ROOTData Namespace Reference

Functions
def	literal2root
def	tfile_cd

Function Documentation

def ROOTData.literal2root	(		literal,
			rootType,
			tstreamerinfo = None
	)

Convert an hexadecimal string into a root-object. The correct TStreamerInfo
is passed in order to avoid inconsistencies.

Definition at line 24 of file ROOTData.py.

Referenced by dqm_interfaces.DQMcommunicator.get_root_objects(), dqm_interfaces.DQMcommunicator.get_root_objects_list(), dqm_interfaces.DQMcommunicator.get_root_objects_list_recursive(), dqm_interfaces.DQMcommunicator.get_root_objects_recursive(), and dqm_interfaces.DirWalkerDB.run().

def literal2root (literal,rootType,tstreamerinfo=None):
  """
  Convert an hexadecimal string into a root-object. The correct TStreamerInfo
  is passed in order to avoid inconsistencies.
  """
  bitsarray = array('B')
  bitsarray.fromstring(literal.decode('hex'))

  tbuffer = TBufferFile(TBufferFile.kRead)
  if tstreamerinfo:
    tbuffer.IncrementLevel(tstreamerinfo)
  tbuffer.SetBuffer(bitsarray,len(bitsarray),False)

  # replace a couple of shortcuts with the real root class name
  if rootType == 'TPROF':
      rootType = 'TProfile'
  if rootType == 'TPROF2D':
      rootType = 'TProfile2D'

  root_class=eval(rootType+'.Class()')

  return tbuffer.ReadObject(root_class)

def ROOTData.tfile_cd	(		dirname,
			tfile,
			debug = False
	)

Safely re-build and navigate the directory structure.

Definition at line 5 of file ROOTData.py.

def tfile_cd(dirname,tfile,debug=False):
  """
  Safely re-build and navigate the directory structure.
  """

  if not tfile.GetDirectory(dirname):
    gDirectory.cd("/")
    path=""
    for component in dirname.split('/'):
      path+="/%s" %component
      if not tfile.GetDirectory(path):
        gDirectory.mkdir(component)
      gDirectory.cd(component)

      if debug:
        print "Current dir"
        gDirectory.pwd()