src/Container/SALOME_Container.py

   1 #  -*- coding: iso-8859-1 -*-
   2 # Copyright (C) 2007-2023  CEA, EDF, OPEN CASCADE
   3 #
   4 # Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   5 # CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   6 #
   7 # This library is free software; you can redistribute it and/or
   8 # modify it under the terms of the GNU Lesser General Public
   9 # License as published by the Free Software Foundation; either
  10 # version 2.1 of the License, or (at your option) any later version.
  11 #
  12 # This library is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 # Lesser General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU Lesser General Public
  18 # License along with this library; if not, write to the Free Software
  19 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  20 #
  21 # See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  22 #
  23
  24 #  SALOME Container : implementation of container and engine for Kernel
  25 #  File   : SALOME_Container.py
  26 #  Author : Paul RASCLE, EDF
  27 #  Module : SALOME
  28 #  $Header$
  29
  30 ## @package SALOME_Container
  31 # \brief python implementation of container interface for Kernel
  32 #
  33
  34 import os
  35 import sys
  36 import traceback
  37 import importlib
  38 from omniORB import CORBA, PortableServer
  39 import SALOMEDS
  40 import Engines, Engines__POA
  41 from SALOME_NamingServicePy import *
  42 from SALOME_ComponentPy import *
  43 import SALOME_PyNode
  44 import logging
  45
  46 from SALOME_utilities import *
  47 from Utils_Identity import getShortHostName
  48 from salome_utils import verbose
  49 from KernelBasis import VerbosityActivated,getSSLMode
  50
  51 #=============================================================================
  52
  53 #define an implementation of the container interface for embedding in Container implemented in C++
  54
  55 class SALOME_Container_i:
  56     _orb = None
  57     _poa = None
  58     _containerName = ""
  59     _naming_service = None
  60
  61     #-------------------------------------------------------------------------
  62
  63     def __init__(self ,containerName, containerIORStr, dftTimeIntervalInMs):
  64         # Warning this part of code is called at the very first step of container launching
  65         # so logging is not instanciate. So use verbose method to discrimine if a message should be printed or not
  66         try:
  67           argv = sys.argv
  68         except AttributeError :
  69           # for embedded python interpreter
  70           # shouldn't be needed after python 3.8
  71           # see https://bugs.python.org/issue32573
  72           argv = ['']
  73         self._orb = CORBA.ORB_init(argv, CORBA.ORB_ID)
  74         self._poa = self._orb.resolve_initial_references("RootPOA")
  75         self._containerName = containerName
  76         self._logFileName = None
  77         self._timeIntervalInMs = dftTimeIntervalInMs
  78         self._logm = None
  79         self._log = None
  80         self._container = self._orb.string_to_object(containerIORStr)
  81
  82     @property
  83     def logm(self):
  84         import salome
  85         if self._logm is None:
  86            salome.salome_init()
  87            self._logm = salome.logm
  88         return self._logm
  89
  90     #-------------------------------------------------------------------------
  91
  92     def import_component(self, componentName):
  93         ret=""
  94         try:
  95             logging.debug("try import ",componentName)
  96             importlib.import_module(componentName)
  97             logging.debug("import ",componentName," successful")
  98         except ImportError:
  99             #can't import python module componentName
 100             #try to find it in python path
 101             try:
 102               _specs = importlib.util.find_spec(componentName)
 103               _module = importlib.util.module_from_spec(_specs)
 104               _specs.loader.exec_module(_module)
 105               #module file found in path
 106               ret="Component "+componentName+": Python implementation found but it can't be loaded\n"
 107               ret=ret+traceback.format_exc(10)
 108             except ImportError as ee:
 109               ret="ImplementationNotFound"
 110             except Exception:
 111               print("error when calling find_module")
 112               ret="ImplementationNotFound"
 113         except Exception:
 114             ret="Component "+componentName+": Python implementation found but it can't be loaded\n"
 115             ret=ret+traceback.format_exc(10)
 116             traceback.print_exc()
 117             print("import ",componentName," not possible")
 118         return ret
 119
 120     #-------------------------------------------------------------------------
 121
 122     def create_component_instance(self, componentName, instanceName):
 123         comp_iors=""
 124         ret=""
 125         try:
 126             component=importlib.import_module(componentName)
 127             factory=getattr(component,componentName)
 128             comp_i=factory(self._orb,
 129                            self._poa,
 130                            self._container,
 131                            self._containerName,
 132                            instanceName,
 133                            componentName)
 134
 135             comp_o = comp_i._this()
 136             comp_iors = self._orb.object_to_string(comp_o)
 137         except Exception:
 138             ret=traceback.format_exc(10)
 139             traceback.print_exc()
 140         return comp_iors, ret
 141
 142
 143     def create_pynode(self,nodeName,code):
 144         try:
 145           node=SALOME_PyNode.PyNode_i(nodeName,code,self._poa,self)
 146           id_o = self._poa.activate_object(node)
 147           comp_o = self._poa.id_to_reference(id_o)
 148           comp_iors = self._orb.object_to_string(comp_o)
 149           return 0,comp_iors
 150         except Exception:
 151           exc_typ,exc_val,exc_fr=sys.exc_info()
 152           l=traceback.format_exception(exc_typ,exc_val,exc_fr)
 153           return 1,"".join(l)
 154
 155     def create_pyscriptnode(self,nodeName,code):
 156         try:
 157           logscript = None
 158           if getSSLMode():
 159             logscript = self._log.addScript(nodeName,code)
 160           node=SALOME_PyNode.PyScriptNode_i(nodeName,code,self._poa,self, logscript)
 161           id_o = self._poa.activate_object(node)
 162           comp_o = self._poa.id_to_reference(id_o)
 163           comp_iors = self._orb.object_to_string(comp_o)
 164           return 0,comp_iors
 165         except Exception:
 166           exc_typ,exc_val,exc_fr=sys.exc_info()
 167           l=traceback.format_exception(exc_typ,exc_val,exc_fr)
 168           print("".join(l)) ; sys.stdout.flush() # print error also in logs of remote container
 169           return 1,"".join(l)
 170
 171     def positionVerbosityOfLogger(self):
 172         if VerbosityActivated():
 173           import salome_utils
 174           salome_utils.positionVerbosityOfLoggerRegardingState()
 175
 176     def monitoringtimeresms(self):
 177         return self._timeIntervalInMs
 178
 179     def setLogFileName(self, logFileName):
 180         if getSSLMode():
 181           self._log = self.logm.declareContainer( self._containerName, logFileName )
 182
 183     def SetMonitoringtimeresms(self , value):
 184         self._timeIntervalInMs = value