/// <summary>
/// Initializes a new instance of the <see cref="PolicyInjectionBehavior"/> with the given information
/// about what's being intercepted and the current set of injection policies.
/// </summary>
/// <param name="interceptionRequest">Information about what will be injected.</param>
/// <param name="policies">Current injection policies.</param>
/// <param name="container">Unity container that can be used to resolve call handlers.</param>
public PolicyInjectionBehavior(CurrentInterceptionRequest interceptionRequest, InjectionPolicy[] policies,
IUnityContainer container)
{
var allPolicies = new PolicySet(policies);
bool hasHandlers = false;
var manager = new PipelineManager();
foreach (MethodImplementationInfo method in
interceptionRequest.Interceptor.GetInterceptableMethods(
interceptionRequest.TypeToIntercept, interceptionRequest.ImplementationType))
{
bool hasNewHandlers = manager.InitializePipeline(method,
allPolicies.GetHandlersFor(method, container));
hasHandlers = hasHandlers || hasNewHandlers;
}
pipelineManager = hasHandlers ? manager : null;
}
/// <summary>
/// Intercepts an exported value.
/// </summary>
/// <param name="value">The value to be intercepted.</param>
/// <returns>Intercepted value.</returns>
public object Intercept(object value)
{
var interfaces = value.GetType().GetInterfaces();
var proxyInterface = interfaces.FirstOrDefault();
var additionalInterfaces = interfaces.Skip(1).ToArray();
CurrentInterceptionRequest request = new CurrentInterceptionRequest(interceptor, proxyInterface, value.GetType());
InjectionPolicy[] policies = new InjectionPolicy[] { new AttributeDrivenPolicy() };
PolicyInjectionBehavior behaviour = new PolicyInjectionBehavior(request, policies, null);
var proxy = Microsoft.Practices.Unity.InterceptionExtension.Intercept.ThroughProxyWithAdditionalInterfaces(
proxyInterface,
value,
interceptor,
new[] { behaviour },
additionalInterfaces);
return proxy;
}