summaryrefslogtreecommitdiffstats
path: root/Src/PyCatcher/src/localAreaDatabse.py
diff options
context:
space:
mode:
Diffstat (limited to 'Src/PyCatcher/src/localAreaDatabse.py')
-rw-r--r--Src/PyCatcher/src/localAreaDatabse.py93
1 files changed, 93 insertions, 0 deletions
diff --git a/Src/PyCatcher/src/localAreaDatabse.py b/Src/PyCatcher/src/localAreaDatabse.py
new file mode 100644
index 0000000..3cded04
--- /dev/null
+++ b/Src/PyCatcher/src/localAreaDatabse.py
@@ -0,0 +1,93 @@
+import sqlite3
+import os
+from pyCatcherModel import BaseStationInformation
+from settings import Database_path
+class LocalAreaDatabase:
+
+ def __init__(self):
+ self._connection = None
+ self._cursor = None
+
+ def load_or_create_database(self, name):
+ if self._connection:
+ self._connection.close()
+ self._connection = None
+
+ name += '.db'
+ path = os.path.join(Database_path ,name)
+
+ database_exists = os.path.exists(path)
+ self._connection = sqlite3.connect(path)
+ self._cursor = self._connection.cursor()
+ if not database_exists:
+ self._create_base_table()
+
+ def _create_base_table(self):
+ sql = '''CREATE TABLE basestations(
+ cellid INTEGER, country TEXT, provider TEXT, arfcn INTEGER, bsic TEXT, lac INTEGER,
+ rxmin INTEGER, rxmax INTEGER, sightings INTEGER
+ )
+ '''
+ self._cursor.execute(sql)
+ self._connection.commit()
+
+ def _insert_station(self, base_station):
+ values = ( base_station.cell,
+ base_station.country,
+ base_station.provider,
+ base_station.arfcn,
+ base_station.bsic,
+ base_station.lac,
+ base_station.rxlev,
+ base_station.rxlev,
+ 1
+ )
+ sql = 'INSERT INTO basestations VALUES (?,?,?,?,?,?,?,?,?)'
+ self._cursor.execute(sql, values)
+ self._connection.commit()
+
+ def _alter_station(self, base_station, old_rmin, old_rmax, old_sightings):
+
+ current_rx = int(base_station.rxlev)
+
+ if current_rx < old_rmin:
+ rmin = current_rx
+ else:
+ rmin = old_rmin
+ if current_rx > old_rmax:
+ rmax = current_rx
+ else:
+ rmax = old_rmax
+ sightings = old_sightings + 1
+ values = (rmin,rmax,sightings,base_station.cell)
+ sql = 'UPDATE basestations SET rxmin=?, rxmax=?, sightings=? WHERE cellid=?'
+ self._cursor.execute(sql, values)
+ self._connection.commit()
+
+ def get_station(self, cellID):
+ if not self._connection:
+ return None
+ sql = 'SELECT * FROM basestations WHERE cellid =%d'%cellID
+ self._cursor.execute(sql)
+ try:
+ result = (self._cursor.fetchall())[0]
+ except:
+ result = None
+ return result
+
+ def insert_or_alter_base_stations(self, base_station_list):
+ for station in base_station_list:
+ self.insert_or_alter_base_station(station)
+
+ def insert_or_alter_base_station(self, base_station):
+ lookupresult = self.get_station(base_station.cell)
+ if lookupresult:
+ self._alter_station(base_station,lookupresult[6],lookupresult[7],lookupresult[8])
+ else:
+ self._insert_station(base_station)
+
+ def __del__(self):
+ if self._cursor:
+ self._cursor.close()
+ if self._connection:
+ self._connection.close() \ No newline at end of file