private IMetric ActivateMetrics(string metric, Dictionary <string, string> args)
{
ObjectHandle handle;
try
{
handle = Activator.CreateInstance(typeof(IMetric).Assembly.FullName, "WebAnalytics.Model.Metrics." + metric);
}
catch (Exception)
{
return(null);
}
//return the wrapped object
IMetric m = (IMetric)handle.Unwrap();
try
{
//Send the arguments that was appended to the URI and let each metric strip the arguments of what it may need to compute its metric value.
m.SetParameters(args);
}
catch (KeyNotFoundException)
{
throw new Exception("Metric cannot be computed without arguments");
}
catch (NotImplementedException)
{
//no op
}
return(m);
}