public void Unsubscribe <T>(IMessageSubscriber <T> subscriber) where T : IMessage
{
if (_subscribers.Contains(subscriber))
{
_subscribers.Remove(subscriber);
}
}
public CommandConsumer(IMessageSubscriber subscriber, IEnumerable <ICommandHandler> commandHandlers)
{
this.subscriber = subscriber;
this.commandHandlers = commandHandlers;
subscriber.MessageReceived += async(sender, e) =>
{
if (this.commandHandlers != null)
{
foreach (var handler in this.commandHandlers)
{
var handlerType = handler.GetType();
var messageType = e.Message.GetType();
var methodInfoQuery = from method in handlerType.GetMethods(BindingFlags.Public | BindingFlags.Instance)
let parameters = method.GetParameters()
where method.Name == "HandleAsync" &&
method.ReturnType == typeof(Task) &&
parameters.Length == 1 &&
parameters[0].ParameterType == messageType
select method;
var methodInfo = methodInfoQuery.FirstOrDefault();
if (methodInfo != null)
{
await(Task) methodInfo.Invoke(handler, new[] { e.Message });
}
}
}
};
}
internal SubscriberInfo(IMessageSubscriber Subscriber)
{
SubscriberType = Subscriber.GetType();
Instance = Subscriber;
Roles = new RoleSet(SubscriberType);
_ObservedSet = new UniqueSet <IMessageSubscriber>();
}
/// <summary>
/// Removes the observed-object from the observer if and only if
/// the given object was the observed object.
/// </summary>
/// <param name="ClearIfObserved">The object to cease observing</param>
/// <returns>True if the given object was being observed by THIS object.</returns>
public bool ClearObservedObject(IMessageSubscriber ClearIfObserved)
{
return(_ObservedSet.Has(ClearIfObserved, () =>
{
_ObservedSet.Remove(ClearIfObserved);
}));
}
/// <summary>
/// Submits a message to its channel's subscribers.
/// </summary>
/// <param name="sender">The submitter node.</param>
/// <param name="message">The message to submit.</param>
/// <returns>True if the operation succeeded.</returns>
public bool SubmitMessage(IMessageSubscriber sender, IrisMessage message)
{
if (message.PublisherId == null || !_nodes.ContainsKey(sender))
{
return(false);
}
IrisConcurrentHashSet <Guid> _deliveryNodes = new IrisConcurrentHashSet <Guid>();
Action <IMessageSubscriber> sendMessageToOthersAction = (n) =>
{
if (n != sender && !_deliveryNodes.Contains(n.Id))
{
_deliveryNodes.Add(n.Id);
n.ReceiveMessage(message);
}
};
if (message.TargetChannel == null)
{
// Broadcast
_nodes.Keys.ForEach(sendMessageToOthersAction);
return(true);
}
else
{
var irisNodes = _subsDictionary.GetSubscriptions(message.TargetChannel, message.PropagateThroughHierarchy);
if (irisNodes != null)
{
irisNodes.ForEach(sendMessageToOthersAction);
}
return(irisNodes != null);
}
}
private static void LoadHalJson <T>(
out IMessagePublisher publisher,
out IMessageSubscriber <T> subscriber) where T : new()
{
var connectionString = "server=.;database=scratchpad;trusted_connection=true;";
var pubStoreSproc = "usp_StoreMessage";
var pubReceiveSproc = "usp_GetPageOfMessages";
var subGetSproc = "usp_GetLastMessageId";
var subUpdateSproc = "usp_UpdateLastMessageId";
//WriteColoredText("Connection string: ");
//var connectionString = Console.ReadLine();
//WriteColoredText("Publish store sproc: ");
//var pubStoreSproc = Console.ReadLine();
//WriteColoredText("Publish receive sproc: ");
//var pubReceiveSproc = Console.ReadLine();
//WriteColoredText("Receive get sproc: ");
//var subGetSproc = Console.ReadLine();
//WriteColoredText("Receive update sproc: ");
//var subUpdateSproc = Console.ReadLine();
publisher = new SyndicationMessagePublisher(new SqlServerMessageRepository(connectionString, pubStoreSproc, pubReceiveSproc, 10));
var feedPositionRepo = new SqlServerFeedPositionRepository(connectionString, subGetSproc, subUpdateSproc);
subscriber = new SyndicationPollingMessageReceiver <T>(
new HalJsonMessageClient(feedPositionRepo, new HttpClientWrapper("http://localhost:16972/"), new MessageIdentifierFactory()),
feedPositionRepo);
}
/// <summary>
/// Unregisters a node. This also deletes every subscription of that node.
