static void BuildRequestContentMethod(Type t, BuilderContextItem item)
{
//get interface type
var iface = t.GetInterface(typeof(IRequestContentBuilder <>).FullName);
if (iface == null)
{
return;
}
var dataType = iface.GetGenericArguments()[0];
if (item.BuilderObject == null)
{
item.BuilderObject = Activator.CreateInstance(t);
}
var p1 = Expression.Parameter(typeof(object), "p1");
var p2 = Expression.Parameter(typeof(RequestWrapRequestContentEventArgs), "p2");
var callMethod = Expression.Call(
Expression.Constant(item.BuilderObject),
t.GetMethod("BuildRequestContent"),
Expression.Convert(p1, dataType),
p2
);
item.CachedWrapMethod = Expression.Lambda <Func <object, RequestWrapRequestContentEventArgs, HttpRequestContent> >(callMethod, p1, p2).Compile();
}
static BuilderContextItem GetBuilderContextItem(Type type)
{
BuilderContextItem item;
if (_contextCache.TryGetValue(type, out item))
{
return(item);
}
lock (_contextCache)
{
if (_contextCache.TryGetValue(type, out item))
{
return(item);
}
var attributes = type.GetCustomAttributes(true);
foreach (var attribute in attributes)
{
if (attribute is RequestContentBuilderAttribute)
{
BuildRequestContentMethod((attribute as RequestContentBuilderAttribute).Type, item ?? (item = new BuilderContextItem()));
}
else if (attribute is ResponseContentBuilderAttribute)
{
BuildResponseContentMethod((attribute as ResponseContentBuilderAttribute).Type, item ?? (item = new BuilderContextItem()));
}
}
_contextCache.Add(type, item);
}
return(item);
}