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POAccessing UnityContainer from AttributeHandler
 

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    <p>I have Unity setup to intercept method calls when the method is decorated with a specific attribute. I want all Unity proxy objects to persist within each thread (rather than be transient).</p> <p>The issue is that the object created by the decoration attribute is created 'new' each time. I cannot see a way to access the UnityContainer from within the attribute. If I could, I would create the LogHandler as a per-thread entity and request it via Unity. (Does this even make sense though? Using Unity to resolve objects used in unity interception?).</p> <p>If you run this code, the count output by the logger is always '1'. To be clear, this 'LogHandler' is what I want to persist.</p> <p>How do you resolve objects via unity elsewhere in your code? Do you pass around the unity container? Is there a pattern I can use to request it from anywhere in my code?</p> <pre><code>using System; using Microsoft.Practices.Unity; using Microsoft.Practices.Unity.InterceptionExtension; namespace UnityTest2 { class Program { private static UnityContainer _uC; static void Main(string[] args) { _uC = new UnityContainer(); _uC.AddNewExtension&lt;Interception&gt;(); _uC.Configure&lt;Interception&gt;().SetInterceptorFor&lt;ICalc&gt;(new InterfaceInterceptor()); _uC.RegisterType&lt;ICalc, Calc&gt;( new PerThreadLifetimeManager() ); var c = _uC.Resolve&lt;ICalc&gt;(); Console.WriteLine(c.Add(3, 7)); Console.WriteLine(c.Sub(3, 7)); Console.ReadKey(); } } public class LogAttribute : HandlerAttribute { public override ICallHandler CreateHandler(IUnityContainer container) { // I want this to persist per thread return new LogHandler(); } } public class LogHandler : ICallHandler { private int runCount = 0; public IMethodReturn Invoke(IMethodInvocation input, GetNextHandlerDelegate getNext) { runCount++; // this is always '1' Console.WriteLine(runCount); return getNext()(input, getNext); } public int Order { get; set; } } public interface ICalc { int Add(int x, int y); int Sub(int x, int y); int Mul(int x, int y); } public class Calc : ICalc { [Log] public int Add(int x, int y) { return x + y; } [Log] public int Sub(int x, int y) { return x - y; } public int Mul(int x, int y) { return x * y; } } } </code></pre>
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