public ILifetimeScope GetScope(CreationContext context)
{
var messageContext = MessageContext.Current;
if (messageContext == null)
{
throw new InvalidOperationException(string.Format("Attempted to resolve {0} outside of Rebus message context!", context.RequestedType));
}
var items = messageContext.TransactionContext.Items;
object lifetimeScope;
if (items.TryGetValue(LifestimeScopeItemKey, out lifetimeScope))
{
return (ILifetimeScope) lifetimeScope;
}
var defaultLifetimeScope = new DefaultLifetimeScope();
items[LifestimeScopeItemKey] = defaultLifetimeScope;
messageContext.TransactionContext.OnDisposed(() => defaultLifetimeScope.Dispose());
return defaultLifetimeScope;
}
public ILifetimeScope GetScope(CreationContext context)
{
var selected = context.SelectScopeRoot(scopeRootSelector);
if (selected == null)
{
throw new InvalidOperationException(
string.Format(
"Scope was not available for '{0}'. No component higher up in the resolution stack met the criteria specified for scoping the component. This usually indicates a bug in custom scope root selector or means that the component is being resolved in a unforseen context (a.k.a - it's probably a bug in how the dependencies in the application are wired).",
componentModel.Name));
}
var stash = (DefaultLifetimeScope)selected.GetContextualProperty(ScopeStash);
if (stash == null)
{
DefaultLifetimeScope newStash = null;
newStash = new DefaultLifetimeScope(new ScopeCache(), burden =>
{
if (burden.RequiresDecommission)
{
selected.Burden.RequiresDecommission = true;
selected.Burden.GraphReleased += delegate { newStash.Dispose(); };
}
});
selected.SetContextualProperty(ScopeStash, newStash);
stash = newStash;
}
return(stash);
}
