python.AtlCoolLib.TimeStampToRLB Class Reference

Collaboration diagram for python.AtlCoolLib.TimeStampToRLB:

Public Member Functions
def	__init__ (self, dbconn, iovstart, iovend)
def	getRLB (self, timestamp, StartType=True)

Public Attributes
	StartTime
	EndTime
	since
	until
	TSBeginMap
	TSEndMap
	RLMap
	readdb

Detailed Description

Definition at line 454 of file AtlCoolLib.py.

Constructor & Destructor Documentation

__init__()

def python.AtlCoolLib.TimeStampToRLB.__init__	(		self,
			dbconn,
			iovstart,
			iovend
	)

Definition at line 457 of file AtlCoolLib.py.

    def __init__(self,dbconn,iovstart,iovend):
        "Initialise and cache using the given DB connection, for RLB start/end"
        # dbconn must correspond to COOLONL_TRIGGER/COMP200
        self.StartTime = -1
        self.EndTime = -1
        self.since=iovstart
        self.until=iovend
        self.TSBeginMap = []
        self.TSEndMap = []
        self.RLMap = []     
        self.readdb = dbconn
 
        lblbname='/TRIGGER/LUMI/LBLB'
        try:
            readfolder=self.readdb.getFolder(lblbname)
        except Exception as e:
            print (e)
            print ("Could not access folder %s " % lblbname)
            raise RuntimeError ("TimeStampToRLB initialisation error")
        # First try to read timestamp info            
        isFirst=True
        try:
            readobjs=readfolder.browseObjects(self.since,self.until,cool.ChannelSelection.all())
            while readobjs.goToNext():
                readobj=readobjs.currentRef()
                payload=readobj.payload()
                if (isFirst is True):
                    isFirst=False
                    self.StartTime=payload['StartTime']
                else:
                    self.EndTime = payload['EndTime']
        except Exception as e:
            print (e)
            print ("Problem reading data from folder %s" % lblbname)
            raise RuntimeError ("TimeStampToRLB: initialisation error")
        if (self.StartTime==-1):
            raise RuntimeError ("TimeStampToRLB: no data for given runs")
        
        # Now try to read the LBTIME folder to translate timestamps into run/lumi blocks
        lbtimename='/TRIGGER/LUMI/LBTIME'
        try:
            readfolder=self.readdb.getFolder(lbtimename)
        except Exception as e:
            print (e)
            print ("Problem accessing folder %s" % lbtimename)
            raise RuntimeError ("TimeStampToRLB: Initialisation error")
        try:
            readobjs=readfolder.browseObjects(self.StartTime, self.EndTime, cool.ChannelSelection.all())
            while readobjs.goToNext():
                readobj=readobjs.currentRef()
                payload=readobj.payload()
                TimeStampStart = readobj.since()
                TimeStampEnd = readobj.until()
                iov=(payload['Run'] << 32)+payload['LumiBlock']
                self.TSBeginMap+=[TimeStampStart]
                self.TSEndMap+=[TimeStampEnd]
                self.RLMap+=[iov]
        except Exception as e:
            print (e)
            print ("Problem reading from folder %s" % lbtimename)
            raise RuntimeError ("TimeStampToRLB: Time data access error")
        print ("TimeStampToRLB initialised with %i entries in map" % len(self.RLMap))
 

Member Function Documentation

getRLB()

def python.AtlCoolLib.TimeStampToRLB.getRLB	(		self,
			timestamp,
			StartType = True
	)

Lookup a timestamp value. If it is outside a run, round up to next
run (StartType=True) or down to previous (StartType=False)

Definition at line 520 of file AtlCoolLib.py.

    def getRLB(self,timestamp,StartType=True):
        """Lookup a timestamp value. If it is outside a run, round up to next
run (StartType=True) or down to previous (StartType=False)"""
 
        # New version. Let's take advantage of the fact that the DB entries should be time-ordered
        if (StartType):
            for TSbegin, RL in zip(self.TSBeginMap, self.RLMap):
                if (timestamp <= TSbegin):
                    return RL
            # Timestamp above cached endtime - return endtime
            return self.until
                
        else:
            for TSend, RL in reversed(zip(self.TSEndMap, self.RLMap)):
                if (timestamp >= TSend):
                    return RL
            # Timestamp below cached starttime - return starttime
            return self.since
 
 
    
# main code - run test of library functions

Member Data Documentation

EndTime

python.AtlCoolLib.TimeStampToRLB.EndTime

Definition at line 461 of file AtlCoolLib.py.

readdb

python.AtlCoolLib.TimeStampToRLB.readdb

Definition at line 467 of file AtlCoolLib.py.

RLMap

python.AtlCoolLib.TimeStampToRLB.RLMap

Definition at line 466 of file AtlCoolLib.py.

since

python.AtlCoolLib.TimeStampToRLB.since

Definition at line 462 of file AtlCoolLib.py.

StartTime

python.AtlCoolLib.TimeStampToRLB.StartTime

Definition at line 460 of file AtlCoolLib.py.

TSBeginMap

python.AtlCoolLib.TimeStampToRLB.TSBeginMap

Definition at line 464 of file AtlCoolLib.py.

TSEndMap

python.AtlCoolLib.TimeStampToRLB.TSEndMap

Definition at line 465 of file AtlCoolLib.py.

until

python.AtlCoolLib.TimeStampToRLB.until

Definition at line 463 of file AtlCoolLib.py.

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The documentation for this class was generated from the following file:

• AtlCoolLib.py