python.AtlCoolLib.TimeStampToRLB Class Reference

Collaboration diagram for python.AtlCoolLib.TimeStampToRLB:

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

Public Attributes
int	StartTime = -1
int	EndTime = -1
	since = iovstart
	until = iovend
list	TSBeginMap = []
list	TSEndMap = []
list	RLMap = []
	readdb = dbconn

Detailed Description

Definition at line 453 of file AtlCoolLib.py.

Constructor & Destructor Documentation

__init__()

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

Definition at line 456 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()

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 519 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

int python.AtlCoolLib.TimeStampToRLB.EndTime = -1

Definition at line 460 of file AtlCoolLib.py.

readdb

python.AtlCoolLib.TimeStampToRLB.readdb = dbconn

Definition at line 466 of file AtlCoolLib.py.

RLMap

python.AtlCoolLib.TimeStampToRLB.RLMap = []

Definition at line 465 of file AtlCoolLib.py.

since

python.AtlCoolLib.TimeStampToRLB.since = iovstart

Definition at line 461 of file AtlCoolLib.py.

StartTime

int python.AtlCoolLib.TimeStampToRLB.StartTime = -1

Definition at line 459 of file AtlCoolLib.py.

TSBeginMap

python.AtlCoolLib.TimeStampToRLB.TSBeginMap = []

Definition at line 463 of file AtlCoolLib.py.

TSEndMap

python.AtlCoolLib.TimeStampToRLB.TSEndMap = []

Definition at line 464 of file AtlCoolLib.py.

until

python.AtlCoolLib.TimeStampToRLB.until = iovend

Definition at line 462 of file AtlCoolLib.py.

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

• AtlCoolLib.py