/// </summary>
/// <param name="node">The node to unregister.</param>
/// <returns>True if the operation succeeded.</returns>
public bool Unregister(IMessageSubscriber node)
{
if (!_nodes.ContainsKey(node))
{
return(false);
}
List <string> channels;
bool success = _nodes.TryGetValue(node, out channels);
// Unregister the node and remove the subscriptions
// with removeChannelFromRegisteredNode: false
// to avoid concurrent modifications over the channels list
foreach (var channel in channels)
{
if (!(success = Unsubscribe(node, channel, removeChannelFromRegisteredNode: false)))
{
break;
}
}
if (success)
{
success = _nodes.TryRemove(node, out channels);
}
return(success);
}
/// <summary>
/// Method used to avoid having concurrent modifications over the subscriptions when the Unregister is invoked.
/// </summary>
/// <param name="node">The node to unsubscribe.</param>
/// <param name="channel">The channel from which unsubscribe.</param>
/// <param name="removeChannelFromRegisteredNode">If true, removes the channel from the main nodes list.</param>
/// <returns>True if the operation succeeded.</returns>
private bool Unsubscribe(IMessageSubscriber node, string channel, bool removeChannelFromRegisteredNode)
{
if (!_nodes.ContainsKey(node))
{
return(false);
}
bool success = false;
if (channel != null)
{
success = _subsDictionary.Remove(node, channel);
}
if (removeChannelFromRegisteredNode && success)
{
try
{
_nodes[node].Remove(channel);
}
catch (Exception ex) when(!(ex is KeyNotFoundException))
{
success = false;
}
}
return(success);
}
/// <summary>
/// Subscribes a node to a channel in order to receive target messages.
/// </summary>
/// <param name="node">The node to subscribe.</param>
/// <param name="channel">The channel to which subscribe.</param>
/// <returns>True if the operation succeeded.</returns>
public bool Subscribe(IMessageSubscriber node, string channel)
{
if (!_nodes.ContainsKey(node))
{
return(false);
}
bool success = false;
if (channel != null)
{
success = _subsDictionary.Add(node, channel);
}
try
{
if (success)
{
_nodes[node].Add(channel);
}
}
catch (Exception ex) when(!(ex is KeyNotFoundException))
{
_subsDictionary.Remove(node, channel);
success = false;
}
return(success);
}
public CreateOrganizationAdminProfileRollbackSubscriber(
ILogger logger,
IMessageSubscriber messageSubscriber,
IServiceProvider serviceProvider,
IMessagePublisher publisher) : base(logger, messageSubscriber, serviceProvider, publisher)
{
}
public void Subscribe <T>(IMessageSubscriber <T> subscriber) where T : IMessage
{
if (!_subscribers.Contains(subscriber))
{
_subscribers.Add(subscriber);
}
}
public UpdatePhysicianProfileRollbackSubscriber(
ILogger logger,
IMessageSubscriber messageSubscriber,
IServiceProvider serviceProvider,
IMessagePublisher publisher) : base(logger, messageSubscriber, serviceProvider, publisher)
{
}
public CreateSuperAdminRollbackSubscriber(
ILogger logger,
IMessageSubscriber messageSubscriber,
IServiceProvider serviceProvider,
IMessagePublisher publisher) : base(logger, messageSubscriber, serviceProvider, publisher)
{
}
public WalletController(
