/// <summary>
/// Continues a distributed call flow on this LOGICAL thread (asynchronous call chain) from the supplied state (JsonDataMap).
/// If the current logical thread is already set with distributed flow then throws exception.
/// Otherwise, sets the existing code flow step as the first step of the distributed one
/// </summary>
public static DistributedCallFlow Continue(IApplication app, JsonDataMap existing, Guid?guid = null, string directorName = null, string callerAgent = null, string callerPort = null)
{
app.NonNull(nameof(app));
existing.IsTrue(v => v != null && v.Count > 0, nameof(existing));
var current = ExecutionContext.CallFlow;
var result = current as DistributedCallFlow;
if (result == null)
{
result = new DistributedCallFlow();
result.ReadAsJson(existing, false, null);
if (current == null)
{
callerAgent = callerAgent.Default(System.Reflection.Assembly.GetCallingAssembly().GetName().Name);
callerPort = callerPort.Default(System.Reflection.Assembly.GetEntryAssembly()?.GetName().Name);
current = new CodeCallFlow(guid ?? Guid.NewGuid(), directorName, callerAgent, callerPort);
}
result.m_List.Add(new Step(app, ExecutionContext.Session, current));
ExecutionContext.__SetThreadLevelCallContext(result);
}
else
{
throw new AzosException("Distributed flow error: The context is already injected with DistributedCallFlow");
}
return(result);
}
