| # Gaudi Framework, version v22r0 |

Home |  | Generated: 9 Feb 2011

# PropertyProxy::GaudiHandlePropertyProxyBase Class Reference

Inheritance diagram for PropertyProxy::GaudiHandlePropertyProxyBase:
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Collaboration diagram for PropertyProxy::GaudiHandlePropertyProxyBase:
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List of all members.

## Public Member Functions
def | __init__
def | __get__
def | __set__
def | isHandle
def | isConfig
def | getDefaultConfigurable
def | convertDefaultToBeSet
def | convertValueToBeSet
## Private Attributes
| _handleType
| _confTypeName

## Detailed Description

    A class with some utilities for GaudiHandles and GaudiHandleArrays

Definition at line 151 of file PropertyProxy.py.

## Member Function Documentation

def PropertyProxy::GaudiHandlePropertyProxyBase::__get__ | ( |  | self,
|  |  | obj,
|  |  | type = `None` |
| ) |  |  |

Reimplemented from PropertyProxy::PropertyProxy.

Definition at line 171 of file PropertyProxy.py.

    00172                                          :
    00173         try:
    00174             return self.descr.__get__( obj, type )
    00175         except AttributeError:
    00176             # Get default
    00177             try:
    00178                 default = obj.__class__.getDefaultProperty( self.descr.__name__ )
    00179                 default = self.convertDefaultToBeSet( obj, default )
    00180                 if default:
    00181                     self.__set__( obj, default )
    00182             except AttributeError,e:
    00183                 # change type of exception to avoid false error message
    00184                 raise RuntimeError(*e.args)
    00185
    00186         return self.descr.__get__( obj, type )
    00187

def PropertyProxy::GaudiHandlePropertyProxyBase::__init__ | ( |  | self,
|  |  | descr,
|  |  | docString,
|  |  | default,
|  |  | handleType,
|  |  | allowedType |
| ) |  |  |

    <descr>: the real property in the object instance (from __slots__)
    <docString>: the documentation string of this property
    <default>: default value from C++ (via python generated by genconf)
    <handleType>: real python handle type (e.g. PublicToolHandle, PrivateToolHandle, ...)
    <allowedType>: allowed instance type for default

Definition at line 154 of file PropertyProxy.py.

    00155                                                                            :
    00156         """<descr>: the real property in the object instance (from __slots__)
    00157         <docString>: the documentation string of this property
    00158         <default>: default value from C++ (via python generated by genconf)
    00159         <handleType>: real python handle type (e.g. PublicToolHandle, PrivateToolHandle, ...)
    00160         <allowedType>: allowed instance type for default
    00161         """
    00162         # check that default is of allowed type for this proxy
    00163         if not isinstance(default,allowedType):
    00164             raise TypeError( "%s: %s default: %r is not a %s" % \
    00165                              ( descr.__name__, self.__class__.__name__, default, allowedType.__name__ ) )
    00166         PropertyProxy.__init__( self, descr, docString, default )
    00167         self._handleType = handleType
    00168         self._confTypeName = 'Configurable' + handleType.componentType
    00169 #      print "%s: %r (%s)" % (self.__class__.__name__,self._handleType,self._confTypeName)
    00170

def PropertyProxy::GaudiHandlePropertyProxyBase::__set__ | ( |  | self,
|  |  | obj,
|  |  | value |
| ) |  |  |

Reimplemented from PropertyProxy::PropertyProxy.

Definition at line 188 of file PropertyProxy.py.

    00189                                    :
    00190      # allow a property to be set if we're in non-default mode, or if it
    00191      # simply hasn't been set before
    00192         if not obj._isInSetDefaults() or not obj in self.history:
    00193             value = self.convertValueToBeSet( obj, value )
    00194             # assign the value
    00195             self.descr.__set__( obj, value )
    00196             log.debug( "Setting %s = %r", self.fullPropertyName( obj ), value )
    00197             self.history.setdefault( obj, [] ).append( value )
    00198
    00199

def PropertyProxy::GaudiHandlePropertyProxyBase::convertDefaultToBeSet | ( |  | self,
|  |  | obj,
|  |  | default |
| ) |  |  |

Reimplemented in PropertyProxy::GaudiHandleArrayPropertyProxy.

Definition at line 231 of file PropertyProxy.py.

    00232                                                    :
    00233         # turn string into handle
    00234         isString = type(default) == str
    00235         if not isString and self.isConfig(default):
    00236 #         print self.fullPropertyName(obj) + ": Setting default configurable: %r" % default
    00237             return default
    00238         elif isString or self.isHandle(default):
    00239             if isString:
    00240                 # convert string into handle
    00241                 typeAndName = default
    00242                 default = self._handleType( typeAndName )
    00243             else:
    00244                 typeAndName = default.typeAndName
    00245             if not self._handleType.isPublic:
    00246                 if not typeAndName:
    00247                     return None
    00248                 # Find corresponding default configurable of private handles
    00249                 try:
    00250                     conf = self.getDefaultConfigurable(typeAndName, self.fullPropertyName(obj))
    00251 #               print self.fullPropertyName(obj) + ": Setting default private configurable (from default handle): %r" % conf
    00252                 except AttributeError,e:
    00253                     # change type of exception to avoid false error message
    00254                     raise RuntimeError(*e.args)
    00255                 if conf is None:
    00256                     raise RuntimeError( "%s: Default configurable for class %s not found in ConfigurableDb.CfgDb" % \
    00257                                         (self.fullPropertyName(obj),default.getType() ) )
    00258                 return conf
    00259         else: # not a config, not a handle, not a string
    00260             raise TypeError( "%s: default value %r is not of type %s or %s" % \
    00261                              (self.fullPropertyName(obj),default,self._confTypeName,self._handleType.__name__) )
    00262
    00263         return default

