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support for Belgium
git-svn-id: https://public-transport-enabler.googlecode.com/svn/trunk@108 0924bc21-9374-b0fa-ee44-9ff1593b38f0
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@ -161,6 +161,18 @@ public final class ParserUtils
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}
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}
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public static Date parseDateSlash(final String str)
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{
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try
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{
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return new SimpleDateFormat("dd/MM/yy").parse(str);
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}
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catch (final ParseException x)
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{
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throw new RuntimeException(x);
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}
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}
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public static Date parseTime(final String str)
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{
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try
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241
src/de/schildbach/pte/SncbProvider.java
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241
src/de/schildbach/pte/SncbProvider.java
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@ -0,0 +1,241 @@
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package de.schildbach.pte;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.GregorianCalendar;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import de.schildbach.pte.QueryDeparturesResult.Status;
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public class SncbProvider implements NetworkProvider
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{
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private static final long PARSER_DAY_ROLLOVER_THRESHOLD_MS = 12 * 60 * 60 * 1000;
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public boolean hasCapabilities(final Capability... capabilities)
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{
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throw new UnsupportedOperationException();
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}
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public List<String> autoCompleteStationName(final CharSequence constraint) throws IOException
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{
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throw new UnsupportedOperationException();
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}
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public List<Station> nearbyStations(final double lat, final double lon, final int maxDistance, final int maxStations) throws IOException
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{
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throw new UnsupportedOperationException();
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}
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public StationLocationResult stationLocation(final String stationId) throws IOException
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{
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throw new UnsupportedOperationException();
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}
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public QueryConnectionsResult queryConnections(final LocationType fromType, final String from, final LocationType viaType, final String via,
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final LocationType toType, final String to, final Date date, final boolean dep) throws IOException
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{
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throw new UnsupportedOperationException();
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}
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public QueryConnectionsResult queryMoreConnections(final String uri) throws IOException
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{
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throw new UnsupportedOperationException();
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}
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public GetConnectionDetailsResult getConnectionDetails(final String connectionUri) throws IOException
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{
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throw new UnsupportedOperationException();
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}
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public String departuresQueryUri(final String stationId, final int maxDepartures)
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{
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final StringBuilder uri = new StringBuilder();
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uri.append("http://hari.b-rail.be/hari3/webserver1/bin/stboard.exe/dox");
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uri.append("?input=").append(stationId);
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uri.append("&boardType=dep");
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uri.append("&maxJourneys=").append(maxDepartures != 0 ? maxDepartures : 50); // maximum taken from SNCB site
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uri.append("&productsFilter=1:1111111111111111");
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uri.append("&start=yes");
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return uri.toString();
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}
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private static final Pattern P_DEPARTURES_HEAD_COARSE = Pattern.compile(".*?" //
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+ "(?:" //
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+ "<div id=\"hfs_content\">\r\n" //
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+ "<p class=\"qs\">\r\n(.*?)\r\n</p>\r\n" // head
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+ "(.*?)\r\n</div>" // departures
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+ "|(Eingabe kann nicht interpretiert)|(Verbindung zum Server konnte leider nicht hergestellt werden))" //
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+ ".*?", Pattern.DOTALL);
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private static final Pattern P_DEPARTURES_HEAD_FINE = Pattern.compile("" //
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+ "<strong>(.*?)</strong><br />\r\n" // location
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+ "Abfahrt (\\d{1,2}:\\d{2}),\r\n" // time
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+ "(\\d{2}/\\d{2}/\\d{2})" // date
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, Pattern.DOTALL);
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private static final Pattern P_DEPARTURES_COARSE = Pattern.compile("<p class=\"journey\">\r\n(.*?)</p>", Pattern.DOTALL);
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private static final Pattern P_DEPARTURES_FINE = Pattern.compile(".*?" //
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+ "<strong>(.*?)</strong>.*?" // line
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+ ">>\r\n" //
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+ "(.*?)\r\n" // destination
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+ "<br />\r\n" //
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+ "<strong>(\\d{1,2}:\\d{2})</strong>\r\n" // time
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+ "(?:<span class=\"delay\">([+-]?\\d+|Ausfall)</span>\r\n)?" // delay
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, Pattern.DOTALL);
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public QueryDeparturesResult queryDepartures(final String uri) throws IOException
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{
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final CharSequence page = ParserUtils.scrape(uri);
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// parse page
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final Matcher mHeadCoarse = P_DEPARTURES_HEAD_COARSE.matcher(page);
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if (mHeadCoarse.matches())
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{
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// messages
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if (mHeadCoarse.group(3) != null)
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return new QueryDeparturesResult(uri, Status.INVALID_STATION);
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else if (mHeadCoarse.group(4) != null)
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return new QueryDeparturesResult(uri, Status.SERVICE_DOWN);
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final Matcher mHeadFine = P_DEPARTURES_HEAD_FINE.matcher(mHeadCoarse.group(1));
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if (mHeadFine.matches())
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{
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final String location = ParserUtils.resolveEntities(mHeadFine.group(1));
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final Date currentTime = ParserUtils.joinDateTime(ParserUtils.parseDateSlash(mHeadFine.group(3)), ParserUtils.parseTime(mHeadFine
