/* 
 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; version 2 of the
 * License.
 * 
 * This program 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301  USA
 */


#include "stdafx.h"

#include "sql_facade.h"
#include "base/string_utilities.h"

using namespace grt;


SqlFacade::Ref SqlFacade::instance_for_db_obj(db_DatabaseObjectRef db_obj)
{
  db_mgmt_RdbmsRef rdbms;

  if (db_obj.is_instance(db_Table(db_obj.get_grt()).get_metaclass())
    || db_obj.is_instance(db_View(db_obj.get_grt()).get_metaclass())
    || db_obj.is_instance(db_Routine(db_obj.get_grt()).get_metaclass())
    || db_obj.is_instance(db_RoutineGroup(db_obj.get_grt()).get_metaclass()))
  {
    rdbms= db_mgmt_RdbmsRef::cast_from(db_obj->owner()->owner()->owner()->get_member("rdbms"));
  }
  else if (db_obj.is_instance(db_Schema(db_obj.get_grt()).get_metaclass()))
  {
    rdbms= db_mgmt_RdbmsRef::cast_from(db_obj->owner()->owner()->get_member("rdbms"));
  }

  return instance_for_rdbms(rdbms);
}


SqlFacade::Ref SqlFacade::instance_for_rdbms(db_mgmt_RdbmsRef rdbms)
{
  return  instance_for_rdbms_name(rdbms->get_grt(), rdbms->name());
}


SqlFacade::Ref SqlFacade::instance_for_rdbms_name(GRT *grt, const std::string &name)
{
  const char *def_module_name= "SqlFacade";
  std::string module_name= name + def_module_name;
  SqlFacade::Ref module= dynamic_cast<SqlFacade::Ref>(grt->get_module(module_name));
  if (!module)
		throw std::runtime_error(base::strfmt("Can't get '%s' module.", module_name.c_str()));
  return module;
}