def PropertyProxy::GaudiHandlePropertyProxyBase::convertValueToBeSet | ( |  | self,
|  |  | obj,
|  |  | value |
| ) |  |  |

Reimplemented in PropertyProxy::GaudiHandleArrayPropertyProxy.

Definition at line 264 of file PropertyProxy.py.

    00265                                                :
    00266         if value is None: value = ''
    00267         isString = type(value) == str
    00268         if isString:
    00269         # create an new handle
    00270             return self._handleType(value)
    00271         elif self.isHandle(value):
    00272         # make a copy of the handle
    00273             return self._handleType(value.toStringProperty())
    00274         elif self.isConfig(value):
    00275             if self._handleType.isPublic:
    00276              # A public tool must be registered to ToolSvc before assigning it
    00277                 if derives_from(value,'ConfigurableAlgTool'):
    00278                     if not value.isInToolSvc():
    00279                         suggestion = 'You may need to add jobOptions lines something like:' + os.linesep + \
    00280                                      'from AthenaCommon.AppMgr import ToolSvc' + os.linesep + \
    00281                                      'ToolSvc += '
    00282                         if value.getName() == value.getType(): # using default name
    00283                             suggestion += '%s()' % value.__class__.__name__
    00284                         else: # using user-defined name
    00285                             suggestion += '%s(%r)' % (value.__class__.__name__,value.getName())
    00286                         raise RuntimeError( self.fullPropertyName(obj) +
    00287                                             ': Public tool %s is not yet in ToolSvc. %s' %
    00288                                             (value.getJobOptName(),suggestion) )
    00289              # make it read-only
    00290                 return self._handleType(value.toStringProperty())
    00291             elif value.hasParent( obj.getJobOptName() ):
    00292              # is already a child, keep as-is
    00293                 return value
    00294             else:
    00295              # make a copy of the configurable
    00296                 value = obj.copyChildAndSetParent( value, obj.getJobOptName() )
    00297                 # ensure that the new object is in allConfigurables
    00298                 obj.allConfigurables[value.name()] = value
    00299                 return value
    00300         else:
    00301             raise TypeError( "Property %s value %r is not a %s nor a %s nor a string" % \
    00302                              (self.fullPropertyName(obj),value,self._confTypeName,self._handleType.__name__) )
    00303
    00304         return value
    00305

def PropertyProxy::GaudiHandlePropertyProxyBase::getDefaultConfigurable | ( |  | self,
|  |  | typeAndName,
|  |  | requester |
| ) |  |  |

    Return the configurable instance corresponding to the toolhandle if possible.
    Otherwise return None

Definition at line 210 of file PropertyProxy.py.

    00211                                                           :
    00212         """Return the configurable instance corresponding to the toolhandle if possible.
    00213         Otherwise return None"""
    00214         global log
    00215         # find the module
    00216         typeAndNameTuple = typeAndName.split('/')
    00217         confType = typeAndNameTuple[0]
    00218         confClass=ConfigurableDb.getConfigurable(confType)
    00219         # check the type of the configurable
    00220         if not derives_from(confClass,self._confTypeName):
    00221             log.error( "%s: Configurable %s is not a %s",
    00222                        requester, confType, self._confTypeName )
    00223             return None
    00224         try:
    00225             confName = typeAndNameTuple[1]
    00226         except IndexError:
    00227             return confClass() # use default name
    00228         else:
    00229             return confClass(confName)
    00230

def PropertyProxy::GaudiHandlePropertyProxyBase::isConfig | ( |  | self,
|  |  | value |
| ) |  |  |

    Check if <value> is a configurable of the correct type

Definition at line 205 of file PropertyProxy.py.

    00206                             :
    00207         """Check if <value> is a configurable of the correct type"""
    00208         return derives_from(value,self._confTypeName)
    00209

def PropertyProxy::GaudiHandlePropertyProxyBase::isHandle | ( |  | self,
|  |  | value |
| ) |  |  |

    Check if <value> is a handle of the correct type

Definition at line 200 of file PropertyProxy.py.

    00201                             :
    00202         """Check if <value> is a handle of the correct type"""
    00203         return isinstance(value,self._handleType)
    00204

## Member Data Documentation

PropertyProxy::GaudiHandlePropertyProxyBase::_confTypeName`[private]`

Definition at line 167 of file PropertyProxy.py.

PropertyProxy::GaudiHandlePropertyProxyBase::_handleType`[private]`

Definition at line 166 of file PropertyProxy.py.

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

- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r0/GaudiKernel/python/GaudiKernel/PropertyProxy.py

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