/// <summary>
/// Fetches a request from the contract storage and processes it.
/// </summary>
private void ProcessRequest(Storage storage, BigInteger ID)
{
var base_key = ID.ToByteArray();
var req_owner_key = request_owner_prefix.Concat(base_key).ToArray();
var req_key_key = request_key_prefix.Concat(base_key).ToArray();
var req_uuid_key = request_key_prefix.Concat(base_key).ToArray();
var req_val_key = request_value_prefix.Concat(base_key).ToArray();
var uuid = Encoding.UTF8.GetString(storage.Get(req_uuid_key));
var value = Encoding.ASCII.GetString(storage.Get(req_val_key));
var temp = storage.Get(req_key_key);
var operation = (char)temp[0];
var key = Encoding.UTF8.GetString(temp.Skip(1).ToArray());
switch (operation)
{
case 'C':
{
this.swarm.Create(uuid, key, value);
break;
}
case 'R':
{
var read = this.swarm.Read(uuid, key);
var push_tx = neo_api.CallContract(owner_keys, bluzelle_contract_hash, "api_push", new object[] { uuid, key, read });
neo_api.WaitForTransaction(owner_keys, push_tx);
break;
}
case 'U':
{
this.swarm.Update(uuid, key, value);
break;
}
case 'D':
{
this.swarm.Delete(uuid, key);
break;
}
}
}
/// <summary>
/// Catches and processes all notifications triggered in a Neo transaction
/// </summary>
/// <param name="tx"></param>
private void ProcessNotifications(Transaction tx)
{
// add the transaction to the cache
transactions[tx.Hash] = tx;
var notifications = listenerVM.GetNotifications(tx);
if (notifications == null)
{
return;
}
foreach (var entry in notifications)
{
switch (entry.Name)
{
case "blz_create": {
if (entry.Args.Length != 3)
{
throw new Exception($"Swarm.Create expects 3 arguments");
}
var uuid = (byte[])entry.Args[0];
var key = (byte[])entry.Args[1];
var value = (byte[])entry.Args[2];
this.swarm.Create(uuid, key, value);
break;
}
case "blz_read":
{
if (entry.Args.Length != 2)
{
throw new Exception($"Swarm.Read expects 2 arguments");
}
var uuid = (byte[])entry.Args[0];
var key = (byte[])entry.Args[1];
var value = this.swarm.Read(uuid, key);
var push_tx = neo_api.CallContract(owner_keys, bluzelle_contract_hash, "api_push", new object[] { uuid, key, value });
neo_api.WaitForTransaction(owner_keys, push_tx);
break;
}
case "blz_update":
{
if (entry.Args.Length != 3)
{
throw new Exception($"Swarm.Update expects 3 arguments");
}
var uuid = (byte[])entry.Args[0];
var key = (byte[])entry.Args[1];
var value = (byte[])entry.Args[2];
this.swarm.Update(uuid, key, value);
// public static event Action<byte[], byte[], byte[]> OnUpdate;
break;
}
case "blz_delete":
{
if (entry.Args.Length != 2)
{
throw new Exception($"Swarm.Delete expects 2 arguments");
}
var uuid = (byte[])entry.Args[0];
var key = (byte[])entry.Args[1];
this.swarm.Remove(uuid, key);
break;
}
}
}
}
