| # Gaudi Framework, version v21r7p1 |

Home |  | Generated: 15 Feb 2010

# Configurable Namespace Reference

## Classes
class | Error
class | PropertyReference
| Allow references to options as in old style. More...
class | Configurable
class | DummyDescriptor
| if isinstance(v,Configurable) and not v.isPublic(): rep += v.__str__( indent + 1 ) + os.linesep elif isinstance(v,GaudiHandleArray): for vi in v: if isinstance(vi,Configurable) and not vi.isPublic(): rep += vi.__str__( indent + 1 ) + os.linesep More...
class | ConfigurableGeneric
class | ConfigurableAlgorithm
class | ConfigurableService
class | ConfigurableAlgTool
class | ConfigurableAuditor
class | ConfigurableUser
## Functions
def | expandvars
def | appendPostConfigAction
def | removePostConfigAction
def | applyConfigurableUsers
def | getNeededConfigurables
def | purge
## Variables
list | __all__
tuple | log = logging.getLogger( 'Configurable' )
list | postConfigActions = []
| _appliedConfigurableUsers_ = False

## Function Documentation

def Configurable::appendPostConfigAction | ( |  | function | ) |

    Add a new callable ('function') to the list of post-configuration actions.
    If the callable is already in the list, it is moved to the end of the list.
    The list is directly accessible as 'GaudiKernel.Configurable.postConfigActions'.

Definition at line 1260 of file Configurable.py.

    01260                                     :
    01261     """
    01262     Add a new callable ('function') to the list of post-configuration actions.
    01263     If the callable is already in the list, it is moved to the end of the list.
    01264     The list is directly accessible as 'GaudiKernel.Configurable.postConfigActions'.
    01265     """
    01266     try:
    01267         postConfigActions.remove(function)
    01268     except:
    01269         pass
    01270     postConfigActions.append(function)
    def removePostConfigAction(function):

def Configurable::applyConfigurableUsers | ( |  | ) |

    Call the apply method of all the ConfigurableUser instances respecting the
    dependencies. First the C.U.s that are not used by anybody, then the used
    ones, when they are not used anymore.

Definition at line 1279 of file Configurable.py.

    01279                             :
    01280     """
    01281     Call the apply method of all the ConfigurableUser instances respecting the
    01282     dependencies. First the C.U.s that are not used by anybody, then the used
    01283     ones, when they are not used anymore.
    01284     """
    01285     # Avoid double calls
    01286     global _appliedConfigurableUsers_, postConfigActions
    01287     if _appliedConfigurableUsers_:
    01288         return
    01289     _appliedConfigurableUsers_ = True
    01290
    01291     confUsers = [ c
    01292                   for c in Configurable.allConfigurables.values()
    01293                   if hasattr(c,"__apply_configuration__") ]
    01294     applied = True # needed to detect dependency loops
    01295     while applied and confUsers:
    01296         newConfUsers = [] # list of conf users that cannot be applied yet
    01297         applied = False
    01298         for c in confUsers:
    01299             if hasattr(c,"__users__") and c.__users__:
    01300                 newConfUsers.append(c) # cannot use this one yet
    01301             else: # it does not have users or the list is empty
    01302                 applied = True
    01303                 # the ConfigurableUser is enabled if it doesn't have an _enabled
    01304                 # property or its value is True
    01305                 enabled = (not hasattr(c, "_enabled")) or c._enabled
    01306                 if enabled:
    01307                     log.info("applying configuration of %s", c.name())
    01308                     c.__apply_configuration__()
    01309                     log.info(c)
    01310                 else:
    01311                     log.info("skipping configuration of %s", c.name())
    01312                 if hasattr(c, "__detach_used__"):
    01313                     # tells the used configurables that they are not needed anymore
    01314                     c.__detach_used__()
    01315         confUsers = newConfUsers # list of C.U.s still to go
    01316     if confUsers:
    01317         # this means that some C.U.s could not be applied because of a dependency loop
    01318         raise Error("Detected loop in the ConfigurableUser "
    01319                     " dependencies: %r" % [ c.name()
    01320                                             for c in confUsers ])
    01321     # Call post-config actions
    01322     for action in postConfigActions:
    01323         action()
    01324
    def getNeededConfigurables():

def Configurable::expandvars | ( |  | data | ) |

    Expand environment variables "data".
    Data can be string, list, tuple and dictionary. For collection, all the
    contained strings will be manipulated (recursively).

