/// <summary>
/// Determine if the handler can handle the specified message given the specified query.
/// </summary>
/// <param name="message">The message.</param>
/// <param name="query">The query.</param>
/// <returns><c>true</c>, if the handler can handle the message; otherwise, <c>false</c>.</returns>
public bool CanHandle(IMessage message, IQueryResponse query)
{
if (message == null || query == null)
{
return(false);
}
return(typeof(TMessage) == message.GetType() && typeof(TQuery) == query.GetType());
}
/// <summary>
/// Gets the server message handlers that can handle the specified message and query. This method will
/// intentionally throw an exception if no handlers could be found.
/// </summary>
/// <param name="message">The message.</param>
/// <param name="query">The query.</param>
/// <returns>A collection of message handlers.</returns>
/// <exception cref="System.ArgumentException">Argument Exception.</exception>
public IEnumerable <IServerMessageHandler> GetHandlers(IMessage message, IQueryResponse query)
{
if (!this.handlers.Any(h => h.CanHandleMessageType(message)))
{
throw new ArgumentException(
$"Could not locate any server message handlers for the message type, '{message.GetType()}', " +
$"and the query type, '{query.GetType()}'. Did you forget to write a server message handler?");
}
var result = this.handlers.Where(x => x.CanHandle(message, query)).ToList();
return(result);
}
