app/src/main/java/de/dhbwloe/campusapp/mensaplan/MensaplanManager.java

   1 package de.dhbwloe.campusapp.mensaplan;
   2
   3 import android.util.Log;
   4
   5 import java.io.UnsupportedEncodingException;
   6 import java.net.URLEncoder;
   7 import java.text.DateFormat;
   8 import java.text.NumberFormat;
   9 import java.text.ParseException;
  10 import java.text.SimpleDateFormat;
  11 import java.util.ArrayList;
  12 import java.util.Date;
  13 import java.util.List;
  14 import java.util.Locale;
  15 import java.util.regex.Matcher;
  16 import java.util.regex.Pattern;
  17
  18 import de.dhbwloe.campusapp.CampusAppContext;
  19 import de.dhbwloe.campusapp.network.XmlEntry;
  20 import de.dhbwloe.campusapp.network.XmlRequestHelper;
  21 import de.dhbwloe.campusapp.search.SearchIndices;
  22
  23 /**
  24  * Created by pk910 on 22.01.2016.
  25  */
  26 public class MensaplanManager extends XmlRequestHelper {
  27     private CampusAppContext AppContext;
  28     private boolean bRequestRunning = false;
  29     private ArrayList<MensaplanManagerInterface> aCallbackInterfaces = new ArrayList<MensaplanManagerInterface>();
  30
  31     public MensaplanManager(CampusAppContext context) {
  32         AppContext = context;
  33     }
  34
  35     public void performSynchronisation(MensaplanManagerInterface callback) {
  36         aCallbackInterfaces.add(callback);
  37         if(bRequestRunning)
  38             return;
  39
  40         bRequestRunning = true;
  41         String mensaplanUrl = "http://www.swfr.de/index.php?id=1400&type=98&tx_swfrspeiseplan_pi1[apiKey]=c3841e89a2c8c301b890723ecdb786ad&tx_swfrspeiseplan_pi1[ort]=677";
  42         requestXmlFromWeb(mensaplanUrl, "plan", "tagesplan");
  43     }
  44
  45     private long getTimeFromDateString(String timestamp) {
  46         // 01.03.2016
  47         if(timestamp == null)
  48             return 0;
  49         DateFormat df = new SimpleDateFormat("dd.MM.yyyy", Locale.ENGLISH);
  50         try {
  51             Date result =  df.parse(timestamp);
  52             return result.getTime()/1000;
  53         } catch (ParseException e) {
  54             return 0;
  55         }
  56     }
  57
  58     private int getPriceFromString(String pricestr) {
  59         // 2,90€( pro 100g)?
  60         if(pricestr == null)
  61             return 0;
  62         Pattern r = Pattern.compile("^([0-9,]+)€( pro [0-9]+[a-z]+)$");
  63         Matcher m = r.matcher(pricestr);
  64         if (m.find()) {
  65             NumberFormat nf = NumberFormat.getInstance(Locale.GERMAN);
  66             try {
  67                 Number result =  nf.parse(m.group(1));
  68                 return (int)(result.doubleValue()*100);
  69             } catch (ParseException e) {
  70                 return 0;
  71             }
  72         } else
  73             return 0;
  74     }
  75
  76     @Override
  77     protected void onXmlReceived(List<XmlEntry> entries) {
  78         ArrayList<SearchIndices> newIndices = new ArrayList<SearchIndices>();
  79
  80         Log.i("MPMSync", "Received Mensaplan XML");
  81         for(XmlEntry entry : entries) {
  82             Log.i("MPMSync", "Parse Tagesplan: "+entry.getAttribute("datum"));
  83             long plandate = getTimeFromDateString(entry.getAttribute("datum"));
  84             if(plandate == 0)
  85                 continue;
  86
  87             XmlEntry[] menues = XmlEntry.FindXmlEntriesByName(entry, "menue");
  88             for(XmlEntry menue : menues) {
  89                 XmlEntry centry;
  90                 String menuname = menue.getAttribute("art");
  91                 Log.i("MPMSync", "Parse menu "+menuname);
