GaudiPython.Persistency.RootPersistency Class Reference

Inheritance diagram for GaudiPython.Persistency.RootPersistency:

Collaboration diagram for GaudiPython.Persistency.RootPersistency:

Public Member Functions
	__init__ (self)
	configure (self, appMgr)
	formatInput (self, filenames, **kwargs)
	formatOutput (self, filename, **kwargs)
Public Member Functions inherited from GaudiPython.Persistency.PersistencyHelper
	__init__ (self, types)
	handle (self, typ)

Public Attributes
bool	configured = False
Public Attributes inherited from GaudiPython.Persistency.PersistencyHelper
	types = set(types)

Detailed Description

Implementation of PersistencyHelper based on Gaudi::RootCnvSvc.

Definition at line 118 of file Persistency.py.

Constructor & Destructor Documentation

__init__()

GaudiPython.Persistency.RootPersistency.__init__

(

self

)

Constructor.

Declare the type of supported persistencies to the base class.

Definition at line 123 of file Persistency.py.

    def __init__(self):
        """
        Constructor.
 
        Declare the type of supported persistencies to the base class.
        """
        super(RootPersistency, self).__init__(
            ["ROOT", "POOL_ROOT", "RootCnvSvc", "Gaudi::RootCnvSvc"]
        )
        self.configured = False
 

Member Function Documentation

configure()

GaudiPython.Persistency.RootPersistency.configure	(		self,
			appMgr )

Basic configuration.

Definition at line 134 of file Persistency.py.

    def configure(self, appMgr):
        """
        Basic configuration.
        """
        if not self.configured:
            # instantiate the required services
            appMgr.service("Gaudi::RootCnvSvc/RootCnvSvc")
            eps = appMgr.service("EventPersistencySvc")
            eps.CnvServices += ["RootCnvSvc"]
            self.configured = True
 

formatInput()

GaudiPython.Persistency.RootPersistency.formatInput	(		self,
			filenames,
		**	kwargs )

Translate a list of file names in a list of input descriptions.

The optional parameters 'collection', 'sel' and 'fun' should be used to
configure Event Tag Collection inputs.

@param filenames: the list of files

Definition at line 145 of file Persistency.py.

    def formatInput(self, filenames, **kwargs):
        """
        Translate a list of file names in a list of input descriptions.
 
        The optional parameters 'collection', 'sel' and 'fun' should be used to
        configure Event Tag Collection inputs.
 
        @param filenames: the list of files
        """
        if not self.configured:
            raise PersistencyError("Persistency not configured")
        if isinstance(filenames, str):
            filenames = [filenames]
        fileargs = {}
        # check if we are accessing a collection
        fileargs = dict(
            [(k, kwargs[k]) for k in ["collection", "sel", "fun"] if k in kwargs]
        )
        if fileargs:
            # is a collection
            svc = "Gaudi::RootCnvSvc"
        else:
            svc = "Gaudi::RootEvtSelector"
        return [str(FileDescription(f, "READ", svc, **fileargs)) for f in filenames]
 

formatOutput()

GaudiPython.Persistency.RootPersistency.formatOutput	(		self,
			filename,
		**	kwargs )

Translate a filename in an output description.

@param filenames: the list of files
@param lun: Logical Unit for Event Tag Collection outputs (optional)

Definition at line 170 of file Persistency.py.

    def formatOutput(self, filename, **kwargs):
        """
        Translate a filename in an output description.
 
        @param filenames: the list of files
        @param lun: Logical Unit for Event Tag Collection outputs (optional)
        """
        if not self.configured:
            raise PersistencyError("Persistency not configured")
        retval = str(FileDescription(filename, "RECREATE", "Gaudi::RootCnvSvc"))
        if "lun" in kwargs:
            retval = "%s %s" % (kwargs["lun"], retval)
        return retval
 
 
# Adding the know instances to the list of helpers

Member Data Documentation

configured

bool GaudiPython.Persistency.RootPersistency.configured = False

Definition at line 132 of file Persistency.py.

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

• GaudiPython/python/GaudiPython/Persistency.py