public IEnumerator Load <R>(DataLoader.IResultReceiver loader, string path)
where R : Google.Protobuf.IMessage <R>
{
//TODO: update csv if necessary (with assetbundle or something)
CSVSource s;
try {
#if UNITY_ANDROID && !UNITY_EDITOR
WWW www = new WWW(path);
yield return(www);
if (!string.IsNullOrEmpty(www.error))
{
throw new System.Exception(www.error);
}
s = new CSVSource(new StringReader(www.text));
#else
s = new CSVSource(new StreamReader(TrimBOM(path)));
#endif
} catch (System.Exception e) {
loader.Error = e;
yield break;
}
s.Read();
s.ReadHeader();
Source = s;
yield break;
}
public IEnumerator Load <R>(DataLoader.IResultReceiver loader, string path)
where R : Google.Protobuf.IMessage <R>
{
//get message parser by reflection
PropertyInfo propertyInfo;
propertyInfo = typeof(R).GetProperty("Parser", BindingFlags.Public | BindingFlags.Static);
// Use the PropertyInfo to retrieve the value from the type by not passing in an instance
Google.Protobuf.MessageParser <R> parser =
(Google.Protobuf.MessageParser <R>)propertyInfo.GetValue(null, null);
//get record name by reflection
var eth = Game.Main.RPCMgr.Eth;
string contract = path;
string name = typeof(R).Name;
//load local objects
int current_gen = 0;
var storage = Game.Main.StorageMgr;
var local_records = storage.LoadAllRecords(name, parser, out current_gen);
if (current_gen < 0)
{
loader.Error = new System.Exception("fail to load record");
yield break;
}
//get size of updated records
if (eth[contract] == null)
{
loader.Error = new System.Exception("contract not exists: name = " + contract);
yield break;
}
var call = eth[contract].Call("recordIdDiff");
Debug.Log("curent_gen:" + current_gen);
yield return(call.Exec(name, current_gen));
if (call.Error != null)
{
loader.Error = call.Error;
yield break;
}
int next_gen;
List <List <byte[]> > ids;
try {
var dto = call.AsDTO <RecordIdDiffOutput>();
if (int.TryParse(dto.NextGen.ToString(), out next_gen) && next_gen > 0)
{
ids = dto.IdChunks;
}
else
{
throw new System.Exception(name + ":gen number is too big or out of range:" +
dto.NextGen.ToString());
}
} catch (System.Exception e) {
Debug.Log("recordIdDiff error:" + e.Message + " at " + e.StackTrace);
loader.Error = e;
yield break;
}
//if updated records found, retrieve it from contract
if (ids.Count > 0)
{
HashSet <byte[]> hs = new HashSet <byte[]>();
//de-dupe duplicate record (update multiple time since last updated time)
for (int i = 0; i < ids.Count; i++)
{
for (int j = 0; j < ids[i].Count; j++)
{
hs.Add(ids[i][j]);
}
}
byte[][] updated_ids_distinct = hs.ToArray();
R[] updated_records = new R[updated_ids_distinct.Length];
//then query updated records
for (int n_query = 0; n_query < updated_ids_distinct.Length; n_query += BATCH_QUERY_SIZE)
{
var batch_ids = updated_ids_distinct.Skip(n_query).Take(BATCH_QUERY_SIZE).ToArray();
Debug.Log(name + ": n_query = " + n_query + " and " + batch_ids.Length);
call = eth[contract].Call("getRecords");
yield return(call.Exec(name, batch_ids));
if (call.Error != null)
{
loader.Error = call.Error;
yield break;
}
try {
var rs = call.AsMsgs <R>(parser, 0);
for (int i = n_query; i < (n_query + batch_ids.Length); i++)
{
local_records[batch_ids[i - n_query]] = rs[i];
updated_records[i] = rs[i];
}
} catch (System.Exception e) {
loader.Error = e;
yield break;
}
}
//save updated records into local storage
var err = storage.SaveRecords(next_gen, name, updated_ids_distinct, updated_records);
if (err != null)
{
loader.Error = err;
yield break;
}
}
else
{
Debug.Log(name + ": no update since last access:" + local_records.Count);
}
//set source
var s = new ConstractSource <R>(local_records.Count);
Source = s;
foreach (var kv in local_records)
{
s.Add(kv.Value);
}
s.Rewind();
yield break;
}
