#  -*- coding: iso-8859-1 -*-
#  Copyright (C) 2007-2010  CEA/DEN, EDF R&D, OPEN CASCADE
#
#  Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
#  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
#
#  This library is free software; you can redistribute it and/or
#  modify it under the terms of the GNU Lesser General Public
#  License as published by the Free Software Foundation; either
#  version 2.1 of the License.
#
#  This library is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
#  Lesser General Public License for more details.
#
#  You should have received a copy of the GNU Lesser General Public
#  License along with this library; if not, write to the Free Software
#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
#
#  See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
#

#  SALOME Logger : CORBA server managing trace output
#  File   : SALOME_Trace.py
#  Module : SALOME
#
import sys
import CosNaming
from omniORB import CORBA
import SALOME_Logger
import time
import os

trace="local"
if (os.environ.has_key("SALOME_trace")):
  if (os.environ["SALOME_trace"] == "with_logger"):
    trace="logger"

class SALOME_Trace :
    def __init__(self):
        self.m_pInterfaceLogger = None
        if trace=="logger":
            ok = 0
            steps = 40
            while steps > 0 and ok == 0:

              try:
                orb = CORBA.ORB_init(sys.argv, CORBA.ORB_ID)
                theObj = orb.resolve_initial_references("NameService")
                inc = theObj._narrow(CosNaming.NamingContext)
                name = [CosNaming.NameComponent("Logger","")]
                obj = inc.resolve(name);

                self.m_pInterfaceLogger = obj._narrow(SALOME_Logger.Logger)

                if not self.m_pInterfaceLogger is None:
                  ok = 1

              except CosNaming.NamingContext.NotFound, e :
                    if steps == 1: print "Caught exception: Naming Service can't found Logger"
              except (CORBA.TRANSIENT,CORBA.OBJECT_NOT_EXIST,CORBA.COMM_FAILURE):
                    if steps == 1: print "Caught CORBA::SystemException CommFailure"
              except CORBA.SystemException, e:
                    if steps == 1: print "Caught CORBA::SystemException."
              except CORBA.Exception, e:
                    if steps == 1: print "Caught CORBA::Exception."
              except Exception, e:
                    if steps == 1: print "Caught unknown exception."

              time.sleep(0.25)
              steps = steps - 1
	  
	  
    def putMessage ( self, LogMsg ) :
        
        if (CORBA.is_nil(self.m_pInterfaceLogger)):
            print  LogMsg;
        else:
            self.m_pInterfaceLogger.putMessage (LogMsg) 
   
