/// <summary>
/// Adds new binding to a router
/// </summary>
/// <param name="routerName">Router name of the binding</param>
/// <param name="type">Binding type</param>
/// <param name="name">Binding name</param>
/// <param name="target">Binding target. Queue name, tag name, direct receiver id, name, type, etc.</param>
/// <param name="interaction">Binding interaction</param>
/// <param name="bindingMethod">Binding method is used when multiple receivers available in same binding. It's used for Direct and Tag bindings.</param>
/// <param name="contentType">Overwritten content type if specified</param>
/// <param name="priority">Binding priority</param>
/// <returns></returns>
public async Task <HorseResult> AddBinding(string routerName,
BindingType type,
string name,
string target,
BindingInteraction interaction,
RouteMethod bindingMethod = RouteMethod.Distribute,
ushort?contentType = null,
int priority = 1)
{
HorseMessage message = new HorseMessage();
message.Type = MessageType.Server;
message.ContentType = KnownContentTypes.AddBinding;
message.SetTarget(routerName);
message.WaitResponse = true;
message.SetMessageId(_client.UniqueIdGenerator.Create());
BindingInformation info = new BindingInformation
{
Name = name,
Target = target,
Interaction = interaction,
ContentType = contentType,
Priority = priority,
BindingType = type,
Method = bindingMethod
};
message.Serialize(info, new NewtonsoftContentSerializer());
return(await _client.WaitResponse(message, true));
}
/// <summary>
/// Sends a memory stream message by full name
/// </summary>
private async Task <HorseResult> SendById(string id, ushort contentType, MemoryStream content, bool waitAcknowledge,
IEnumerable <KeyValuePair <string, string> > messageHeaders = null)
{
HorseMessage message = new HorseMessage();
message.SetTarget(id);
message.ContentType = contentType;
message.Content = content;
message.Type = MessageType.DirectMessage;
if (messageHeaders != null)
{
foreach (KeyValuePair <string, string> pair in messageHeaders)
{
message.AddHeader(pair.Key, pair.Value);
}
}
if (waitAcknowledge)
{
return(await _client.SendAndGetAck(message));
}
return(await _client.SendAsync(message));
}
/// <summary>
/// Pushes new message into the queue
/// </summary>
public Task <PushResult> Push(HorseMessage message)
{
message.Type = MessageType.QueueMessage;
message.SetTarget(Name);
return(Push(new QueueMessage(message), null));
}
/// <summary>
/// Clears messages in a queue.
/// Required administration permission.
/// If server has no implementation for administration authorization, request is not allowed.
/// </summary>
public Task <HorseResult> ClearMessages(string queue, bool clearPriorityMessages, bool clearMessages)
{
if (!clearPriorityMessages && !clearMessages)
{
return(Task.FromResult(HorseResult.Failed()));
}
HorseMessage message = new HorseMessage();
message.Type = MessageType.Server;
message.ContentType = KnownContentTypes.ClearMessages;
message.SetTarget(queue);
message.WaitResponse = true;
message.SetMessageId(_client.UniqueIdGenerator.Create());
message.AddHeader(HorseHeaders.QUEUE_NAME, queue);
if (clearPriorityMessages)
{
message.AddHeader(HorseHeaders.PRIORITY_MESSAGES, "yes");
}
if (clearMessages)
{
message.AddHeader(HorseHeaders.MESSAGES, "yes");
}
return(_client.WaitResponse(message, true));
}
/// <summary>
/// Sends a JSON message by full name
/// </summary>
public async Task <HorseResult> SendJsonById <T>(string id, ushort contentType, T model, bool waitAcknowledge,
IEnumerable <KeyValuePair <string, string> > messageHeaders = null)
{
HorseMessage message = new HorseMessage();
message.SetTarget(id);
message.Type = MessageType.DirectMessage;
message.ContentType = contentType;
message.Serialize(model, _client.JsonSerializer);
if (messageHeaders != null)
{
foreach (KeyValuePair <string, string> pair in messageHeaders)
{
message.AddHeader(pair.Key, pair.Value);
}
}
if (waitAcknowledge)
{
return(await _client.SendAndGetAck(message));
}
return(await _client.SendAsync(message));
}
/// <summary>