IBlockchainController blockchainController,
ICertificateService certificateService,
IMessagePublisher messagePublisher,
IMessageSubscriber messageSubscriber,
INetworkController networkController,
INotificationService notificationService,
ISettingsManager settingsManager)
{
this.blockchainController = blockchainController;
this.certificateService = certificateService;
this.messagePublisher = messagePublisher;
this.messageSubscriber = messageSubscriber;
this.networkController = networkController;
this.notificationService = notificationService;
this.blockchainDataDirectoryPath = settingsManager.BlockchainDataDirectoryPath;
this.localNodePort = settingsManager.LocalNodePort;
this.localWSPort = settingsManager.LocalWSPort;
this.certificateCachePath = settingsManager.CertificateCachePath;
this.certificateQueryResultCache = new Dictionary <ECPoint, CertificateQueryResult>();
}
public MessageBusHub(IMessageSubscriber subscriber) {
subscriber.Subscribe<EntityChanged>(OnEntityChanged);
subscriber.Subscribe<EventOccurrence>(OnEventOccurrence);
subscriber.Subscribe<PlanChanged>(OnPlanChanged);
subscriber.Subscribe<PlanOverage>(OnPlanOverage);
subscriber.Subscribe<StackUpdated>(OnStackUpdated);
}
/// <inheritdoc/>
public void Subscribe(IMessageSubscriber <TMessageType> receiver, TMessageType type)
{
lock (subscribers)
{
subscribers[type].Add(receiver);
}
}
public static void SubscribeEvent <TEvent>(this IMessageSubscriber subscriber)
where TEvent : class, IEvent
=> subscriber.Subscribe <TEvent>(async(sp, @event) =>
{
var dispatcher = sp.GetService <IEventDispatcher>();
await dispatcher.DispatchAsync(@event);
});
public void Register(IMessageSubscriber Subscriber)
{
SubscriberInfo subInfo = GetInfoFor(Subscriber);
if (subInfo == null)
{
subInfo = new SubscriberInfo(Subscriber);
}
else
{
_Logger.LogAt(LogLevel.LL_DebugFramework,
"Already had a subscriber for same instance: " + subInfo.ToString()
);
return;
}
_Logger.LogAt(LogLevel.LL_Info, "Creating Group: " + subInfo.SubscriberType.Name);
_MessageHandlers.CreateGroup(subInfo);
_Logger.LogAt(LogLevel.LL_DebugFramework, "START --Adding Handlers--");
foreach (HandlerInfo info in FindHandlers(subInfo))
{
_Logger.LogAt(LogLevel.LL_DebugFramework, "Handler: " + info.ToString()
);
_MessageHandlers.ToGroup(
subInfo,
(Groups <SubscriberInfo, HandlerInfo> .Members handlers) => { handlers.Add(info); }
);
}
_Logger.LogAt(LogLevel.LL_DebugFramework, "END --Adding Handlers--");
}
/// <summary>
/// Initializes a new instance of L1L2RedisCache.
/// </summary>
public L1L2RedisCache(
IMemoryCache l1Cache,
IOptions <L1L2RedisCacheOptions> l1l2RedisCacheOptionsAccessor,
Func <IDistributedCache> l2CacheAccessor,
IMessagePublisher messagePublisher,
IMessageSubscriber messageSubscriber)
{
L1Cache = l1Cache;
L1L2RedisCacheOptions = l1l2RedisCacheOptionsAccessor.Value;
L2Cache = l2CacheAccessor();
MessagePublisher = messagePublisher;
MessageSubscriber = messageSubscriber;
Database = new Lazy <IDatabase>(() =>
L1L2RedisCacheOptions
.ConnectionMultiplexerFactory()
.GetAwaiter()
.GetResult()
.GetDatabase(
L1L2RedisCacheOptions
.ConfigurationOptions?
