/* * Copyright 2010 the original author or authors. * * 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 3 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, see . */ package de.schildbach.pte; import java.io.IOException; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; import java.util.List; import java.util.regex.Matcher; import java.util.regex.Pattern; import de.schildbach.pte.dto.Location; import de.schildbach.pte.dto.Departure; import de.schildbach.pte.dto.GetConnectionDetailsResult; import de.schildbach.pte.dto.LocationType; import de.schildbach.pte.dto.QueryConnectionsResult; import de.schildbach.pte.dto.QueryDeparturesResult; import de.schildbach.pte.dto.QueryDeparturesResult.Status; import de.schildbach.pte.util.ParserUtils; /** * @author Andreas Schildbach */ public class NasaProvider extends AbstractHafasProvider { public static final String NETWORK_ID = "www.nasa.de"; private static final String API_BASE = "http://www.nasa.de/delfi52/"; private static final long PARSER_DAY_ROLLOVER_THRESHOLD_MS = 12 * 60 * 60 * 1000; public boolean hasCapabilities(final Capability... capabilities) { for (final Capability capability : capabilities) if (capability == Capability.DEPARTURES) return true; return false; } public List autocompleteStations(CharSequence constraint) throws IOException { throw new UnsupportedOperationException(); } private final String NEARBY_URI = API_BASE + "stboard.exe/dn?input=%s&selectDate=today&boardType=dep&productsFilter=11111111&distance=50&near=Anzeigen"; @Override protected String nearbyStationUri(final String stationId) { return String.format(NEARBY_URI, stationId); } public String departuresQueryUri(final String stationId, final int maxDepartures) { final DateFormat DATE_FORMAT = new SimpleDateFormat("dd.MM.yy"); final DateFormat TIME_FORMAT = new SimpleDateFormat("HH:mm"); final Date now = new Date(); final StringBuilder uri = new StringBuilder(); uri.append(API_BASE).append("stboard.exe/dn"); uri.append("?input=").append(stationId); uri.append("&boardType=dep"); uri.append("&time=").append(TIME_FORMAT.format(now)); uri.append("&date=").append(DATE_FORMAT.format(now)); uri.append("&productsFilter=11111111"); if (maxDepartures != 0) uri.append("&maxJourneys=").append(maxDepartures); uri.append("&disableEquivs=yes"); // don't use nearby stations uri.append("&start=yes"); return uri.toString(); } private static final Pattern P_DEPARTURES_HEAD_COARSE = Pattern .compile( ".*?" // + "(?:" // + "]*>(.+?)
.*?" // + "(?:]*>(.+?)
|(verkehren an dieser Haltestelle keine))"// + "|(Eingabe kann nicht interpretiert)|(Verbindung zum Server konnte leider nicht hergestellt werden|kann vom Server derzeit leider nicht bearbeitet werden))" // + ".*?" // , Pattern.DOTALL); private static final Pattern P_DEPARTURES_HEAD_FINE = Pattern.compile(".*?" // + "\\s*(.*?)\\s*<.*?" // location + "(\\d{2}\\.\\d{2}\\.\\d{2}).*?" // date + "Abfahrt (\\d{1,2}:\\d{2}).*?" // time , Pattern.DOTALL); private static final Pattern P_DEPARTURES_COARSE = Pattern.compile("(.*?)", Pattern.DOTALL); private static final Pattern P_DEPARTURES_FINE = Pattern.compile(".*?" // + "(\\d{1,2}:\\d{2})\n" // plannedTime + "(?:\n" // + "(?: |(pünktlich|\\d{1,2}:\\d{2}))\n\n" // predictedTime + ")?.*?" // + "]*>\\s*(.*?)\\s*\n" // + "]*>" // destinationId + "\\s*(.*?)\\s*\n" // destination + ".*?" // + "(?:\n(" + ParserUtils.P_PLATFORM + ").*?)?" // position , Pattern.DOTALL); public QueryDeparturesResult queryDepartures(final String uri) throws IOException { // scrape page 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.NO_INFO); else if (mHeadCoarse.group(4) != null) return new QueryDeparturesResult(uri, Status.INVALID_STATION); else if (mHeadCoarse.group(5) != 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.parseDate(mHeadFine.group(2)), ParserUtils .parseTime(mHeadFine.group(3))); final List departures = new ArrayList(8); String oldZebra = null; final Matcher mDepCoarse = P_DEPARTURES_COARSE.matcher(mHeadCoarse.group(2)); while (mDepCoarse.find()) { final String zebra = mDepCoarse.group(1); if (oldZebra != null && zebra.equals(oldZebra)) throw new IllegalArgumentException("missed row? last:" + zebra); else oldZebra = zebra; final Matcher mDepFine = P_DEPARTURES_FINE.matcher(mDepCoarse.group(2)); if (mDepFine.matches()) { final Calendar current = new GregorianCalendar(); current.setTime(currentTime); final Calendar parsed = new GregorianCalendar(); parsed.setTime(ParserUtils.parseTime(mDepFine.group(1))); 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); final Date plannedTime = parsed.getTime(); Date predictedTime = null; final String prognosis = ParserUtils.resolveEntities(mDepFine.group(2)); if (prognosis != null) { if (prognosis.equals("pünktlich")) predictedTime = plannedTime; else predictedTime = ParserUtils.joinDateTime(currentTime, ParserUtils.parseTime(prognosis)); } final String lineType = mDepFine.group(3); final String line = normalizeLine(lineType, ParserUtils.resolveEntities(mDepFine.group(4))); final int destinationId = mDepFine.group(5) != null ? Integer.parseInt(mDepFine.group(5)) : 0; final String destination = ParserUtils.resolveEntities(mDepFine.group(6)); final String position = mDepFine.group(7) != null ? "Gl. " + ParserUtils.resolveEntities(mDepFine.group(7)) : null; final Departure dep = new Departure(plannedTime, predictedTime, line, line != null ? lineColors(line) : null, null, position, destinationId, destination, null); if (!departures.contains(dep)) departures.add(dep); } else { throw new IllegalArgumentException("cannot parse '" + mDepCoarse.group(2) + "' on " + uri); } } return new QueryDeparturesResult(uri, 0, location, departures); } else { throw new IllegalArgumentException("cannot parse '" + mHeadCoarse.group(1) + "' on " + uri); } } else { throw new IllegalArgumentException("cannot parse '" + page + "' on " + uri); } } @Override protected char normalizeType(String type) { final String ucType = type.toUpperCase(); final char t = normalizeCommonTypes(ucType); if (t != 0) return t; if (ucType.equals("D")) // Rußland Schlafwagenzug return 'I'; if (ucType.equals("DPF")) // mit Dampflok bespannter Zug return 'R'; if (ucType.equals("RR")) // Polen return 'R'; if (ucType.equals("E")) // Stadtbahn Karlsruhe: S4/S31/xxxxx return 'S'; if (ucType.equals("BSV")) return 'B'; if (ucType.equals("RBS")) // Rufbus return 'B'; if (ucType.equals("EB")) // Europa-Park, vermutlich "Erlebnisbahn" return '?'; return 0; } public QueryConnectionsResult queryConnections(LocationType fromType, String from, LocationType viaType, String via, LocationType toType, String to, Date date, boolean dep, String products, WalkSpeed walkSpeed) throws IOException { throw new UnsupportedOperationException(); } public QueryConnectionsResult queryMoreConnections(String uri) throws IOException { throw new UnsupportedOperationException(); } public GetConnectionDetailsResult getConnectionDetails(String connectionUri) throws IOException { throw new UnsupportedOperationException(); } }