internal void FillCorrelationContext(string correlationHeader, CorrelationContext context)
{
try
{
byte[] data = Convert.FromBase64String(correlationHeader);
string json = Encoding.UTF8.GetString(data);
dynamic parsedHeader = JObject.Parse(json);
string correlationId = (string)parsedHeader.id;
if (string.IsNullOrEmpty(correlationId))
{
_logger.LogWarning("Invalid correlationheader, id is required." + correlationHeader);
var exception = new ValidationException("Invalid correlationHeader, id is required.", "REQCOR");
exception.AddMessage("Invalid correlationHeader, id is required.");
throw exception;
}
context.TrySetValues(correlationId,
(string)parsedHeader.sourceId,
(string)parsedHeader.sourceName,
(string)parsedHeader.instanceId,
(string)parsedHeader.instanceName,
(string)parsedHeader.userId,
(string)parsedHeader.ipAddress,
correlationHeader);
}
catch (FormatException)
{
_logger.LogWarning("Invalid correlationheader " + correlationHeader);
var exception = new ValidationException("Invalid correlationHeader.", "REQCOR");
exception.AddMessage("Invalid correlationHeader, id is required.");
throw exception;
}
}
public static void SetDgpHeader(this CorrelationContext context)
{
if (context == null)
{
throw new NullReferenceException($"{nameof(context)} cannot be null.");
}
context.DgpHeader = Convert.ToBase64String(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(context)));
}
public CorrelationContext GetContext()
{
var request = _httpContextAccessor?.HttpContext?.Request;
var headerValues = request?.Headers?.FirstOrDefault(x => x.Key == CorrelationHeader.Key).Value;
if (request == null)
{
_logger.LogDebug($"{GetType().Name}.CorrelationContext - No incoming request");
}
if (!headerValues.HasValue || !headerValues.Value.Any())
{
_logger.LogDebug($"{GetType().Name}.CorrelationContext - No correlation header found in incoming request");
}
else if (headerValues.Value.Count > 1)
{
_logger.LogError($"{GetType().Name}.CorrelationContext( - Multiple correlation headers found in incoming request");
}
else
{
string correlationHeader = headerValues.Value.FirstOrDefault();
var context = _correlationContextFormatter.ValidateAndSetPropertiesFromDgpHeader(correlationHeader);
return(context);
}
var correlationContext = new CorrelationContext
{
Id = Guid.NewGuid().ToString(),
SourceId = _applicationContext.ApplicationId,
SourceName = _applicationContext.ApplicationName,
InstanceId = _applicationContext.InstanceId,
InstanceName = _applicationContext.InstanceName,
IpAddress = _httpContextAccessor.HttpContext?.Connection?.RemoteIpAddress?.ToString() ?? String.Empty
};
correlationContext.SetDgpHeader();
_logger.LogDebug($"CorrelationHeader not found, created correlationId with header value '{correlationContext.DgpHeader}'");
return(correlationContext);
}