CompositeTextTransformation.cs :  » Bloggers » SubText » Subtext » Framework » Services » C# / CSharp Open Source

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using System.Collections.ObjectModel;
using System.Linq;

namespace Subtext.Framework.Services{
    public class CompositeTextTransformation : Collection<ITextTransformation>, ITextTransformation
    {
        public string Transform(string original)
        {
            return this.Aggregate(original,
                                  (resultFromLastTransform, transformation) =>
                                  transformation.Transform(resultFromLastTransform));
        }

        /// <summary>
        /// Removes the text transformation of the given type.
        /// </summary>
        /// <typeparam name="TTextTransformation"></typeparam>
        public void Remove<TTextTransformation>() where TTextTransformation : ITextTransformation
        {
            foreach(ITextTransformation textTransform in this)
            {
                if(textTransform.GetType() == typeof(TTextTransformation))
                {
                    Remove(textTransform);
                    return;
                }
            }
        }
    }
}