support for Belgium

git-svn-id: https://public-transport-enabler.googlecode.com/svn/trunk@108 0924bc21-9374-b0fa-ee44-9ff1593b38f0
This commit is contained in:
andreas.schildbach 2010-08-26 16:45:54 +00:00
parent 6df40b5f95
commit 74ec34e78f
2 changed files with 253 additions and 0 deletions

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@ -161,6 +161,18 @@ public final class ParserUtils
} }
} }
public static Date parseDateSlash(final String str)
{
try
{
return new SimpleDateFormat("dd/MM/yy").parse(str);
}
catch (final ParseException x)
{
throw new RuntimeException(x);
}
}
public static Date parseTime(final String str) public static Date parseTime(final String str)
{ {
try try

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@ -0,0 +1,241 @@
package de.schildbach.pte;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import de.schildbach.pte.QueryDeparturesResult.Status;
public class SncbProvider implements NetworkProvider
{
private static final long PARSER_DAY_ROLLOVER_THRESHOLD_MS = 12 * 60 * 60 * 1000;
public boolean hasCapabilities(final Capability... capabilities)
{
throw new UnsupportedOperationException();
}
public List<String> autoCompleteStationName(final CharSequence constraint) throws IOException
{
throw new UnsupportedOperationException();
}
public List<Station> nearbyStations(final double lat, final double lon, final int maxDistance, final int maxStations) throws IOException
{
throw new UnsupportedOperationException();
}
public StationLocationResult stationLocation(final String stationId) throws IOException
{
throw new UnsupportedOperationException();
}
public QueryConnectionsResult queryConnections(final LocationType fromType, final String from, final LocationType viaType, final String via,
final LocationType toType, final String to, final Date date, final boolean dep) throws IOException
{
throw new UnsupportedOperationException();
}
public QueryConnectionsResult queryMoreConnections(final String uri) throws IOException
{
throw new UnsupportedOperationException();
}
public GetConnectionDetailsResult getConnectionDetails(final String connectionUri) throws IOException
{
throw new UnsupportedOperationException();
}
public String departuresQueryUri(final String stationId, final int maxDepartures)
{
final StringBuilder uri = new StringBuilder();
uri.append("http://hari.b-rail.be/hari3/webserver1/bin/stboard.exe/dox");
uri.append("?input=").append(stationId);
uri.append("&boardType=dep");
uri.append("&maxJourneys=").append(maxDepartures != 0 ? maxDepartures : 50); // maximum taken from SNCB site
uri.append("&productsFilter=1:1111111111111111");
uri.append("&start=yes");
return uri.toString();
}
private static final Pattern P_DEPARTURES_HEAD_COARSE = Pattern.compile(".*?" //
+ "(?:" //
+ "<div id=\"hfs_content\">\r\n" //
+ "<p class=\"qs\">\r\n(.*?)\r\n</p>\r\n" // head
+ "(.*?)\r\n</div>" // departures
+ "|(Eingabe kann nicht interpretiert)|(Verbindung zum Server konnte leider nicht hergestellt werden))" //
+ ".*?", Pattern.DOTALL);
private static final Pattern P_DEPARTURES_HEAD_FINE = Pattern.compile("" //
+ "<strong>(.*?)</strong><br />\r\n" // location
+ "Abfahrt (\\d{1,2}:\\d{2}),\r\n" // time
+ "(\\d{2}/\\d{2}/\\d{2})" // date
, Pattern.DOTALL);
private static final Pattern P_DEPARTURES_COARSE = Pattern.compile("<p class=\"journey\">\r\n(.*?)</p>", Pattern.DOTALL);
private static final Pattern P_DEPARTURES_FINE = Pattern.compile(".*?" //
+ "<strong>(.*?)</strong>.*?" // line
+ "&gt;&gt;\r\n" //
+ "(.*?)\r\n" // destination
+ "<br />\r\n" //
+ "<strong>(\\d{1,2}:\\d{2})</strong>\r\n" // time
+ "(?:<span class=\"delay\">([+-]?\\d+|Ausfall)</span>\r\n)?" // delay
, Pattern.DOTALL);
public QueryDeparturesResult queryDepartures(final String uri) throws IOException
{
final CharSequence page = ParserUtils.scrape(uri);
// parse page
final Matcher mHeadCoarse = P_DEPARTURES_HEAD_COARSE.matcher(page);
if (mHeadCoarse.matches())
{
// messages
if (mHeadCoarse.group(3) != null)
return new QueryDeparturesResult(uri, Status.INVALID_STATION);
else if (mHeadCoarse.group(4) != null)
