/// <summary>
/// Stamp the event.
/// </summary>
/// <param name="loggingEvent">event to stamp</param>
public virtual void StampEvent(Core.LoggingEvent loggingEvent)
{
var value = GetValue(loggingEvent);
value = GetSanitizedValue(loggingEvent, value);
SetStamp(loggingEvent, Name, value);
}
/// <summary>
/// The NestedLayout is tried to provide a value
/// </summary>
/// <param name="loggingEvent">the event to get value from</param>
/// <param name="obj">value found</param>
/// <returns>success of finding a NestedLayout not null</returns>
protected virtual bool GetLayoutValue(Core.LoggingEvent loggingEvent, out object obj)
{
var layout = Option as IRawLayout;
try
{
if (layout != null)
{
obj = layout.Format(loggingEvent);
return(true);
}
else
{
obj = null;
return(false);
}
}
catch (Exception x)
{
#if LOG4NET_1_2_10_COMPATIBLE
LogLog.Error("Error getting value from NestedLayout", x);
#else
LogLog.Error(GetType(), "Error getting value from NestedLayout", x);
#endif
obj = null;
return(false);
}
}
/// <summary>
/// Try to get a property value with exact match
/// </summary>
/// <param name="loggingEvent">the event to get value from</param>
/// <param name="obj">value found</param>
/// <returns>success of matching a known value</returns>
protected virtual bool GetPropertyValue(Core.LoggingEvent loggingEvent, out object obj)
{
var name = Option as string ?? Name;
obj = loggingEvent.LookupProperty(name);
return(obj != null);
}
/// <summary>
/// If a value cannot be retrieved from the separate NestedLayout object
/// a set of known vallues would be tried. If that fails too, UndefinedValue is returned.
/// </summary>
/// <param name="loggingEvent">the event to get values for/from</param>
/// <returns>Object retrieved from logging event</returns>
public virtual object Format(Core.LoggingEvent loggingEvent)
{
object obj;
return(GetLayoutValue(loggingEvent, out obj) ||
GetPropertyValue(loggingEvent, out obj) ||
GetDefaultValue(loggingEvent, out obj)
? obj
: Option ?? Name
);
}
public void DoAppend(Core.LoggingEvent loggingEvent)
{
Events.Add(loggingEvent);
var layout = Layout;
var writer = new StringWriter();
if (layout != null)
{
layout.Format(writer, loggingEvent);
}
else
{
loggingEvent.WriteRenderedMessage(writer);
}
EventStrings.Add(writer.ToString());
}
/// <summary>
/// Create stamp value
/// </summary>
/// <param name="loggingEvent">event to stamp</param>
/// <returns>value to set as a stamp</returns>
protected virtual Object GetValue(Core.LoggingEvent loggingEvent)
{
var tSys = GetTimeStampValue(AgeReference.Epoch1970, AgeReference.SystemStart, 0, false);
var tApp = GetTimeStampValue(AgeReference.SystemStart, AgeReference.ApplicationStart, 0, false);
var tNow = GetTimeStampValue(AgeReference.ApplicationStart, AgeReference.Now, 0, false);
var seq = GetSequence();
var pid = GetProcessId();
return(String.Format(
"{0};{1};{2};{3};{4};{5}"
, _env.GetMachineName()
, tSys
, tApp
, tNow
, pid
, seq
));
}
/// <summary>
/// Add a log event to the ElasticSearch Repo
/// </summary>
/// <param name="loggingEvent"></param>
protected override void Append(Core.LoggingEvent loggingEvent)
{
if (string.IsNullOrEmpty(ConnectionString))
{
var exception = new InvalidOperationException("Connection string not present.");
ErrorHandler.Error("Connection string not included in appender.", exception, ErrorCode.GenericFailure);
return;
}
var settings = ConnectionBuilder.BuildElsticSearchConnection(ConnectionString);
var client = new LogClient(settings);
var logEvent = CreateLogEvent(loggingEvent);
try
{
client.CreateEvent(logEvent);
}
catch (InvalidOperationException ex)
{
ErrorHandler.Error("Invalid connection to ElasticSearch", ex, ErrorCode.GenericFailure);
}
}
/// <summary>
/// Make sure the value will not change later
/// </summary>
/// <param name="loggingEvent"></param>
/// <param name="value"></param>
/// <returns></returns>
protected virtual Object GetSanitizedValue(Core.LoggingEvent loggingEvent, Object value)
{
if (value == null)
{
return(null);
}
if (value is IFixingRequired)
{
value = ((IFixingRequired)value).GetFixedObject();
}
if (value == null)
{
return(null);
}
if (!(value is string || value.GetType().GetTypeInfo().IsPrimitive))
{
value = loggingEvent.Repository.RendererMap.FindAndRender(value);
}
return(value);
}
/// <summary>
/// Create stamp value - the <see cref="Value"/>
/// </summary>
/// <param name="loggingEvent">event to stamp</param>
/// <returns>value to set as a stamp</returns>
protected override object GetValue(Core.LoggingEvent loggingEvent)
{
return(Value);
}
/// <summary>
/// Create stamp value - thread-safe statically incremented sequence number
/// </summary>
/// <param name="loggingEvent">event to stamp</param>
/// <returns>value to set as a stamp</returns>
protected override object GetValue(Core.LoggingEvent loggingEvent)
{
return(GetSequence());
}
/// <summary>
/// The NestedLayout is tried to provide a value
/// </summary>
/// <param name="loggingEvent">the event to get value from</param>
/// <param name="obj">value found</param>
/// <returns>success of finding a NestedLayout not null</returns>
protected virtual bool GetDefaultValue(Core.LoggingEvent loggingEvent, out object obj)
{
obj = Option;
return(true);
}
public override void Format(System.IO.TextWriter writer, Core.LoggingEvent loggingEvent)
{
loggingEvent.Fix = Core.FixFlags.All;
writer.WriteLine(Newtonsoft.Json.JsonConvert.SerializeObject(loggingEvent));
}
/// <summary>
/// Store the stamp value in a property of the logging event
/// </summary>
/// <param name="loggingEvent">event to stamp</param>
/// <param name="name">name of the stamp</param>
/// <param name="value">stamp value</param>
protected virtual void SetStamp(Core.LoggingEvent loggingEvent, string name, Object value)
{
loggingEvent.Properties[name] = value;
}
/// <summary>
/// Create stamp value - a time value calculated from the props
/// </summary>
/// <param name="loggingEvent">event to stamp</param>
/// <returns>value to set as a stamp</returns>
protected override object GetValue(Core.LoggingEvent loggingEvent)
{
return(GetTimeStampValue(TimeFrom, TimeTo, Multiplier, Round));
}
/// <summary>
/// Create stamp value - process id
/// </summary>
/// <param name="loggingEvent">event to stamp</param>
/// <returns>value to set as a stamp</returns>
protected override object GetValue(Core.LoggingEvent loggingEvent)
{
return(GetProcessId());
}
