//-----------------------------------------------------------------------
void ResourceManager::addImpl( ResourcePtr& res )
{
OGRE_LOCK_AUTO_MUTEX;
std::pair<ResourceMap::iterator, bool> result;
if(ResourceGroupManager::getSingleton().isResourceGroupInGlobalPool(res->getGroup()))
{
result = mResources.insert( ResourceMap::value_type( res->getName(), res ) );
}
else
{
ResourceWithGroupMap::iterator itGroup = mResourcesWithGroup.find(res->getGroup());
// we will create the group if it doesn't exists in our list
if( itGroup == mResourcesWithGroup.end())
{
ResourceMap dummy;
mResourcesWithGroup.insert( ResourceWithGroupMap::value_type( res->getGroup(), dummy ) );
itGroup = mResourcesWithGroup.find(res->getGroup());
}
result = itGroup->second.insert( ResourceMap::value_type( res->getName(), res ) );
}
// Attempt to resolve the collision
ResourceLoadingListener* listener = ResourceGroupManager::getSingleton().getLoadingListener();
if (!result.second && listener)
{
if(listener->resourceCollision(res.get(), this) == false)
{
// explicitly use previous instance and destroy current
res.reset();
return;
}
// Try to do the addition again, no seconds attempts to resolve collisions are allowed
if(ResourceGroupManager::getSingleton().isResourceGroupInGlobalPool(res->getGroup()))
{
result = mResources.insert( ResourceMap::value_type( res->getName(), res ) );
}
else
{
ResourceWithGroupMap::iterator itGroup = mResourcesWithGroup.find(res->getGroup());
result = itGroup->second.insert( ResourceMap::value_type( res->getName(), res ) );
}
}
if (!result.second)
{
OGRE_EXCEPT(Exception::ERR_DUPLICATE_ITEM, "Resource with the name " + res->getName() +
" already exists.", "ResourceManager::add");
}
// Insert the handle
std::pair<ResourceHandleMap::iterator, bool> resultHandle =
mResourcesByHandle.insert( ResourceHandleMap::value_type( res->getHandle(), res ) );
if (!resultHandle.second)
{
OGRE_EXCEPT(Exception::ERR_DUPLICATE_ITEM, "Resource with the handle " +
StringConverter::toString((long) (res->getHandle())) +
" already exists.", "ResourceManager::add");
}
}
