public void RetrieveFromInventory(VM vm, uint objectPID, uint ownerPID, bool setOnLot, VMAsyncInventoryRetrieveCallback callback)
{
//TODO: maybe a ring backup system for this too? may be more difficult
Host.InBackground(() =>
{
var result = new VMInventoryRestoreObject();
result.PersistID = objectPID;
if (objectPID == 0)
{
callback(result);
return;
}
//put object on this lot
using (var db = DAFactory.Get())
{
var obj = db.Objects.Get(objectPID);
if (obj == null || obj.owner_id != ownerPID)
{
callback(result); //object does not exist or request is for wrong owner.
}
RetrieveDbObject(vm, db, obj, ownerPID, setOnLot, callback);
}
});
}
private void RetrieveDbObject(VM vm, IDA db, DbObject obj, uint ownerID, bool setOnLot, VMAsyncInventoryRetrieveCallback callback)
{
var objectPID = obj.object_id;
var result = new VMInventoryRestoreObject();
result.PersistID = obj.object_id;
result.GUID = obj.type;
result.UpgradeLevel = (byte)obj.upgrade_level;
result.Wear = 0;
if (setOnLot) //if we should set this object as on this lot. false means we're getting the info for trade
{
if (!db.Objects.SetInLot(objectPID, (uint)Context.DbId))
{
callback(new VMInventoryRestoreObject()); //object is already on a lot. we cannot load it!
return;
}
}
else if (obj.lot_id != null)
{
callback(new VMInventoryRestoreObject()); //object is already on a lot, don't load it for trading.
return;
}
byte[] dat = null;
try
{
var objStr = objectPID.ToString("x8");
var path = Path.Combine(Config.SimNFS, "Objects/" + objStr + "/inventoryState.fsoo");
//if path does not exist, will throw FileNotFoundException
using (var file = File.Open(path, FileMode.Open))
{
dat = new byte[file.Length];
file.Read(dat, 0, dat.Length);
}
}
catch (Exception e)
{
//todo: specific types of exception that can be thrown here? instead of just catching em all
if (!(e is FileNotFoundException))
{
LOG.Error(e, "Failed to load inventory state for object " + objectPID.ToString("x8") + "!");
}
}
if (dat != null && dat.Length == 0)
{
dat = null; //treat empty files as if no state were available.
}
result.Data = dat;
callback(result);
}
