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namespace System.Web.Mvc {
using System.Collections.Generic;
using System.Linq;
public class FilterInfo {
private List<IActionFilter> _actionFilters = new List<IActionFilter>();
private List<IAuthorizationFilter> _authorizationFilters = new List<IAuthorizationFilter>();
private List<IExceptionFilter> _exceptionFilters = new List<IExceptionFilter>();
private List<IResultFilter> _resultFilters = new List<IResultFilter>();
public FilterInfo() {
}
public FilterInfo(IEnumerable<Filter> filters) {
// evaluate the 'filters' enumerable only once since the operation can be quite expensive
var filterInstances = filters.Select(f => f.Instance).ToList();
_actionFilters.AddRange(filterInstances.OfType<IActionFilter>());
_authorizationFilters.AddRange(filterInstances.OfType<IAuthorizationFilter>());
_exceptionFilters.AddRange(filterInstances.OfType<IExceptionFilter>());
_resultFilters.AddRange(filterInstances.OfType<IResultFilter>());
}
public IList<IActionFilter> ActionFilters {
get {
return _actionFilters;
}
}
public IList<IAuthorizationFilter> AuthorizationFilters {
get {
return _authorizationFilters;
}
}
public IList<IExceptionFilter> ExceptionFilters {
get {
return _exceptionFilters;
}
}
public IList<IResultFilter> ResultFilters {
get {
return _resultFilters;
}
}
}
}
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