example.exampletdd.service.WeatherServiceParser;
  41 import de.example.exampletdd.service.WeatherServicePersistenceFile;
  42
  43 public class WeatherInformationCurrentDataFragment extends ListFragment {
  44     private boolean mIsFahrenheit;
  45     private WeatherServicePersistenceFile mWeatherServicePersistenceFile;
  46
  47     @Override
  48     public void onCreate(final Bundle savedInstanceState) {
  49         super.onCreate(savedInstanceState);
  50
  51         this.mWeatherServicePersistenceFile = new WeatherServicePersistenceFile(this.getActivity());
  52         this.mWeatherServicePersistenceFile.removeCurrentWeatherData();
  53     }
  54
  55     @Override
  56     public void onActivityCreated(final Bundle savedInstanceState) {
  57         super.onActivityCreated(savedInstanceState);
  58
  59         final ListView listWeatherView = this.getListView();
  60         listWeatherView.setChoiceMode(ListView.CHOICE_MODE_NONE);
  61
  62         if (savedInstanceState != null) {
  63             // Restore state
  64             final CurrentWeatherData currentWeatherData = (CurrentWeatherData) savedInstanceState
  65                     .getSerializable("CurrentWeatherData");
  66
  67             if (currentWeatherData != null) {
  68                 try {
  69                     this.mWeatherServicePersistenceFile.storeCurrentWeatherData(currentWeatherData);
  70                 } catch (final IOException e) {
  71                     final DialogFragment newFragment = ErrorDialogFragment
  72                             .newInstance(R.string.error_dialog_generic_error);
  73                     newFragment.show(this.getFragmentManager(), "errorDialog");
  74                 }
  75             }
  76         }
  77
  78         this.setHasOptionsMenu(false);
  79
  80         this.setEmptyText("No data available");
  81
  82         this.setListShownNoAnimation(false);
  83     }
  84
  85     @Override
  86     public void onResume() {
  87         super.onResume();
  88
  89         final SharedPreferences sharedPreferences = PreferenceManager
  90                 .getDefaultSharedPreferences(this.getActivity());
  91
  92         // 1. Update units of measurement.
  93         final String keyPreference = this.getResources().getString(
  94                 R.string.weather_preferences_units_key);
  95         final String unitsPreferenceValue = sharedPreferences.getString(keyPreference, "");
  96         final String celsius = this.getResources().getString(
  97                 R.string.weather_preferences_units_celsius);
  98         if (unitsPreferenceValue.equals(celsius)) {
  99             this.mIsFahrenheit = false;
 100         } else {
 101             this.mIsFahrenheit = true;
 102         }
 103
 104         // 2. Try to restore old information
 105         final CurrentWeatherData currentWeatherData = this.mWeatherServicePersistenceFile
 106                 .getCurrentWeatherData();
 107         if (currentWeatherData != null) {
 108             this.updateCurrentWeatherData(currentWeatherData);
 109         } else {
 110             // 3. Try to update weather data on display with remote
 111             this.getRemoteCurrentWeatherInformation();
 112         }
 113     }
 114
 115     @Override
 116     public void onSaveInstanceState(final Bundle savedInstanceState) {
 117
 118         // Save state
 119         final CurrentWeatherData currentWeatherData = this.mWeatherServicePersistenceFile
 120                 .getCurrentWeatherData();
 121
 122         if (currentWeatherData != null) {
 123             savedInstanceState.putSerializable("CurrentWeatherData", currentWeatherData);
 124         }
 125
 126         super.onSaveInstanceState(savedInstanceState);
 127     }
 128
 129
 130     public void updateCurrentWeatherData(final CurrentWeatherData currentWeatherData) {
 131         final DecimalFormat tempFormatter = (DecimalFormat) NumberFormat.getNumberInstance(Locale.US);
 132         tempFormatter.applyPattern("#####.#####");
 133         final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss Z", Locale.US);
 134
 135         final double tempUnits = this.mIsFahrenheit ? 0 : 273.15;
 136         final String symbol = this.mIsFahrenheit ? "ºF" : "ºC";
 137
 138         final int[] layouts = new int[3];
 139         layouts[0] = R.layout.weather_current_data_entry_first;
 140         layouts[1] = R.layout.weather_current_data_entry_second;
 141         layouts[2] = R.layout.weather_current_data_entry_fifth;
 142         final WeatherCurrentDataAdapter adapter = new WeatherCurrentDataAdapter(this.getActivity(),
 143                 layouts);
 144
 145
 146         String tempMax = "";
 147         if (currentWeatherData.getMain().getTemp_max() != null) {
 148             double conversion = (Double) currentWeatherData.getMain().getTemp_max();
 149             conversion = conversion - tempUnits;
 150             tempMax = tempFormatter.format(conversion) + symbol;
 151         }
 152         String tempMin = "";
 153         if (currentWeatherData.getMain().getTemp_min() != null) {
 154             double conversion = (Double) currentWeatherData.getMain().getTemp_min();
 155             conversion = conversion - tempUnits;