Definition at line 27 of file Configurable.py.

    00027                     :
    00028     """
    00029     Expand environment variables "data".
    00030     Data can be string, list, tuple and dictionary. For collection, all the
    00031     contained strings will be manipulated (recursively).
    00032     """
    00033     import os.path
    00034     typ = type(data)
    00035     if typ is str:
    00036         return os.path.expandvars(data)
    00037     elif typ in [list, tuple]:
    00038         collect = []
    00039         for i in data:
    00040             collect.append(expandvars(i))
    00041         return typ(collect)
    00042     elif typ is dict:
    00043         collect = {}
    00044         for k in data:
    00045             collect[expandvars(k)] = expandvars(data[k])
    00046         return collect
    00047     return data
    00048
    class Error(RuntimeError):

def Configurable::getNeededConfigurables | ( |  | ) |

    Function to select all and only the configurables that have to be used in
    GaudiPython.AppMgr constructor.
    This is needed because in Athena the implementation have to be different (the
    configuration is used in a different moment).

Definition at line 1325 of file Configurable.py.

    01325                             :
    01326     """
    01327     Function to select all and only the configurables that have to be used in
    01328     GaudiPython.AppMgr constructor.
    01329     This is needed because in Athena the implementation have to be different (the
    01330     configuration is used in a different moment).
    01331     """
    01332     return [ k
    01333              for k, v in Configurable.allConfigurables.items()
    01334              if v.getGaudiType() != "User" ] # Exclude ConfigurableUser instances
    01335
    def purge():

def Configurable::purge | ( |  | ) |

    Clean up all configurations and configurables.

Definition at line 1336 of file Configurable.py.

    01336            :
    01337     """
    01338     Clean up all configurations and configurables.
    01339     """
    01340     for c in Configurable.allConfigurables.values():
    01341         c.__class__.configurables.clear()
    01342     Configurable.allConfigurables.clear()
    01343     # FIXME: (MCl) this is needed because instances of ConfigurableGeneric are not
    01344     #        migrated to the correct class when this is known.
    01345     ConfigurableGeneric.configurables.clear()
    01346     from ProcessJobOptions import _included_files
    01347     import os.path, sys
    01348     for file in _included_files:
    01349         dirname, basname = os.path.split(file)
    01350         basname, ext = os.path.splitext(basname)
    01351         if basname in sys.modules:
    01352             del sys.modules[basname]
    01353     _included_files.clear()
        _included_files.clear()

def Configurable::removePostConfigAction | ( |  | function | ) |

    Remove a collable from the list of post-config actions.
    The list is directly accessible as 'GaudiKernel.Configurable.postConfigActions'.

Definition at line 1271 of file Configurable.py.

    01271                                     :
    01272     """
    01273     Remove a collable from the list of post-config actions.
    01274     The list is directly accessible as 'GaudiKernel.Configurable.postConfigActions'.
    01275     """
    01276     postConfigActions.remove(function)
    01277
    _appliedConfigurableUsers_ = False

## Variable Documentation

list Configurable::__all__

Initial value:

    [ 'Configurable',
                'ConfigurableAlgorithm',
                'ConfigurableAlgTool',
                'ConfigurableAuditor',
                'ConfigurableService',
                'ConfigurableUser',
                'VERBOSE','DEBUG','INFO', 'WARNING', 'ERROR', 'FATAL',
                'appendPostConfigAction', 'removePostConfigAction' ]

Definition at line 14 of file Configurable.py.

Configurable::_appliedConfigurableUsers_ = False

Definition at line 1278 of file Configurable.py.

tuple Configurable::log = logging.getLogger( 'Configurable' )

Definition at line 25 of file Configurable.py.

list Configurable::postConfigActions = []

Definition at line 1259 of file Configurable.py.