private void AddDependentInstance(object instance, IContextual contextual, IWeldCreationalContext creationalContext)
{
// by this we are making sure that the dependent instance has no transitive dependency with @PreDestroy / disposal method
if (!creationalContext.DependentInstances.Any())
{
var classComponent = contextual as ClassComponent;
if (classComponent != null)
{
if (!classComponent.IsDisposable
/* TODO: && component.HasInterceptors && component.HasDefaultProducer */)
{
return;
}
}
var producer = contextual as ProducerMethod;
if (producer != null)
{
/*TODO: if (producer.DisposalMethod == null && producer.HasDefaultProducer) */
return;
}
}
var componentInstance = new SerializableContextualInstance(contextual, instance, creationalContext, Container.Instance.ContextualStore);
creationalContext.AddDependentInstance(componentInstance);
}
public object Get(IContextual contextual, ICreationalContext creationalContext)
{
if (!IsActive)
{
throw new ContextNotActiveException(Scope);
}
var store = ComponentStore;
if (store == null)
{
return(null);
}
if (contextual == null)
{
throw new ArgumentNullException("contextual");
}
var contextualStore = Container.Instance.ContextualStore;
var id = contextualStore.PutIfAbsent(contextual);
var instance = store.GetOrPut(id, _ =>
{
var i = contextual.Create(creationalContext);
return(new SerializableContextualInstance(contextual, i, creationalContext, contextualStore));
});
if (instance != null)
{
return(instance.Instance);
}
return(null);
}
private WeldCreationalContext(IContextual contextual,
Dictionary <IContextual, object> incompleteInstanceMap,
List <IContextualInstance> parentDependentInstances)
{
_contextual = contextual;
_incompleteInstanceMap = incompleteInstanceMap;
_parentDependentInstances = parentDependentInstances;
}
/// <summary>Remove contextual values from the tracker.</summary>
/// <param name="value">The context value to stop tracking. Null values are ignored.</param>
public AggregateContextual Remove(IContextual value)
{
if (value != null && this.ValuesImpl.Remove(value))
{
this.IsMutable = this.ValuesImpl.Any(p => p.IsMutable);
this.IsReady = this.ValuesImpl.All(p => p.IsReady);
}
return(this);
}
public void Release(IContextual contextual, object instance)
{
foreach (var dependentInstance in _dependentInstances)
{
if (contextual == null || !Equals(dependentInstance.Contextual, contextual))
{
Destroy(dependentInstance);
}
}
}
/*********
** Accessors
*********/
/// <summary>Add contextual values to the tracker.</summary>
/// <param name="value">The context value to track. Null values are ignored.</param>
public AggregateContextual Add(IContextual value)
{
if (value != null)
{
this.ValuesImpl.Add(value);
this.IsMutable = this.IsMutable || value.IsMutable;
this.IsReady = this.IsReady && value.IsReady;
}
return(this);
}
public SerializableContextual(IContextual contextual, IContextualStore contextualStore)
{
_cachedContextualStore = contextualStore;
if (contextual.GetType().IsSerializable)
{
_serializable = contextual;
}
else
{
_id = contextualStore.PutIfAbsent(contextual);
}
_cached = contextual;
}
public object Get(IContextual contextual, ICreationalContext creationalContext)
{
if (!IsActive)
{
throw new ContextNotActiveException(Scope);
}
if (creationalContext != null)
{
var instance = contextual.Create(creationalContext);
var weldContext = creationalContext as IWeldCreationalContext;
if (weldContext != null)
{
AddDependentInstance(instance, contextual, weldContext);
}
return(instance);
}
return(null);
}
/// <summary>
/// Add a contextual (if not already present) to the store, and return it's
/// id. If the contextual is passivation capable, it's id will be used,
/// otherwise an id will be generated
/// </summary>
/// <param name="contextual">contextual the contexutal to add</param>
/// <returns>the current id for the contextual</returns>
public ComponentIdentifier PutIfAbsent(IContextual contextual)
{
var passivationCapable = contextual as IPassivationCapable <ComponentIdentifier>;
if (passivationCapable != null)
{
var id = passivationCapable.Id;
_passivationCapableContextuals.TryAdd(id, contextual);
return(id);
}
return(_contextuals.GetOrAdd(contextual, _ =>
{
var id = new ComponentIdentifier(
string.Format("{0}{1}", GeneratedIdPrefix, Interlocked.Increment(ref _idIncrement)));
_contextualsInverse[id] = contextual;
return id;
}));
}
public ICreationalContext CreateCreationalContext(IContextual contextual)
{
return(new WeldCreationalContext(contextual));
}
public object Get(IContextual contextual)
{
return(Get(contextual, null));
}
public object GetIncompleteInstance(IContextual contextual)
{
return(_incompleteInstanceMap.GetOrDefault(contextual));
}
public ICreationalContext GetCreationalContext(IContextual contextual)
{
return(new WeldCreationalContext(contextual,
new Dictionary <IContextual, object>(_incompleteInstanceMap),
_dependentInstances));
}
public WeldCreationalContext(IContextual contextual)
: this(contextual,
new Dictionary <IContextual, object>(),
new List <IContextualInstance>())
{
}
public SerializableContextualInstance(IContextual contextual, object instance, ICreationalContext creationalContext, IContextualStore contextualStore)
{
Contextual = new SerializableContextual(contextual, contextualStore);
Instance = instance;
CreationalContext = creationalContext;
}
