private async ValueTask GetSchema(TopicName topicName, byte[] version)
{
var request = Commands.NewGetSchema(_requestId, topicName.ToString(), BytesSchemaVersion.Of(version));
var payload = new Payload(request, _requestId, "SendGetRawSchema");
var askResponse = await _clientCnx.Ask <AskResponse>(payload);
if (askResponse.Failed)
{
_replyTo.Tell(askResponse);
return;
}
var schemaResponse = askResponse.ConvertTo <Messages.GetSchemaResponse>();
var err = schemaResponse.Response.ErrorCode;
if (err != ServerError.UnknownError)
{
var e = $"{err}: {schemaResponse.Response.ErrorMessage}";
_log.Error(e);
_replyTo.Tell(new AskResponse(new PulsarClientException(new Exception(e))));
}
else
{
var schema = schemaResponse.Response.Schema;
var info = new SchemaInfo
{
Schema = schema.SchemaData,
Name = schema.Name,
Properties = schema.Properties.ToDictionary(k => k.Key, v => v.Value),
Type = SchemaType.ValueOf((int)schema.type)
};
_replyTo.Tell(new AskResponse(new GetSchemaInfoResponse(info)));
}
}
public static SchemaType GetSchemaTypeFor(SchemaType type)
{
if (type.Value < 0)
{
// this is unexpected
return(SchemaType.NONE);
}
else
{
return(SchemaType.ValueOf(type.Value));
}
}
public static SchemaType GetSchemaType(Proto.Schema.Type type)
{
if (type < 0)
{
// this is unexpected
return(SchemaType.NONE);
}
else
{
return(SchemaType.ValueOf((int)type));
}
}
private static ISchemaInfo DecodeSubSchemaInfo(ISchemaInfo parentSchemaInfo, string schemaNameProperty, string schemaTypeProperty, string schemaPropsProperty, byte[] schemaData)
{
var parentSchemaProps = parentSchemaInfo.Properties;
var schemaName = parentSchemaProps.GetOrDefault(schemaNameProperty, "");
var schemaType = SchemaType.ValueOf(parentSchemaProps.GetOrDefault(schemaTypeProperty, SchemaType.BYTES.Name));
IDictionary <string, string> schemaProps;
if (!parentSchemaProps.TryGetValue(schemaPropsProperty, out var schemaPropsStr))
{
schemaProps = new Dictionary <string, string>();
}
else
{
schemaProps = SchemaUtils.DeserializeSchemaProperties(schemaPropsStr);
}
return(new SchemaInfo
{
Name = schemaName,
Type = schemaType,
Schema = schemaData,
Properties = schemaProps
});
}
