ClassesDefXmlUtils Namespace Reference

Classes
class	XmlParser

Functions
def	checkClass (name, version, versionsToChecksums)
def	initCheckClass ()
def	initROOT (library)

Variables
	errorMustAddChecksum
	errorMustUpdateClassVersion
	errorRootDoesNotMatchClassDef
	noError

Function Documentation

checkClass()

def ClassesDefXmlUtils.checkClass	(		name,
			version,
			versionsToChecksums
	)

Definition at line 116 of file ClassesDefXmlUtils.py.

def checkClass(name,version,versionsToChecksums):
    import ROOT
    c = ROOT.TClass.GetClass(name)
    if not c:
        raise RuntimeError("failed to load dictionary for class '"+name+"'")
    temp = "checkTheClass.f(" + '"' + name + '"' + ");"
    retval = ROOT.gROOT.ProcessLine(temp)
    if retval == 0 :
        raise RuntimeError("TClass::GetCheckSum: Failed to load dictionary for base class. See previous Error message")
    classChecksum = c.GetCheckSum()
    classVersion = c.GetClassVersion()

    #does this version match what is in the file?
    if version != classVersion:
        return (errorRootDoesNotMatchClassDef,classVersion,classChecksum)

    #is the version already in our list?
    found = False
    
    for v,cs in versionsToChecksums:
        if v == version:
            found = True
            if classChecksum != cs:
                return (errorMustUpdateClassVersion,classVersion,classChecksum)
            break
    if not found and classVersion != 0:
        return (errorMustAddChecksum,classVersion,classChecksum)
    return (noError,classVersion,classChecksum)

initCheckClass()

def ClassesDefXmlUtils.initCheckClass

(

)

Must be called before checkClass()

Definition at line 103 of file ClassesDefXmlUtils.py.

def initCheckClass():
    """Must be called before checkClass()"""
    import ROOT
    ROOT.gROOT.ProcessLine("class checkclass {public: int f(char const* name) {TClass* cl = TClass::GetClass(name); bool b = false; cl->GetCheckSum(b); return (int)b;} };")
    ROOT.gROOT.ProcessLine("checkclass checkTheClass;")

    
#The following are error codes returned from checkClass

initROOT()

def ClassesDefXmlUtils.initROOT

(

library

)

Definition at line 91 of file ClassesDefXmlUtils.py.

def initROOT(library):
    #Need to not have ROOT load .rootlogon.(C|py) since it can cause interference.
    import ROOT
    ROOT.PyConfig.DisableRootLogon = True

    #Keep ROOT from trying to use X11
    ROOT.gROOT.SetBatch(True)
    ROOT.gROOT.ProcessLine(".autodict")
    if library is not None:
        if ROOT.gSystem.Load(library) < 0 :
            raise RuntimeError("failed to load library '"+library+"'")

Variable Documentation

errorMustAddChecksum

ClassesDefXmlUtils.errorMustAddChecksum

Definition at line 114 of file ClassesDefXmlUtils.py.

errorMustUpdateClassVersion

ClassesDefXmlUtils.errorMustUpdateClassVersion

Definition at line 113 of file ClassesDefXmlUtils.py.

errorRootDoesNotMatchClassDef

ClassesDefXmlUtils.errorRootDoesNotMatchClassDef

Definition at line 112 of file ClassesDefXmlUtils.py.

noError

ClassesDefXmlUtils.noError

Definition at line 111 of file ClassesDefXmlUtils.py.

Referenced by ZeeCalibration.endOfJob(), L1TRate.getXSexFitsOMDS(), L1TRate_Offline.getXSexFitsPython(), and L1TRate.getXSexFitsPython().

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