/// <summary>
/// Ctor
/// </summary>
/// <param name="layout">LAyout to create parameters from</param>
internal KafkaLayoutParameters(KafkaLogstashLayout layout)
{
Application = EnvironmentResolver.Resolve(layout.Application);
CustomTags = EnvironmentResolver.Resolve(layout.CustomTags);
IncludeProperties = layout.IncludeProperties;
MessageType = Type.GetType(EnvironmentResolver.Resolve(layout.MessageType));
SendNullValues = layout.SendNullValues;
if (MessageType == null)
{
throw new ArgumentException($"Cannot create any type from {layout.MessageType}");
}
if (!typeof(IKafkaMessage).IsAssignableFrom(MessageType))
{
throw new ArgumentException(
$"Type [{MessageType.FullName}] does not inherit from [{typeof(IKafkaMessage).FullName}]");
}
}
/// <summary>
/// Validates the input, resolves all string inputs through the <see cref="EnvironmentResolver" /> and fills the
/// <see cref="Params" /> and <see cref="ParsedBootStrapServers" /> collections.
/// </summary>
public void Validate()
{
if (BootstrapServers == null || !BootstrapServers.Any())
{
throw new LogException($"No {nameof(BootstrapServers)} configured");
}
foreach (string bootstrapServer in BootstrapServers.Select(EnvironmentResolver.Resolve))
{
if (string.IsNullOrEmpty(bootstrapServer) ||
!Uri.TryCreate(bootstrapServer, UriKind.Absolute, out Uri serverUri))
{
throw new LogException($"Invalid {nameof(BootstrapServers)} element: \"{bootstrapServer}\"");
}
ParsedBootStrapServers.Add(serverUri);
}
if (string.IsNullOrEmpty(Topic))
{
Console.WriteLine(
$"[{nameof(KafkaAppenderSettings)}] Invalid topic [{Topic}] resetting to default topic [logstash]");
Topic = "logstash";
}
Topic = EnvironmentResolver.Resolve(Topic);
ClientId = EnvironmentResolver.Resolve(ClientId);
Params["bootstrap.servers"] = string.Join(",", ParsedBootStrapServers.Select(x => x.ToString()));
Params["retries"] = Retries;
Params["client.id"] = string.Join(",", ParsedBootStrapServers.Select(x => x.ToString()));
Params["socket.blocking.max.ms"] = MaxBlockingMs;
Params["queue.buffering.max.ms"] = BufferingMaxMs;
string preStartMsg =
$"Starting {GetType().FullName} using config: {JsonConvert.SerializeObject(this)}";
Console.WriteLine(preStartMsg);
Trace.TraceInformation(preStartMsg);
}