Initial commit

src/python/modes_sql.py

@@ -0,0 +1,85 @@
+#!/usr/bin/env python
+import time, os, sys
+from string import split, join
+from modes_parse import *
+
+def modes_sql(message):
+
+	#assembles a MySQLdb query tailored to Owen's database
+	#this version ignores anything that isn't Type 17 for now, because we just don't care
+
+	[msgtype, shortdata, longdata, parity, ecc, reference] = message.split()
+
+	shortdata = long(shortdata, 16)
+	longdata = long(longdata, 16)
+	parity = long(parity, 16)
+	ecc = long(ecc, 16)
+#	reference = float(reference)
+
+	msgtype = int(msgtype)
+
+	query = None
+
+#	if msgtype == 0:
+#		query = sql0(shortdata, parity, ecc)
+#	elif msgtype == 4:
+#		query = sql4(shortdata, parity, ecc)
+#	elif msgtype == 5:
+#		query = sql5(shortdata, parity, ecc)
+#	elif msgtype == 11:
+#		query = sql11(shortdata, parity, ecc)
+#	elif msgtype == 17:
+	if msgtype == 17:
+		query = sql17(shortdata, longdata, parity, ecc)
+#	elif msgtype == 20:
+#		output = parse20(shortdata, longdata, parity, ecc)
+#	else:
+		#output = "No handler for message type " + str(msgtype) + " from " + str(ecc)
+
+#	output = "(%.0f) " % float(reference) + output
+
+	return query
+
+def sql17(shortdata, longdata, parity, ecc):
+	icao24 = shortdata & 0xFFFFFF	
+	subtype = (longdata >> 51) & 0x1F
+
+	retstr = None
+
+	if subtype == 4:
+		msg = parseBDS08(shortdata, longdata, parity, ecc)
+		retstr = "INSERT INTO plane_metadata (icao, ident) VALUES ('" + "%x" % icao24 + "', '" + msg + "') ON DUPLICATE KEY UPDATE seen=now(), ident=values(ident)"
+
+	elif subtype >= 5 and subtype <= 8:
+		[altitude, decoded_lat, decoded_lon, rnge, bearing] = parseBDS06(shortdata, longdata, parity, ecc)
+		if decoded_lat is None: #no unambiguously valid position available
+			retstr = None
+		else:
+			retstr = "INSERT INTO plane_positions (icao, seen, alt, lat, lon) VALUES ('" + "%x" % icao24 + "', now(), " + str(altitude) + ", " + "%.6f" % decoded_lat + ", " + "%.6f" % decoded_lon + ")"
+
+	elif subtype >= 9 and subtype <= 18 and subtype != 15: #i'm eliminating type 15 records because they don't appear to be valid position reports.
+		[altitude, decoded_lat, decoded_lon, rnge, bearing] = parseBDS05(shortdata, longdata, parity, ecc)
+		if decoded_lat is None: #no unambiguously valid position available
+			retstr = None
+		else:
+			retstr = "INSERT INTO plane_positions (icao, seen, alt, lat, lon) VALUES ('" + "%x" % icao24 + "', now(), " + str(altitude) + ", " + "%.6f" % decoded_lat + ", " + "%.6f" % decoded_lon + ")"
+
+	elif subtype == 19:
+		subsubtype = (longdata >> 48) & 0x07
+		if subsubtype == 0:
+			[velocity, heading, vert_spd] = parseBDS09_0(shortdata, longdata, parity, ecc)
+			retstr = "INSERT INTO plane_metadata (icao, seen, speed, heading, vertical) VALUES ('" + "%x" % icao24 + "', now(), " + "%.0f" % velocity + ", " + "%.0f" % heading + ", " + "%.0f" % vert_spd + ") ON DUPLICATE KEY UPDATE seen=now(), speed=values(speed), heading=values(heading), vertical=values(vertical)"
+
+		elif subsubtype == 1:
+			[velocity, heading, vert_spd] = parseBDS09_1(shortdata, longdata, parity, ecc)
+			retstr = "INSERT INTO plane_metadata (icao, seen, speed, heading, vertical) VALUES ('" + "%x" % icao24 + "', now(), " + "%.0f" % velocity + ", " + "%.0f" % heading + ", " + "%.0f" % vert_spd + ") ON DUPLICATE KEY UPDATE seen=now(), speed=values(speed), heading=values(heading), vertical=values(vertical)"
+
+	else:
+		print "debug (modes_sql): unknown subtype %i with data %x %x %x" % (subtype, shortdata, longdata, parity,)
+
+
+	return retstr
+
+
+
+