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sub-project for enabler
This commit is contained in:
Andreas Schildbach
parent
ad4fa14c98
commit
f80bba6934
167 changed files with 0 additions and 0 deletions
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/*
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* Copyright 2010, 2011 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.Collections;
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import java.util.GregorianCalendar;
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import java.util.List;
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import java.util.TimeZone;
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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.Line;
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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.NearbyStationsResult;
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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.dto.ResultHeader;
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import de.schildbach.pte.dto.StationDepartures;
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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 SeptaProvider extends AbstractHafasProvider
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{
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public static final NetworkId NETWORK_ID = NetworkId.SEPTA;
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private static final String API_BASE = "http://airs1.septa.org/bin/";
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private static final long PARSER_DAY_ROLLOVER_THRESHOLD_MS = 12 * 60 * 60 * 1000;
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public SeptaProvider()
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{
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super(API_BASE + "query.exe/en", 4, null);
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}
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public NetworkId id()
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{
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return NETWORK_ID;
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}
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@Override
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protected TimeZone timeZone()
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{
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return TimeZone.getTimeZone("EST");
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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.AUTOCOMPLETE_ONE_LINE || 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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@Override
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protected void setProductBits(final StringBuilder productBits, final char product)
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{
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if (product == 'I')
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{
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}
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else if (product == 'R' || product == 'S')
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{
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productBits.setCharAt(3, '1'); // Regional Rail
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}
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else if (product == 'U')
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{
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productBits.setCharAt(0, '1'); // Subway
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}
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else if (product == 'T')
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{
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productBits.setCharAt(1, '1'); // Trolley
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}
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else if (product == 'B')
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{
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productBits.setCharAt(2, '1'); // Bus
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}
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else if (product == 'P' || product == 'F' || product == 'C')
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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 handle: " + product);
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}
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}
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private static final Pattern P_SPLIT_ADDRESS = Pattern.compile("(.*),\\s+([^,]+\\s+\\d{4,5})");
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@Override
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protected String[] splitPlaceAndName(final String name)
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{
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final Matcher matcher = P_SPLIT_ADDRESS.matcher(name);
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if (matcher.matches())
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return new String[] { matcher.group(2), matcher.group(1) };
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else
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return super.splitPlaceAndName(name);
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}
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public NearbyStationsResult queryNearbyStations(final Location location, final int maxDistance, final int maxStations) throws IOException
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{
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final StringBuilder uri = new StringBuilder(API_BASE);
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if (location.type == LocationType.STATION && location.hasId())
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{
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uri.append("stboard.exe/en?near=Anzeigen");
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uri.append("&distance=").append(maxDistance != 0 ? maxDistance / 1000 : 50);
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uri.append("&input=").append(location.id);
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return htmlNearbyStations(uri.toString());
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}
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else
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{
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throw new IllegalArgumentException("cannot handle: " + location.toDebugString());
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}
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}
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private String departuresQueryUri(final int stationId, final int maxDepartures)
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{
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final Calendar now = new GregorianCalendar(timeZone());
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final StringBuilder uri = new StringBuilder();
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uri.append(API_BASE).append("stboard.exe/en");
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uri.append("?input=").append(stationId);
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uri.append("&boardType=dep");
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uri.append("&time=").append(
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ParserUtils.urlEncode(String.format("%02d:%02d %s", now.get(Calendar.HOUR), now.get(Calendar.MINUTE),
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now.get(Calendar.AM_PM) == Calendar.AM ? "am" : "pm")));
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uri.append("&date=").append(
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String.format("%02d%02d%04d", now.get(Calendar.MONTH) + 1, now.get(Calendar.DAY_OF_MONTH), now.get(Calendar.YEAR)));
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uri.append("&productsFilter=").append(allProductsString());
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if (maxDepartures != 0)
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uri.append("&maxJourneys=").append(maxDepartures);
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uri.append("&disableEquivs=yes"); // don't use nearby stations
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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_PAGE_COARSE = Pattern
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.compile(
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".*?" //
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+ "(?:" //
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+ "<div class=\"hfsTitleText\">([^<]*)<.*?" // location
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+ "\n(\\d{2}/\\d{2}/\\d{4})[^\n]*\n" // date
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+ "Departure (\\d{1,2}:\\d{2} [AP]M)\n.*?" // time
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+ "(?:<table class=\"resultTable\"[^>]*>(.+?)</table>|(No trains in this space of time))" //
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+ "|(input cannot be interpreted)|(Verbindung zum Server konnte leider nicht hergestellt werden|kann vom Server derzeit leider nicht bearbeitet werden))" //
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+ ".*?" //
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, Pattern.DOTALL);
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private static final Pattern P_DEPARTURES_COARSE = Pattern.compile("<tr class=\"(depboard-\\w*)\">(.*?)</tr>", Pattern.DOTALL);
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private static final Pattern P_DEPARTURES_FINE = Pattern.compile(".*?" //
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+ "<td class=\"time\">(\\d{1,2}:\\d{2} [AP]M)</td>\n" // plannedTime
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+ "(?:<td class=\"[\\w ]*prognosis[\\w ]*\">\n" //
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+ "(?: |<span class=\"rtLimit\\d\">(pünktlich|\\d{1,2}:\\d{2})</span>)\n</td>\n" // predictedTime
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+ ")?.*?" //
