XmlHelper.cs

using System;
using System.Xml;
using System.Xml.Linq;
using System.Xml.Schema;
using Castle.Core.Internal;
using TUGraz.VectoCommon.Exceptions;
using TUGraz.VectoCore.Utils;

namespace VECTO3GUI2020.Helper
{
	public static class XmlHelper
	{
		public static XmlDocument ReadXmlDocument(string filePath)
		{
			if (filePath.IsNullOrEmpty())
				return null;

			var xmlDocument = new XmlDocument();
			
				
			xmlDocument.Load(filePath);	

			return xmlDocument;
		}


		public static XmlNodeList GetComponentNodes(XmlDocument xmlDocument, string parentNode, string nodeName)
		{
			if (xmlDocument == null || parentNode.IsNullOrEmpty() || nodeName.IsNullOrEmpty())
				return null;

			return xmlDocument.SelectNodes($"//*[local-name()='{parentNode}']//*[local-name()='{nodeName}']");
		}

		public static bool ValidateXDocument(XDocument xDocument, Action<bool> resultAction = null,
			Action<XmlSeverityType, ValidationEvent> validationErrorAction = null)
		{
			var xmlDocument = xDocument.ToXmlDocument();
			if (xmlDocument == null)
				return false;

			var documentType = XMLHelper.GetDocumentType(xmlDocument.DocumentElement.LocalName);
			if (documentType == null)
			{
				throw new VectoException("unknown xml file! {0}", xmlDocument.DocumentElement.LocalName);
			}

			var validator = new XMLValidator(xmlDocument, resultAction, validationErrorAction);
			return validator.ValidateXML(documentType.Value); ;
		}

		public static string GetXmlAbsoluteFilePath(string baseUri)
		{
			if (baseUri == null)
				return null;

			return Uri.UnescapeDataString(new Uri(baseUri).AbsolutePath);
		}
	}
}