.DefaultDatabase ?? -1));
MessageSubscriber.Subscribe();
}
public static Task SubscribeAsync <TMessage>(
this IMessageSubscriber subscriber,
Func <TMessage, CancellationToken, Task> handlerFunc,
CancellationToken token = default)
{
return(subscriber.SubscribeAsync(new AnnonymousMessageHandler <TMessage>(handlerFunc), token));
}
public static Task SubscribeAsync(this IMessageSubscriber subscriber, Action <IMessage> handler, CancellationToken cancellationToken = default)
{
return(subscriber.SubscribeAsync((msg, token) => {
handler(msg);
return Task.CompletedTask;
}, cancellationToken));
}
public MessageBusHub(IMessageSubscriber subscriber)
{
subscriber.Subscribe <EntityChanged>(OnEntityChanged);
subscriber.Subscribe <PlanChanged>(OnPlanChanged);
subscriber.Subscribe <PlanOverage>(OnPlanOverage);
subscriber.Subscribe <UserMembershipChanged>(OnUserMembershipChanged);
}
public CommandsObserver(
IMessageSubscriber commandsQueue,
DocumentsJoinerStatusObserverWorker statusObserver)
{
this.commandsQueue = commandsQueue ?? throw new ArgumentNullException(nameof(commandsQueue));
this.statusObserver = statusObserver ?? throw new ArgumentNullException(nameof(statusObserver));
}
public BuildsController(IDocumentStore store, IBuildRepository buildRepository, ProcedureExecutor procedureExecutor, IMessageSubscriber messageSubscriber)
{
this.store = store;
this.buildRepository = buildRepository;
this.procedureExecutor = procedureExecutor;
this.messageSubscriber = messageSubscriber;
}
private void AssertValid(IMessageSubscriber _Instance, Type _Origin)
{
if (_Instance != null && (_Instance.GetType() != _Origin && !_Instance.GetType().IsSubclassOf(_Origin)))
{
throw new ArgumentException("Sending instance expected to be of type " + _Origin.Name);
}
}
public MessageBusBroker(IConnectionManager connectionManager, IConnectionMapping connectionMapping, IMessageSubscriber subscriber, ILogger <MessageBusBroker> logger)
{
_connectionManager = connectionManager;
_connectionMapping = connectionMapping;
_subscriber = subscriber;
_logger = logger;
}
internal SubscriberInfo(IMessageSubscriber Subscriber)
{
SubscriberType = Subscriber.GetType();
Instance = Subscriber;
Roles = new RoleSet(SubscriberType);
_ObservedSet = new UniqueSet<IMessageSubscriber>();
}
public CommandConsumer(
IMessageSubscriber subscriber,
IEnumerable <ICommandHandler> commandHandlers)
{
Subscriber = subscriber;
CommandHandlers = commandHandlers;
subscriber.MessageReceived += (sender, e) =>
{
if (CommandHandlers == null)
{
return;
}
foreach (var handler in CommandHandlers)
{
var handlerType = handler.GetType();
var messageType = e.Message.GetType();
var methodInfoQuery =
from method in handlerType.GetMethods(BindingFlags.Public | BindingFlags.Instance)
let parameters = method.GetParameters()
where method.Name == "Handle" &&
method.ReturnType == typeof(IObservable <Unit>) &&
parameters.Length == 1 &&
parameters[0].ParameterType == messageType
select method;
var methodInfo = methodInfoQuery.FirstOrDefault();
methodInfo?.Invoke(handler, new[] { e.Message });
}
};
}
/// <inheritdoc/>
public void Unsubscribe(IMessageSubscriber <TMessageType> receiver, TMessageType type)
{
lock (subscribers)
{
subscribers[type].Remove(receiver);
}
}
public PollChannel(IMessageSubscriber messageSubscriber, string channel, string @group)
{
this.messageSubscriber = messageSubscriber;
messageSubscriber.AddListener(this);
this.channel = channel;
this.group = group;
}
/// <inheritdoc/>
public void Unsubscribe(IMessageSubscriber <TMessageType> receiver)
{
lock (subscribers)
{
subscribers.RemoveFromAll(receiver);
}
}
public UpdateOrganizationUserRollbackSubscriber(
ILogger logger,
IMessageSubscriber messageSubscriber,
IServiceProvider serviceProvider,
IMessagePublisher publisher) : base(logger, messageSubscriber, serviceProvider, publisher)
{
}
public virtual void UnSubscribe <T>(IMessageSubscriber <T> subscriber) where T : IMessage
{
if (_messageSubscribers.TryGetValue(typeof(T), out IList <IMessageSubscriber <IMessage> > list))
{
list.Remove((IMessageSubscriber <IMessage>)subscriber);
}
}
public static void Subscribe <T>(this IMessageSubscriber subscriber, Action <T> handler, CancellationToken cancellationToken = default(CancellationToken)) where T : class
{
subscriber.Subscribe <T>((msg, token) => {
handler(msg);
return(Task.CompletedTask);
}, cancellationToken);
}
public void Verify(string revision, IMessageSubscriber subscriber)
{
this.revision = revision;
var revisionHashLength = "280bb4850c149a0a33412093cba5d22b4d10bff4".Length;
if (revision.Length == revisionHashLength && Regex.Match(revision, "[0-9a-fA-F]*").Success)
{
subscriber.Published(string.Format("Revision number is a valid Git hash."));
subscriber.Ask("Pull this revision? (Y/N)", this);
}
}
private Message(Type _Origin, Type _TargetRole, object _EventType, IMessageSubscriber _Instance, object _Payload)
{
Origin = _Origin;
SenderInstance = _Instance;
EventType = _EventType;
TargetRole = _TargetRole;
Payload = _Payload;
TargetInstance = null;
AssertValid(_TargetRole);
AssertValid(_Instance, _Origin);
}
public Message(IMessageSubscriber _OriginInstance, Type _TargetRole, object _EventType, object _Payload)
: this(_OriginInstance.GetType(), _TargetRole, _EventType, _OriginInstance, _Payload)
{
}
/// <summary>
/// Removes the observed-object from the observer if and only if
/// the given object was the observed object.
