XmlSerializableServices.cs

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using System.Collections.Generic;
using System.Xml;
using System.Xml.Schema;
 
namespace System.Runtime.Serialization;
 
public static class XmlSerializableServices
{
    internal static string AddDefaultSchemaMethodName = "AddDefaultSchema";
 
    public static XmlNode[] ReadNodes(XmlReader xmlReader)
    {
        if (xmlReader == null)
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("xmlReader");
        }
        XmlDocument xmlDocument = new XmlDocument();
        List<XmlNode> list = new List<XmlNode>();
        if (xmlReader.MoveToFirstAttribute())
        {
            do
            {
                if (IsValidAttribute(xmlReader))
                {
                    XmlNode xmlNode = xmlDocument.ReadNode(xmlReader);
                    if (xmlNode == null)
                    {
                        throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlObjectSerializer.CreateSerializationException(System.SR.UnexpectedEndOfFile));
                    }
                    list.Add(xmlNode);
                }
            }
            while (xmlReader.MoveToNextAttribute());
        }
        xmlReader.MoveToElement();
        if (!xmlReader.IsEmptyElement)
        {
            int depth = xmlReader.Depth;
            xmlReader.Read();
            while (xmlReader.Depth > depth && xmlReader.NodeType != XmlNodeType.EndElement)
            {
                XmlNode xmlNode2 = xmlDocument.ReadNode(xmlReader);
                if (xmlNode2 == null)
                {
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlObjectSerializer.CreateSerializationException(System.SR.UnexpectedEndOfFile));
                }
                list.Add(xmlNode2);
            }
        }
        return list.ToArray();
    }
 
    private static bool IsValidAttribute(XmlReader xmlReader)
    {
        if (xmlReader.NamespaceURI != "http://schemas.microsoft.com/2003/10/Serialization/" && xmlReader.NamespaceURI != "http://www.w3.org/2001/XMLSchema-instance" && xmlReader.Prefix != "xmlns")
        {
            return xmlReader.LocalName != "xmlns";
        }
        return false;
    }
 
    public static void WriteNodes(XmlWriter xmlWriter, XmlNode?[]? nodes)
    {
        if (xmlWriter == null)
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("xmlWriter");
        }
        if (nodes == null)
        {
            return;
        }
        for (int i = 0; i < nodes.Length; i++)
        {
            if (nodes[i] != null)
            {
                nodes[i].WriteTo(xmlWriter);
            }
        }
    }
 
    public static void AddDefaultSchema(XmlSchemaSet schemas, XmlQualifiedName typeQName)
    {
        if (schemas == null)
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("schemas");
        }
        if (typeQName == null)
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("typeQName");
        }
        SchemaExporter.AddDefaultXmlType(schemas, typeQName.Name, typeQName.Namespace);
    }
}