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ObjectManager.cpp

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// $Header: /nfs/slac/g/glast/ground/cvs/GaudiSvc/src/ApplicationMgr/ObjectManager.cpp,v 1.1.1.2 2001/04/18 18:32:48 tlindner Exp $

// Framework Include files
#include "GaudiKernel/IFactory.h"
#include "GaudiKernel/IObjManager.h"
#include "GaudiKernel/ISvcLocator.h"
#include "GaudiKernel/MsgStream.h"
#include "ObjectManager.h"

// STL Include files
#include <iostream>

// constructor
ObjectManager::ObjectManager(ISvcLocator* svclocator) {
  m_objects = new Container();
  m_svclocator = svclocator;
  m_refcount   = 1;
  m_msgsvc     = 0;
}

// destructor
ObjectManager::~ObjectManager()   {
  delete m_objects;
}

// addRef
unsigned long ObjectManager::addRef() {
  m_refcount++;
        return m_refcount;
}

// release
unsigned long ObjectManager::release() {
  m_refcount--;
  if( m_refcount <= 0) {
    delete this;
  }
  return m_refcount;
}

// queryInterface
StatusCode ObjectManager::queryInterface(const IID& iid, void** pinterface) {
  if( iid == IID_IInterface ) {  
    *pinterface = (IInterface*)this;
    addRef();
    return StatusCode::SUCCESS;
  } 
  else if ( iid == IID_IObjManager ) {
    *pinterface = (IObjManager*)this;
    addRef();
    return StatusCode::SUCCESS;
  } 
  else {
    return StatusCode::FAILURE;
  }
  return StatusCode::SUCCESS;
}

// Declare an abastract Converter factory to be used to create instances of a given Converter type
StatusCode ObjectManager::declareObjFactory( const IFactory& factory )   {
  // Access the message service if not yet done already
  if( m_msgsvc == 0 ) {
    m_svclocator->getService( "MessageSvc", IID_IMessageSvc, (IInterface*&)m_msgsvc );
  }
  MsgStream log(m_msgsvc, "ObjectManager");

  const std::string& objtype = factory.ident(); // Factory identifier.
  for ( Container::iterator i = m_objects->begin(); i != m_objects->end(); i++ )    {
    if ( objtype == (*i)->ident() )   {
      log << MSG::WARNING << "Factory for class:" << factory.ident() 
                          << " already exists." << endreq;
      m_objects->erase(i);
      break;
    }
  }

  log << MSG::DEBUG << "Added object factory for class:" << factory.ident() << endreq;

  m_objects->push_back( & factory );
  return StatusCode::SUCCESS;
}

// Check the existance of an Converter with a given name in the list of known Converters
bool ObjectManager::existsObjFactory(const std::string& objtype             // Factory's object type
                              ) const   {
  for ( Container::const_iterator i = m_objects->begin(); i != m_objects->end(); i++ )    {
    if ( objtype == (*i)->ident() )   {
      return true;
    }
  }
  return false;
}

// Check the existance of an Converter with a given name in the list of known Converters
const IFactory* ObjectManager::objFactory(const std::string& objtype             // Factory's object type
                                         ) const
{
  for ( Container::const_iterator i = m_objects->begin(); i != m_objects->end(); i++ )    {
    if ( objtype == (*i)->ident() )   {
      return (*i);
    }
  }
  return 0;
}

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