src/Container/SALOME_ContainerPy.py

   1 #! /usr/bin/env python3
   2 #  -*- coding: iso-8859-1 -*-
   3 # Copyright (C) 2007-2023  CEA/DEN, EDF R&D, OPEN CASCADE
   4 #
   5 # Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   6 # CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   7 #
   8 # This library is free software; you can redistribute it and/or
   9 # modify it under the terms of the GNU Lesser General Public
  10 # License as published by the Free Software Foundation; either
  11 # version 2.1 of the License, or (at your option) any later version.
  12 #
  13 # This library is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 # Lesser General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU Lesser General Public
  19 # License along with this library; if not, write to the Free Software
  20 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21 #
  22 # See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  23 #
  24
  25 #  SALOME Container : implementation of container and engine for Kernel
  26 #  File   : SALOME_ContainerPy.py
  27 #  Author : Paul RASCLE, EDF
  28 #  Module : SALOME
  29 #  $Header$
  30 #
  31 import os
  32 import sys
  33 import importlib
  34
  35 from omniORB import CORBA, PortableServer
  36 import SALOMEDS
  37 import Engines, Engines__POA
  38 import salome_psutil
  39 from SALOME_NamingServicePy import *
  40 from SALOME_Embedded_NamingService import SALOME_Embedded_NamingService
  41 from SALOME_ComponentPy import *
  42
  43 from SALOME_utilities import *
  44 from Utils_Identity import getShortHostName
  45 from launchConfigureParser import verbose
  46
  47 #=============================================================================
  48
  49 #define an implementation of the container interface for the container implemented in Python
  50
  51 class SALOME_ContainerPy_Gen_i(Engines__POA.Container):
  52     """
  53     Implementation without naming_service server
  54     """
  55     _orb = None
  56     _poa = None
  57     _numInstance = 0
  58     _listInstances_map = {}
  59     _script = ""
  60
  61     #-------------------------------------------------------------------------
  62
  63     def __init__(self, orb, poa, containerName):
  64         MESSAGE( "SALOME_ContainerPy_i::__init__" )
  65         self._orb = orb
  66         self._poa = poa
  67         self._load_script = None
  68         myMachine=getShortHostName()
  69         Container_path = "/Containers/" + myMachine + "/" + containerName
  70         self._containerName = Container_path
  71         if verbose(): print("container name ",self._containerName)
  72
  73     #-------------------------------------------------------------------------
  74
  75     def instance(self, nameToRegister, componentName):
  76         MESSAGE(  "SALOME_ContainerPy_i::instance " + str(nameToRegister) + ' ' + str(componentName) )
  77         self._numInstance = self._numInstance +1
  78         instanceName = nameToRegister + "_inst_" + repr(self._numInstance)
  79
  80         component=importlib.import_module(componentName)
  81         factory=getattr(component,componentName)
  82         comp_i=factory(self._orb, self._poa, self._this(), self._containerName,
  83                        instanceName, nameToRegister)
  84
  85         MESSAGE( "SALOME_ContainerPy_i::instance : component created")
  86         comp_o = comp_i._this()
  87         return comp_o
  88
  89     #-------------------------------------------------------------------------
  90
  91     def load_impl(self, nameToRegister, componentName):
  92         MESSAGE(  "SALOME_ContainerPy_i::load_impl " + str(nameToRegister) + ' ' + str(componentName) )
  93         self._numInstance = self._numInstance +1
  94         instanceName = nameToRegister + "_inst_" + repr(self._numInstance)
  95         interfaceName = nameToRegister
  96         the_command = "import " + nameToRegister + "\n"
  97         the_command = the_command + "comp_i = " + nameToRegister + "." + nameToRegister
  98         the_command = the_command + "(self._orb, self._poa, self._this(), self._containerName, instanceName, interfaceName)\n"
  99         MESSAGE( "SALOME_ContainerPy_i::load_impl :" + str (the_command) )
 100         exec(the_command)
 101         comp_o = comp_i._this()
 102         return comp_o
 103
 104     #-------------------------------------------------------------------------
 105
 106     def import_component(self, componentName):
 107         MESSAGE( "SALOME_Container_i::import_component" )
 108         reason = ""
 109         try:
 110             if verbose(): print("try import %s" % componentName)
 111             # try import component
 112             module=importlib.import_module(componentName)
 113             if verbose(): print("import %s is done successfully" % componentName)
 114             # if import successfully, check that component is loadable
 115             if not hasattr(module, componentName):
 116                 reason = "module %s is not loadable" % componentName
 117                 print(reason)
 118                 pass
 119             pass
 120         except Exception:
 121             import traceback
 122             print("cannot import %s" % componentName)
 123             traceback.print_exc()
 124             reason = "cannot import %s" % componentName
 125         return reason
 126
 127     #-------------------------------------------------------------------------
 128
 129     def load_component_Library(self, componentName):
