/*
* FoodWatcher
* presenting menue-data from HTML sources of the
* Studentenwerk Bremen
* see <http://www.studentenwerk.bremen.de/files/main_info/essen/plaene/essenplan.htm>
*
* contact me via <mtthsfrdrch@gmail.com> or <http://twitter.com/peacei>
*
*
* Copyright (C) 2010 Matthias Friedrich
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
* or see <http://www.gnu.org/licenses/>.
*/
package de.peacei.android.foodwatcher.parser;
import de.peacei.android.foodwatcher.data.Food;
import de.peacei.android.foodwatcher.data.Menu;
import java.util.Vector;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
*
* @author peacei
*/
public class BHVEssenParser extends BremenParser implements FoodParser{
private static BHVEssenParser instance = null;
public static BHVEssenParser parse() {
if(instance == null || instance.getMenu().getValuability() != Menu.VALUABLE)
instance = new BHVEssenParser();
return instance;
}
public static void erase() {
instance = null;
}
private BHVEssenParser() {
super("http://www.studentenwerk.bremen.de/files/main_info/essen/plaene/bhvessen.php");
if(valuability == Menu.VALUABLE) {
this.parseWeekNumber();
this.parseFood();
}
}
protected Food[] parse(String keyWord) {
try {
Food[] food = new Food[5];
int startIndex = html.indexOf(keyWord);
int endIndex = html.indexOf("</tr>", startIndex)-1;
int index = endIndex;
String htmlPart = html.substring(startIndex, endIndex);
startIndex = 10;
endIndex = startIndex;
String dishPerDay;
byte type;
byte extra;
Matcher matcher = null;
for (byte i=0; i<5; i++) {
type = Food.NO_TYPE;
extra = Food.NO_EXTRA;
startIndex = htmlPart.indexOf("<td", startIndex)+3;
endIndex = htmlPart.indexOf("</td>", startIndex);
dishPerDay = htmlPart.substring(startIndex-3, endIndex);
// Zeilenumbruch durch Leerzeichen ersetzen
dishPerDay=Pattern.compile("<br>").matcher(dishPerDay).
replaceAll(" ");
// Parsen der Kategorie
matcher = Pattern.compile("\\([VGSRFWL]\\)").matcher(dishPerDay);
if(matcher.find()) {
type = (byte) dishPerDay.charAt(matcher.start()+1);
dishPerDay = matcher.replaceAll("");
}
else {
matcher = Pattern.compile(
"(schwein\\.gif|Rind\\.gif|Vegetarisch\\.gif|Huhn\\.gif|" +
"fisch\\.gif|SunFlower\\.gif|=\" \"|Wild\\.gif|wild\\.gif|Lamm\\.gif|lamm\\.gif)").matcher(dishPerDay);
if(matcher.find()) {
char c = dishPerDay.charAt(matcher.start());
switch (c) {
case 'R': type = Food.BEEF; break;
case 'V': type = Food.VEGETARIAN; break;
case 'H': type = Food.POULTRY; break;
case 's': type = Food.PORK; break;
case 'f': type = Food.FISH; break;
case 'S': type = Food.VEGAN; break;
case '=': case 'w': case 'W': type = Food.GAME; break;
case 'l': case 'L': type = Food.LAMB; break;
default: type = Food.NO_TYPE;
}
dishPerDay = matcher.replaceAll("");
}
}
// Entfernen der HTML-Tags
dishPerDay=Pattern.compile("<[^>]+>").matcher(dishPerDay).
replaceAll("");
// Parsen und Entfernen der Tagessuppe bzw. des Desserts
matcher = Pattern.compile("Tagessuppe").matcher(dishPerDay);
if(matcher.find()) {
dishPerDay = matcher.replaceAll("");
extra = Food.SOUP;
}
else {
matcher = Pattern.compile("(Dessert|Tagesdessert)").matcher(dishPerDay);
if(matcher.find()) {
dishPerDay = matcher.replaceAll("");
extra = Food.DESSERT;
}
}
// Entfernen doppelter Leerzeichen
dishPerDay=Pattern.compile("\\s{2,}").matcher(dishPerDay).
replaceAll(" ");
// Entfernen eines Leerzeichens am Beginn
if(dishPerDay.charAt(0)==' ')
dishPerDay = dishPerDay.substring(1);
// Ersetzen des &-Zeichens
dishPerDay=Pattern.compile("\\s&\\s").matcher(dishPerDay).
replaceAll(" und ");
// Entfernen ungltiger Zeichen
dishPerDay=Pattern.compile("([*<>\\.*+#&]|nbsp;)+").matcher(dishPerDay).
replaceAll("");
if(dishPerDay.length()==0) dishPerDay = "Entfllt";
if(keyWord.charAt(0)=='V')
food[i] = new Food("Vegetarisch", dishPerDay, type, extra);
else if(keyWord.equals("EXTRA"))
food[i] = new Food("Extra", dishPerDay, type, extra);
else if(keyWord.equals("ESSEN 1"))
food[i] = new Food("Essen 1", dishPerDay, type, extra);
else if(keyWord.equals("ESSEN 2"))
food[i] = new Food("Essen 2", dishPerDay, type, extra);
}
htmlPart = html.substring(index+17, html.indexOf("</tr>", index+4));
startIndex = index+4;
endIndex = index+4;
StringBuffer price;
for(int i=0; i<5; i++) {
price = new StringBuffer();
for(int j=0; j<4; j++) {
startIndex = htmlPart.indexOf("<td ", endIndex);
endIndex = htmlPart.indexOf("</td>", startIndex);
switch(j) {
case 1: case 3:
matcher = Pattern.compile("\\d,\\d\\d").matcher(htmlPart.substring(startIndex, endIndex));
if(matcher.find()) {
price.append(matcher.group().trim());
price.append('');
}
else {
price.append("--");
}
break;
case 2:
price.append('/');
break;
default: break;
}
}
food[i].setPrice(price.toString());
}
return food;
} catch(Exception e) {
return null;
}
}
public void parseFood() {
food = new Vector<Food[]>(0);// new Food[2][5];
Food[] foodArr;
if((foodArr=parse("ESSEN 1"))!=null) food.add(foodArr);
if((foodArr=parse("ESSEN 2"))!=null) food.add(foodArr);
if((foodArr=parse("VEGETARISCH"))!=null) food.add(foodArr);
if((foodArr=parse("EXTRA"))!=null) food.add(foodArr);
if(food.size()==0) valuability = Menu.ERROR;
}
}
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