public Task StartAsync(CancellationToken cancellationToken)
{
var builder = this.CreateConsumerBuilder(GetConsumerConfiguration());
builder.SetErrorHandler((_, e) =>
{
logger.LogError(e.Reason);
})
.SetPartitionsAssignedHandler((_, e) =>
{
logger.LogInformation($"Assigned partitions: [{string.Join(", ", e)}]");
})
.SetPartitionsRevokedHandler((_, e) =>
{
logger.LogInformation($"Revoked partitions: [{string.Join(", ", e)}]");
});
if (valueDeserializer != null)
{
if (valueDeserializer is IAsyncDeserializer <TValue> asyncValueDeserializer)
{
builder.SetValueDeserializer(asyncValueDeserializer);
}
else if (valueDeserializer is IDeserializer <TValue> syncValueDeserializer)
{
builder.SetValueDeserializer(syncValueDeserializer);
}
else
{
throw new InvalidOperationException($"Value deserializer must implement either IAsyncDeserializer or IDeserializer. Type {valueDeserializer.GetType().Name} does not");
}
}
this.consumer = builder.Build();
var commitStrategy = new AsyncCommitStrategy <TKey, TValue>(consumer, this.logger);
functionExecutor = singleDispatch ?
(FunctionExecutorBase <TKey, TValue>) new SingleItemFunctionExecutor <TKey, TValue>(executor, consumer, this.options.ExecutorChannelCapacity, this.options.ChannelFullRetryIntervalInMs, commitStrategy, logger) :
new MultipleItemFunctionExecutor <TKey, TValue>(executor, consumer, this.options.ExecutorChannelCapacity, this.options.ChannelFullRetryIntervalInMs, commitStrategy, logger);
consumer.Subscribe(this.listenerConfiguration.Topic);
// Using a thread as opposed to a task since this will be long running
// https://github.com/davidfowl/AspNetCoreDiagnosticScenarios/blob/master/AsyncGuidance.md#avoid-using-taskrun-for-long-running-work-that-blocks-the-thread
var thread = new Thread(ProcessSubscription)
{
IsBackground = true,
};
thread.Start(cancellationTokenSource.Token);
return(Task.CompletedTask);
}
public Task StartAsync(CancellationToken cancellationToken)
{
AzureFunctionsFileHelper.InitializeLibrdKafka(this.logger);
var builder = this.CreateConsumerBuilder(GetConsumerConfiguration());
builder.SetErrorHandler((_, e) =>
{
logger.LogError(e.Reason);
})
.SetPartitionsAssignedHandler((_, e) =>
{
logger.LogInformation($"Assigned partitions: [{string.Join(", ", e)}]");
})
.SetPartitionsRevokedHandler((_, e) =>
{
logger.LogInformation($"Revoked partitions: [{string.Join(", ", e)}]");
});
if (ValueDeserializer != null)
{
builder.SetValueDeserializer(ValueDeserializer);
}
this.consumer = builder.Build();
var commitStrategy = new AsyncCommitStrategy <TKey, TValue>(consumer, this.logger);
functionExecutor = singleDispatch ?
(FunctionExecutorBase <TKey, TValue>) new SingleItemFunctionExecutor <TKey, TValue>(executor, consumer, this.options.ExecutorChannelCapacity, this.options.ChannelFullRetryIntervalInMs, commitStrategy, logger) :
new MultipleItemFunctionExecutor <TKey, TValue>(executor, consumer, this.options.ExecutorChannelCapacity, this.options.ChannelFullRetryIntervalInMs, commitStrategy, logger);
consumer.Subscribe(this.listenerConfiguration.Topic);
// Using a thread as opposed to a task since this will be long running
var thread = new Thread(ProcessSubscription)
{
IsBackground = true,
};
thread.Start(cancellationTokenSource.Token);
return(Task.CompletedTask);
}
public Task StartAsync(CancellationToken cancellationToken)
{
var localConsumer = this.consumer.Value;
var commitStrategy = new AsyncCommitStrategy <TKey, TValue>(localConsumer, this.logger);
this.functionExecutor = singleDispatch ?
(FunctionExecutorBase <TKey, TValue>) new SingleItemFunctionExecutor <TKey, TValue>(executor, localConsumer, this.options.ExecutorChannelCapacity, this.options.ChannelFullRetryIntervalInMs, commitStrategy, logger) :
new MultipleItemFunctionExecutor <TKey, TValue>(executor, localConsumer, this.options.ExecutorChannelCapacity, this.options.ChannelFullRetryIntervalInMs, commitStrategy, logger);
localConsumer.Subscribe(this.listenerConfiguration.Topic);
// Using a thread as opposed to a task since this will be long running
var thread = new Thread(ProcessSubscription)
{
IsBackground = true,
};
thread.Start(cancellationTokenSource.Token);
return(Task.CompletedTask);
}