Widow – Rev 2
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using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
using System.Xml.Schema;
using System.Xml.Serialization;
namespace Widow.Serialization
{
public static class WindowsSerialization
{
#region Public Enums, Properties and Fields
/// <summary>
/// Cached XML serializer for the configuration.
/// </summary>
[XmlIgnore]
public static XmlSerializer XmlSerializer { get; } = new XmlSerializer(typeof(Windows.Windows));
#endregion
#region Public Methods
public static async Task<SerializationState> Deserialize(string file)
{
var validationEventArgs = new List<ValidationEventArgs>();
void XmlReaderSettingsValidationEventHandler(object sender, ValidationEventArgs e)
{
validationEventArgs.Add(e);
}
Windows.Windows windows;
var settings = new XmlReaderSettings();
try
{
settings.Async = true;
settings.DtdProcessing = DtdProcessing.Parse;
settings.ValidationType = ValidationType.Schema;
settings.ValidationFlags = XmlSchemaValidationFlags.ProcessInlineSchema |
XmlSchemaValidationFlags.ProcessSchemaLocation |
XmlSchemaValidationFlags.ReportValidationWarnings |
XmlSchemaValidationFlags.ProcessIdentityConstraints;
settings.Schemas = new XmlSchemaSet();
settings.ValidationEventHandler += XmlReaderSettingsValidationEventHandler;
settings.Schemas.Add("urn:widow-windows-schema", "Windows.xsd");
using (var fileStream =
new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
using (var xmlReader = XmlReader.Create(fileStream,
settings))
{
var stringBuilder = new StringBuilder();
using (var stringWriter = new StringWriter(stringBuilder))
{
while (await xmlReader.ReadAsync())
{
await stringWriter.WriteAsync(await xmlReader.ReadOuterXmlAsync());
}
}
using (var stringReader = new StringReader(stringBuilder.ToString()))
{
windows =
(Windows.Windows) XmlSerializer
.Deserialize(stringReader);
}
}
}
}
catch (Exception ex)
{
return new SerializationFailure(ex, validationEventArgs);
}
finally
{
settings.ValidationEventHandler -=
XmlReaderSettingsValidationEventHandler;
}
return new SerializationSuccess(windows, validationEventArgs);
}
public static async Task<SerializationState> Serialize(Windows.Windows windows, string file)
{
try
{
using (var memoryStream = new MemoryStream())
{
using (var xmlWriter =
XmlWriter.Create(memoryStream,
new XmlWriterSettings
{
Async = true,
Indent = true,
IndentChars = " ",
OmitXmlDeclaration = false
}))
{
await xmlWriter.WriteDocTypeAsync("Windows",
null,
null,
"<!ATTLIST Windows xmlns:xsi CDATA #IMPLIED xsi:noNamespaceSchemaLocation CDATA #IMPLIED>");
XmlSerializer.Serialize(xmlWriter, windows);
using (var fileStream =
new FileStream(file, FileMode.Create, FileAccess.Write, FileShare.ReadWrite))
{
memoryStream.Position = 0L;
await memoryStream.CopyToAsync(fileStream);
}
}
}
}
catch (Exception ex)
{
return new SerializationFailure(ex);
}
return new SerializationSuccess();
}
public static async Task<SerializationState> Serialize(Windows.Windows windows,
MemoryStream outputStream)
{
try
{
using (var memoryStream = new MemoryStream())
{
using (var xmlWriter =
XmlWriter.Create(memoryStream,
new XmlWriterSettings
{
Async = true,
Indent = true,
IndentChars = " ",
OmitXmlDeclaration = false
}))
{
await xmlWriter.WriteDocTypeAsync("Windows",
null,
null,
"<!ATTLIST Windows xmlns:xsi CDATA #IMPLIED xsi:noNamespaceSchemaLocation CDATA #IMPLIED>");
XmlSerializer.Serialize(xmlWriter, windows);
memoryStream.Position = 0L;
await memoryStream.CopyToAsync(outputStream);
}
}
}
catch (Exception ex)
{
return new SerializationFailure(ex);
}
return new SerializationSuccess();
}
#endregion
}
}
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