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nearby stations

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git-svn-id: https://public-transport-enabler.googlecode.com/svn/trunk@122 0924bc21-9374-b0fa-ee44-9ff1593b38f0
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andreas.schildbach 2010-09-01 18:52:25 +00:00
parent 4f174fe3f9
commit 16376d8947
1 changed files with 39 additions and 1 deletions
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40
src/de/schildbach/pte/MvvProvider.java
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@ -76,9 +76,47 @@ public class MvvProvider implements NetworkProvider
return names;
}
private static final String NEARBY_URI = "http://efa.mvv-muenchen.de/ultralite/XML_DM_REQUEST"
+ "?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";
private static final Pattern P_NEARBY_COARSE = Pattern.compile("<dp>(.*?)</dp>");
private static final Pattern P_NEARBY_FINE = Pattern.compile(".*?<n>(.*?)</n>.*?<r>.*?<id>(.*?)</id>.*?</r>.*?<c>(\\d+),(\\d+)</c>.*?");
public List<Station> nearbyStations(final double lat, final double lon, final int maxDistance, final int maxStations) throws IOException
{
throw new UnsupportedOperationException();
final String uri = String.format(NEARBY_URI, lon, lat);
final CharSequence page = ParserUtils.scrape(uri);
final List<Station> stations = new ArrayList<Station>();
final Matcher mNearbyCoarse = P_NEARBY_COARSE.matcher(page);
while (mNearbyCoarse.find())
{
final Matcher mNearbyFine = P_NEARBY_FINE.matcher(mNearbyCoarse.group(1));
if (mNearbyFine.matches())
{
final String sName = mNearbyFine.group(1).trim();
final int sId = Integer.parseInt(mNearbyFine.group(2));
final double sLon = latLonToDouble(Integer.parseInt(mNearbyFine.group(3)));
final double sLat = latLonToDouble(Integer.parseInt(mNearbyFine.group(4)));
final Station station = new Station(sId, sName, sLat, sLon, 0, null, null);
stations.add(station);
}
else
{
throw new IllegalArgumentException("cannot parse '" + mNearbyCoarse.group(1) + "' on " + uri);
}
}
if (maxStations == 0 || maxStations >= stations.size())
return stations;
else
return stations.subList(0, maxStations);
}
private static double latLonToDouble(int value)
{
return (double) value / 1000000;
}
public StationLocationResult stationLocation(final String stationId) throws IOException