return new QueryDeparturesResult(uri, Status.SERVICE_DOWN);
final Matcher mHeadFine = P_DEPARTURES_HEAD_FINE.matcher(mHeadCoarse.group(1));
if (mHeadFine.matches())
{
final String location = ParserUtils.resolveEntities(mHeadFine.group(1));
final Date currentTime = ParserUtils.joinDateTime(ParserUtils.parseDateSlash(mHeadFine.group(3)), ParserUtils.parseTime(mHeadFine
.group(2)));
final List<Departure> departures = new ArrayList<Departure>(8);
final Matcher mDepCoarse = P_DEPARTURES_COARSE.matcher(mHeadCoarse.group(2));
while (mDepCoarse.find())
{
final Matcher mDepFine = P_DEPARTURES_FINE.matcher(mDepCoarse.group(1));
if (mDepFine.matches())
{
final String line = normalizeLine(ParserUtils.resolveEntities(mDepFine.group(1)));
final String destination = ParserUtils.resolveEntities(mDepFine.group(2));
final Calendar current = new GregorianCalendar();
current.setTime(currentTime);
final Calendar parsed = new GregorianCalendar();
parsed.setTime(ParserUtils.parseTime(mDepFine.group(3)));
parsed.set(Calendar.YEAR, current.get(Calendar.YEAR));
parsed.set(Calendar.MONTH, current.get(Calendar.MONTH));
parsed.set(Calendar.DAY_OF_MONTH, current.get(Calendar.DAY_OF_MONTH));
if (ParserUtils.timeDiff(parsed.getTime(), currentTime) < -PARSER_DAY_ROLLOVER_THRESHOLD_MS)
parsed.add(Calendar.DAY_OF_MONTH, 1);
mDepFine.group(4); // TODO delay
final Departure dep = new Departure(parsed.getTime(), line, line != null ? LINES.get(line.charAt(0)) : null, 0, destination);
if (!departures.contains(dep))
departures.add(dep);
}
else
{
throw new IllegalArgumentException("cannot parse '" + mDepCoarse.group(1) + "' on " + uri);
}
}
return new QueryDeparturesResult(uri, 0, location, currentTime, departures);
}
else
{
throw new IllegalArgumentException("cannot parse '" + mHeadCoarse.group(1) + "' on " + uri);
}
}
else
{
throw new IllegalArgumentException("cannot parse '" + page + "' on " + uri);
}
}
private static final Pattern P_NORMALIZE_LINE = Pattern.compile("([A-Za-zÄÖÜäöüßáàâéèêíìîóòôúùû]+)[\\s-]*(.*)");
private static String normalizeLine(final String line)
{
if (line == null || line.length() == 0)
return null;
final Matcher m = P_NORMALIZE_LINE.matcher(line);
if (m.matches())
{
final String type = m.group(1);
final String number = m.group(2);
final char normalizedType = normalizeType(type);
if (normalizedType != 0)
return normalizedType + type + number;
throw new IllegalStateException("cannot normalize type " + type + " number " + number + " line " + line);
}
throw new IllegalStateException("cannot normalize line " + line);
}
private static char normalizeType(final String type)
{
final String ucType = type.toUpperCase();
if (ucType.equals("ICE")) // InterCityExpress
return 'I';
if (ucType.equals("IC")) // InterCity
return 'I';
if (ucType.equals("EST")) // Eurostar Frankreich
return 'I';
if (ucType.equals("THA")) // Thalys
return 'I';
if (ucType.equals("TGV")) // Train à Grande Vitesse
return 'I';
if (ucType.equals("INT")) // Zürich-Brüssel
return 'I';
if (ucType.equals("IR"))
return 'R';
if (ucType.equals("L"))
return 'R';
if (ucType.equals("P"))
return 'R';
if (ucType.equals("CR"))
return 'R';
if (ucType.equals("ICT")) // Brügge
return 'R';
if (ucType.equals("TRN")) // Mons
return 'R';
if (ucType.equals("MÉT"))
return 'U';
if (ucType.equals("TRA"))
return 'T';
if (ucType.equals("BUS"))
return 'B';
return 0;
}
private static final Map<Character, int[]> LINES = new HashMap<Character, int[]>();
static
{
LINES.put('I', new int[] { Color.WHITE, Color.RED, Color.RED });
LINES.put('R', new int[] { Color.GRAY, Color.WHITE });
LINES.put('S', new int[] { Color.parseColor("#006e34"), Color.WHITE });
LINES.put('U', new int[] { Color.parseColor("#003090"), Color.WHITE });
LINES.put('T', new int[] { Color.parseColor("#cc0000"), Color.WHITE });
LINES.put('B', new int[] { Color.parseColor("#993399"), Color.WHITE });
LINES.put('F', new int[] { Color.BLUE, Color.WHITE });
LINES.put('?', new int[] { Color.DKGRAY, Color.WHITE });
}
public int[] lineColors(final String line)
{
return LINES.get(line.charAt(0));
}
}