1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 | #!/usr/bin/python # Copyright (C) 2007 Google Inc. # Copyright (C) 2008-2009 William Lachance # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. import transitfeed from transitfeed import ServicePeriod from optparse import OptionParser import yaml, sys, os.path import re stops = {} def ProcessOptions(schedule, options): # the follow features are REQUIRED agency_name = options.get('agency_name') agency_url = options.get('agency_url') agency_timezone = options.get('agency_timezone') service_periods = [] service_periods.append(ServicePeriod(id="weekday")) service_periods[0].SetWeekdayService() service_periods.append(ServicePeriod(id="saturday")) service_periods[1].SetDayOfWeekHasService(5) service_periods.append(ServicePeriod(id="sunday")) service_periods[2].SetDayOfWeekHasService(6) # the service period options are, well, optional for service_period in service_periods: if options.get('start_date'): service_period.SetStartDate(options['start_date']) if options.get('end_date'): service_period.SetEndDate(options['end_date']) if options.get('add_date'): service_period.SetDateHasService(options['add_date']) if options.get('remove_date'): service_period.SetDateHasService(options['remove_date'], has_service=False) # Add all service period objects to the schedule schedule.SetDefaultServicePeriod(service_periods[0], validate=False) schedule.AddServicePeriodObject(service_periods[1], validate=False) schedule.AddServicePeriodObject(service_periods[2], validate=False) if not (agency_name and agency_url and agency_timezone): print "You must provide agency information" schedule.NewDefaultAgency(agency_name=agency_name, agency_url=agency_url, agency_timezone=agency_timezone) # Remove any stops from stopsdata that aren't serviced by any routes in # routedata. def PruneStops(stopsdata, routedata): stopset = set() for route in routedata: stopset.update(route['time_points']) if len(route['between_stops']) > 0: for between_list in route['between_stops']: if route['between_stops'][between_list] != None: stopset.update(route['between_stops'][between_list]) toprune = list() for i, stop in enumerate(stopsdata): if stop['stop_code'] not in stopset: print "Pruning unused stop %s " % stop['stop_code'] toprune.append(i) # Prune the list in reverse order, as the indices will change otherwise. toprune.sort() toprune.reverse() for prunee in toprune: del stopsdata[prunee] def AddStops(schedule, stopsdata): for stopdata in stopsdata: stop_code = stopdata['stop_code'] # we have to manually add the stop instead of using AddStop, cause # we want the stop_code stop_id = unicode(len(schedule.stops)) stop = transitfeed.Stop(stop_id=stop_id, lat=stopdata['lat'], lng=stopdata['lng'], name=stopdata['name'], stop_code=stop_code) schedule.AddStopObject(stop) stops[stop_code] = stop def AddTripsToSchedule(schedule, route, routedata, service_id, stop_times): service_period = schedule.GetServicePeriod(service_id) timerex = re.compile('^(\d+)(\d\d)([a-z])$') for trip in stop_times: t = route.AddTrip(schedule, headsign=routedata['long_name'], service_period=service_period) if len(trip) > len(routedata['time_points']): print "Length of trip (%s) exceeds number of time points (%s)!" % (len(trip), len(routedata['time_points'])) class StopTimesError(Exception): pass raise StopTimesError() else: trip_stops = [] # Build a list of (time, stop_code) tuples i = 0 for stop_time in trip: matches = timerex.match(str(stop_time)) if matches and len(matches.groups()) == 3: hour, minute, shift = (int(matches.group(1)), str(matches.group(2)), matches.group(3)) if shift == 'p' and hour < 12: hour += 12 elif shift == 'x': if hour == 12: hour += 12 else: hour += 24 # munge hours and minutes if they're < 10 if hour < 10: hour = "0" + str(hour) clock_time = str(hour) + ":" + minute + ":00" seconds = transitfeed.TimeToSecondsSinceMidnight(clock_time) trip_stops.append((seconds, routedata['time_points'][i]) ) elif re.search(r'^\-$', str(stop_time)): pass else: class InvalidStopTimeError(Exception): pass raise InvalidStopTimeError, 'Bad stoptime "%s"' % stop_time i = i + 1 trip_stops.sort() # Sort by time prev_stop_code = None between_stops = routedata.get('between_stops') for (time, stop_code) in trip_stops: if prev_stop_code and between_stops: between_stop_list = between_stops.get('%s-%s' % (prev_stop_code, stop_code)) if between_stop_list: for between_stop_code in between_stop_list: t.AddStopTime(stop=stops[between_stop_code]) t.AddStopTime(stop=stops[stop_code], arrival_secs=time, departure_secs=time) prev_stop_code = stop_code def AddRouteToSchedule(schedule, routedata): r = schedule.AddRoute(short_name=str(routedata['short_name']), long_name=routedata['long_name'], route_type='Bus') if routedata.get('stop_times'): AddTripsToSchedule(schedule, r, routedata, "weekday", routedata['stop_times']) if routedata.get('stop_times_saturday'): AddTripsToSchedule(schedule, r, routedata, "saturday", routedata['stop_times_saturday']) if routedata.get('stop_times_sunday'): AddTripsToSchedule(schedule, r, routedata, "sunday", routedata['stop_times_sunday']) def main(): parser = OptionParser() parser.add_option('--input', dest='input', help='Path of input file') parser.add_option('--output', dest='output', help='Path of output file, should end in .zip') parser.set_defaults(output='feed.zip') (options, args) = parser.parse_args() schedule = transitfeed.Schedule() stream = open(options.input, 'r') data = yaml.load(stream) ProcessOptions(schedule, data['options']) PruneStops(data['stops'], data['routes']) AddStops(schedule, data['stops']) for route in data['routes']: AddRouteToSchedule(schedule, route) schedule.WriteGoogleTransitFeed(options.output) if __name__ == '__main__': main() |