 130         MESSAGE(  "SALOME_ContainerPy_i::load_component_Library " + str(componentName) )
 131         ret = 0
 132         instanceName = componentName + "_inst_" + repr(self._numInstance)
 133         interfaceName = componentName
 134         reason = self.import_component(componentName)
 135         return reason == "", reason
 136
 137     #-------------------------------------------------------------------------
 138
 139     def create_component_instance_env(self, componentName, env):
 140       return self.create_component_instance(componentName), ""
 141
 142     def create_component_instance(self, componentName):
 143         MESSAGE( "SALOME_ContainerPy_i::create_component_instance ==> " + str(componentName) )
 144         self._numInstance = self._numInstance +1
 145         instanceName = componentName + "_inst_" + repr(self._numInstance)
 146         comp_iors=""
 147         try:
 148             component=importlib.import_module(componentName)
 149             factory=getattr(component,componentName)
 150             comp_i=factory(self._orb,
 151                            self._poa,
 152                            self._this(),
 153                            self._containerName,
 154                            instanceName,
 155                            componentName)
 156
 157             MESSAGE( "SALOME_Container_i::create_component_instance : OK")
 158             comp_o = comp_i._this()
 159             self._listInstances_map[instanceName] = comp_i
 160         except Exception:
 161             import traceback
 162             traceback.print_exc()
 163             MESSAGE( "SALOME_Container_i::create_component_instance : NOT OK")
 164         return comp_o
 165
 166     #-------------------------------------------------------------------------
 167
 168     def find_component_instance(self, registeredName):
 169         anEngine = None
 170         for instance in self._listInstances_map:
 171             if find(instance,registeredName) == 0:
 172                 anEngine = self._listInstances_map[instance]
 173                 return anEngine._this()
 174         return anEngine
 175
 176
 177     #-------------------------------------------------------------------------
 178
 179     def create_python_service_instance(self, CompName):
 180         return self.create_component_instance(CompName)
 181
 182     #-------------------------------------------------------------------------
 183
 184     def remove_impl(self, component):
 185         MESSAGE( "SALOME_ContainerPy_i::remove_impl" )
 186         instanceName = component._get_instanceName()
 187         MESSAGE( "unload component " + str(instanceName) )
 188         self._listInstances_map.remove(instanceName)
 189         component.destroy()
 190         self._naming_service.Destroy_Name(str(instanceName))
 191
 192     #-------------------------------------------------------------------------
 193
 194     def finalize_removal(self):
 195         MESSAGE( "SALOME_ContainerPy_i::finalize_removal" )
 196         return None
 197
 198     #-------------------------------------------------------------------------
 199
 200     def ping(self):
 201         MESSAGE( "SALOME_ContainerPy_i::ping() pid " + str(os.getpid()) )
 202         return None
 203
 204     #-------------------------------------------------------------------------
 205
 206     def getPID(self):
 207         return os.getpid()
 208
 209     #-------------------------------------------------------------------------
 210
 211     def getNumberOfCPUCores(self):
 212         return salome_psutil.getNumberOfCPUCores()
 213
 214     #-------------------------------------------------------------------------
 215
 216     def loadOfCPUCores(self):
 217         return salome_psutil.loadOfCPUCores(self._load_script)
 218
 219     #-------------------------------------------------------------------------
 220
 221     def setPyScriptForCPULoad(self, script):
 222         self._load_script = script
 223
 224     #-------------------------------------------------------------------------
 225
 226     def resetScriptForCPULoad(self):
 227         self._load_script = None
 228
 229     #-------------------------------------------------------------------------
 230
 231     def getTotalPhysicalMemory(self):
 232         return salome_psutil.getTotalPhysicalMemory()
 233
 234     #-------------------------------------------------------------------------
 235
 236     def getTotalPhysicalMemoryInUse(self):
 237         return salome_psutil.getTotalPhysicalMemoryInUse()
 238
 239     #-------------------------------------------------------------------------
 240
 241     def getTotalPhysicalMemoryInUseByMe(self):
 242         return salome_psutil.getTotalPhysicalMemoryInUseByMe()
 243
 244     #-------------------------------------------------------------------------
 245
 246     def _get_name(self):
 247         MESSAGE( "SALOME_ContainerPy_i::_get_name" )
 248         return self._containerName
 249
 250     #-------------------------------------------------------------------------
 251
 252     def getHostName(self):
 253         MESSAGE( "SALOME_ContainerPy_i::_get_MachineName" )
 254         self._machineName = "localhost"
 255         return self._machineName
 256
 257     #-------------------------------------------------------------------------
 258
 259     def _get_machineName(self):
 260         MESSAGE( "SALOME_ContainerPy_i::_get_MachineName" )
 261         self._machineName = "localhost"
 262         return self._machineName
 263
