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 471 of file dqm_interfaces.py.

Constructor & Destructor Documentation

def dqm_interfaces.DQMRootFile.__init__	(		self,
			rootfilename
	)

Definition at line 477 of file dqm_interfaces.py.

    def __init__(self,rootfilename):
        dqmdatadir="DQMData"
        self.rootfile=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

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

private

Definition at line 487 of file dqm_interfaces.py.

References edm.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

def dqm_interfaces.DQMRootFile.cd	(		self,
			directory_name
	)

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

Definition at line 507 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

def dqm_interfaces.DQMRootFile.getObj	(		self,
			objname
	)

Get a TObject from the rootfile.

Definition at line 532 of file dqm_interfaces.py.

References dqm_interfaces.DQMRootFile.__is_null().

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

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

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

Definition at line 493 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

dqm_interfaces.DQMRootFile.rootfile

Definition at line 479 of file dqm_interfaces.py.

dqm_interfaces.DQMRootFile.rootfileprevpwd

Definition at line 481 of file dqm_interfaces.py.

Referenced by dqm_interfaces.DQMRootFile.cd().

dqm_interfaces.DQMRootFile.rootfilepwd

Definition at line 480 of file dqm_interfaces.py.

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