Line data    Source code

       1             : #region Copyright
       2             : // // -----------------------------------------------------------------------
       3             : // // <copyright company="Chinchilla Software Limited">
       4             : // //   Copyright Chinchilla Software Limited. All rights reserved.
       5             : // // </copyright>
       6             : // // -----------------------------------------------------------------------
       7             : #endregion
       8             : 
       9             : using System;
      10             : using System.Collections.Generic;
      11             : using Akka.Actor;
      12             : using cdmdotnet.Logging;
      13             : using Cqrs.Authentication;
      14             : using Cqrs.Events;
      15             : 
      16             : namespace Cqrs.Akka.Events
      17             : {
      18             :         /// <summary>
      19             :         /// Executes event handler methods.
      20             :         /// </summary>
      21             :         /// <typeparam name="TAuthenticationToken"></typeparam>
      22             :         public abstract class AkkaEventHandler<TAuthenticationToken>
      23             :                 : ReceiveActor // PersistentActor 
      24           1 :         {
      25             :                 /// <summary>
      26             :                 /// Gets or sets the <see cref="ILogger"/>.
      27             :                 /// </summary>
      28             :                 protected ILogger Logger { get; set; }
      29             : 
      30             :                 /// <summary>
      31             :                 /// Gets or sets the <see cref="ICorrelationIdHelper"/>.
      32             :                 /// </summary>
      33             :                 protected ICorrelationIdHelper CorrelationIdHelper { get; private set; }
      34             : 
      35             :                 /// <summary>
      36             :                 /// Gets or sets the <see cref="IAuthenticationTokenHelper{TAuthenticationToken}"/>.
      37             :                 /// </summary>
      38             :                 protected IAuthenticationTokenHelper<TAuthenticationToken> AuthenticationTokenHelper { get; private set; }
      39             : 
      40             :                 /// <summary>
      41             :                 /// Instantiates a new instance of <see cref="AkkaEventHandler{TAuthenticationToken}"/>.
      42             :                 /// </summary>
      43           1 :                 protected AkkaEventHandler(ILogger logger, ICorrelationIdHelper correlationIdHelper, IAuthenticationTokenHelper<TAuthenticationToken> authenticationTokenHelper)
      44             :                 {
      45             :                         Logger = logger;
      46             :                         CorrelationIdHelper = correlationIdHelper;
      47             :                         AuthenticationTokenHelper = authenticationTokenHelper;
      48             :                 }
      49             : 
      50             :                 /// <summary>
      51             :                 /// Execute the provided <paramref name="handler"/> passing it the <paramref name="event"/>,
      52             :                 /// then calls <see cref="ActorRefImplicitSenderExtensions.Tell"/>.
      53             :                 /// </summary>
      54           1 :                 protected virtual void Execute<TEvent>(Action<TEvent> handler, TEvent @event)
      55             :                         where TEvent : IEvent<TAuthenticationToken>
      56             :                 {
      57             :                         try
      58             :                         {
      59             :                                 AuthenticationTokenHelper.SetAuthenticationToken(@event.AuthenticationToken);
      60             :                                 CorrelationIdHelper.SetCorrelationId(@event.CorrelationId);
      61             :                                 handler(@event);
      62             : 
      63             :                                 Sender.Tell(true, Self);
      64             :                         }
      65             :                         catch(Exception exception)
      66             :                         {
      67             :                                 Logger.LogError("Executing an Akka.net request failed.", exception: exception, metaData: new Dictionary<string, object> { { "Type", GetType() }, { "Event", @event} });
      68             :                                 Sender.Tell(false, Self);
      69             :                                 throw;
      70             :                         }
      71             :                 }
      72             :         }
      73             : }