OMKName.cpp

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/*
 * This file is part of openMask � INRIA, CNRS, Universite de Rennes 1 1993-2002, thereinafter the Software
 * 
 * The Software has been developped within the Siames Project. 
 * INRIA, the University of Rennes 1 and CNRS jointly hold intellectual property rights
 * 
 * The Software has been registered with the Agence pour la Protection des
 * Programmes (APP) under registration number IDDN.FR.001.510008.00.S.P.2001.000.41200
 *  
 * This file may be distributed under the terms of the Q Public License
 * version 1.0 as defined by Trolltech AS of Norway and appearing in the file
 * LICENSE.QPL included in the packaging of this file.
 *
 * Licensees holding valid specific licenses issued by INRIA, CNRS or Universit� de Rennes 1 
 * for the software may use this file in accordance with that specific license
 *
 */
#include <OMKNameServer.h>
#include <OMKPolator.h>
#include "OMKOutgoingSynchronisationMessage.h"

using namespace std ;
using namespace OMK ;

NameServer * Name::_nameServer = getNameServer() ; 
const Name::idType Name::_maxReservedId = 21 ;

NameServer *
Name::getNameServer ()
{
   static bool initialised = false ;
   if ( ! initialised )
      {
         _nameServer = new NameServer () ;
         initialised = true ;
      }
   return _nameServer ;
}


void 
Name::setNameServer ( NameServer * newNameServer )
{
   // the new name server is only installed if it has the same pairs <id,char *> as the old one.
  if ( newNameServer->includes( *_nameServer ) ) 
    {
     _nameServer = newNameServer ;
    }
  else 
    {
      OMMESSAGE( "WARNING : the name server wasn't changed because it wasn't equal to the old one" );
    }
}


Name::Name(idType i) 
{
   OMTRACEID( OMK_DEBUG_OMK_NAME, "Name::Name(idType " << i << " )" ) ;
   OMASSERT( i < _maxReservedId ) ;
   _identifier = i ;
   getNameServer()->created( _identifier , this );
   OMTRACEID( OMK_DEBUG_OMK_NAME, "Name::Name(idType) end" ) ;   
}

Name::Name() 
{
   OMTRACEID( OMK_DEBUG_OMK_NAME, "Name::Name()" ) ;
   _identifier=0;
   getNameServer()->created( _identifier, this );
   OMTRACEID( OMK_DEBUG_OMK_NAME, "Name::Name() end" ) ;
}

Name::Name(const char * name)
{
   OMTRACEID( OMK_DEBUG_OMK_NAME, "Name::Name(const char * (" << (void*)name << ")\"" << name << "\" )"
     << endl <<"Name server = " << (void*)getNameServer() ) ;
   _identifier = getNameServer()->getIdentifier(std::string(name));
   getNameServer()->created( _identifier, this ) ;
   OMTRACEID( OMK_DEBUG_OMK_NAME, "Name::Name(const char *) end" );
}



Name::Name(const std::string & name)
{
   OMTRACEID( OMK_DEBUG_OMK_NAME, "Name::Name(const std::string & \"" << name << "\" )"
     << endl <<"Name server = " << (void*)getNameServer() ) ;
   _identifier = getNameServer()->getIdentifier(name);
   getNameServer()->created( _identifier, this ) ;
   OMTRACEID( OMK_DEBUG_OMK_NAME, "Name::Name(const std::string &) end" ) ;
}


Name::Name(const Name & aCopier)
{
   OMTRACEID( OMK_DEBUG_OMK_NAME, "Name::Name(const Name & \"" << aCopier << "\") " << aCopier._identifier ) ;
   _identifier = aCopier._identifier;
   getNameServer()->created(_identifier,this);
   OMTRACEID( OMK_DEBUG_OMK_NAME, "Name::Name(const Name &) end" ) ;
} 

Name::~Name()
{
        getNameServer()->deleted( _identifier, this );
}



OMK::Type::PolatorNT * Name::createPolator (void)
{
   return new OMK::Type::Polator<Name>();
}


const char * Name::getCString() const 
{
   //OMTRACEID( OMK_DEBUG_OMK_NAME, "Name::getCString()" ) ;
   const char * result = ( getNameServer()->getStringAssociatedTo( _identifier ) ).c_str() ;
   //OMTRACEID( OMK_DEBUG_OMK_NAME, "Name::getCString() returns \"" << resul << "\"" ) ;
   return result ;
}

const std::string & Name::getString() const 
{
   OMTRACEID( OMK_DEBUG_OMK_NAME, "Name::getString()" ) ;
   return getNameServer()->getStringAssociatedTo( _identifier ) ;
}


void Name::insertInStream( ostream & out ) const 
{
//     cerr<<"Name::insertInStream of id "<<_identifier<<endl;
//     cerr<<"Name::insertInStream of "<<getNameServer()->getStringAssociatedTo(_identifier)<<endl;
   out << getNameServer()->getStringAssociatedTo( _identifier );
}


void Name::extract(istream & in)
{
  std::string name ;
   in >> name ;
   idType oldIdentifier = _identifier ;

   _identifier = getNameServer()->getIdentifier ( name );

   getNameServer()->created( _identifier, this );

   getNameServer()->deleted( oldIdentifier, this );
}






Name & Name::operator = (const std::string & original) 
{
   // copy into onself : creation must happen before deletion
   idType oldIdentifier = _identifier ;

   _identifier = getNameServer()->getIdentifier( original );

   getNameServer()->created(_identifier, this);

   getNameServer()->deleted( oldIdentifier, this );

   return *this;
}


Name & Name::operator = (const char * original) 
{
   return *this = std::string( original ) ;
}


Name & Name::operator = (const Name & aCopier) 
{
   // copy into onself
   idType oldIdentifier = _identifier ;

   _identifier = aCopier._identifier;
   getNameServer()->created( _identifier, this );

   getNameServer()->deleted( oldIdentifier, this );

   return *this;
}


bool OMK::operator < (const Name & premier, const Name & second) 
{ 
   return premier._identifier < second._identifier; 
}


bool OMK::operator > (const Name & premier, const Name & second) 
{ 
   return premier._identifier > second._identifier; 
}


bool OMK::operator <= (const Name & premier, const Name & second) 
{ 
   return premier._identifier <= second._identifier; 
}



bool OMK::operator >= (const Name & premier, const Name & second) 
{ 
   return premier._identifier >= second._identifier; 
}


void Name::unpack (IncomingSynchronisationMessage & in ) 
{
   idType oldIdentifier = _identifier ;

   in>>_identifier ;
   getNameServer()->created( _identifier, this ); 

   getNameServer()->deleted( oldIdentifier, this ); 
}
   

void Name::pack (OutgoingSynchronisationMessage & out) const 
{
  out << _identifier ;
}

void Name::changeId ( idType oldId, idType newId )
{
   //cerr<<"Name::changeId ( "<<oldId<    <", "<<newId<<" ) "<<endl;
   //this is called by the name server : do not need to call back to keep the books
   OMASSERTM( oldId == _identifier, "" ) ;

   _identifier = newId ;
}

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