protected override EvmChainEventArgs TransformChainEvent(RawChainEventArgs e)
{
Event evt = new Event();
evt.MergeFrom(e.Data);
byte[][] topics = new byte[evt.Topics.Count][];
for (int i = 0; i < evt.Topics.Count; i++)
{
topics[i] = evt.Topics[i].ToByteArray();
}
// First topic is a signature of event itself
string eventName;
this.topicToEventName.TryGetValue(topics[0], out eventName);
return(new EvmChainEventArgs(
e.ContractAddress,
e.CallerAddress,
e.BlockHeight,
evt.Data.ToByteArray(),
topics,
eventName
));
}
protected override EvmChainEventArgs TransformChainEvent(RawChainEventArgs e)
{
if (e.Topics == null)
{
throw new ArgumentNullException("topics");
}
for (int i = 0; i < e.Topics.Length; i++)
{
// Remove 0x
e.Topics[i] = e.Topics[i].Substring(2);
}
// First topic is a signature of event itself
string eventName;
this.topicToEventName.TryGetValue(e.Topics[0], out eventName);
return(new EvmChainEventArgs(
e.ContractAddress,
e.CallerAddress,
e.BlockHeight,
e.Data,
eventName,
e.Topics
));
}
protected virtual void NotifyContractEventReceived(object sender, RawChainEventArgs e)
{
if (e.ContractAddress.Equals(this.Address))
{
InvokeChainEvent(sender, e);
}
}
protected void InvokeChainEvent(object sender, RawChainEventArgs e)
{
if (this.eventReceived != null)
{
this.eventReceived(this, TransformChainEvent(e));
}
}
protected override ChainEventArgs TransformChainEvent(RawChainEventArgs e)
{
string jsonRpcEventString = Encoding.UTF8.GetString(e.Data);
JsonRpcEvent jsonRpcEvent = JsonConvert.DeserializeObject <JsonRpcEvent>(jsonRpcEventString);
byte[] eventData = Encoding.UTF8.GetBytes(jsonRpcEvent.Data);
return(new ChainEventArgs(
e.ContractAddress,
e.CallerAddress,
e.BlockHeight,
eventData,
jsonRpcEvent.Method
));
}
protected abstract TChainEvent TransformChainEvent(RawChainEventArgs e);
