/
XmlLayout.cs
107 lines (96 loc) · 3.86 KB
/
XmlLayout.cs
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using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Text;
using System.Xml;
using NLog.LayoutRenderers;
namespace NLog.XmlLayout
{
[LayoutRenderer("xml")]
public class XmlLayoutRenderer : LayoutRenderer
{
private string elementName;
public string ElementName
{
get { return elementName; }
set { elementName = value; }
}
protected override void Append(StringBuilder builder, LogEventInfo logEvent)
{
using (StringWriter stringWriter = new UTF8StringWriter(builder))
using (XmlTextWriter writer = new XmlTextWriter(stringWriter))
{
writer.Formatting = Formatting.Indented;
// Create the eventNode element
writer.WriteStartElement((elementName == null ? logEvent.Level.ToString() : elementName));
if (elementName != null)
{
WriteToAttribute(writer, "type", logEvent.Level.ToString());
}
WriteToAttribute(writer, "time", logEvent.TimeStamp.ToString("M/d/yyyy HH:mm:ss tt"));
writer.WriteStartElement("Message");
writer.WriteString(logEvent.Message);
writer.WriteEndElement();
if (logEvent.Parameters != null)
{
foreach (object obj in logEvent.Parameters)
{
writer.WriteStartElement("Parameter");
if (obj is KeyValuePair<string, string>)
{
KeyValuePair<string, string> p = (KeyValuePair<string, string>)obj;
WriteToAttribute(writer, "name", p.Key);
WriteToAttribute(writer, "value", p.Value);
}
else if (obj is Exception)
{
Exception ex = obj as Exception;
string msg = ex.GetType().ToString() + ex.StackTrace;
WriteToAttribute(writer, "value", msg);
}
else
{
WriteToAttribute(writer, "value", obj.ToString());
}
writer.WriteEndElement();
}
}
if (logEvent.Exception != null)
{
Serialization.SerializeException(logEvent.Exception, writer);
}
writer.WriteEndElement();
stringWriter.Flush();
}
}
internal static void WriteToAttribute(XmlTextWriter writer, string attribute, string value)
{
WriteToAttribute(writer, attribute, value, false);
}
internal static void WriteToAttribute(XmlTextWriter writer, string attribute, DateTime value)
{
WriteToAttribute(writer, attribute, value.ToString(DateTimeFormatInfo.InvariantInfo.ShortDatePattern + " " + DateTimeFormatInfo.InvariantInfo.ShortTimePattern), false);
}
internal static void WriteToAttribute(XmlTextWriter writer, string attribute, string value, bool writeIfEmptyValue)
{
if (writeIfEmptyValue || !string.IsNullOrEmpty(value))
writer.WriteAttributeString(attribute, value);
}
}
public class UTF8StringWriter : StringWriter
{
public UTF8StringWriter()
: base()
{
}
public UTF8StringWriter(StringBuilder sb)
: base(sb)
{
}
public override Encoding Encoding
{
get { return Encoding.UTF8; }
}
}
}