/// </summary>
/// <param name="ClearIfObserved">The object to cease observing</param>
/// <returns>True if the given object was being observed by THIS object.</returns>
public bool ClearObservedObject(IMessageSubscriber ClearIfObserved)
{
return _ObservedSet.Has( ClearIfObserved, () =>
{
_ObservedSet.Remove( ClearIfObserved );
});
}
public MessageBusBroker(IConnectionManager connectionManager, IConnectionMapping connectionMapping, IMessageSubscriber subscriber) {
_connectionManager = connectionManager;
_connectionMapping = connectionMapping;
_subscriber = subscriber;
}
public SampleService(ILogger logger, IMessageSubscriber sampleMessageSubscriber)
{
_logger = logger;
_sampleMessageSubscriber = sampleMessageSubscriber;
}
public DllDebugger(IMessageSubscriber subscriber, ISourceRepository sourceRepository)
{
this.subscriber = subscriber;
this.sourceRepository = sourceRepository;
NumberOfModulesLoaded = 0;
}
private void AssertValid(IMessageSubscriber _Instance, Type _Origin)
{
if ( _Instance != null && (_Instance.GetType() != _Origin && ! _Instance.GetType().IsSubclassOf(_Origin) )) {
throw new ArgumentException("Sending instance expected to be of type " + _Origin.Name);
}
}
public MessagePublisher(IMessageSubscriber messageSubscriber)
{
_messageSubscriber = messageSubscriber;
}
/// <summary>
/// Identifies sender both as type and as a specific instance. Useful for an observed type
/// like a model.
/// </summary>
/// <param name="_Origin">Sender type, for grouping.</param>
/// <param name="_TargetRole">Role that member instances must implement to receive message.</param>
/// <param name="_EventType">The event type or function number.</param>
/// <param name="_Instance">The source instance (of type _Origin)</param>
public Message(Type _Origin, Type _TargetRole, object _EventType, IMessageSubscriber _Instance)
: this(_Origin, _TargetRole, _EventType, _Instance, null)
{
}
public void SetObservedObject(IMessageSubscriber ObservedObject)
{
_ObservedSet.Add(ObservedObject);
}
public MessageBusBroker(IConnectionManager connectionManager, ConnectionMapping userIdConnections, IMessageSubscriber subscriber) {
_connectionManager = connectionManager;
_userIdConnections = userIdConnections;
_subscriber = subscriber;
}
/// <summary>
/// Where the destination's instance is known, this can be used to short circuit the
/// message send addressing scheme.
/// It allows a call to go down a hierarchy: e.g. Controller -> Renderer -> Palette
/// It allows a response to a received message.
/// </summary>
/// <param name="Target">The instance to exclusively receive this message.</param>
public void SetTargetInstance(IMessageSubscriber Target)
{
TargetInstance = Target;
}
public void AnsweredWith(string response, IMessageSubscriber subscriber)
{
if (responseParser.Yes(response))
subscriber.Published(string.Format("Pulling source corresponding to {0}", revision));
else subscriber.Published(string.Format("Skipping revision {0}", revision));
}
public static void SendVia(Message msg, MessageBus MsgBus, IMessageSubscriber Caller)
{
msg.ActualSender = Caller;
MsgBus.Send(msg);
}