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+ "<img class=\"product\" src=\"/hafas-res/img/products/(\\w+)_pic\\.gif\" width=\"\\d+\" height=\"\\d+\" alt=\"([^\"]*)\".*?" // type,
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// line
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+ "<strong>\n" //
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+ "<a href=\"http://airs1\\.septa\\.org/bin/stboard\\.exe/en\\?input=(\\d+)&[^>]*>" // destinationId
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+ "\\s*(.*?)\\s*</a>\n" // destination
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+ "</strong>.*?" //
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+ "(?:<td class=\"center sepline top\">\n(" + ParserUtils.P_PLATFORM + ").*?)?" // position
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, Pattern.DOTALL);
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public QueryDeparturesResult queryDepartures(final int stationId, final int maxDepartures, final boolean equivs) throws IOException
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{
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final ResultHeader header = new ResultHeader(SERVER_PRODUCT);
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final QueryDeparturesResult result = new QueryDeparturesResult(header);
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// scrape page
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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 mPageCoarse = P_DEPARTURES_PAGE_COARSE.matcher(page);
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if (mPageCoarse.matches())
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{
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// messages
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if (mPageCoarse.group(5) != null)
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{
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result.stationDepartures.add(new StationDepartures(new Location(LocationType.STATION, stationId),
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Collections.<Departure> emptyList(), null));
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return result;
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}
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else if (mPageCoarse.group(6) != null)
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return new QueryDeparturesResult(header, Status.INVALID_STATION);
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else if (mPageCoarse.group(7) != null)
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return new QueryDeparturesResult(header, Status.SERVICE_DOWN);
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final String location = ParserUtils.resolveEntities(mPageCoarse.group(1));
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final Calendar currentTime = new GregorianCalendar(timeZone());
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currentTime.clear();
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ParserUtils.parseAmericanDate(currentTime, mPageCoarse.group(2));
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ParserUtils.parseAmericanTime(currentTime, mPageCoarse.group(3));
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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(mPageCoarse.group(4));
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while (mDepCoarse.find())
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{
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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 Calendar plannedTime = new GregorianCalendar(timeZone());
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plannedTime.setTimeInMillis(currentTime.getTimeInMillis());
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ParserUtils.parseAmericanTime(plannedTime, mDepFine.group(1));
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if (plannedTime.getTimeInMillis() - currentTime.getTimeInMillis() < -PARSER_DAY_ROLLOVER_THRESHOLD_MS)
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plannedTime.add(Calendar.DAY_OF_MONTH, 1);
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final Calendar predictedTime;
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final String prognosis = ParserUtils.resolveEntities(mDepFine.group(2));
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if (prognosis != null)
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{
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predictedTime = new GregorianCalendar(timeZone());
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if (prognosis.equals("pünktlich"))
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{
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predictedTime.setTimeInMillis(plannedTime.getTimeInMillis());
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}
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else
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{
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predictedTime.setTimeInMillis(currentTime.getTimeInMillis());
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ParserUtils.parseAmericanTime(predictedTime, prognosis);
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}
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}
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else
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{
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predictedTime = null;
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}
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final String lineType = mDepFine.group(3);
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final Line line = parseLine(lineType, ParserUtils.resolveEntities(mDepFine.group(4)), false);
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final int destinationId = mDepFine.group(5) != null ? Integer.parseInt(mDepFine.group(5)) : 0;
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final String destinationName = ParserUtils.resolveEntities(mDepFine.group(6));
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final Location destination = new Location(destinationId > 0 ? LocationType.STATION : LocationType.ANY, destinationId, null,
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destinationName);
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final String position = mDepFine.group(7) != null ? "Gl. " + ParserUtils.resolveEntities(mDepFine.group(7)) : null;
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final Departure dep = new Departure(plannedTime.getTime(), predictedTime != null ? predictedTime.getTime() : null, line,
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position, destination, null, null);
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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(2) + "' on " + stationId);
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}
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}
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result.stationDepartures.add(new StationDepartures(new Location(LocationType.STATION, stationId, null, location), departures, null));
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return result;
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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 static final String AUTOCOMPLETE_URI = API_BASE
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+ "ajax-getstop.exe/dny?start=1&tpl=suggest2json&REQ0JourneyStopsS0A=255&REQ0JourneyStopsB=12&S=%s?&js=true&";
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private static final String ENCODING = "ISO-8859-1";
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public List<Location> autocompleteStations(final CharSequence constraint) throws IOException
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{
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final String uri = String.format(AUTOCOMPLETE_URI, ParserUtils.urlEncode(constraint.toString(), ENCODING));
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return jsonGetStops(uri);
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}
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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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// skip parsing of "common" lines, because this is America
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// Regional
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if (ucType.equals("RAI"))
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return 'R';
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// Subway
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if (ucType.equals("BSS"))
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return 'U';
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if (ucType.equals("BSL"))
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return 'U';
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if (ucType.equals("MFL"))
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return 'U';
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// Tram
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if (ucType.equals("TRM"))
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return 'T';
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if (ucType.equals("NHS")) // Tro NHSL
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return 'T';
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// Bus
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if (ucType.equals("BUS"))
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return 'B';
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if (ucType.equals("TRO"))
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return 'B';
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// from Connections:
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if (ucType.equals("RAIL"))
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return 'R';
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if (ucType.equals("SUBWAY"))
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return 'U';
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if (ucType.equals("TROLLEY"))
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return 'B';
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return 0;
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}
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}
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