static Props CreatePropsFor(GrainAndActor grainAndActor, IServiceProvider provider)
=> Props.FromProducer(() => Activator.CreateInstance(
grainAndActor.Actor,
grainAndActor.IsPerTenant
? GetTenantGrainFactory(grainAndActor, provider)
: GetGrainFactory(grainAndActor, provider)) as IActor)
.WithTracing()
.WithClusterRequestDeduplication(TimeSpan.FromSeconds(60)
);
static object GetTenantGrainFactory(GrainAndActor grainAndActor, IServiceProvider provider)
{
var tenantDelegateType = typeof(Func <, , ,>).MakeGenericType(
typeof(TenantId),
typeof(IContext),
typeof(ClusterIdentity),
grainAndActor.Grain);
var resolvedTenantDelegate = provider.GetRequiredService(tenantDelegateType);
var contextParameter = Expression.Parameter(typeof(IContext), "context");
var clusterIdentityParameter = Expression.Parameter(typeof(ClusterIdentity), "identity");
return(Expression.Lambda(
Expression.Invoke(
Expression.Constant(resolvedTenantDelegate),
Expression.Invoke(_parseIdentity, clusterIdentityParameter),
contextParameter,
clusterIdentityParameter
),
contextParameter,
clusterIdentityParameter
).Compile());
}
static object GetGrainFactory(GrainAndActor grainAndActor, IServiceProvider provider)
=> provider.GetRequiredService(typeof(Func <, ,>).MakeGenericType(
typeof(IContext),
typeof(ClusterIdentity),
grainAndActor.Grain));