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departures for Linz
git-svn-id: https://public-transport-enabler.googlecode.com/svn/trunk@194 0924bc21-9374-b0fa-ee44-9ff1593b38f0
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andreas.schildbach
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1 changed files with 266 additions and 0 deletions
266
src/de/schildbach/pte/LinzProvider.java
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266
src/de/schildbach/pte/LinzProvider.java
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/*
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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.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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/**
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* @author Andreas Schildbach
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*/
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public class LinzProvider implements NetworkProvider
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{
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public static final String NETWORK_ID = "www.linzag.at";
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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)
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return true;
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return false;
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}
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public List<Autocomplete> autocompleteStations(final CharSequence constraint) throws IOException
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{
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throw new UnsupportedOperationException();
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}
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private static final String NEARBY_LATLON_URI = "http://www.linzag.at/linz/XSLT_DM_REQUEST"
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+ "?outputFormat=XML&mode=direct&coordOutputFormat=WGS84&mergeDep=1&useAllStops=1&name_dm=%2.6f:%2.6f:WGS84&type_dm=coord&itOptionsActive=1&ptOptionsActive=1&useProxFootSearch=1&excludedMeans=checkbox";
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private static final String NEARBY_STATION_URI = "http://www.linzag.at/linz/XSLT_DM_REQUEST"
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+ "?outputFormat=XML&mode=direct&coordOutputFormat=WGS84&mergeDep=1&useAllStops=1&name_dm=%s&type_dm=stop&itOptionsActive=1&ptOptionsActive=1&useProxFootSearch=1&excludedMeans=checkbox";
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private static final Pattern P_NEARBY = Pattern
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.compile("<itdOdvAssignedStop stopID=\"(\\d+)\" x=\"(\\d+)\" y=\"(\\d+)\" mapName=\"WGS84\" .*? nameWithPlace=\"([^\"]*)\" distance=\"(\\d+)\"");
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public List<Station> nearbyStations(final String stationId, final double lat, final double lon, final int maxDistance, final int maxStations)
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throws IOException
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{
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String uri;
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if (lat != 0 || lon != 0)
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uri = String.format(NEARBY_LATLON_URI, lon, lat);
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else if (stationId != null)
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uri = String.format(NEARBY_STATION_URI, stationId);
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else
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throw new IllegalArgumentException("at least one of stationId or lat/lon must be given");
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final CharSequence page = ParserUtils.scrape(uri);
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final List<Station> stations = new ArrayList<Station>();
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final Matcher mNearby = P_NEARBY.matcher(page);
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while (mNearby.find())
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{
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final int sId = Integer.parseInt(mNearby.group(1));
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final double sLon = latLonToDouble(Integer.parseInt(mNearby.group(2)));
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final double sLat = latLonToDouble(Integer.parseInt(mNearby.group(3)));
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final String sName = mNearby.group(4).trim();
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final int sDist = Integer.parseInt(mNearby.group(5));
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final Station station = new Station(sId, sName, sLat, sLon, sDist, null, null);
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stations.add(station);
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}
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if (maxStations == 0 || maxStations >= stations.size())
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return stations;
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else
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return stations.subList(0, maxStations);
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}
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private static double latLonToDouble(int value)
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{
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return (double) value / 1000000;
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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, final WalkSpeed walkSpeed) 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://www.linzag.at/linz/XSLT_DM_REQUEST");
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uri.append("?outputFormat=XML");
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uri.append("&coordOutputFormat=WGS84");
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uri.append("&type_dm=stop");
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uri.append("&name_dm=").append(stationId);
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uri.append("&mode=direct");
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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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+ "<itdOdv type=\"stop\" usage=\"dm\">(.*?)</itdOdv>.*?" // head
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+ "(?:<itdDepartureList>(.*?)</itdDepartureList>.*?)?" // departures
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// TODO messages
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, Pattern.DOTALL);
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private static final Pattern P_DEPARTURES_HEAD_FINE = Pattern.compile(".*?" //
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+ "<odvNameElem .*? stopID=\"(\\d+)\" [^>]*>" // locationId
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+ "([^<]*).*?" // location
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, Pattern.DOTALL);
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private static final Pattern P_DEPARTURES_COARSE = Pattern.compile("<itdDeparture (.*?)</itdDeparture>", Pattern.DOTALL);
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private static final Pattern P_DEPARTURES_FINE = Pattern.compile("" //
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+ "stopID=\"(\\d+)\" .*? area=\"\\d+\" platform=\"(\\d+)?\" platformName=\"\".*?" // locationId
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+ "<itdDate year=\"(\\d+)\" month=\"(\\d+)\" day=\"(\\d+)\" weekday=\"\\d+\"/>" // date
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+ "<itdTime hour=\"(\\d+)\" minute=\"(\\d+)\" ap=\"\"/>" // time
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+ ".*?" //
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+ "<itdServingLine .*? number=\"([^<]*)\" symbol=\"([^<]*)\" motType=\"(\\d+)\" " // line, symbol, lineType
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+ "realtime=\"(\\d+)\" " // realtime
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+ "direction=\"([^<]*)\" destID=\"(\\d+)\"" // destination, destinationId
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+ ".*?" //
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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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final String departuresText = mHeadCoarse.group(2);
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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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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 int locationId = Integer.parseInt(mHeadFine.group(1));
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final String location = ParserUtils.resolveEntities(mHeadFine.group(2));
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final List<Departure> departures = new ArrayList<Departure>(8);
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if (departuresText != null)
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{
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final Matcher mDepCoarse = P_DEPARTURES_COARSE.matcher(departuresText);
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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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if (Integer.parseInt(mDepFine.group(1)) == locationId)
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{
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final String position = mDepFine.group(2) != null ? "Gl. " + mDepFine.group(2) : null;
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final Date departureDate = parseDate(mDepFine.group(3), mDepFine.group(4), mDepFine.group(5), mDepFine.group(6),
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mDepFine.group(7));
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final String line = parseLine(mDepFine.group(8), mDepFine.group(9), mDepFine.group(10));
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final boolean isRealtime = mDepFine.group(11).equals("1");
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final String destination = mDepFine.group(12);
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final int destinationId = Integer.parseInt(mDepFine.group(13));
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departures.add(new Departure(!isRealtime ? departureDate : null, isRealtime ? departureDate : null, line,
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line != null ? LINES.get(line.charAt(0)) : null, null, position, destinationId, destination, null));
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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 '" + mDepCoarse.group(1) + "' on " + uri);
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}
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}
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}
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return new QueryDeparturesResult(uri, locationId, location, 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 Date parseDate(final String year, final String month, final String day, final String hour, final String minute)
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{
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final Calendar calendar = new GregorianCalendar();
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calendar.clear();
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calendar.set(Calendar.YEAR, Integer.parseInt(year));
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calendar.set(Calendar.MONTH, Integer.parseInt(month) - 1);
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calendar.set(Calendar.DAY_OF_MONTH, Integer.parseInt(day));
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calendar.set(Calendar.HOUR, Integer.parseInt(hour));
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calendar.set(Calendar.MINUTE, Integer.parseInt(minute));
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return calendar.getTime();
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}
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private String parseLine(final String number, final String symbol, final String mot)
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{
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if (!number.equals(symbol))
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throw new IllegalStateException("number " + number + ", symbol " + symbol);
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int t = Integer.parseInt(mot);
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if (t == 4)
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return 'T' + number;
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if (t == 5 || t == 6 || t == 7 || t == 10)
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return 'B' + number;
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if (t == 8)
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return 'C' + number;
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throw new IllegalStateException("cannot normalize type '" + mot + "' line '" + number + "'");
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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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