Dynamic/Transparent Proxy using DynamicProxy.NET

using System;
using System.Collections;
using System.Threading;

namespace DynamicProxyTutorial
{
	/// <summary>
	/// Proxy Performance tester
	/// </summary>
	public class Performance
	{
		public int instancesToTest = 1000000;
		public int gcWaitTime = 5000;
		public double milliSecondsToCreateHandProxy;
		public double milliSecondsToCreateDynamicProxy;
		public double milliSecondsToCallGetContentHandProxy;
		public double milliSecondsToCallGetContentDynamicProxy;

		public Performance() {
		}

		public void test() {
			testHandProxyInstances();
			testDynamicProxyInstances();
			testHandProxyInvocations();
			testDynamicProxyInvocations();
		}

		private void prepareForTest() {
			// Run the GC and wait for it to (hopefully) be done
			System.GC.Collect();
			Thread.Sleep(gcWaitTime);
		}

		private void testHandProxyInstances() {
			prepareForTest();

			DateTime startTime = DateTime.Now;
			for (int count = 0; count < instancesToTest; count++) {
				IFileViewer fileViewer = FileViewerProxyFactory.createProxy("", "", false);
				fileViewer = null;
			}
			DateTime endTime = DateTime.Now;
			TimeSpan diff = endTime.Subtract(startTime);
			milliSecondsToCreateHandProxy = timeDiff(startTime, endTime);
		}

		private void testDynamicProxyInstances() {
			prepareForTest();

			DateTime startTime = DateTime.Now;
			for (int count = 0; count < instancesToTest; count++) {
				IFileViewer fileViewer = FileViewerProxyFactory.createProxy("", "", true);
				fileViewer = null;
			}
			DateTime endTime = DateTime.Now;
			TimeSpan diff = endTime.Subtract(startTime);
			milliSecondsToCreateDynamicProxy = timeDiff(startTime, endTime);
		}

		private void testHandProxyInvocations() {
			prepareForTest();

			DateTime startTime = DateTime.Now;
			IFileViewer fileViewer = FileViewerProxyFactory.createProxy("", "", false);
			String valueHolder;
			for (int count = 0; count < instancesToTest; count++) {
				valueHolder = fileViewer.Content;
			}
			DateTime endTime = DateTime.Now;
			TimeSpan diff = endTime.Subtract(startTime);
			milliSecondsToCallGetContentHandProxy = timeDiff(startTime, endTime);
		}

		private void testDynamicProxyInvocations() {
			prepareForTest();

			DateTime startTime = DateTime.Now;
			IFileViewer fileViewer = FileViewerProxyFactory.createProxy("", "", true);
			String valueHolder;
			for (int count = 0; count < instancesToTest; count++) {
				valueHolder = fileViewer.Content;
			}
			DateTime endTime = DateTime.Now;
			TimeSpan diff = endTime.Subtract(startTime);
			milliSecondsToCallGetContentDynamicProxy = timeDiff(startTime, endTime);
		}

		private double timeDiff(DateTime startTime, DateTime endTime) {
			TimeSpan diff = endTime.Subtract(startTime);
			return (double)((double)(diff.Hours*60*60*1000 +  diff.Minutes*60*1000 + diff.Seconds*1000 + diff.Milliseconds))/(double)instancesToTest;
		}
	}

}