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parse messages

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git-svn-id: https://public-transport-enabler.googlecode.com/svn/trunk@543 0924bc21-9374-b0fa-ee44-9ff1593b38f0
This commit is contained in:
andreas.schildbach@gmail.com 2011-03-31 14:30:41 +00:00
parent 93e0e3c4ad
commit b105904d09
1 changed files with 49 additions and 17 deletions
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66
src/de/schildbach/pte/BvgProvider.java
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@ -608,18 +608,12 @@ public final class BvgProvider extends AbstractHafasProvider
return uri.toString(); return uri.toString();
} }
private static final Pattern P_DEPARTURES_HEAD = Pattern.compile(".*?" // private static final Pattern P_DEPARTURES_PLAN_HEAD = Pattern.compile(".*?" //
+ "<strong>(.*?)</strong>.*?Datum:\\s*([^<\n]+)[<\n].*?" // + "<strong>(.*?)</strong>.*?Datum:\\s*([^<\n]+)[<\n].*?" //
, Pattern.DOTALL); , Pattern.DOTALL);
private static final Pattern P_DEPARTURES_COARSE = Pattern.compile("" // private static final Pattern P_DEPARTURES_PLAN_COARSE = Pattern.compile("" //
+ "<tr class=\"ivu_table_bg\\d\">\\s*((?:<td class=\"ivu_table_c_dep\">|<td>).+?)\\s*</tr>" // + "<tr class=\"ivu_table_bg\\d\">\\s*((?:<td class=\"ivu_table_c_dep\">|<td>).+?)\\s*</tr>" //
, Pattern.DOTALL); , Pattern.DOTALL);
private static final Pattern P_DEPARTURES_LIVE_FINE = Pattern.compile("" //
+ "<td class=\"ivu_table_c_dep\">\\s*(\\d{1,2}:\\d{2})\\s*" // time
+ "(\\*)?\\s*</td>\\s*" // planned
+ "<td class=\"ivu_table_c_line\">\\s*(.*?)\\s*</td>\\s*" // line
+ "<td>.*?<a.*?[^-]>\\s*(.*?)\\s*</a>.*?</td>" // destination
, Pattern.DOTALL);
private static final Pattern P_DEPARTURES_PLAN_FINE = Pattern.compile("" // private static final Pattern P_DEPARTURES_PLAN_FINE = Pattern.compile("" //
+ "<td><strong>(\\d{1,2}:\\d{2})</strong></td>.*?" // time + "<td><strong>(\\d{1,2}:\\d{2})</strong></td>.*?" // time
+ "<strong>\\s*(.*?)[\\s\\*]*</strong>.*?" // line + "<strong>\\s*(.*?)[\\s\\*]*</strong>.*?" // line
@ -627,11 +621,32 @@ public final class BvgProvider extends AbstractHafasProvider
+ "<a href=\"/Fahrinfo/bin/stboard\\.bin/dox/dox.*?evaId=(\\d+)&[^>]*>" // destinationId + "<a href=\"/Fahrinfo/bin/stboard\\.bin/dox/dox.*?evaId=(\\d+)&[^>]*>" // destinationId
+ "\\s*(.*?)\\s*</a>.*?" // destination + "\\s*(.*?)\\s*</a>.*?" // destination
, Pattern.DOTALL); , Pattern.DOTALL);
private static final Pattern P_DEPARTURES_LIVE_ERRORS = Pattern.compile("(Haltestelle:)|(Wartungsgr&uuml;nden)|(http-equiv=\"refresh\")",
Pattern.CASE_INSENSITIVE);
private static final Pattern P_DEPARTURES_PLAN_ERRORS = Pattern.compile("(derzeit leider nicht bearbeitet werden)|(Wartungsarbeiten)|" private static final Pattern P_DEPARTURES_PLAN_ERRORS = Pattern.compile("(derzeit leider nicht bearbeitet werden)|(Wartungsarbeiten)|"
+ "(http-equiv=\"refresh\")", Pattern.CASE_INSENSITIVE); + "(http-equiv=\"refresh\")", Pattern.CASE_INSENSITIVE);
private static final Pattern P_DEPARTURES_LIVE_HEAD = Pattern.compile(".*?" //
+ "<strong>(.*?)</strong>.*?Datum:\\s*([^<\n]+)[<\n].*?" //
, Pattern.DOTALL);
private static final Pattern P_DEPARTURES_LIVE_COARSE = Pattern.compile("" //
+ "<tr class=\"ivu_table_bg\\d\">\\s*((?:<td class=\"ivu_table_c_dep\">|<td>).+?)\\s*</tr>" //
, Pattern.DOTALL);
private static final Pattern P_DEPARTURES_LIVE_FINE = Pattern.compile("" //
+ "<td class=\"ivu_table_c_dep\">\\s*(\\d{1,2}:\\d{2})\\s*" // time
+ "(\\*)?\\s*</td>\\s*" // planned
+ "<td class=\"ivu_table_c_line\">\\s*(.*?)\\s*</td>\\s*" // line
+ "<td>.*?<a.*?[^-]>\\s*(.*?)\\s*</a>.*?</td>" // destination
, Pattern.DOTALL);
private static final Pattern P_DEPARTURES_LIVE_MSGS_COARSE = Pattern.compile("" //
+ "<tr class=\"ivu_table_bg\\d\">\\s*(<td class=\"ivu_table_c_line\">.+?)\\s*</tr>" //
, Pattern.DOTALL);
private static final Pattern P_DEPARTURES_LIVE_MSGS_FINE = Pattern.compile("" //
+ "<td class=\"ivu_table_c_line\">\\s*(.*?)\\s*</td>\\s*" // line
+ "<td class=\"ivu_table_c_dep\">\\s*(\\d{2}\\.\\d{2}\\.\\d{4})\\s*</td>\\s*" // date
