/
AvroMessageSerializerBuilder.cs
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/
AvroMessageSerializerBuilder.cs
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// Copyright (c) 2020 Sergio Aquilini
// This code is licensed under MIT license (see LICENSE file for details)
using System;
using Confluent.SchemaRegistry;
using Confluent.SchemaRegistry.Serdes;
using Silverback.Messaging.Serialization;
using Silverback.Util;
namespace Silverback.Messaging.Configuration
{
/// <inheritdoc cref="IAvroMessageSerializerBuilder" />
public class AvroMessageSerializerBuilder : IAvroMessageSerializerBuilder
{
private AvroMessageSerializerBase? _serializer;
private Action<SchemaRegistryConfig>? _configureSchemaRegistryAction;
private Action<AvroSerializerConfig>? _configureSerializerAction;
/// <inheritdoc cref="IAvroMessageSerializerBuilder.UseType" />
public IAvroMessageSerializerBuilder UseType(Type messageType)
{
var serializerType = typeof(AvroMessageSerializer<>).MakeGenericType(messageType);
_serializer = (AvroMessageSerializerBase)Activator.CreateInstance(serializerType);
return this;
}
/// <inheritdoc cref="IAvroMessageSerializerBuilder.UseType{TMessage}" />
public IAvroMessageSerializerBuilder UseType<TMessage>()
where TMessage : class
{
_serializer = new AvroMessageSerializer<TMessage>();
return this;
}
/// <inheritdoc cref="IAvroMessageSerializerBuilder.Configure" />
public IAvroMessageSerializerBuilder Configure(
Action<SchemaRegistryConfig> configureSchemaRegistryAction,
Action<AvroSerializerConfig>? configureSerializerAction = null)
{
_configureSchemaRegistryAction = Check.NotNull(
configureSchemaRegistryAction,
nameof(configureSchemaRegistryAction));
_configureSerializerAction = configureSerializerAction;
return this;
}
/// <summary>
/// Builds the <see cref="IMessageSerializer" /> instance.
/// </summary>
/// <returns>
/// The <see cref="IMessageSerializer" />.
/// </returns>
public IMessageSerializer Build()
{
if (_serializer == null)
{
throw new InvalidOperationException("The message type was not specified. Please call UseType<TMessage>.");
}
_configureSchemaRegistryAction?.Invoke(_serializer.SchemaRegistryConfig);
_configureSerializerAction?.Invoke(_serializer.AvroSerializerConfig);
return _serializer;
}
}
}