mirror of
https://gitlab.com/oeffi/public-transport-enabler.git
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0a77d3391f
git-svn-id: https://public-transport-enabler.googlecode.com/svn/trunk@344 0924bc21-9374-b0fa-ee44-9ff1593b38f0
330 lines
10 KiB
Java
330 lines
10 KiB
Java
/*
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* Copyright 2010 the original author or authors.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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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.List;
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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.dto.Departure;
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import de.schildbach.pte.dto.Location;
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import de.schildbach.pte.dto.LocationType;
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import de.schildbach.pte.dto.QueryDeparturesResult;
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import de.schildbach.pte.dto.QueryDeparturesResult.Status;
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import de.schildbach.pte.util.ParserUtils;
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/**
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* @author Andreas Schildbach
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*/
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public class SbbProvider extends AbstractHafasProvider
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{
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public static final String NETWORK_ID = "fahrplan.sbb.ch";
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private static final String API_BASE = "http://fahrplan.sbb.ch/bin/";
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private static final String API_URI = "http://fahrplan.sbb.ch/bin/extxml.exe";
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private static final long PARSER_DAY_ROLLOVER_THRESHOLD_MS = 12 * 60 * 60 * 1000;
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public SbbProvider(final String accessId)
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{
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super(API_URI, accessId);
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}
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public boolean hasCapabilities(final Capability... capabilities)
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{
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for (final Capability capability : capabilities)
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if (capability == Capability.DEPARTURES || capability == Capability.CONNECTIONS)
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return true;
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return false;
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}
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private final static String NEARBY_URI = API_BASE + "bhftafel.exe/dn?input=%s&distance=50&near=Anzeigen";
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@Override
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protected String nearbyStationUri(final String stationId)
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{
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return String.format(NEARBY_URI, stationId);
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}
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private 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(API_BASE).append("bhftafel.exe/dox");
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uri.append("?start=");
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if (maxDepartures != 0)
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uri.append("&maxJourneys=").append(maxDepartures);
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uri.append("&boardType=dep");
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uri.append("&productsFilter=1111111111000000");
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uri.append("&input=").append(stationId);
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uri.append("&disableEquivs=yes"); // don't use nearby stations
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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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+ "<p class=\"querysummary\">\n(.*?)</p>\n" // head
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+ "(?:(.*?)|(an dieser Haltestelle keines))\n" // departures
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+ "<p class=\"link1\">\n(.*?)</p>\n" // footer
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+ "|(Informationen zu)" // messages
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+ "|(Verbindung zum Server konnte leider nicht hergestellt werden|kann vom Server derzeit leider nicht bearbeitet werden)" // messages
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+ ").*?" //
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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 />)?\n" // location
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+ "Abfahrt (\\d{1,2}:\\d{2})\n" // time
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+ "Uhr, (\\d{2}\\.\\d{2}\\.\\d{2})\n" // date
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+ ".*?input=(\\d+)&.*?" // locationId
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, Pattern.DOTALL);
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private static final Pattern P_DEPARTURES_COARSE = Pattern.compile("<p class=\"(journey con_\\d+)\">\n(.*?)</p>", Pattern.DOTALL);
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private static final Pattern P_DEPARTURES_FINE = Pattern.compile("" //
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+ "<strong>(.*?)</strong>\n" // line
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+ ">>\n" //
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+ "(.*?)\n" // destination
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+ "<br />\n" //
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+ "<strong>(\\d+:\\d+)</strong>\n" // time
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+ "(?:Gl\\. (" + ParserUtils.P_PLATFORM + ")\n)?" // position
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+ ".*?" //
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, Pattern.DOTALL);
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public QueryDeparturesResult queryDepartures(final String stationId, final int maxDepartures) throws IOException
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{
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final String uri = departuresQueryUri(stationId, maxDepartures);
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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(Status.NO_INFO, Integer.parseInt(stationId));
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else if (mHeadCoarse.group(5) != null)
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return new QueryDeparturesResult(Status.INVALID_STATION, Integer.parseInt(stationId));
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else if (mHeadCoarse.group(6) != null)
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return new QueryDeparturesResult(Status.SERVICE_DOWN, Integer.parseInt(stationId));
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final String head = mHeadCoarse.group(1) + mHeadCoarse.group(4);
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final Matcher mHeadFine = P_DEPARTURES_HEAD_FINE.matcher(head);
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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.parseDate(mHeadFine.group(3)), ParserUtils
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.parseTime(mHeadFine.group(2)));
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final int locationId = Integer.parseInt(mHeadFine.group(4));
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final List<Departure> departures = new ArrayList<Departure>(8);
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// String oldZebra = null;
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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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// zebra mechanism is currently broken on service
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// final String zebra = mDepCoarse.group(1);
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// if (oldZebra != null && zebra.equals(oldZebra))
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// throw new IllegalArgumentException("missed row? last:" + zebra);
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// else
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// oldZebra = zebra;
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final Matcher mDepFine = P_DEPARTURES_FINE.matcher(mDepCoarse.group(2));
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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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final String position = ParserUtils.resolveEntities(mDepFine.group(4));