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.group(2)));
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final List<Departure> departures = new ArrayList<Departure>(8);
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final Matcher mDepCoarse = P_DEPARTURES_COARSE.matcher(mHeadCoarse.group(2));
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while (mDepCoarse.find())
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{
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final Matcher mDepFine = P_DEPARTURES_FINE.matcher(mDepCoarse.group(1));
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if (mDepFine.matches())
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{
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final String line = normalizeLine(ParserUtils.resolveEntities(mDepFine.group(1)));
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final String destination = ParserUtils.resolveEntities(mDepFine.group(2));
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final Calendar current = new GregorianCalendar();
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current.setTime(currentTime);
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final Calendar parsed = new GregorianCalendar();
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parsed.setTime(ParserUtils.parseTime(mDepFine.group(3)));
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parsed.set(Calendar.YEAR, current.get(Calendar.YEAR));
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parsed.set(Calendar.MONTH, current.get(Calendar.MONTH));
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parsed.set(Calendar.DAY_OF_MONTH, current.get(Calendar.DAY_OF_MONTH));
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if (ParserUtils.timeDiff(parsed.getTime(), currentTime) < -PARSER_DAY_ROLLOVER_THRESHOLD_MS)
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parsed.add(Calendar.DAY_OF_MONTH, 1);
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mDepFine.group(4); // TODO delay
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final Departure dep = new Departure(parsed.getTime(), line, line != null ? LINES.get(line.charAt(0)) : null, 0, destination);
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if (!departures.contains(dep))
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departures.add(dep);
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}
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else
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{
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throw new IllegalArgumentException("cannot parse '" + mDepCoarse.group(1) + "' on " + uri);
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}
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}
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return new QueryDeparturesResult(uri, 0, location, currentTime, departures);
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}
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else
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{
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throw new IllegalArgumentException("cannot parse '" + mHeadCoarse.group(1) + "' on " + uri);
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}
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}
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else
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{
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throw new IllegalArgumentException("cannot parse '" + page + "' on " + uri);
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}
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}
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private static final Pattern P_NORMALIZE_LINE = Pattern.compile("([A-Za-zÄÖÜäöüßáàâéèêíìîóòôúùû]+)[\\s-]*(.*)");
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private static String normalizeLine(final String line)
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{
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if (line == null || line.length() == 0)
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return null;
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final Matcher m = P_NORMALIZE_LINE.matcher(line);
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if (m.matches())
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{
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final String type = m.group(1);
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final String number = m.group(2);
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final char normalizedType = normalizeType(type);
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if (normalizedType != 0)
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return normalizedType + type + number;
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throw new IllegalStateException("cannot normalize type " + type + " number " + number + " line " + line);
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}
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throw new IllegalStateException("cannot normalize line " + line);
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}
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private static char normalizeType(final String type)
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{
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final String ucType = type.toUpperCase();
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if (ucType.equals("ICE")) // InterCityExpress
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return 'I';
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if (ucType.equals("IC")) // InterCity
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return 'I';
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if (ucType.equals("EST")) // Eurostar Frankreich
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return 'I';
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if (ucType.equals("THA")) // Thalys
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return 'I';
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if (ucType.equals("TGV")) // Train à Grande Vitesse
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return 'I';
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if (ucType.equals("INT")) // Zürich-Brüssel
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return 'I';
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if (ucType.equals("IR"))
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return 'R';
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if (ucType.equals("L"))
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return 'R';
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if (ucType.equals("P"))
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return 'R';
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if (ucType.equals("CR"))
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return 'R';
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if (ucType.equals("ICT")) // Brügge
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return 'R';
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if (ucType.equals("TRN")) // Mons
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return 'R';
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if (ucType.equals("MÉT"))
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return 'U';
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if (ucType.equals("TRA"))
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return 'T';
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if (ucType.equals("BUS"))
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return 'B';
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return 0;
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}
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private static final Map<Character, int[]> LINES = new HashMap<Character, int[]>();
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static
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{
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LINES.put('I', new int[] { Color.WHITE, Color.RED, Color.RED });
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LINES.put('R', new int[] { Color.GRAY, Color.WHITE });
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LINES.put('S', new int[] { Color.parseColor("#006e34"), Color.WHITE });
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LINES.put('U', new int[] { Color.parseColor("#003090"), Color.WHITE });
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LINES.put('T', new int[] { Color.parseColor("#cc0000"), Color.WHITE });
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LINES.put('B', new int[] { Color.parseColor("#993399"), Color.WHITE });
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LINES.put('F', new int[] { Color.BLUE, Color.WHITE });
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LINES.put('?', new int[] { Color.DKGRAY, Color.WHITE });
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}
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public int[] lineColors(final String line)
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{
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return LINES.get(line.charAt(0));
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}
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}
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