dqm_interfaces.DQMRootFile Class Reference

Inheritance diagram for dqm_interfaces.DQMRootFile:

Public Member Functions
def	__init__ (self, rootfilename)
def	cd (self, directory_name)
def	getObj (self, objname)
def	ls (self, directory_name="")

Public Attributes
	rootfile
	rootfileprevpwd
	rootfilepwd

Private Member Functions
def	__is_null (self, directory, name)

Detailed Description

Class acting as interface between the user and the harvested DQMRootFile.  
It skips the directories created by the DQM infrastructure so to provide an
interface as similar as possible to a real direcory structure and to the 
directory structure provided by the db interface.

Definition at line 475 of file dqm_interfaces.py.

Constructor & Destructor Documentation

__init__()

def dqm_interfaces.DQMRootFile.__init__	(		self,
			rootfilename
	)

Definition at line 481 of file dqm_interfaces.py.

    def __init__(self,rootfilename):
        dqmdatadir="DQMData"
        self.rootfile=ROOT.TFile(rootfilename)
        self.rootfilepwd=self.rootfile.GetDirectory(dqmdatadir)
        self.rootfileprevpwd=self.rootfile.GetDirectory(dqmdatadir)
        if self.rootfilepwd == None:
            print("Directory %s does not exist: skipping. Is this a custom rootfile?" %dqmdatadir)
            self.rootfilepwd=self.rootfile
            self.rootfileprevpwd=self.rootfile

Member Function Documentation

__is_null()

def dqm_interfaces.DQMRootFile.__is_null (   self,   directory,   name  )

private

Definition at line 491 of file dqm_interfaces.py.

References print().

Referenced by dqm_interfaces.DQMRootFile.cd(), dqm_interfaces.DQMRootFile.getObj(), and dqm_interfaces.DQMRootFile.ls().

    def __is_null(self,directory,name):
        is_null = not directory
        if is_null:
            print("Directory %s does not exist!" %name, file=stderr)
        return is_null

cd()

def dqm_interfaces.DQMRootFile.cd	(		self,
			directory_name
	)

Change the current TDirectoryFile. The familiar "-" and ".." directories 
can be accessed as well.

Definition at line 511 of file dqm_interfaces.py.

References dqm_interfaces.DQMRootFile.__is_null(), dqm_interfaces.DQMRootFile.rootfileprevpwd, and dqm_interfaces.DQMRootFile.rootfilepwd.

Referenced by dqm_interfaces.DirWalkerFile.walk().

    def cd(self,directory_name):
        """Change the current TDirectoryFile. The familiar "-" and ".." directories 
        can be accessed as well.
        """
        if directory_name=="-":
            tmp=self.rootfilepwd
            self.rootfilepwd=self.rootfileprevpwd
            self.rootfileprevpwd=tmp
        if directory_name=="..":
            #print "Setting prevpwd"
            self.rootfileprevpwd=self.rootfilepwd
            #print "The mom"
            mom=self.rootfilepwd.GetMotherDir()
            #print "In directory +%s+" %self.rootfilepwd
            #print "Deleting the TFileDir"
            if "Run " not in self.rootfilepwd.GetName():
                self.rootfilepwd.Delete()
            #print "Setting pwd to mom"
            self.rootfilepwd=mom
        else:
            new_directory=self.rootfilepwd.GetDirectory(directory_name)
            if not self.__is_null(new_directory,directory_name):
                self.rootfileprevpwd=self.rootfilepwd
                self.rootfilepwd=new_directory

getObj()

def dqm_interfaces.DQMRootFile.getObj	(		self,
			objname
	)

Get a TObject from the rootfile.

Definition at line 536 of file dqm_interfaces.py.

References dqm_interfaces.DQMRootFile.__is_null(), Get(), and dqm_interfaces.DQMRootFile.rootfilepwd.

    def getObj(self,objname):
        """Get a TObject from the rootfile.
        """
        obj=self.rootfilepwd.Get(objname)
        if not self.__is_null(obj,objname):
            return obj

#-------------------------------------------------------------------------------

ls()

def dqm_interfaces.DQMRootFile.ls	(		self,
			directory_name = ""
	)

Definition at line 497 of file dqm_interfaces.py.

References dqm_interfaces.DQMRootFile.__is_null(), and dqm_interfaces.DQMRootFile.rootfilepwd.

Referenced by dqm_interfaces.DirWalkerFile.walk().

    def ls(self,directory_name=""):
        contents={}
        directory=None
        if len(directory_name)==0:
            directory=self.rootfilepwd      

        directory=self.rootfilepwd.GetDirectory(directory_name)    
        if self.__is_null(directory,directory_name):
            return contents

        for key in directory.GetListOfKeys():
            contents[key.GetName()]=key.GetClassName()
        return contents

Member Data Documentation

rootfile

dqm_interfaces.DQMRootFile.rootfile

Definition at line 483 of file dqm_interfaces.py.

rootfileprevpwd

dqm_interfaces.DQMRootFile.rootfileprevpwd

Definition at line 485 of file dqm_interfaces.py.

Referenced by dqm_interfaces.DQMRootFile.cd().

rootfilepwd

dqm_interfaces.DQMRootFile.rootfilepwd

Definition at line 484 of file dqm_interfaces.py.

Referenced by dqm_interfaces.DQMRootFile.cd(), dqm_interfaces.DQMRootFile.getObj(), and dqm_interfaces.DQMRootFile.ls().