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final Departure dep = new Departure(parsed.getTime(), line, line != null ? lineColors(line) : null, position, 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 " + stationId);
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}
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}
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return new QueryDeparturesResult(new Location(LocationType.STATION, locationId, 0, 0, location), departures, null);
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}
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else
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{
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throw new IllegalArgumentException("cannot parse '" + head + "' on " + stationId);
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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 " + stationId);
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}
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}
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private 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 final Pattern P_NORMALIZE_TYPE_SBAHN = Pattern.compile("SN?\\d*");
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private static final Pattern P_NORMALIZE_TYPE_BUS = Pattern.compile("BUS\\w*");
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@Override
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protected char normalizeType(final String type)
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{
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final String ucType = type.toUpperCase();
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final char t = normalizeCommonTypes(ucType);
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if (t != 0)
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return t;
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if (ucType.equals("ICN")) // Intercity-Neigezug, Schweiz
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return 'I';
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if (ucType.equals("X")) // InterConnex
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return 'I';
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if (ucType.equals("ES")) // Eurostar Italia
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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("NZ")) // Nachtzug?
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return 'I';
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if (ucType.equals("IN")) // Oslo
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return 'I';
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if (ucType.equals("AVE")) // Alta Velocidad Española, Spanien
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return 'I';
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if (ucType.equals("EM")) // Barcelona-Alicante, Spanien
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return 'I';
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if (ucType.equals("FYR")) // Fyra, Amsterdam-Schiphol-Rotterdam
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return 'I';
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if (ucType.equals("ARZ")) // Frankreich, Nacht
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return 'I';
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if (ucType.equals("D"))
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return 'R';
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if (ucType.equals("E"))
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return 'R';
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if (ucType.equals("EXT"))
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return 'R';
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if (ucType.equals("ATZ"))
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return 'R';
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if (ucType.equals("RSB"))
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return 'R';
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if (ucType.equals("SN"))
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return 'R';
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if (ucType.equals("CAT")) // City Airport Train Wien
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return 'R';
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if (ucType.equals("ALS")) // Spanien
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return 'R';
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if (ucType.equals("ARC")) // Spanien
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return 'R';
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if (ucType.equals("TAL")) // Spanien
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return 'R';
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if (ucType.equals("ATR")) // Spanien
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return 'R';
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if (P_NORMALIZE_TYPE_SBAHN.matcher(ucType).matches())
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return 'S';
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if (ucType.equals("MET")) // Lausanne
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return 'U';
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if (ucType.equals("TRAM"))
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return 'T';
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if (ucType.equals("TRA"))
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return 'T';
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if (ucType.equals("M")) // Lausanne
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return 'T';
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if (ucType.equals("T"))
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return 'T';
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if (ucType.equals("NTR"))
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return 'T';
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if (ucType.equals("TRO"))
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return 'B';
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if (ucType.equals("NTO")) // Niederflurtrolleybus zwischen Bern, Bahnhofsplatz und Bern, Wankdorf Bahnhof
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return 'B';
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if (ucType.equals("NFB"))
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return 'B';
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if (ucType.equals("NBU"))
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return 'B';
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if (ucType.equals("MIN"))
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return 'B';
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if (ucType.equals("MID"))
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return 'B';
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if (ucType.equals("N"))
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return 'B';
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if (ucType.equals("TX"))
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return 'B';
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if (ucType.equals("TAXI"))
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return 'B';
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if (ucType.equals("BUXI"))
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return 'B';
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if (P_NORMALIZE_TYPE_BUS.matcher(ucType).matches())
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return 'B';
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if (ucType.equals("BAT"))
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return 'F';
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if (ucType.equals("BAV"))
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return 'F';
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if (ucType.equals("FAE"))
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return 'F';
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if (ucType.equals("KAT")) // z.B. Friedrichshafen <-> Konstanz
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return 'F';
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if (ucType.equals("GB")) // Gondelbahn
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return 'C';
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if (ucType.equals("SL")) // Sessel-Lift
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return 'C';
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if (ucType.equals("LB"))
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return 'C';
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if (ucType.equals("FUN")) // Standseilbahn
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return 'C';
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if (ucType.equals("P"))
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return '?';
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return 0;
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}
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}
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