public void EnsureInitialization(IConnection connection, IMessageParserRegistry messageParserRegistry)
{
if (connection is null)
{
throw new ArgumentNullException(nameof(connection));
}
if (messageParserRegistry is null)
{
throw new ArgumentNullException(nameof(messageParserRegistry));
}
if (!_initialized)
{
var messageParser = messageParserRegistry.Retrieve(_commandHandlerContext.ParserType);
if (!messageParser.CanParse(_commandHandlerContext.ParameterType))
{
throw new ServiceBuilderException($"The {_commandHandlerContext.ParserType} can not parse messages of type {_commandHandlerContext.ParameterType}.");
}
_consumer = connection.CreateConsumer(_commandHandlerContext.Topic);
_consumer.RegisterConsumer(_commandHandlerContext.Queue, (sender, args) =>
{
//TODO - Add manual acknowledge functionality.
var body = args.Body;
var message = messageParser.Parse(body);
_commandHandlerContext.TargetMethod.Invoke(_instance, new object[] { message });
});
_initialized = true;
}
}
public TopicSubscriptionActivator(IConnection connection, IMessageParserRegistry messageParserRegistry)
{
_connection = connection ?? throw new ArgumentNullException(nameof(connection));
_messageParserRegistry = messageParserRegistry ?? throw new ArgumentNullException(nameof(messageParserRegistry));
}