 156             tempMin = tempFormatter.format(conversion) + symbol;
 157         }
 158         Bitmap picture;
 159         if ((currentWeatherData.getWeather().size() > 0)
 160                 && (currentWeatherData.getWeather().get(0).getIcon() != null)
 161                 && (IconsList.getIcon(currentWeatherData.getWeather().get(0).getIcon()) != null)) {
 162             final String icon = currentWeatherData.getWeather().get(0).getIcon();
 163             picture = BitmapFactory.decodeResource(this.getResources(), IconsList.getIcon(icon)
 164                     .getResourceDrawable());
 165         } else {
 166             picture = BitmapFactory.decodeResource(this.getResources(),
 167                     R.drawable.weather_severe_alert);
 168         }
 169         final WeatherCurrentDataEntryFirst entryFirst = new WeatherCurrentDataEntryFirst(tempMax,
 170                 tempMin, picture);
 171         adapter.add(entryFirst);
 172
 173         String description = "no description available";
 174         if (currentWeatherData.getWeather().size() > 0) {
 175             description = currentWeatherData.getWeather().get(0).getDescription();
 176         }
 177         final WeatherCurrentDataEntrySecond entrySecond = new WeatherCurrentDataEntrySecond(
 178                 description);
 179         adapter.add(entrySecond);
 180
 181         String humidityValue = "";
 182         if ((currentWeatherData.getMain() != null)
 183                 && (currentWeatherData.getMain().getHumidity() != null)) {
 184             final double conversion = (Double) currentWeatherData.getMain().getHumidity();
 185             humidityValue = tempFormatter.format(conversion);
 186         }
 187         String pressureValue = "";
 188         if ((currentWeatherData.getMain() != null)
 189                 && (currentWeatherData.getMain().getPressure() != null)) {
 190             final double conversion = (Double) currentWeatherData.getMain().getPressure();
 191             pressureValue = tempFormatter.format(conversion);
 192         }
 193         String windValue = "";
 194         if ((currentWeatherData.getWind() != null)
 195                 && (currentWeatherData.getWind().getSpeed() != null)) {
 196             final double conversion = (Double) currentWeatherData.getWind().getSpeed();
 197             windValue = tempFormatter.format(conversion);
 198         }
 199         String rainValue = "";
 200         if ((currentWeatherData.getRain() != null)
 201                 && (currentWeatherData.getRain().get3h() != null)) {
 202             final double conversion = (Double) currentWeatherData.getRain().get3h();
 203             rainValue = tempFormatter.format(conversion);
 204         }
 205         String cloudsValue = "";
 206         if ((currentWeatherData.getClouds() != null)
 207                 && (currentWeatherData.getClouds().getAll() != null)) {
 208             final double conversion = (Double) currentWeatherData.getClouds().getAll();
 209             cloudsValue = tempFormatter.format(conversion);
 210         }
 211         String snowValue = "";
 212         if ((currentWeatherData.getSnow() != null)
 213                 && (currentWeatherData.getSnow().get3h() != null)) {
 214             final double conversion = (Double) currentWeatherData.getSnow().get3h();
 215             snowValue = tempFormatter.format(conversion);
 216         }
 217         String feelsLike = "";
 218         if (currentWeatherData.getMain().getTemp() != null) {
 219             double conversion = (Double) currentWeatherData.getMain().getTemp();
 220             conversion = conversion - tempUnits;
 221             feelsLike = tempFormatter.format(conversion);
 222         }
 223         String sunRiseTime = "";
 224         if (currentWeatherData.getSys().getSunrise() != null) {
 225             final long unixTime = (Long) currentWeatherData.getSys().getSunrise();
 226             final Date unixDate = new Date(unixTime * 1000L);
 227             sunRiseTime = dateFormat.format(unixDate);
 228         }
 229         String sunSetTime = "";
 230         if (currentWeatherData.getSys().getSunset() != null) {
 231             final long unixTime = (Long) currentWeatherData.getSys().getSunset();
 232             final Date unixDate = new Date(unixTime * 1000L);
 233             sunSetTime = dateFormat.format(unixDate);
 234         }
 235         final WeatherCurrentDataEntryFifth entryFifth = new WeatherCurrentDataEntryFifth(
 236                 sunRiseTime, sunSetTime, humidityValue, pressureValue, windValue, rainValue,
 237                 feelsLike, symbol, snowValue, cloudsValue);
 238         adapter.add(entryFifth);
 239
 240
 241         this.setListAdapter(adapter);
 242     }
 243
 244     public class CurrentWeatherTask extends AsyncTask<Object, Void, CurrentWeatherData> {
 245         private static final String TAG = "WeatherTask";
 246         private final CustomHTTPClient weatherHTTPClient;
 247         private final WeatherServiceParser weatherService;
 248         private final DialogFragment newFragment;
 249
 250         public CurrentWeatherTask(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                     WeatherInformationCurrentDataFragment.this
