[Fork] Roslyn XmlSerializer startup fiddle

CSharp · Console

/Program.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Xml.Serialization;
using System.Xml;
using System.Xml.Linq;
using System.IO;
using System.Data;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO.Compression;

    //https://stackoverflow.com/questions/48427634/how-to-use-xmlserializer-to-serialize-derived-instances

    public static class XmlNamespaces
    {
        public const string OpengisWfs = "http://www.opengis.net/wfs";
    }

    [XmlRoot(Namespace = XmlNamespaces.OpengisWfs)]
    public class Query
    {
        public Filter Filter { get; set; }
    }

    [XmlInclude(typeof(PropertyIsOpFilter))]
    [XmlInclude(typeof(OpFilterBase))]
    [XmlRoot(Namespace = XmlNamespaces.OpengisWfs)]
    public class Filter
    {
        [XmlElement]
        public Filter And { get; set; }
    }

    [XmlInclude(typeof(PropertyIsEqualToFilter))]
    [XmlRoot(Namespace = XmlNamespaces.OpengisWfs)]
    public class PropertyIsOpFilter : Filter
    {
        public Filter LeftOp { get; set; }

        public Filter RightOp { get; set; }
    }

    [XmlRoot("IsEqualTo", Namespace = XmlNamespaces.OpengisWfs)]
    public class PropertyIsEqualToFilter : PropertyIsOpFilter { }

    [XmlInclude(typeof(LiteralFilter))]
    [XmlRoot(Namespace = XmlNamespaces.OpengisWfs)]
    public class OpFilterBase : Filter
    {
        public string Op { get; set; }
        public object Value { get; set; }
    }

    [XmlRoot(Namespace = XmlNamespaces.OpengisWfs)]
    public class LiteralFilter : OpFilterBase { }

    class TestClass
    {
        public static string ToXml(Object o)
        {
            var inputSerializer = new XmlSerializer(o.GetType());
            using (var writer = new Utf8StringWriter())
            {
                using (var xmlWriter = XmlWriter.Create(writer, new XmlWriterSettings { Indent = true }))
                {
                    inputSerializer.Serialize(xmlWriter, o);
                }
                return writer.ToString();
            }
        }

        public static void Test()
        {
            Filter o = new PropertyIsEqualToFilter()
            {
                LeftOp = new LiteralFilter()
                {
                    Value = 1
                },
                RightOp = new LiteralFilter()
                {
                    Value = 1
                }
            };

            var query = new Query()
            {
                Filter = o
            };

            var xml = ToXml(query);

            Console.WriteLine(xml);

            var query2 = xml.LoadFromXml<Query>();

            var xml2 = ToXml(query2);

            Assert.IsTrue(XNode.DeepEquals(XElement.Parse(xml), XElement.Parse(xml2)));

            Assert.IsTrue(query.Filter.GetType() == query2.Filter.GetType());

            Console.WriteLine("\nTests Passed.");
        }
    }

    public class Utf8StringWriter : System.IO.StringWriter
    {
        public override Encoding Encoding { get { return Encoding.UTF8; } }
    }

    public static class XmlSerializationHelper
    {
        public static T LoadFromXml<T>(this string xmlString, XmlSerializer serial = null)
        {
            serial = serial ?? new XmlSerializer(typeof(T));
            using (var reader = new StringReader(xmlString))
            {
				return (T)serial.Deserialize(reader);
            }
        }

        public static string GetXml<T>(this T obj, bool omitStandardNamespaces)
        {
			return obj.GetXml(null, omitStandardNamespaces);
        }
		
        public static string GetXml<T>(this T obj, XmlSerializer serializer = null, bool omitStandardNamespaces = false)
        {
            XmlSerializerNamespaces ns = null;
            if (omitStandardNamespaces)
            {
                ns = new XmlSerializerNamespaces();
                ns.Add("", ""); // Disable the xmlns:xsi and xmlns:xsd lines.
            }			
            using (var textWriter = new StringWriter())
            {
                var settings = new XmlWriterSettings() { Indent = true }; // For cosmetic purposes.
                using (var xmlWriter = XmlWriter.Create(textWriter, settings))
                    (serializer ?? new XmlSerializer(obj.GetType())).Serialize(xmlWriter, obj, ns);
                return textWriter.ToString();
            }
        }
		
		public static string GetOuterXml(this XmlNode node, bool indent = true)
		{
			if (node == null)
				return null;
			using (var textWriter = new StringWriter())
			{
				var settings = new XmlWriterSettings
				{
					Indent = indent,
					OmitXmlDeclaration = true,
				};
				using (var xmlWriter = XmlWriter.Create(textWriter, settings))
				{
					node.WriteTo(xmlWriter);
				}
				return textWriter.ToString();
			}
		}
    }
				
    public class AssertionFailedException : System.Exception
    {
        public AssertionFailedException() : base() { }

        public AssertionFailedException(string s) : base(s) { }
    }

    public static class Assert
    {
        public static void IsTrue(bool value)
        {
            IsTrue(value, "failed");
        }

        public static void IsTrue(bool value, string message)
        {
            if (value == false)
                throw new AssertionFailedException(message ?? "failed");
        }
    }
						
	public class Program
	{
		public static void Main()
		{
			Console.WriteLine("Roslyn 2.0 Compiler; Environment version: " + Environment.Version);
			Console.WriteLine();

			try
			{
				TestClass.Test();
			}
			catch (Exception ex)
			{
				Console.WriteLine("Uncaught exception: ");
				Console.WriteLine(ex);
				throw;
			}
		}
	}