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use superclass for nearby station scan

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git-svn-id: https://public-transport-enabler.googlecode.com/svn/trunk@222 0924bc21-9374-b0fa-ee44-9ff1593b38f0
This commit is contained in:
andreas.schildbach 2010-10-02 17:49:13 +00:00
parent 868a7bbc05
commit da532bcf81
2 changed files with 28 additions and 49 deletions
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20
src/de/schildbach/pte/AbstractHafasProvider.java
View file

@ -29,8 +29,9 @@ import java.util.regex.Pattern;
public abstract class AbstractHafasProvider implements NetworkProvider
{
private final static Pattern P_NEARBY_COARSE = Pattern.compile("<tr class=\"(zebra[^\"]*)\">(.*?)</tr>", Pattern.DOTALL);
private final static Pattern P_NEARBY_FINE = Pattern.compile(".*?&REQMapRoute0\\.Location0\\.X=(-?\\d+)&REQMapRoute0\\.Location0\\.Y=(-?\\d+)"
+ "&.*?[\\?&]input=(\\d+)&[^\"]*\">([^<]*)<.*?", Pattern.DOTALL);
private final static Pattern P_NEARBY_FINE_COORDS = Pattern
.compile("&REQMapRoute0\\.Location0\\.X=(-?\\d+)&REQMapRoute0\\.Location0\\.Y=(-?\\d+)&");
private final static Pattern P_NEARBY_FINE_LOCATION = Pattern.compile("[\\?&]input=(\\d+)&[^\"]*\">([^<]*)<");
protected abstract String nearbyStationUri(String stationId);
@ -46,15 +47,18 @@ public abstract class AbstractHafasProvider implements NetworkProvider
final CharSequence page = ParserUtils.scrape(uri);
final Matcher mCoarse = P_NEARBY_COARSE.matcher(page);
while (mCoarse.find())
{
final Matcher mFine = P_NEARBY_FINE.matcher(mCoarse.group(2));
if (mFine.matches())
final Matcher mFineCoords = P_NEARBY_FINE_COORDS.matcher(mCoarse.group(2));
final Matcher mFineLocation = P_NEARBY_FINE_LOCATION.matcher(mCoarse.group(2));
if (mFineCoords.find() && mFineLocation.find())
{
final int parsedLon = Integer.parseInt(mFine.group(1));
final int parsedLat = Integer.parseInt(mFine.group(2));
final int parsedId = Integer.parseInt(mFine.group(3));
final String parsedName = ParserUtils.resolveEntities(mFine.group(4));
final int parsedLon = Integer.parseInt(mFineCoords.group(1));
final int parsedLat = Integer.parseInt(mFineCoords.group(2));
final int parsedId = Integer.parseInt(mFineLocation.group(1));
final String parsedName = ParserUtils.resolveEntities(mFineLocation.group(2));
stations.add(new Station(parsedId, parsedName, parsedLat, parsedLon, 0, null, null));
}

