[seiscomp, scanloc] Install, add .gitignore

lib/python/nettab/stationResolver.py

@@ -0,0 +1,65 @@
+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
+