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''' |
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Warning, this is an "private" class to the TFL object |
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You shouldn't reference this directly in your code as |
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there is minimal type checking and exception handling |
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''' |
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import requests, xmltodict |
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from collections import OrderedDict |
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9
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class TFLapi(object): |
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def __init__(self): |
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12
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self.detail_url = "http://cloud.tfl.gov.uk/TrackerNet/PredictionDetailed/%(line)s/%(station)s" |
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def _getDetailedXML(self, station, line): |
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url = self.detail_url % { 'station' : station, 'line' : line} |
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rxml = requests.get(url).text.replace(u"\xef\xbb\xbf", "") #strange unicode error |
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return rxml |
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def getDetailed(self, station=None, line=None): |
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if (station is None) or (line is None): |
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return None |
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return APIDetail(xml=self._getDetailedXML(station, line) ) |
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class APIDetail(object): |
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def __init__(self, xml=None): |
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if xml is None: |
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Exception("Need XML") |
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self.xml = xml |
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self.xmlDict = xmltodict.parse(self.xml) |
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self.station = None |
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self.line = None |
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self._processHeader() |
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self.platforms = [] |
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self._processPlatforms() |
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40
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def _processHeader(self): |
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self.line = self.xmlDict['ROOT']['Line'] |
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self.station = self.xmlDict['ROOT']['S']['@Code'] |
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45
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def _processPlatforms(self): |
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platforms = self.xmlDict['ROOT']['S']['P'] |
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for plat in platforms: |
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self.platforms.append( DetailPlatform(plat) ) |
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50
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51
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class DetailPlatform(object): |
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def __init__(self, xmlDict): |
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self.trains = [] |
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54
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self.name = None |
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self.platform_number = None |
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56
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self.track_code = None |
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57
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self.next_train = None |
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58
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59
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self.xmlDict = xmlDict |
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60
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if type(xmlDict) is OrderedDict: |
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self.name = xmlDict['@N'] |
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self.platform_number = xmlDict['@Num'] |
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63
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self.track_code = xmlDict['@TrackCode'] |
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64
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self.next_train = xmlDict['@NextTrain'] |
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66
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self._processTrains() |
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67
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68
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69
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def _processTrains(self): |
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if self.xmlDict.has_key('T'): |
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trains = self.xmlDict['T'] |
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for t in trains: |
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try: |
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74
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self.trains.append( DetailTrain(t) ) |
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75
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except: |
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76
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#TODO: May be dropping a train on the floor here |
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pass |
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78
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79
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80
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class DetailTrain(object): |
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81
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def __init__(self, xmlDict): |
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82
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if (type(xmlDict) is not OrderedDict): |
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83
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raise Exception("xmlDict does not contain a train") |
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84
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self.xmlDict = xmlDict |
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85
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#'true' if True else 'false' |
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86
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self.leadingcar_id = xmlDict["@LCID"] |
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87
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self.set_number = xmlDict['@SetNo'] |
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88
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self.trip_number = xmlDict['@TripNo'] |
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89
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self.arrival_seconds = xmlDict['@SecondsTo'] |
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90
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self.arrival_time = xmlDict['@TimeTo'] |
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91
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self.current_location = xmlDict['@Location'] |
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92
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self.destination = xmlDict['@Destination'] |
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93
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self.destination_code = xmlDict['@DestCode'] |
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94
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self.platform_departure_time = xmlDict['@DepartTime'] |
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95
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self.interval_between_previous_train = xmlDict['@DepartInterval'] |
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96
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self.departed_current_station = xmlDict['@Departed'] |
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97
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self.direction = xmlDict['@Direction'] |
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98
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self.track_code = xmlDict['@TrackCode'] |
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99
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adamgilman /
tube-python