61
src/de/schildbach/pte/RmvProvider.java
View file

@ -39,6 +39,7 @@ public class RmvProvider extends AbstractHafasProvider
{
public static final String NETWORK_ID = "mobil.rmv.de";
public static final String NETWORK_ID_ALT = "www.rmv.de";
private static final String API_BASE = "http://www.rmv.de/auskunft/bin/jp/";
private static final long PARSER_DAY_ROLLOVER_THRESHOLD_MS = 12 * 60 * 60 * 1000;
@ -51,7 +52,7 @@ public class RmvProvider extends AbstractHafasProvider
return true;
}
private static final String NAME_URL = "http://www.rmv.de/auskunft/bin/jp/stboard.exe/dox?input=";
private static final String NAME_URL = API_BASE + "stboard.exe/dox?input=";
private static final Pattern P_SINGLE_NAME = Pattern.compile(".*<input type=\"hidden\" name=\"input\" value=\"(.+?)#(\\d+)\" />.*",
Pattern.DOTALL);
private static final Pattern P_MULTI_NAME = Pattern.compile("<a href=\"/auskunft/bin/jp/stboard.exe/dox.*?input=(\\d+)&.*?\">\\s*(.*?)\\s*</a>",
@ -81,7 +82,7 @@ public class RmvProvider extends AbstractHafasProvider
private final static Pattern P_NEARBY_STATIONS = Pattern.compile("<a href=\"/auskunft/bin/jp/stboard.exe/dox.+?input=(\\d+).*?\">\\n"
+ "(.+?)\\s*\\((\\d+) m/[A-Z]+\\)\\n</a>", Pattern.DOTALL);
private final String NEARBY_URI = "http://www.rmv.de/auskunft/bin/jp/stboard.exe/dn?L=vs_rmv&distance=50&near&input=%s";
private final String NEARBY_URI = API_BASE + "stboard.exe/dn?L=vs_rmv&distance=50&near&input=%s";
@Override
protected String nearbyStationUri(final String stationId)
@ -89,22 +90,17 @@ public class RmvProvider extends AbstractHafasProvider
return String.format(NEARBY_URI, stationId);
}
private final static Pattern P_NEARBY_COARSE = Pattern.compile("<tr class=\"zebracol-\\d\">(.*?)</tr>", Pattern.DOTALL);
private final static Pattern P_NEARBY_FINE = Pattern.compile(".*?auskunft/bin/jp/stboard\\.exe/dn\\?L=vs_rmv&input=(\\d+).*?"
+ "&REQMapRoute0\\.Location0\\.X=(-?\\d+)&REQMapRoute0\\.Location0\\.Y=(-?\\d+)" //
+ "&REQMapRoute0\\.Location0\\.Name=(.*?)\">.*?", Pattern.DOTALL);
@Override
public List<Station> nearbyStations(final String stationId, final int lat, final int lon, final int maxDistance, final int maxStations)
throws IOException
{
final List<Station> stations = new ArrayList<Station>();
if (lat != 0 || lon != 0)
{
final String url = "http://www.rmv.de/auskunft/bin/jp/stboard.exe/dox?input=" + latLonToDouble(lat) + "%20" + latLonToDouble(lon);
final String url = API_BASE + "dox?input=" + latLonToDouble(lat) + "%20" + latLonToDouble(lon);
final CharSequence page = ParserUtils.scrape(url);
final List<Station> stations = new ArrayList<Station>();
final Matcher m = P_NEARBY_STATIONS.matcher(page);
while (m.find())
{
@ -115,49 +111,28 @@ public class RmvProvider extends AbstractHafasProvider
final Station station = new Station(sId, sName, 0, 0, sDist, null, null);
stations.add(station);
}
}
else if (stationId != null)
{
final String uri = nearbyStationUri(stationId);
final CharSequence page = ParserUtils.scrape(uri);
final Matcher mCoarse = P_NEARBY_COARSE.matcher(page);
while (mCoarse.find())
{
final Matcher mFine = P_NEARBY_FINE.matcher(mCoarse.group(1));
if (mFine.matches())
{
final int parsedId = Integer.parseInt(mFine.group(1));
final int parsedLon = Integer.parseInt(mFine.group(2));
final int parsedLat = Integer.parseInt(mFine.group(3));
final String parsedName = ParserUtils.resolveEntities(mFine.group(4));
final Station station = new Station(parsedId, parsedName, parsedLat, parsedLon, 0, null, null);
stations.add(station);
}
else
{
throw new IllegalArgumentException("cannot parse '" + mCoarse.group(1) + "' on " + uri);
}
}
}
else
{
throw new IllegalArgumentException("at least one of stationId or lat/lon must be given");
}
if (maxStations == 0 || maxStations >= stations.size())
return stations;
else
return stations.subList(0, maxStations);
}
else if (stationId != null)
{
return super.nearbyStations(stationId, 0, 0, maxDistance, maxStations);
}
else
{
throw new IllegalArgumentException("at least one of stationId or lat/lon must be given");
}
}
private static Pattern P_STATION_LOCATION = Pattern
.compile("REQMapRoute0\\.Location0\\.X=(\\d+)&REQMapRoute0\\.Location0\\.Y=(\\d+)&REQMapRoute0\\.Location0\\.Name=(.+?)\"");
public StationLocationResult stationLocation(final String stationId) throws IOException
{
final String uri = "http://www.rmv.de/auskunft/bin/jp/stboard.exe/dn?L=vs_rmv&selectDate=today&time=now&showStBoard=yes&boardType=dep&maxJourneys=10&start&input="
final String uri = API_BASE + "stboard.exe/dn?L=vs_rmv&selectDate=today&time=now&showStBoard=yes&boardType=dep&maxJourneys=10&start&input="
+ stationId;
final CharSequence page = ParserUtils.scrape(uri);
@ -197,7 +172,7 @@ public class RmvProvider extends AbstractHafasProvider
final DateFormat TIME_FORMAT = new SimpleDateFormat("HH:mm");
final StringBuilder uri = new StringBuilder();
uri.append("http://www.rmv.de/auskunft/bin/jp/query.exe/dox");
uri.append(API_BASE).append("query.exe/dox");
uri.append("?REQ0HafasInitialSelection=0");
uri.append("&REQ0HafasSearchForw=").append(dep ? "1" : "0");
uri.append("&REQ0JourneyDate=").append(ParserUtils.urlEncode(DATE_FORMAT.format(date)));
@ -482,7 +457,7 @@ public class RmvProvider extends AbstractHafasProvider
final Date now = new Date();
final StringBuilder uri = new StringBuilder();
uri.append("http://www.rmv.de/auskunft/bin/jp/stboard.exe/dox");
uri.append(API_BASE).append("stboard.exe/dox");
uri.append("?input=").append(stationId);
uri.append("&boardType=dep"); // show departures
uri.append("&maxJourneys=").append(maxDepartures != 0 ? maxDepartures : 50); // maximum taken from RMV site