 257                     .getString(R.string.progress_dialog_generic_message));
 258         }
 259
 260         @Override
 261         protected void onPreExecute() {
 262             this.newFragment.show(WeatherInformationCurrentDataFragment.this.getActivity()
 263                     .getFragmentManager(), "progressDialog");
 264         }
 265
 266         @Override
 267         protected CurrentWeatherData doInBackground(final Object... params) {
 268             CurrentWeatherData currentWeatherData = null;
 269
 270             try {
 271                 currentWeatherData = 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 currentWeatherData;
 288         }
 289
 290         @Override
 291         protected void onPostExecute(final CurrentWeatherData currentWeatherData) {
 292             this.weatherHTTPClient.close();
 293
 294             this.newFragment.dismiss();
 295
 296             if (currentWeatherData != null) {
 297                 try {
 298                     this.onPostExecuteThrowable(currentWeatherData);
 299                 } catch (final IOException e) {
 300                     WeatherInformationCurrentDataFragment.this.setListShown(true);
 301                     Log.e(TAG, "WeatherTask onPostExecute exception: ", e);
 302                     final DialogFragment newFragment = ErrorDialogFragment
 303                             .newInstance(R.string.error_dialog_generic_error);
 304                     newFragment.show(
 305                             WeatherInformationCurrentDataFragment.this.getFragmentManager(),
 306                             "errorDialog");
 307                 }
 308             } else {
 309                 WeatherInformationCurrentDataFragment.this.setListShown(true);
 310                 final DialogFragment newFragment = ErrorDialogFragment
 311                         .newInstance(R.string.error_dialog_generic_error);
 312                 newFragment.show(WeatherInformationCurrentDataFragment.this.getFragmentManager(),
 313                         "errorDialog");
 314             }
 315         }
 316
 317         @Override
 318         protected void onCancelled(final CurrentWeatherData currentWeatherData) {
 319             this.weatherHTTPClient.close();
 320
 321             final DialogFragment newFragment = ErrorDialogFragment
 322                     .newInstance(R.string.error_dialog_connection_tiemout);
 323             newFragment.show(WeatherInformationCurrentDataFragment.this.getFragmentManager(),
 324                     "errorDialog");
 325         }
 326
 327         private CurrentWeatherData doInBackgroundThrowable(final Object... params)
 328                 throws ClientProtocolException, MalformedURLException, URISyntaxException,
 329                 JsonParseException, IOException {
 330
 331             // 1. Coordinates
 332             final GeocodingData geocodingData = (GeocodingData) params[0];
 333
 334             final String APIVersion = WeatherInformationCurrentDataFragment.this.getResources()
 335                     .getString(R.string.api_version);
 336
 337             // 2. Today
 338             final String urlAPI = WeatherInformationCurrentDataFragment.this.getResources()
 339                     .getString(R.string.uri_api_weather_today);
 340             final String url = this.weatherService.createURIAPITodayWeather(urlAPI, APIVersion,
 341                     geocodingData.getLatitude(), geocodingData.getLongitude());
 342             final String jsonData = this.weatherHTTPClient.retrieveDataAsString(new URL(url));
 343             final CurrentWeatherData currentWeatherData = this.weatherService
 344                     .retrieveCurrentWeatherDataFromJPOS(jsonData);
 345             final Calendar now = Calendar.getInstance();
 346             currentWeatherData.setDate(now.getTime());
 347
 348
 349             return currentWeatherData;
 350         }
 351
 352         private void onPostExecuteThrowable(final CurrentWeatherData currentWeatherData)
 353                 throws FileNotFoundException, IOException {
 354
 355             WeatherInformationCurrentDataFragment.this.mWeatherServicePersistenceFile
 356             .storeCurrentWeatherData(currentWeatherData);
 357
 358             WeatherInformationCurrentDataFragment.this.updateCurrentWeatherData(currentWeatherData);
 359         }
 360     }
 361
 362     private void getRemoteCurrentWeatherInformation() {
 363
 364         final GeocodingData geocodingData = this.mWeatherServicePersistenceFile.getGeocodingData();
 365
 366         if (geocodingData != null) {
 367             final IJPOSWeatherParser JPOSWeatherParser = new JPOSWeatherParser();
 368             final WeatherServiceParser weatherService = new WeatherServiceParser(JPOSWeatherParser);
 369             final AndroidHttpClient httpClient = AndroidHttpClient
 370                     .newInstance("Android Weather Information Agent");
 371             final CustomHTTPClient HTTPweatherClient = new CustomHTTPClient(httpClient);
 372
 373             final CurrentWeatherTask weatherTask = new CurrentWeatherTask(HTTPweatherClient,
 374                     weatherService);
 375
 376             weatherTask.execute(geocodingData);
 377         }
 378     }
 379 }