/// <summary>Build a JSON entry from the parameters.</summary>
/// <remarks>Build a JSON entry from the parameters. This is public for testing.</remarks>
/// <param name="writer">destination</param>
/// <param name="loggerName">logger name</param>
/// <param name="timeStamp">time_t value</param>
/// <param name="level">level string</param>
/// <param name="threadName">name of the thread</param>
/// <param name="message">rendered message</param>
/// <param name="ti">nullable thrown information</param>
/// <returns>the writer</returns>
/// <exception cref="System.IO.IOException">on any problem</exception>
public virtual TextWriter ToJson(TextWriter writer, string loggerName, long timeStamp
, string level, string threadName, string message, ThrowableInformation ti)
{
JsonGenerator json = factory.CreateJsonGenerator(writer);
json.WriteStartObject();
json.WriteStringField(Name, loggerName);
json.WriteNumberField(Time, timeStamp);
DateTime date = Extensions.CreateDate(timeStamp);
json.WriteStringField(Date, dateFormat.Format(date));
json.WriteStringField(Level, level);
json.WriteStringField(Thread, threadName);
json.WriteStringField(Message, message);
if (ti != null)
{
//there is some throwable info, but if the log event has been sent over the wire,
//there may not be a throwable inside it, just a summary.
Exception thrown = ti.GetThrowable();
string eclass = (thrown != null) ? thrown.GetType().FullName : string.Empty;
json.WriteStringField(ExceptionClass, eclass);
string[] stackTrace = ti.GetThrowableStrRep();
json.WriteArrayFieldStart(Stack);
foreach (string row in stackTrace)
{
json.WriteString(row);
}
json.WriteEndArray();
}
json.WriteEndObject();
json.Flush();
json.Close();
return(writer);
}
/// <summary>Writes a JSON number field only if the value is defined.</summary>
/// <param name="json">JsonGenerator to receive output</param>
/// <param name="key">String key to put</param>
/// <param name="value">long value to put</param>
/// <exception cref="System.IO.IOException">if there is an I/O error</exception>
private static void WriteNumberFieldIfDefined(JsonGenerator json, string key, long
value)
{
if (value != long.MinValue)
{
json.WriteNumberField(key, value);
}
}