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"""
Copyright (c) 2012, NOVI Consortium, European FP7 NOVI Project
Copyright according to BSD License
For full text of the license see: ./novi/Software/Monitoring/MonitoringTool/PacketTracking/license.txt
@author <a href="mailto:ramon.masek@fokus.fraunhofer.de">Ramon Masek</a>, Fraunhofer FOKUS
@author <a href="mailto:c.henke@tu-berlin.de">Christian Henke</a>, Technical University Berlin
@author <a href="mailto:carsten.schmoll@fokus.fraunhofer.de">Carsten Schmoll</a>, Fraunhofer FOKUS
@author <a href="mailto:Julian.Vetter@campus.tu-berlin.de">Julian Vetter</a>, Fraunhofer FOKUS
@author <a href="mailto:">Jens Krenzin</a>, Fraunhofer FOKUS
@author <a href="mailto:">Michael Gehring</a>, Fraunhofer FOKUS
@author <a href="mailto:">Tacio Grespan Santos</a>, Fraunhofer FOKUS
@author <a href="mailto:">Fabian Wolff</a>, Fraunhofer FOKUS
"""
from time import mktime
from Task.Passive.Monitoring.Database.DBConnector import DBConnector
class DBAccess(DBConnector):
def __init__(self, host = "127.0.0.1", port = 5432,
db = "dump", user = "user", pwd = "pwd"):
DBConnector.__init__(self, host, port, db, user, pwd)
def selectDelayEntrys(self, startTime, stopTime, nodeOid):
"""
Function to select a set of delay information from the database. The
statement calls 'SELECT num, sumbytes, sumdelay, mindelay, maxdelay FROM
delays WHERE (ts >= startTime AND ts <= stopTime) AND (src = nodeOid OR
dst = nodeOid);'.
@type startTime: struct_time
@param startTime: A sequence of 9 integers, as returned from
gmtime(), localtime() or strptime().
@type stopTime: struct_time
@param stopTime: A sequence of 9 integers, as returned from
gmtime(), localtime() or strptime().
@rtype: list
@return: List of rows that match the time interval and also
the nodes OID
"""
startTimeString = str(int(mktime(startTime)*1000*1000)) # sec->musec
stopTimeString = str(int(mktime(stopTime)*1000*1000)) # sec->musec
statement = ("SELECT num, sumbytes, sumdelay, mindelay, maxdelay "
"FROM hop_delays WHERE (ts >= " + startTimeString +
" AND ts <= " + stopTimeString + ") AND (src = " +
str(nodeOid) + " OR dst = " + str(nodeOid) + ");")
connection = self.connect()
rows = self.executeSelect(connection, statement)
self.disconnect(connection)
return rows
def selectActivityEntries(self, startTime, stopTime, nodeOid):
"""
Method to get the activity of a node (number of packets in the defined
time interval).
@type startTime: struct_time
@param startTime: A sequence of 9 integers, as returned from
gmtime(), localtime() or strptime().
@type stopTime: struct_time
@param stopTime: A sequence of 9 integers, as returned from
gmtime(), localtime() or strptime().
@rtype: list
@return: List of rows that match the time interval and also
the nodes OID
"""
startTimeString = str(int(mktime(startTime)*1000*1000)) # sec->musec
stopTimeString = str(int(mktime(stopTime)*1000*1000)) # sec->musec
statement = ("SELECT num FROM hop_delays WHERE (ts >= " +
startTimeString + " AND ts <= " + stopTimeString + ") "
"AND (src = " + str(nodeOid) + " OR dst = "
+ str(nodeOid) + ");")
connection = self.connect()
rows = self.executeSelect(connection, statement)
self.disconnect(connection)
return rows
def selectPathDelays(self, startTime, stopTime, srcOid, dstOid):
startTimeString = str(int(mktime(startTime)*1000*1000)) # sec->musec
stopTimeString = str(int(mktime(stopTime)*1000*1000)) # sec->musec
statement = ("SELECT num, sumbytes, sumdelay, mindelay, maxdelay, path "
"FROM path_delays WHERE (ts >= " + startTimeString +
" AND ts <= " + stopTimeString + ") AND (src = " +
str(srcOid) + " AND dst = " + str(dstOid) + ") "
"ORDER BY path ASC;")
connection = self.connect()
rows = self.executeSelect(connection, statement)
self.disconnect(connection)
return rows
def selectHopDelays(self, startTime, stopTime, srcOid, dstOid):
startTimeString = str(int(mktime(startTime)*1000*1000)) # sec->musec
stopTimeString = str(int(mktime(stopTime)*1000*1000)) # sec->musec
statement = ("SELECT num, sumbytes, sumdelay, mindelay, maxdelay, ts "
"FROM hop_delays WHERE (ts >= " + startTimeString +
" AND ts <= " + stopTimeString + ") AND (src = " +
str(srcOid) + " AND dst = " + str(dstOid) + ");")
connection = self.connect()
rows = self.executeSelect(connection, statement)
self.disconnect(connection)
return rows
def purgeDelayDB(self, startTime, stopTime):
"""
Function to remove a set of observed tracks from the database in the
interval between 'StartTime' and 'StopTime'. The statement calls 'DELETE
FROM delays WHERE (ts >= startTime AND ts <= stopTime);'
@type startTime: struct_time
@param startTime: A sequence of 9 integers, as returned from
gmtime(), localtime() or strptime().
@type stopTime: struct_time
@param stopTime: A sequence of 9 integers, as returned from
gmtime(), localtime() or strptime().
@rtype: Integer
@return: Returns the number of purged rows on success -1
otherwise.
"""
startTimeString = str(int(mktime(startTime)*1000*1000)) # sec->musec
stopTimeString = str(int(mktime(stopTime)*1000*1000)) # sec->musec
statement = ("DELETE FROM hop_delays WHERE (ts >= " + startTimeString +
" AND ts <= " + stopTimeString + ");")
connection = self.connect()
self.executeUpdate(connection, statement)
self.disconnect(connection)
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