/// Sends the message to binding receivers
/// </summary>
public override async Task <bool> Send(MqClient sender, HorseMessage message)
{
try
{
HorseQueue queue = await GetQueue(message);
if (queue == null)
{
return(false);
}
string messageId = Interaction == BindingInteraction.None
? Router.Server.MessageIdGenerator.Create()
: message.MessageId;
HorseMessage msg = message.Clone(true, true, messageId);
msg.Type = MessageType.QueueMessage;
msg.SetTarget(Target);
msg.WaitResponse = Interaction == BindingInteraction.Response;
QueueMessage queueMessage = new QueueMessage(msg);
queueMessage.Source = sender;
PushResult result = await queue.Push(queueMessage, sender);
return(result == PushResult.Success);
}
catch (Exception e)
{
Router.Server.SendError("BINDING_SEND", e, $"Type:AutoQueue, Binding:{Name}");
return(false);
}
}
/// <summary>
/// Sends the message to binding receivers
/// </summary>
public override async Task <bool> Send(MqClient sender, HorseMessage message)
{
try
{
MqClient[] clients = GetClients();
if (clients.Length == 0)
{
return(false);
}
message.Type = MessageType.DirectMessage;
message.SetTarget(Target);
if (ContentType.HasValue)
{
message.ContentType = ContentType.Value;
}
message.WaitResponse = Interaction == BindingInteraction.Response;
switch (RouteMethod)
{
case RouteMethod.OnlyFirst:
var first = clients.FirstOrDefault();
if (first == null)
{
return(false);
}
return(await first.SendAsync(message));
case RouteMethod.Distribute:
bool atLeastOneSent = false;
foreach (MqClient client in clients)
{
bool sent = await client.SendAsync(message);
if (sent && !atLeastOneSent)
{
atLeastOneSent = true;
}
}
return(atLeastOneSent);
case RouteMethod.RoundRobin:
return(await SendRoundRobin(message));
default:
return(false);
}
}
catch (Exception e)
{
Router.Server.SendError("BINDING_SEND", e, $"Type:Direct, Binding:{Name}");
return(false);
}
}
/// <summary>
/// Gets all bindings of a router
/// </summary>
public async Task <HorseModelResult <List <BindingInformation> > > GetBindings(string routerName)
{
HorseMessage message = new HorseMessage();
message.Type = MessageType.Server;
message.ContentType = KnownContentTypes.ListBindings;
message.SetTarget(routerName);
return(await _client.SendAndGetJson <List <BindingInformation> >(message));
}
/// <summary>
/// Creates new status code message
/// </summary>
public static HorseMessage StatusCodeMessage(ushort contentType, string target = null)
{
HorseMessage message = new HorseMessage();
message.Type = MessageType.Server;
message.ContentType = contentType;
message.SetTarget(target);
return(message);
}
/// <summary>
/// Gets all consumers of queue
/// </summary>
public Task <HorseModelResult <List <ClientInformation> > > GetConnectedClients(string typeFilter = null)
{
HorseMessage message = new HorseMessage();
message.Type = MessageType.Server;
message.ContentType = KnownContentTypes.ClientList;
message.SetTarget(typeFilter);
return(_client.SendAndGetJson <List <ClientInformation> >(message));
}
/// <summary>
/// Creates new Pull Request response message with no content
/// </summary>
internal static HorseMessage CreateNoContentPullResponse(HorseMessage request, string reason)
{
HorseMessage msg = new HorseMessage(MessageType.QueueMessage);
msg.SetMessageId(request.MessageId);
msg.SetTarget(request.Target);
msg.ContentType = request.ContentType;
msg.AddHeader(HorseHeaders.REQUEST_ID, request.MessageId);
msg.AddHeader(HorseHeaders.NO_CONTENT, reason);
return(msg);
}
/// <summary>
/// Removes a router.
/// Returns success result if router doesn't exists.
/// </summary>
public async Task <HorseResult> Remove(string name)
{
HorseMessage message = new HorseMessage();
message.Type = MessageType.Server;
message.ContentType = KnownContentTypes.RemoveRouter;
message.SetTarget(name);
message.WaitResponse = true;
message.SetMessageId(_client.UniqueIdGenerator.Create());
return(await _client.WaitResponse(message, true));
}
/// <summary>
/// Creates new router.
/// Returns success result if router already exists.
