private async ValueTask <IAppConnection> ResolveTargetConnectionAsync(
IProvidedMethodReference methodReference,
IAppConnection source,
IContextLinkageOptions contextLinkageOptions)
{
var method = _registryService.GetProvidedMethod(methodReference);
var launchMode = GetLaunchMode(method);
var appId = methodReference.ProvidedService.ApplicationId;
if (methodReference.ProvidedService.ConnectionId.HasValue)
{
var connectionId = methodReference.ProvidedService.ConnectionId.Value;
if (!_appLifecycleManager.TryGetOnlineConnection(connectionId, out var connection))
{
throw new InvalidOperationException($"The requested app {appId} connection {connectionId} is not online");
}
return(connection);
}
Task <ResolvedConnection> resolveTask;
lock (_resolveConnectionSync)
{
if (launchMode != LaunchMode.MultiInstance)
{
var onlineConnections = _appLifecycleManager
.GetOnlineConnections()
.Where(x => x.Info.ApplicationId.Equals(appId) &&
!x.Id.Equals(source.Id)).ToArray();
if (_contextLinkageManager.IsContextShouldBeConsidered(contextLinkageOptions, source))
{
onlineConnections = _contextLinkageManager
.GetAppsInContexts(contextLinkageOptions, source, true)
.Join(onlineConnections, x => x.ConnectionId.Value, y => y.Id, (x, y) => y)
.ToArray();
}
if (onlineConnections.Any())
{
return(onlineConnections.First());
}
}
if (launchMode == LaunchMode.None || !_appLifecycleManager.CanBeLaunched(appId))
{
throw new InvalidOperationException(
$"The requested app {appId} is not online and cannot be launched");
}
var resolveMode = ConvertToResolveMode(launchMode);
resolveTask = _appLifecycleManager.LaunchAndConnectAsync(appId, resolveMode, source.Info);
}
var resolvedConnection = await resolveTask.ConfigureAwait(false);
return(resolvedConnection.AppConnection);
}
public async Task <ResolveAppResponse> ResolveApp(ResolveAppRequest request, MethodCallContext context)
{
Log.Info("Resolving app by request {{{0}}} from {{{1}}}", request, context);
var referrerConnectionInfo = new AppConnectionDescriptor(
context.ConsumerConnectionId,
context.ConsumerApplicationId,
context.ConsumerApplicationInstanceId,
context.ConsumerTransportType);
var resolveMode = Convert(request.AppResolveMode);
if (resolveMode == ResolveMode.SingleInstance)
{
var connection = _appLifecycleManager.GetOnlineConnections().FirstOrDefault(c => c.Info.ApplicationId.Equals(request.AppId));
Log.Debug("Resolved connection for app {0} with mode {1} to online instance {{{2}}}", connection, resolveMode, connection);
if (connection != null)
{
return(new ResolveAppResponse
{
AppInstanceId = connection.Info.ApplicationInstanceId.ToProto(),
AppConnectionId = connection.Info.ConnectionId.ToProto(),
IsNewInstanceLaunched = false,
});
}
}
var resolvedConnection = await _appLifecycleManager.LaunchAndConnectAsync(
request.AppId, resolveMode, referrerConnectionInfo).ConfigureAwait(false);
var info = resolvedConnection.AppConnection.Info;
Log.Info("App connection {{{0}}} resolved by request from {{{1}}}", resolvedConnection, context);
var response = new ResolveAppResponse
{
AppConnectionId = info.ConnectionId.ToProto(),
AppInstanceId = info.ApplicationInstanceId.ToProto(),
IsNewInstanceLaunched = resolvedConnection.IsNewInstance
};
return(response);
}
private async ValueTask <IAppConnection> ResolveTargetConnectionAsync(
IProvidedMethodReference methodReference,
IAppConnection source,
ITransportChannel sourceChannel,
IContextLinkageOptions contextLinkageOptions)
{
if (methodReference.ProvidedService.ConnectionId.HasValue)
{
var connectionId = methodReference.ProvidedService.ConnectionId.Value;
if (!_appLifecycleManager.TryGetOnlineConnection(connectionId, out var connection))
{
throw new InvalidOperationException($"The requested connection {connectionId} is not online");
}
return(connection);
}
var appId = methodReference.ProvidedService.ApplicationId;
if (methodReference.ProvidedService.ApplicationInstanceId.HasValue)
{
var appInstanceId = methodReference.ProvidedService.ApplicationInstanceId.Value;
if (appId.HasValue && _appLifecycleManager.TryGetConnectionInProgress(appInstanceId, appId.Value, out var connectionInProgress))
{
return(await connectionInProgress);
}
var connections = _appLifecycleManager.GetAppInstanceConnections(appInstanceId).ToList();
if (connections.Count == 0)
{
throw new InvalidOperationException($"App instance {appInstanceId} is doesn't have online connections");
}
if (appId.HasValue)
{
var connection = connections.FirstOrDefault(c => c.Info.ApplicationId.Equals(appId.Value));
if (connection == null)
{
throw new InvalidOperationException($"App instance {appInstanceId} is doesn't have connection with {appId.Value} application id");
}
return(connection);
}
if (connections.Count == 1)
{
return(connections.Single());
}
throw new InvalidOperationException($"App instance {appInstanceId} has several connections, you need to specify ApplicationId to make call to specific connection");
}
if (!appId.HasValue)
{
throw new InvalidOperationException($"AppId is required to resolve target connection for {methodReference} provided method reference");
}
var appIdValue = appId.Value;
var method = _registryService.GetProvidedMethod(methodReference);
var launchMode = GetLaunchMode(method);
Task <ResolvedConnection> resolveTask;
lock (_resolveConnectionSync)
{
if (launchMode != LaunchMode.MultiInstance)
{
var onlineConnections = _appLifecycleManager
.GetOnlineConnections()
.Where(x => x.Info.ApplicationId.Equals(appIdValue) &&
!x.Id.Equals(source.Id)).ToArray();
if (_contextLinkageManager.IsContextShouldBeConsidered(contextLinkageOptions, source))
{
onlineConnections = _contextLinkageManager
.GetAppsInContexts(contextLinkageOptions, source, true)
.Join(onlineConnections, x => x.ConnectionId.Value, y => y.Id, (x, y) => y)
.ToArray();
}
if (onlineConnections.Any())
{
return(onlineConnections.First());
}
}
if (launchMode == LaunchMode.None || !_appLifecycleManager.CanBeLaunched(appIdValue))
{
throw new InvalidOperationException(
$"The requested app {appIdValue} is not online and cannot be launched");
}
var resolveMode = ConvertToResolveMode(launchMode);
resolveTask = _appLifecycleManager.LaunchAndConnectAsync(appIdValue, resolveMode, source.Info);
}
var resolvedConnection = await resolveTask.ConfigureAwait(false);
return(resolvedConnection.AppConnection);
}