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scan nearby stations for Berlin

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git-svn-id: https://public-transport-enabler.googlecode.com/svn/trunk@395 0924bc21-9374-b0fa-ee44-9ff1593b38f0
This commit is contained in:
andreas.schildbach@gmail.com 2010-12-15 22:46:54 +00:00
parent 028008cc08
commit 4f18a77433
4 changed files with 147 additions and 11 deletions
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97
src/de/schildbach/pte/BvgProvider.java
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@ -42,6 +42,7 @@ import de.schildbach.pte.dto.NearbyStationsResult;
import de.schildbach.pte.dto.QueryConnectionsResult;
import de.schildbach.pte.dto.QueryDeparturesResult;
import de.schildbach.pte.dto.QueryDeparturesResult.Status;
import de.schildbach.pte.dto.Station;
import de.schildbach.pte.exception.SessionExpiredException;
import de.schildbach.pte.util.Color;
import de.schildbach.pte.util.ParserUtils;
@ -49,7 +50,7 @@ import de.schildbach.pte.util.ParserUtils;
/**
* @author Andreas Schildbach
*/
public final class BvgProvider implements NetworkProvider
public final class BvgProvider extends AbstractHafasProvider
{
public static final String NETWORK_ID = "mobil.bvg.de";
@ -57,6 +58,12 @@ public final class BvgProvider implements NetworkProvider
private static final long PARSER_DAY_ROLLDOWN_THRESHOLD_MS = 6 * 60 * 60 * 1000;
private static final String BVG_BASE_URL = "http://mobil.bvg.de";
private static final String API_BASE = "http://mobil.bvg.de/Fahrinfo/bin/";
public BvgProvider()
{
super(null, null);
}
public boolean hasCapabilities(final Capability... capabilities)
{
@ -72,6 +79,7 @@ public final class BvgProvider implements NetworkProvider
private static final Pattern P_MULTI_NAME = Pattern.compile("<a href=\\\"/Fahrinfo/bin/stboard\\.bin/dox.*?input=(\\d+)&.*?\">\\s*(.*?)\\s*</a>",
Pattern.DOTALL);
@Override
public List<Location> autocompleteStations(final CharSequence constraint) throws IOException
{
final List<Location> results = new ArrayList<Location>();
@ -93,10 +101,72 @@ public final class BvgProvider implements NetworkProvider
return results;
}
private final String NEARBY_URI = API_BASE + "stboard.bin/dn?distance=50&near&input=%s";
@Override
protected String nearbyStationUri(final String stationId)
{
return String.format(NEARBY_URI, ParserUtils.urlEncode(stationId));
}
private final static Pattern P_NEARBY_OWN = Pattern
.compile("/Stadtplan/index.*?location=(\\d+),HST,WGS84,(-?\\d+\\.\\d+),(-?\\d+\\.\\d+)&amp;label=([^\"]*)\"");
private final static Pattern P_NEARBY_PAGE = Pattern.compile("<table class=\"ivuTableOverview\".*?<tbody>(.*?)</tbody>", Pattern.DOTALL);
private final static Pattern P_NEARBY_COARSE = Pattern.compile("<tr>(.*?)</tr>", Pattern.DOTALL);
private final static Pattern P_NEARBY_FINE_LOCATION = Pattern.compile("input=(\\d+)&[^\"]*\">([^<]*)<");
@Override
public NearbyStationsResult nearbyStations(final String stationId, final int lat, final int lon, final int maxDistance, final int maxStations)
throws IOException
{
throw new UnsupportedOperationException();
if (stationId == null)
throw new IllegalArgumentException("stationId must be given");
final List<Station> stations = new ArrayList<Station>();
final String uri = nearbyStationUri(stationId);
final CharSequence page = ParserUtils.scrape(uri);
final Matcher mOwn = P_NEARBY_OWN.matcher(page);
if (mOwn.find())
{
final int parsedId = Integer.parseInt(mOwn.group(1));
final int parsedLon = (int) (Float.parseFloat(mOwn.group(2)) * 1E6);
final int parsedLat = (int) (Float.parseFloat(mOwn.group(3)) * 1E6);
