/*
* Load a database and adapt to the description if needed
*/
CDatabase* CDbManager::loadDatabase(TDatabaseId id, const string& description, CLog* log)
{
CHECK_DB_MGR_INIT(loadDatabase, false);
nlinfo("CDbManager::loadDatabase(): load/setup database '%d'", id);
CDatabase* db = getDatabase(id);
// database not loaded yet?
if (db == NULL)
{
// create a memory image
db = createDatabase(id, log);
if (db == NULL)
{
log->displayNL("failed to create database '%d'", id);
return NULL;
}
// if can't load database
if (!db->loadState())
{
nlinfo("CDbManager::loadDatabase(): database '%d' doesn't exist, create new", id);
// create a new database with the new description
if (!db->createFromScratch(description))
{
log->displayNL("failed to create database '%d' from scratch", id);
return NULL;
}
return db;
}
}
CDatabase* adapted = db->adapt(description);
if (adapted == NULL)
{
log->displayNL("failed to adapt database '%s' to new description", db->getName().c_str());
return NULL;
}
// database changed?
if (db != adapted)
{
// replace old on with new one
_DatabaseMap[id] = adapted;
// and delete old
delete db;
}
return adapted;
}
/*
* load a database
*/
bool CDbManager::loadDatabase(TDatabaseId id, CLog* log)
{
CHECK_DB_MGR_INIT(loadDatabase, false);
// check db doesn't exist yet
CDatabase* db = getDatabase(id);
if (db == NULL)
{
log->displayNL("Unable to loadDatabase() %d, not created yet", id);
return false;
}
// check database not init'ed
if (db->initialised())
{
log->displayNL("Unable to loadDatabase() %d, already initialised as '%s'", id, db->getName().c_str());
return false;
}
return db->loadState();
}