/// <summary>
/// Registers a middleware to serialize protobuf messages using schema registry
/// </summary>
/// <param name="middlewares">The middleware configuration builder</param>
/// <param name="config">The json serializer configuration</param>
/// <returns></returns>
public static IProducerMiddlewareConfigurationBuilder AddSchemaRegistryProtobufSerializer(
this IProducerMiddlewareConfigurationBuilder middlewares,
ProtobufSerializerConfig config = null)
{
return(middlewares.AddSerializer(
resolver => new ConfluentProtobufSerializer(resolver, config),
resolver => new SchemaRegistryTypeResolver(new ConfluentProtobufTypeNameResolver(resolver.Resolve <ISchemaRegistryClient>()))));
}
/// <summary>
/// Initializes a new instance of the <see cref="ConfluentProtobufSerializer"/> class.
/// </summary>
/// <param name="resolver">An instance of <see cref="IDependencyResolver"/></param>
/// <param name="serializerConfig">An instance of <see cref="ProtobufSerializerConfig"/></param>
public ConfluentProtobufSerializer(IDependencyResolver resolver, ProtobufSerializerConfig serializerConfig)
{
this.schemaRegistryClient =
resolver.Resolve <ISchemaRegistryClient>() ??
throw new InvalidOperationException(
$"No schema registry configuration was found. Set it using {nameof(ClusterConfigurationBuilderExtensions.WithSchemaRegistry)} on cluster configuration");
this.serializerConfig = serializerConfig;
}
internal ProtobufSerializerConfig GetSerializerConfig(ISchemaRegistryConfig config)
{
var c = new ProtobufSerializerConfig();
if (config.AutoRegisterSchemas.HasValue)
{
c.AutoRegisterSchemas = config.AutoRegisterSchemas;
}
if (config.BufferBytes.HasValue)
{
c.BufferBytes = config.BufferBytes.Value;
}
if (config.UseDeprecatedFormat.HasValue)
{
c.UseDeprecatedFormat = config.UseDeprecatedFormat.Value;
}
if (config.SkipKnownTypes.HasValue)
{
c.SkipKnownTypes = config.SkipKnownTypes.Value;
}
if (config.SubjectNameStrategy.HasValue)
{
c.SubjectNameStrategy = (Confluent.SchemaRegistry.SubjectNameStrategy)config.SubjectNameStrategy.Value;
}
if (config.ReferenceSubjectNameStrategy.HasValue)
{
c.ReferenceSubjectNameStrategy = (Confluent.SchemaRegistry.ReferenceSubjectNameStrategy)config.ReferenceSubjectNameStrategy.Value;
}
if (config.UseLatestVersion.HasValue)
{
c.UseLatestVersion = config.UseLatestVersion.Value;
}
return(c);
}