private void BuildConfluentClient()
{
Boolean usernameSpecified = false;
Boolean passwordSpecified = false;
if (!string.IsNullOrEmpty(_authUsername) && _authUsername.ToLowerInvariant() != "[username]")
{
this.textBoxUsername.Text = _authUsername;
usernameSpecified = true;
}
if (!string.IsNullOrEmpty(_authPassword) && _authPassword.ToLowerInvariant() != "[password]")
{
this.textBoxPassword.Text = _authPassword;
passwordSpecified = true;
}
if (usernameSpecified && passwordSpecified)
{
_confluentClient = new ConfluentClient(new ConfluentClientSettings(_baseUrl, _requestTimeout,
new BasicConfluentClientAuthentication(_authUsername, _authPassword)));
}
else
{
_confluentClient = new ConfluentClient(new ConfluentClientSettings(_baseUrl, _requestTimeout, null));
}
}
/// <summary>
/// This assumes that a topic has only one type. Jay Kreps recommends separating different event types
/// into different topics at http://www.confluent.io/blog/stream-data-platform-2/. Besides, heterogeneous-event
/// topics aren't directly supported by the driver.
/// </summary>
/// <returns></returns>
private static async Task <ConfluentResponse <List <AvroMessage <TK, TV> > > > ConsumeOnceAsync(
IConfluentClient confluentClient,
ConsumerInstance consumerInstance,
string topic)
{
return(await confluentClient.ConsumeAsAvroAsync <TK, TV>(consumerInstance, topic));
}
public static ConsumerInstance ConsumerInstance(IConfluentClient client, string instanceId, string consumerGroupName)
{
var consumerInstanceTask = Setup.CreateConsumerInstance(client, instanceId, consumerGroupName).Result;
if (!consumerInstanceTask.IsSuccess())
{
throw new ApplicationException("Error " + consumerInstanceTask.Error.ErrorCode + ": " +
consumerInstanceTask.Error.Message);
}
var consumerInstance = consumerInstanceTask.Payload;
return consumerInstance;
}
public static async Task<ConfluentResponse<ConsumerInstance>> CreateConsumerInstance(IConfluentClient client,
string instanceId, string consumerGroupName)
{
var request = new CreateConsumerRequest
{
AutoCommitEnabled = true,
InstanceId = instanceId,
MessageFormat = MessageFormat.Avro
};
return await client.CreateConsumerAsync(consumerGroupName, request);
}
public static ConsumerInstance ConsumerInstance(IConfluentClient client, string instanceId, string consumerGroupName)
{
var consumerInstanceTask = Setup.CreateConsumerInstance(client, instanceId, consumerGroupName).Result;
if (!consumerInstanceTask.IsSuccess())
{
throw new ApplicationException("Error " + consumerInstanceTask.Error.ErrorCode + ": " +
consumerInstanceTask.Error.Message);
}
var consumerInstance = consumerInstanceTask.Payload;
return(consumerInstance);
}
public TestApp()
{
InitializeComponent();
_confluentClient = new ConfluentClient(new ConfluentClientSettings(_baseUrl, _requestTimeout));
}
public static async Task <ConfluentResponse <ConsumerInstance> > CreateConsumerInstance(IConfluentClient client,
string instanceId, string consumerGroupName)
{
var request = new CreateConsumerRequest
{
AutoCommitEnabled = true,
InstanceId = instanceId,
MessageFormat = MessageFormat.Avro
};
return(await client.CreateConsumerAsync(consumerGroupName, request));
}
//private readonly OffsetCommitter _committer;
public RxConsumer(IConfluentClient client, ConsumerInstance consumerInstance, String topic)
{
_client = client;
_consumerInstance = consumerInstance;
_topic = topic;
}
