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Public Member Functions | |
| def | __init__ |
| def | countSeeds |
| def | getNamedSeed |
| def | insertSeeds |
| def | populate |
| def | resetSeeds |
| def | setNamedSeed |
Private Member Functions | |
| def | __containsSeed |
| def | __psetsWithSeeds |
Private Attributes | |
| _lockedSeeds | |
| _randService | |
_RandomNumberServiceHelper_ Helper class to hold and handle the Random number generator service. Provide both user level and WM APIs. Revision: "$Id: RandomServiceHelper.py,v 1.4 2008/06/10 19:49:49 ewv Exp $" Version "$Revision: 1.4 $" Author: Dave Evans Modified: Eric Vaandering
Definition at line 8 of file RandomServiceHelper.py.
| def RandomServiceHelper::RandomNumberServiceHelper::__init__ | ( | self, | |
| randService | |||
| ) |
Definition at line 22 of file RandomServiceHelper.py.
| def RandomServiceHelper::RandomNumberServiceHelper::__containsSeed | ( | self, | |
| psetInstance | |||
| ) | [private] |
_keeper_ True/False if the psetInstance has seeds in it
Definition at line 27 of file RandomServiceHelper.py.
00028 : 00029 """ 00030 _keeper_ 00031 00032 True/False if the psetInstance has seeds in it 00033 00034 """ 00035 if psetInstance == None: 00036 return False 00037 if not isinstance(psetInstance,CfgTypes.PSet): 00038 return False 00039 seedList = getattr(psetInstance, "initialSeedSet", None) 00040 if seedList != None: 00041 return True 00042 seedVal = getattr(psetInstance, "initialSeed", None) 00043 if seedVal != None: 00044 return True 00045 return False 00046
| def RandomServiceHelper::RandomNumberServiceHelper::__psetsWithSeeds | ( | self | ) | [private] |
_psetsWithSeeds_ *private method* return the list of PSet instances with seeds in them
Definition at line 47 of file RandomServiceHelper.py.
00048 : 00049 """ 00050 _psetsWithSeeds_ 00051 00052 *private method* 00053 00054 return the list of PSet instances with seeds in them 00055 00056 """ 00057 svcAttrs = [getattr(self._randService, item, None) 00058 for item in self._randService.parameters_() 00059 if item not in self._lockedSeeds] 00060 00061 #print svcAttrs 00062 00063 return filter(self.__containsSeed, svcAttrs) 00064
| def RandomServiceHelper::RandomNumberServiceHelper::countSeeds | ( | self | ) |
_countSeeds_ Count the number of seeds required by this service by summing up the initialSeed and initialSeedSet entries in all PSets in the service that contain those parameters.
Definition at line 65 of file RandomServiceHelper.py.
00066 : 00067 """ 00068 _countSeeds_ 00069 00070 Count the number of seeds required by this service by 00071 summing up the initialSeed and initialSeedSet entries 00072 in all PSets in the service that contain those parameters. 00073 00074 """ 00075 count = 0 00076 00077 for itemRef in self.__psetsWithSeeds(): 00078 # // 00079 # // PSet has list of seeds 00080 #// 00081 seedSet = getattr(itemRef, "initialSeedSet", None) 00082 if seedSet != None: 00083 count += len( seedSet.value()) 00084 continue 00085 # // 00086 # // PSet has single seed 00087 #// 00088 seedVal = getattr(itemRef, "initialSeed", None) 00089 if seedVal != None: 00090 count += 1 00091 00092 # // 00093 # // PSet has no recognisable seed, therfore do nothing 00094 #// with it 00095 return count 00096
| def RandomServiceHelper::RandomNumberServiceHelper::getNamedSeed | ( | self, | |
| psetName | |||
| ) |
_getNamedSeed_ This method returns the seeds in a PSet in this service. Returned - *psetName* : Name of the pset containing the seeds
Definition at line 139 of file RandomServiceHelper.py.
00140 : 00141 """ 00142 _getNamedSeed_ 00143 00144 This method returns the seeds in a PSet in this service. Returned 00145 00146 - *psetName* : Name of the pset containing the seeds 00147 00148 """ 00149 pset = getattr(self._randService, psetName, None) 00150 if pset == None: 00151 msg = "No PSet named %s belongs to this instance of the" % ( 00152 psetName,) 00153 msg += "Random Seed Service" 00154 raise RuntimeError, msg 00155 00156 seedVal = getattr(pset, "initialSeed", None) 00157 if seedVal != None: 00158 return [pset.initialSeed.value()] 00159 00160 seedSet = getattr(pset, "initialSeedSet", None) 00161 if seedSet != None: 00162 return pset.initialSeedSet 00163
| def RandomServiceHelper::RandomNumberServiceHelper::insertSeeds | ( | self, | |
| seeds | |||
| ) |
_insertSeeds_ Given some list of specific seeds, insert them into the service. Length of seed list is required to be same as the seed count for the service. Usage: WM Tools.
