/// <summary>
/// Creates a custom formatter for the specified members.
/// </summary>
private static Action <T, TextWriter> CreateCustom(MemberInfo[] forMembers)
{
var accessors = forMembers.GetMemberAccessors <T>();
if (isException)
{
// filter out internal values from the Data dictionary, since they're intended to be surfaced in other ways
var dataAccessor = accessors.SingleOrDefault(a => a.MemberName == "Data");
if (dataAccessor != null)
{
var originalGetData = dataAccessor.GetValue;
dataAccessor.GetValue = e => ((IDictionary)originalGetData(e))
.Cast <DictionaryEntry>()
.Where(de => !de.Key.ToString().StartsWith(ExceptionExtensions.ExceptionDataPrefix))
.ToDictionary(de => de.Key, de => de.Value);
}
// replace the default stack trace with the full stack trace when present
var stackTraceAccessor = accessors.SingleOrDefault(a => a.MemberName == "StackTrace");
if (stackTraceAccessor != null)
{
stackTraceAccessor.GetValue = e =>
{
var ex = e as Exception;
if (ex.Data.Contains(ExceptionExtensions.FullStackTraceKey))
{
return(ex.Data[ExceptionExtensions.FullStackTraceKey]);
}
return(ex.StackTrace);
};
}
}
return((target, writer) =>
{
Formatter.TextFormatter.WriteStartObject(writer);
if (writeHeader)
{
var entry = target as LogEntry;
if (entry != null)
{
Formatter.TextFormatter.WriteLogEntryHeader(entry, writer);
}
else
{
Formatter <Type> .Format(typeof(T), writer);
}
Formatter.TextFormatter.WriteEndHeader(writer);
}
for (var i = 0; i < accessors.Length; i++)
{
try
{
var accessor = accessors[i];
if (accessor.Ignore)
{
continue;
}
object value = accessor.GetValue(target);
if (accessor.SkipOnNull && value == null)
{
continue;
}
Formatter.TextFormatter.WriteStartProperty(writer);
writer.Write(accessor.MemberName);
Formatter.TextFormatter.WriteNameValueDelimiter(writer);
value.FormatTo(writer);
Formatter.TextFormatter.WriteEndProperty(writer);
if (i < accessors.Length - 1)
{
Formatter.TextFormatter.WritePropertyDelimiter(writer);
}
}
catch (Exception ex)
{
ex.RaiseErrorEvent();
if (ex.ShouldThrow())
{
throw;
}
}
}
Formatter.TextFormatter.WriteEndObject(writer);
});
}
/// <summary>
/// Returns a <see cref="T:System.String"/> that represents the current <see cref="T:System.Object"/>.
/// </summary>
/// <returns>
/// A <see cref="T:System.String"/> that represents the current <see cref="T:System.Object"/>.
/// </returns>
public override string ToString()
{
return(Formatter <LogEntry> .Format(this));
}