public override async Task <ICommandResult> HandleAsync(ICommand command, IAsyncCollector <ICommand> commandQueue, IDurableOrchestrationContext orchestrationContext, ILogger log)
{
if (command is null)
{
throw new ArgumentNullException(nameof(command));
}
var commandResult = command.CreateResult();
try
{
if (CanHandle(command))
{
var containerDocument = (IContainerDocument)command.Payload;
using var loggerFactory = new PassthroughLoggerFactory(log);
using var serviceManager = CreateServiceManager();
var broadcastMessage = new BroadcastMessage()
{
Action = commandResult.CommandAction.ToString().ToLowerInvariant(),
Timestamp = commandResult.LastUpdatedTime.GetValueOrDefault(DateTime.UtcNow),
Items = GetItems(containerDocument)
};
var broadcastPayload = TeamCloudSerialize.SerializeObject(broadcastMessage);
await foreach (var hubName in ResolveHubNamesAsync(containerDocument))
{
var hubContext = await serviceManager
.CreateHubContextAsync(hubName, CancellationToken.None)
.ConfigureAwait(false);
var negotiation = await hubContext
.NegotiateAsync()
.ConfigureAwait(false);
await hubContext.Clients.All
.SendAsync(command.CommandAction.ToString(), broadcastMessage)
.ConfigureAwait(false);
}
}
else
{
throw new NotImplementedException($"Missing orchestrator command handler implementation ICommandHandler<{command.GetTypeName(prettyPrint: true)}> at {GetType()}");
}
}
catch (Exception exc)
{
commandResult.Errors.Add(exc);
}
return(commandResult);
async IAsyncEnumerable <string> ResolveHubNamesAsync(object commandResultPayload)
{
yield return(commandResultPayload switch
{
IProjectContext projectContext => projectContext.GetHubName(),
IOrganizationContext organizationContext => organizationContext.GetHubName(),
Organization organization => organization.GetHubName(),
_ => throw new NotSupportedException($"Unable to resolve hub name for command result payload of type '{commandResultPayload?.GetType()}'.")
});
if (commandResultPayload is User user)
{
foreach (var membership in user.ProjectMemberships)
{
var project = await projectRepository
.GetAsync(user.Organization, membership.ProjectId)
.ConfigureAwait(false);
yield return(project.GetHubName());
}
}
}