Definition at line 164 of file RandomServiceHelper.py.
00165 : 00166 """ 00167 _insertSeeds_ 00168 00169 Given some list of specific seeds, insert them into the 00170 service. 00171 00172 Length of seed list is required to be same as the seed count for 00173 the service. 00174 00175 Usage: WM Tools. 00176 00177 """ 00178 seeds = list(seeds) 00179 if len(seeds) < self.countSeeds(): 00180 msg = "Not enough seeds provided\n" 00181 msg += "Service requires %s seeds, only %s provided\n" 00182 msg += "to RandomeService.insertSeeds method\n" 00183 raise RuntimeError, msg 00184 00185 for item in self.__psetsWithSeeds(): 00186 seedSet = getattr(item, "initialSeedSet", None) 00187 if seedSet != None: 00188 numSeeds = len(seedSet.value()) 00189 useSeeds = seeds[:numSeeds] 00190 seeds = seeds[numSeeds:] 00191 item.initialSeedSet = CfgTypes.untracked( 00192 CfgTypes.vuint32(*useSeeds)) 00193 continue 00194 useSeed = seeds[0] 00195 seeds = seeds[1:] 00196 item.initialSeed = CfgTypes.untracked( 00197 CfgTypes.uint32(useSeed) 00198 ) 00199 continue 00200 return 00201
| def RandomServiceHelper::RandomNumberServiceHelper::populate | ( | self, | |
| excludePSets | |||
| ) |
_populate_
generate a bunch of seeds and stick them into this service
This is the lazy user method.
Optional args are names of PSets to *NOT* alter seeds.
Eg:
populate() will set all seeds
populate("pset1", "pset2") will set all seeds but not those in
psets named pset1 and pset2
Definition at line 202 of file RandomServiceHelper.py.
00203 : 00204 """ 00205 _populate_ 00206 00207 generate a bunch of seeds and stick them into this service 00208 This is the lazy user method. 00209 00210 Optional args are names of PSets to *NOT* alter seeds. 00211 00212 Eg: 00213 populate() will set all seeds 00214 populate("pset1", "pset2") will set all seeds but not those in 00215 psets named pset1 and pset2 00216 00217 """ 00218 00219 import random 00220 from random import SystemRandom 00221 _inst = SystemRandom() 00222 _MAXINT = 900000000 00223 00224 # // 00225 # // count seeds and create the required number of seeds 00226 #// 00227 newSeeds = [ _inst.randint(1, _MAXINT) 00228 for i in range(self.countSeeds())] 00229 00230 00231 self._lockedSeeds = list(excludePSets) 00232 self.insertSeeds(*newSeeds) 00233 self._lockedSeeds = [] 00234 return 00235
| def RandomServiceHelper::RandomNumberServiceHelper::resetSeeds | ( | self, | |
| value | |||
| ) |
_resetSeeds_ reset all seeds to given value
Definition at line 236 of file RandomServiceHelper.py.
| def RandomServiceHelper::RandomNumberServiceHelper::setNamedSeed | ( | self, | |
| psetName, | |||
| seeds | |||
| ) |
_setNamedSeed_ If a specific set of seeds is needed for a PSet in this service, they can be set by name using this method. - *psetName* : Name of the pset containing the seeds - *seeds* : list of seeds to be added, should be a single seed for initialSeed values.
Definition at line 97 of file RandomServiceHelper.py.
00098 : 00099 """ 00100 _setNamedSeed_ 00101 00102 If a specific set of seeds is needed for a PSet in this 00103 service, they can be set by name using this method. 00104 00105 - *psetName* : Name of the pset containing the seeds 00106 00107 - *seeds* : list of seeds to be added, should be a single seed 00108 for initialSeed values. 00109 00110 """ 00111 pset = getattr(self._randService, psetName, None) 00112 if pset == None: 00113 msg = "No PSet named %s belongs to this instance of the" % ( 00114 psetName,) 00115 msg += "Random Seed Service" 00116 raise RuntimeError, msg 00117 00118 seedVal = getattr(pset, "initialSeed", None) 00119 if seedVal != None: 00120 pset.initialSeed = CfgTypes.untracked( 00121 CfgTypes.uint32(seeds[0]) 00122 ) 00123 00124 return 00125 seedSet = getattr(pset, "initialSeedSet", None) 00126 if seedSet != None: 00127 # // 00128 # // Do we want to check the number of seeds?? 00129 #// 00130 #if len(seeds) != len( seedSet.value()): pass 00131 pset.initialSeedSet = CfgTypes.untracked( 00132 CfgTypes.vuint32(*seeds)) 00133 return 00134 # // 00135 # // No seeds for that PSet 00136 #// Error throw? 00137 return 00138
Definition at line 22 of file RandomServiceHelper.py.
Definition at line 22 of file RandomServiceHelper.py.
1.7.3