+ "<td>([^<]*)</td>" // message
, Pattern.DOTALL);
private static final Pattern P_DEPARTURES_LIVE_ERRORS = Pattern.compile("(Haltestelle:)|(Wartungsgr&uuml;nden)|(http-equiv=\"refresh\")",
Pattern.CASE_INSENSITIVE);
public QueryDeparturesResult queryDepartures(final String stationId, final int maxDepartures, final boolean equivs) throws IOException public QueryDeparturesResult queryDepartures(final String stationId, final int maxDepartures, final boolean equivs) throws IOException
{ {
final QueryDeparturesResult result = new QueryDeparturesResult(); final QueryDeparturesResult result = new QueryDeparturesResult();
@ -654,17 +669,35 @@ public final class BvgProvider extends AbstractHafasProvider
} }
// parse page // parse page
final Matcher mHead = P_DEPARTURES_HEAD.matcher(page); final Matcher mHead = P_DEPARTURES_LIVE_HEAD.matcher(page);
if (mHead.matches()) if (mHead.matches())
{ {
final String location = ParserUtils.resolveEntities(mHead.group(1)); final String location = ParserUtils.resolveEntities(mHead.group(1));
final Calendar currentTime = new GregorianCalendar(timeZone()); final Calendar currentTime = new GregorianCalendar(timeZone());
currentTime.clear(); currentTime.clear();
parseDateTime(currentTime, mHead.group(2)); parseDateTime(currentTime, mHead.group(2));
final Map<String, String> messages = new HashMap<String, String>();
final Matcher mMsgsCoarse = P_DEPARTURES_LIVE_MSGS_COARSE.matcher(page);
while (mMsgsCoarse.find())
{
final Matcher mMsgsFine = P_DEPARTURES_LIVE_MSGS_FINE.matcher(mMsgsCoarse.group(1));
if (mMsgsFine.matches())
{
final String line = normalizeLine(ParserUtils.resolveEntities(mMsgsFine.group(1)));
final String message = ParserUtils.resolveEntities(mMsgsFine.group(3));
messages.put(line, message);
}
else
{
throw new IllegalArgumentException("cannot parse '" + mMsgsCoarse.group(1) + "' on " + uri);
}
}
final List<Departure> departures = new ArrayList<Departure>(8); final List<Departure> departures = new ArrayList<Departure>(8);
// choose matcher final Matcher mDepCoarse = P_DEPARTURES_LIVE_COARSE.matcher(page);
final Matcher mDepCoarse = P_DEPARTURES_COARSE.matcher(page);
while (mDepCoarse.find()) while (mDepCoarse.find())
{ {
final Matcher mDepFine = P_DEPARTURES_LIVE_FINE.matcher(mDepCoarse.group(1)); final Matcher mDepFine = P_DEPARTURES_LIVE_FINE.matcher(mDepCoarse.group(1));
@ -695,7 +728,7 @@ public final class BvgProvider extends AbstractHafasProvider
final String destination = ParserUtils.resolveEntities(mDepFine.group(4)); final String destination = ParserUtils.resolveEntities(mDepFine.group(4));
final Departure dep = new Departure(plannedTime, predictedTime, line, line != null ? lineColors(line) : null, null, position, final Departure dep = new Departure(plannedTime, predictedTime, line, line != null ? lineColors(line) : null, null, position,
destinationId, destination, null); destinationId, destination, messages.get(line));
if (!departures.contains(dep)) if (!departures.contains(dep))
departures.add(dep); departures.add(dep);
} }
@ -732,7 +765,7 @@ public final class BvgProvider extends AbstractHafasProvider
} }
// parse page // parse page
final Matcher mHead = P_DEPARTURES_HEAD.matcher(page); final Matcher mHead = P_DEPARTURES_PLAN_HEAD.matcher(page);
if (mHead.matches()) if (mHead.matches())
{ {
final String location = ParserUtils.resolveEntities(mHead.group(1)); final String location = ParserUtils.resolveEntities(mHead.group(1));
@ -741,8 +774,7 @@ public final class BvgProvider extends AbstractHafasProvider
ParserUtils.parseGermanDate(currentTime, mHead.group(2)); ParserUtils.parseGermanDate(currentTime, mHead.group(2));
final List<Departure> departures = new ArrayList<Departure>(8); final List<Departure> departures = new ArrayList<Departure>(8);
// choose matcher final Matcher mDepCoarse = P_DEPARTURES_PLAN_COARSE.matcher(page);
final Matcher mDepCoarse = P_DEPARTURES_COARSE.matcher(page);
while (mDepCoarse.find()) while (mDepCoarse.find())
{ {
final Matcher mDepFine = P_DEPARTURES_PLAN_FINE.matcher(mDepCoarse.group(1)); final Matcher mDepFine = P_DEPARTURES_PLAN_FINE.matcher(mDepCoarse.group(1));