/// </summary>
public async Task <HorseResult> Create(string name, RouteMethod method)
{
HorseMessage message = new HorseMessage();
message.Type = MessageType.Server;
message.ContentType = KnownContentTypes.CreateRouter;
message.SetTarget(name);
message.WaitResponse = true;
message.AddHeader(HorseHeaders.ROUTE_METHOD, Convert.ToInt32(method).ToString());
message.SetMessageId(_client.UniqueIdGenerator.Create());
return(await _client.WaitResponse(message, true));
}
/// <summary>
/// Remove a binding from a router
/// </summary>
public async Task <HorseResult> RemoveBinding(string routerName, string bindingName)
{
HorseMessage message = new HorseMessage();
message.Type = MessageType.Server;
message.ContentType = KnownContentTypes.RemoveBinding;
message.SetTarget(routerName);
message.WaitResponse = true;
message.SetMessageId(_client.UniqueIdGenerator.Create());
message.AddHeader(HorseHeaders.BINDING_NAME, bindingName);
return(await _client.WaitResponse(message, true));
}
/// <summary>
/// Gets all consumers of queue
/// </summary>
public async Task <HorseModelResult <List <ClientInformation> > > GetConsumers(string queue)
{
HorseMessage message = new HorseMessage();
message.Type = MessageType.Server;
message.SetTarget(queue);
message.ContentType = KnownContentTypes.QueueConsumers;
message.SetMessageId(_client.UniqueIdGenerator.Create());
message.AddHeader(HorseHeaders.QUEUE_NAME, queue);
return(await _client.SendAndGetJson <List <ClientInformation> >(message));
}
/// <summary>
/// Creates new response message, with no content, of the message.
/// </summary>
public static HorseMessage StatusResponse(HorseMessage request, ushort status)
{
HorseMessage response = new HorseMessage();
response.Type = MessageType.Response;
response.SetMessageId(request.MessageId);
response.ContentType = status;
response.SetTarget(request.Type == MessageType.QueueMessage
? request.Target
: request.Source);
return(response);
}
/// <summary>
/// Unsubscribes from a queue
/// </summary>
public async Task <HorseResult> Unsubscribe(string queue, bool verifyResponse)
{
HorseMessage message = new HorseMessage();
message.Type = MessageType.Server;
message.ContentType = KnownContentTypes.Unsubscribe;
message.SetTarget(queue);
message.WaitResponse = verifyResponse;
if (verifyResponse)
{
message.SetMessageId(_client.UniqueIdGenerator.Create());
}
return(await _client.WaitResponse(message, verifyResponse));
}
/// <summary>
/// Updates queue options
/// </summary>
public async Task <HorseResult> SetOptions(string queue, Action <QueueOptions> optionsAction)
{
HorseMessage message = new HorseMessage();
message.Type = MessageType.Server;
message.ContentType = KnownContentTypes.UpdateQueue;
message.SetTarget(queue);
message.WaitResponse = true;
message.SetMessageId(_client.UniqueIdGenerator.Create());
message.AddHeader(HorseHeaders.QUEUE_NAME, queue);
QueueOptions options = new QueueOptions();
optionsAction(options);
message.Content = new MemoryStream();
await JsonSerializer.SerializeAsync(message.Content, options);
return(await _client.WaitResponse(message, true));
}
/// <summary>
/// Creates new queue in server
/// </summary>
public async Task <HorseResult> Create(string queue,
Action <QueueOptions> optionsAction,
string deliveryHandlerHeader = null,
IEnumerable <KeyValuePair <string, string> > additionalHeaders = null)
{
HorseMessage message = new HorseMessage();
message.Type = MessageType.Server;
message.ContentType = KnownContentTypes.CreateQueue;
message.SetTarget(queue);
message.WaitResponse = true;
message.AddHeader(HorseHeaders.QUEUE_NAME, queue);
if (!string.IsNullOrEmpty(deliveryHandlerHeader))
{
message.AddHeader(HorseHeaders.DELIVERY_HANDLER, deliveryHandlerHeader);
}
if (additionalHeaders != null)
{
foreach (KeyValuePair <string, string> pair in additionalHeaders)
{
message.AddHeader(pair.Key, pair.Value);
}
}
if (optionsAction != null)
{
QueueOptions options = new QueueOptions();
optionsAction(options);
message.Content = new MemoryStream();
await JsonSerializer.SerializeAsync(message.Content, options);
}
message.SetMessageId(_client.UniqueIdGenerator.Create());
return(await _client.WaitResponse(message, true));
}
/// <summary>
/// Subscribes to a queue
/// </summary>
public async Task <HorseResult> Subscribe(string queue, bool verifyResponse, IEnumerable <KeyValuePair <string, string> > headers = null)
{
HorseMessage message = new HorseMessage();
message.Type = MessageType.Server;
message.ContentType = KnownContentTypes.Subscribe;
message.SetTarget(queue);
message.WaitResponse = verifyResponse;
if (headers != null)
{
foreach (KeyValuePair <string, string> header in headers)
{
message.AddHeader(header.Key, header.Value);
}
}
if (verifyResponse)
{
message.SetMessageId(_client.UniqueIdGenerator.Create());
}
return(await _client.WaitResponse(message, verifyResponse));
}
