You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
66 lines
1.6 KiB
Python
66 lines
1.6 KiB
Python
import time, datetime
|
|
|
|
def _cmptime(t1, t2):
|
|
if t1 is None and t2 is None:
|
|
return 0
|
|
elif t2 is None or (t1 is not None and t1 < t2):
|
|
return -1
|
|
elif t1 is None or (t2 is not None and t1 > t2):
|
|
return 1
|
|
return 0
|
|
|
|
def _time2datetime(t):
|
|
result = datetime.datetime(*time.strptime(t.toString("%Y-%m-%dT%H:%M:00Z"), "%Y-%m-%dT%H:%M:%SZ")[0:6])
|
|
result += datetime.timedelta(microseconds=float(t.toString("%S.%f")) * 1000000)
|
|
|
|
class StationResolver(object):
|
|
def __init__(self):
|
|
self.stationMap = {}
|
|
self.initialStations = set()
|
|
|
|
def collectStations(self, inventory, initial = False):
|
|
for ni in range(inventory.networkCount()):
|
|
n = inventory.network(ni)
|
|
for si in range(n.stationCount()):
|
|
s = n.station(si)
|
|
|
|
try:
|
|
if initial:
|
|
self.initialStations.add((n.code(), s.code()))
|
|
|
|
else:
|
|
self.initialStations.remove((n.code(), s.code()))
|
|
del self.stationMap[(n.code(), s.code())]
|
|
|
|
except KeyError:
|
|
pass
|
|
|
|
try:
|
|
item = self.stationMap[(n.code(), s.code())]
|
|
|
|
except KeyError:
|
|
item = []
|
|
self.stationMap[(n.code(), s.code())] = item
|
|
|
|
start = _time2datetime(s.start())
|
|
try: end = _time2datetime(s.end())
|
|
except: end = None
|
|
|
|
item.append((start, end, s.publicID()))
|
|
|
|
def resolveStation(self, ncode, scode, start, end):
|
|
result = set()
|
|
try:
|
|
for (s, e, publicID) in self.stationMap[(ncode, scode)]:
|
|
if _cmptime(start, e) <= 0 and _cmptime(end, s) >= 0:
|
|
result.add(publicID)
|
|
|
|
except KeyError:
|
|
pass
|
|
|
|
if not result:
|
|
raise Exception("Station reference %s,%s cannot be resolved" % (ncode, scode))
|
|
|
|
return result
|
|
|