python.DataLoader.DataHdlr_v000200 Class Reference

Inheritance diagram for python.DataLoader.DataHdlr_v000200:

Collaboration diagram for python.DataLoader.DataHdlr_v000200:

Public Member Functions
def	__init__ (self, fileName, scratchDir)
def	cnv (self)

Private Attributes
	_fileName
	_tmpdir

Detailed Description

Data handler for mixed ROOT/TTree-python format. v00.02.00

Definition at line 77 of file DataLoader.py.

Constructor & Destructor Documentation

__init__()

def python.DataLoader.DataHdlr_v000200.__init__	(		self,
			fileName,
			scratchDir
	)

Definition at line 80 of file DataLoader.py.

    def __init__(self, fileName, scratchDir):
        object.__init__(self)
        self._fileName    = fileName
        self._tmpdir      = scratchDir
 

Member Function Documentation

cnv()

def python.DataLoader.DataHdlr_v000200.cnv

(

self

)

Definition at line 85 of file DataLoader.py.

    def cnv(self):
        data = {}
        import os,glob
        origdir = os.getcwd()
        tmpdir  = self._tmpdir
        try:
            os.chdir(tmpdir)
            import tarfile
            tar = tarfile.open(os.path.abspath(self._fileName), 'r')
            tar.extractall(path=tmpdir)
            tar.close()
 
            fname = glob.glob("*.dat")[0]
            if open(fname, 'r').read(1024).startswith('SQLite format'):
                import PyUtils.dbsqlite as dbs
                db = dbs.open(fname, 'r')
            else:
                db = shelve.open(fname)
            data['meta'] = {}
            for k in db.iterkeys():
                data['meta'][k] = db[k]
            db.close()
 
            from PyRootLib import importRoot
            ROOT = importRoot()
            root = ROOT.fopen(glob.glob("*.root")[0], "read")
            for k in ('ini','evt','fin'):
                data[k] = root.Get("perfmon/%s"%k)
            data['meta']['rootFile'] = root
        finally:
            os.chdir(origdir)
 
        return data
 

Member Data Documentation

_fileName

python.DataLoader.DataHdlr_v000200._fileName

private

Definition at line 82 of file DataLoader.py.

_tmpdir

python.DataLoader.DataHdlr_v000200._tmpdir

private

Definition at line 83 of file DataLoader.py.

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

• DataLoader.py