  92                 if(menuname == null) continue;
  93
  94                 String additional = menue.getAttribute("zusatz");
  95
  96                 centry = XmlEntry.FindXmlEntryByName(menue, "name");
  97                 String name = (centry == null ? null : centry.getValue());
  98
  99                 centry = XmlEntry.FindXmlEntryByName(menue, "nameMitUmbruch");
 100                 String nameHtml = (centry == null ? null : centry.getValue());
 101
 102                 centry = XmlEntry.FindXmlEntryByName(menue, "kennzeichnungen");
 103                 String notes = (centry == null ? null : centry.getValue());
 104
 105                 int priceArray[] = new int[4];
 106
 107                 centry = XmlEntry.FindXmlEntryByName(menue, "studierende");
 108                 priceArray[0] = (centry == null ? 0 : getPriceFromString(centry.getValue()));
 109                 centry = XmlEntry.FindXmlEntryByName(menue, "angestellte");
 110                 priceArray[1] = (centry == null ? 0 : getPriceFromString(centry.getValue()));
 111                 centry = XmlEntry.FindXmlEntryByName(menue, "gaeste");
 112                 priceArray[2] = (centry == null ? 0 : getPriceFromString(centry.getValue()));
 113                 centry = XmlEntry.FindXmlEntryByName(menue, "schueler");
 114                 priceArray[3] = (centry == null ? 0 : getPriceFromString(centry.getValue()));
 115
 116                 MensaTagesplan tagesplan = new MensaTagesplan(plandate, menuname, 0, name, nameHtml, additional, notes, priceArray[0], priceArray[1], priceArray[2], priceArray[3]);
 117                 tagesplan.calculateChkSum();
 118
 119                 AppContext.getDatabaseManager().updateMensaTagesplan(tagesplan);
 120
 121                 if(tagesplan.getIsNew(true)) {
 122                     SearchIndices indices = new SearchIndices("MensaTagesplan#"+tagesplan.getPlanDate()+"|"+tagesplan.getMenuName(), false);
 123                     indices.setUpdateTime(tagesplan.getPlanDate());
 124                     try {
 125                         indices.setTarget("#Mensa#showdate=" + tagesplan.getPlanDate()+"&showmenu=" + URLEncoder.encode(tagesplan.getMenuName(), "UTF-8"));
 126                     } catch (UnsupportedEncodingException e) {
 127                         indices.setTarget("#Mensa#showdate=" + tagesplan.getPlanDate());
 128                     }
 129                     indices.setTitle("Mensaplan " + tagesplan.getFormatedDate());
 130                     indices.setDescription(tagesplan.getMenuName() + ": " + tagesplan.getName());
 131                     indices.addKeyWord(tagesplan.getName());
 132                     indices.addKeyWord(tagesplan.getNotes());
 133                     newIndices.add(indices);
 134                 }
 135             }
 136         }
 137
 138         SearchIndices[] newIndicesArr = new SearchIndices[newIndices.size()];
 139         newIndicesArr = newIndices.toArray(newIndicesArr);
 140         AppContext.addSearchIndices(newIndicesArr);
 141
 142         for(MensaplanManagerInterface callback : aCallbackInterfaces) {
 143             callback.onMensaplanUpdateDone();
 144         }
 145         aCallbackInterfaces.clear();
 146         bRequestRunning = false;
 147     }
 148
 149     @Override
 150     protected void onXmlRequestFail(int statusCode, String errorMessage) {
 151         for(MensaplanManagerInterface callback : aCallbackInterfaces) {
 152             callback.onMensaplanUpdateFail("error " + statusCode + ": " + errorMessage);
 153         }
 154         aCallbackInterfaces.clear();
 155         bRequestRunning = false;
 156     }
 157 }