 264     #-------------------------------------------------------------------------
 265
 266     def Shutdown(self):
 267         self._naming_service.Destroy_Name(self._containerName);
 268         self._naming_service.Destroy_FullDirectory(self._containerName);
 269         self._orb.shutdown(0)
 270         pass
 271
 272     def _get_logfilename(self):
 273       return self._logfilename
 274     def _set_logfilename(self,logfilename):
 275       self._logfilename=logfilename
 276     def _get_workingdir(self):
 277       return os.getcwd()
 278
 279 #=============================================================================
 280
 281 class SALOME_ContainerPy_i(SALOME_ContainerPy_Gen_i):
 282     """
 283     Implementation with naming_service server
 284     """
 285     def __init__(self, orb, poa, containerName):
 286         SALOME_ContainerPy_Gen_i.__init__(self, orb, poa, containerName)
 287         naming_service = SALOME_NamingServicePy_i(self._orb)
 288         self._naming_service = naming_service
 289         MESSAGE( str(Container_path) )
 290         naming_service.Register(self._this(), Container_path)
 291
 292     #-------------------------------------------------------------------------
 293
 294     def start_impl(self, ContainerName):
 295         MESSAGE(  "SALOME_ContainerPy_i::start_impl " + str(ContainerName) )
 296         myMachine=getShortHostName()
 297         theContainer = "/Containers/" + myMachine + "/" + ContainerName
 298         try:
 299             obj = self._naming_service.Resolve(theContainer)
 300         except :
 301             obj = None
 302             MESSAGE(  "SALOME_ContainerPy_i::start_impl " + str(ContainerName) + ".object not found in Naming Service" )
 303         if obj is None:
 304             container = None
 305         else:
 306             container = obj._narrow(Engines.Container)
 307             if container is None:
 308                 MESSAGE( "SALOME_ContainerPy_i::start_impl " + str(containerName) + ".object exists but is not a Container" )
 309             else :
 310                 MESSAGE( "SALOME_ContainerPy_i::start_impl " + str(ContainerName) + ".object found without new launch" )
 311             return container
 312         #shstr = os.getenv( "PWD" ) + "/"
 313         #shstr += "runSession ./SALOME_ContainerPy.py "
 314         shstr = os.getenv("KERNEL_ROOT_DIR") + "/bin/salome/SALOME_ContainerPy.py ";
 315         #shstr = "runSession SALOME_ContainerPy.py "
 316         shstr += ContainerName
 317
 318         # mpv: fix for SAL4731 - always create new file to write log of server
 319         num = 1
 320         fileName = ""
 321         while 1:
 322             fileName = "/tmp/"+ContainerName+"_%i.log"%num
 323             if not os.path.exists(fileName):
 324                 break
 325             num += 1
 326             pass
 327
 328         shstr += " > "
 329         shstr += fileName
 330         shstr += " 2>&1 &"
 331
 332         #shstr += " > /tmp/"
 333         #shstr += ContainerName
 334         #shstr += ".log 2>&1 &"
 335
 336         MESSAGE(  "SALOME_ContainerPy_i::start_impl " + "os.system(" + str(shstr) + ")" )
 337         os.system( shstr )
 338         count = 21
 339         while container is None :
 340             time.sleep(1)
 341             count = count - 1
 342             MESSAGE(  str(count) + ". Waiting for " + str(theContainer) )
 343             try :
 344                 obj = self._naming_service.Resolve(theContainer)
 345             except :
 346                 obj = None
 347             if obj is None:
 348                 container = None
 349             else:
 350                 container = obj._narrow(Engines.Container)
 351                 if container is None:
 352                     MESSAGE(  str(containerName) + ".object exists but is not a Container" )
 353                 return container
 354             if count == 0 :
 355                 return container
 356
 357     pass
 358
 359 class SALOME_ContainerPy_SSL_i(SALOME_ContainerPy_Gen_i):
 360     """
 361     Implementation with naming_service server
 362     """
 363     def __init__(self, orb, poa, containerName):
 364         SALOME_ContainerPy_Gen_i.__init__(self, orb, poa, containerName)
 365         naming_service = SALOME_Embedded_NamingService()
 366         self._naming_service = naming_service._this()
 367
 368     def get_embedded_NS_if_ssl(self):
 369         return self._naming_service
 370
 371 if __name__ == "__main__":
 372   # change the stdout buffering to line buffering (same as C++ cout buffering)
 373   sys.stdout=os.fdopen(1,"w",1)
 374   #initialise the ORB and find the root POA
 375   if verbose():print("Starting ",sys.argv[1])
 376   orb = CORBA.ORB_init(sys.argv, CORBA.ORB_ID)
 377   poa = orb.resolve_initial_references("RootPOA")
 378   if verbose():print("ORB and POA initialized")
 379
 380   #create an instance of SALOME_ContainerPy_i and a Container reference
 381   #containerName = "FactoryServerPy"
 382   MESSAGE( str(sys.argv) )
 383   containerName = sys.argv[1]
 384   cpy_i = SALOME_ContainerPy_i(orb, poa, containerName)
 385   if verbose():print("SALOME_ContainerPy_i instance created ",cpy_i)
 386   cpy_o = cpy_i._this()
 387   if verbose():print("SALOME_ContainerPy_i instance activated ",cpy_o)
 388   sys.stdout.flush()
 389   sys.stderr.flush()
 390
 391   #activate the POA
 392   poaManager = poa._get_the_POAManager()
 393   poaManager.activate()
 394
 395   #Block for ever
 396   orb.run()
 397   if verbose():print("SALOME_ContainerPy_i shutdown")