/// <summary>
/// Establishes the binding.
/// </summary>
public void Bind()
{
var metadataAttribute = BindingMetadataAttribute.Get(RequiredPort.GetMethod());
var delegateField = metadataAttribute.DelegateField;
var providedPortDelegate = ProvidedPort.CreateDelegate(delegateField.FieldType);
delegateField.SetValue(RequiredPort.TargetObject, providedPortDelegate);
}
/// <summary>
/// Initializes a new instance.
/// </summary>
/// <param name="requiredPort">The reference to the required port that should be bound.</param>
/// <param name="providedPort">The reference to the provided port that should be bound.</param>
public PortBinding(PortReference requiredPort, PortReference providedPort)
{
Requires.NotNull(requiredPort, nameof(requiredPort));
Requires.NotNull(providedPort, nameof(providedPort));
RequiredPort = requiredPort;
ProvidedPort = providedPort;
var metadataAttribute = BindingMetadataAttribute.Get(RequiredPort.GetMethod());
metadataAttribute.BindingField.SetValue(requiredPort.TargetObject, this);
}
/// <summary>
/// Binds all <see cref="PortBinding" /> instances found in the <paramref name="objects" />.
/// </summary>
/// <param name="objects">The objects that should be bound.</param>
internal static void BindAll(IEnumerable <object> objects)
{
Requires.NotNull(objects, nameof(objects));
// Set all default bindings so that we can be sure to get a helpful error message when
// an unbound port is called
foreach (var component in objects.OfType <Component>())
{
foreach (var requiredPort in component.GetRequiredPorts())
{
var metadata = BindingMetadataAttribute.Get(requiredPort);
metadata.DefaultMethod.Invoke(component, new object[0]);
}
}
// Set all bindings that were initialized at model construction time
foreach (var binding in objects.OfType <PortBinding>())
{
binding.Bind();
}
}
