/// <summary>
/// Serializes the log and topics to bytes.
/// </summary>
/// <returns></returns>
private (List <byte[]>, List <byte[]>) Serialize(IContractPrimitiveSerializer serializer)
{
var logType = this.LogStruct.GetType();
// first topic is the log type name
var logTypeName = serializer.Serialize(logType.Name);
var topics = new List <byte[]> {
logTypeName
};
var fields = new List <byte[]>();
// rest of the topics are the indexed fields.
foreach (FieldInfo field in logType.GetFields())
{
object value = field.GetValue(this.LogStruct);
byte[] serialized = value != null
? serializer.Serialize(value)
: new byte[0];
if (field.CustomAttributes.Any(y => y.AttributeType == typeof(IndexAttribute)))
{
// It's an index, add to the topics
topics.Add(serialized);
}
fields.Add(serialized);
}
return(topics, fields);
}
/// <summary>
/// Transforms this log into the log type used by consensus.
///
/// TODO: Cache this value.
/// </summary>
public Log ToLog(IContractPrimitiveSerializer serializer)
{
var topics = new List <byte[]>();
// first topic is the log type name
topics.Add(Encoding.UTF8.GetBytes(this.LogStruct.GetType().Name));
// rest of the topics are the indexed fields.
foreach (FieldInfo field in this.LogStruct.GetType().GetFields().Where(x => x.CustomAttributes.Any(y => y.AttributeType == typeof(IndexAttribute))))
{
object value = field.GetValue(this.LogStruct);
byte[] serialized = serializer.Serialize(value);
topics.Add(serialized);
}
return(new Log(this.ContractAddress, topics, serializer.Serialize(this.LogStruct)));
}
/// <summary>
/// Transforms this log into the log type used by consensus.
/// </summary>
public Log ToLog(IContractPrimitiveSerializer serializer)
{
var topics = new List <byte[]>();
// first topic is the log type name
topics.Add(Encoding.UTF8.GetBytes(this.LogStruct.GetType().Name));
// rest of the topics are the indexed fields. TODO: This currently gets all fields.
foreach (FieldInfo field in this.LogStruct.GetType().GetFields())
{
object value = field.GetValue(this.LogStruct);
byte[] serialized = serializer.Serialize(value);
topics.Add(serialized);
}
return(new Log(this.ContractAddress, topics, serializer.Serialize(this.LogStruct)));
}