final String parsedName = ParserUtils.urlDecode(mOwn.group(4), "ISO-8859-1");
stations.add(new Station(parsedId, parsedName, parsedLat, parsedLon, 0, null, null));
}
final Matcher mPage = P_NEARBY_PAGE.matcher(page);
if (mPage.find())
{
final Matcher mCoarse = P_NEARBY_COARSE.matcher(mPage.group(1));
while (mCoarse.find())
{
final Matcher mFineLocation = P_NEARBY_FINE_LOCATION.matcher(mCoarse.group(1));
if (mFineLocation.find())
{
final int parsedId = Integer.parseInt(mFineLocation.group(1));
final String parsedName = ParserUtils.resolveEntities(mFineLocation.group(2));
stations.add(new Station(parsedId, parsedName, 0, 0, 0, null, null));
}
else
{
throw new IllegalArgumentException("cannot parse '" + mCoarse.group(1) + "' on " + uri);
}
}
if (maxStations == 0 || maxStations >= stations.size())
return new NearbyStationsResult(stations);
else
return new NearbyStationsResult(stations.subList(0, maxStations));
}
else
{
throw new IllegalArgumentException("cannot parse '" + page + "' on " + uri);
}
}
public static final String STATION_URL_CONNECTION = "http://mobil.bvg.de/Fahrinfo/bin/query.bin/dox";
@ -183,6 +253,7 @@ public final class BvgProvider implements NetworkProvider
private static final Pattern P_CHECK_CONNECTIONS_ERROR = Pattern
.compile("(zu dicht beieinander|mehrfach vorhanden oder identisch)|(keine geeigneten Haltestellen)|(keine Verbindung gefunden)|(derzeit nur Ausk&#252;nfte vom)|(zwischenzeitlich nicht mehr gespeichert)");
@Override
public QueryConnectionsResult queryConnections(final Location from, final Location via, final Location to, final Date date, final boolean dep,
final String products, final WalkSpeed walkSpeed) throws IOException
{
@ -216,6 +287,7 @@ public final class BvgProvider implements NetworkProvider
}
}
@Override
public QueryConnectionsResult queryMoreConnections(final String uri) throws IOException
{
final CharSequence page = ParserUtils.scrape(uri);
@ -321,6 +393,7 @@ public final class BvgProvider implements NetworkProvider
+ "<strong>(.*?)</strong>|<a href=\"/Stadtplan.*?WGS84,(\\d+),(\\d+)&.*?\">([^<]*)</a>|<strong>([^<]*)</strong>).*?" // arrival
+ ").*?", Pattern.DOTALL);
@Override
public GetConnectionDetailsResult getConnectionDetails(final String uri) throws IOException
{
final CharSequence page = ParserUtils.scrape(uri);
@ -648,15 +721,16 @@ public final class BvgProvider implements NetworkProvider
throw new IllegalStateException("cannot normalize line " + line);
}
@Override
protected char normalizeType(final String type)
{
throw new UnsupportedOperationException();
}
private static final Map<String, int[]> LINES = new HashMap<String, int[]>();
static
{
LINES.put("I", new int[] { Color.WHITE, Color.RED, Color.RED }); // generic
LINES.put("R", new int[] { Color.WHITE, Color.RED, Color.RED }); // generic
LINES.put("S", new int[] { Color.parseColor("#006e34"), Color.WHITE }); // generic
LINES.put("U", new int[] { Color.parseColor("#003090"), Color.WHITE }); // generic
LINES.put("SS1", new int[] { Color.rgb(221, 77, 174), Color.WHITE });
LINES.put("SS2", new int[] { Color.rgb(16, 132, 73), Color.WHITE });
LINES.put("SS25", new int[] { Color.rgb(16, 132, 73), Color.WHITE });
@ -764,10 +838,13 @@ public final class BvgProvider implements NetworkProvider
LINES.put("RRB93", new int[] { Color.parseColor("#A7653F"), Color.WHITE });
}
@Override
public int[] lineColors(final String line)
{
if (line.length() == 0)
return null;
return LINES.get(line);
final int[] lineColors = LINES.get(line);
if (lineColors != null)
return lineColors;
else
return super.lineColors(line);
}
}