XMLTRANSFORMER - CLASSE POUR SIMPLIFIER LA TRANSFORMATION EN UTILISANT DES FICHIERS XSL

using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
using System.Xml.Xsl;
using System.Xml.XPath;
using System.IO;

namespace XMLTransform
{

    class XMLTransformer
    {

        private XslCompiledTransform _xslTransformer;


        public XMLTransformer(XmlDocument Source, XslCompiledTransform XSLTransformer)
        {
            _xslTransformer = XSLTransformer;
        }

        public string Transform(XmlDocument Source)
        {
            XPathDocument xpathDoc = new XPathDocument(new XmlNodeReader(Source));
            StringWriter sw = new StringWriter(new StringBuilder());

            _xslTransformer.Transform(xpathDoc, null, sw);

            return sw.ToString();
        }

        /// <summary>
        /// Direct transformation using XSL
        /// </summary>
        /// <param name="Source">XmlDocument as  Source file</param>
        /// <param name="XSLTransformer">XslCompiledTransform class to transform the XML source</param>
        /// <returns>Transformed XML File</returns>
        public static string DirectTransform(XmlDocument Source, XslCompiledTransform XSLTransformer)
        {
            XPathDocument xpathDoc = new XPathDocument(new XmlNodeReader(Source));
            StringWriter sw = new StringWriter(new StringBuilder());

            XSLTransformer.Transform(xpathDoc, null, sw);

            return sw.ToString();
        }

        /// <summary>
        /// Direct transformation using XSL
        /// </summary>
        /// <param name="Source">XmlDocument as  Source file</param>
        /// <param name="XSLFileName">XSLFile name to transform the XML source</param>
        /// <returns>Transformed XML File</returns>
        public static string DirectTransform(XmlDocument Source, string XSLFileName)
        {
            XslCompiledTransform _xslTransformer = new XslCompiledTransform();

            if (File.Exists(XSLFileName))
            {
                _xslTransformer.Load(XSLFileName);
                return DirectTransform(Source, _xslTransformer);
            }
            else
            {
                throw new FileNotFoundException(string.Format("Unable to find the XSL file : {0}", XSLFileName));
            }

        }

        /// <summary>
        /// Direct transformation using XSL
        /// </summary>
        /// <param name="SourceFile">XML filename as source</param>
        /// <param name="XSLFileName">XSL filename</param>
        /// <returns>Transformed XML File</returns>
        public static string DirectTransform(string SourceFile, string XSLFileName)
        {
            XmlDocument _source = new XmlDocument();
            XmlTextReader _xtr;


            if (File.Exists(SourceFile))
            {
                _xtr = new XmlTextReader(SourceFile);
            }
            else
            {
                throw new FileNotFoundException(string.Format("Unable to find the XSL file : {0}", SourceFile));
            }


            _source.Load(_xtr); // .LoadXml(SourceFile);

            return DirectTransform(_source, XSLFileName);
        }
    }
}