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Fixed #16: No exception when publishing while RabbitMQ is down

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This commit is contained in:
Mark van Renswoude 2017-02-21 22:08:05 +01:00
parent 1fba66d105
commit 80ac032f18
1 changed files with 11 additions and 3 deletions
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14
Tapeti/Connection/TapetiWorker.cs
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@ -13,6 +13,9 @@ namespace Tapeti.Connection
{
public class TapetiWorker
{
private const int ReconnectDelay = 5000;
private const int PublishMaxConnectAttempts = 3;
private readonly IConfig config;
public TapetiConnectionParams ConnectionParams { get; set; }
@ -161,7 +164,7 @@ namespace Tapeti.Connection
() => taskQueue.Value.Add(async () =>
{
var body = messageSerializer.Serialize(context.Message, context.Properties);
(await GetChannel()).BasicPublish(context.Exchange, context.RoutingKey, false,
(await GetChannel(PublishMaxConnectAttempts)).BasicPublish(context.Exchange, context.RoutingKey, false,
context.Properties, body);
}).Unwrap());
// ReSharper restore ImplicitlyCapturedClosure
@ -171,11 +174,12 @@ namespace Tapeti.Connection
/// Only call this from a task in the taskQueue to ensure IModel is only used
/// by a single thread, as is recommended in the RabbitMQ .NET Client documentation.
/// </remarks>
private async Task<IModel> GetChannel()
private async Task<IModel> GetChannel(int? maxAttempts = null)
{
if (channelInstance != null)
return channelInstance;
var attempts = 0;
var connectionFactory = new ConnectionFactory
{
HostName = ConnectionParams.HostName,
@ -201,7 +205,11 @@ namespace Tapeti.Connection
}
catch (BrokerUnreachableException)
{
await Task.Delay(5000);
attempts++;
if (maxAttempts.HasValue && attempts > maxAttempts.Value)
throw;
await Task.Delay(ReconnectDelay);
}
}