public virtual string Format(LogSeverity severity, string payload, LoggingMeta meta, ILogger logger)
{
var stringBuilder = GetStringBuilder();
stringBuilder.Clear();
if (IncludeTimestampInMessage)
{
stringBuilder.AppendFormat("[{0}] ", DateTime.UtcNow.ToString("yyyy-MM-dd HH:mm:ss.fff"));
}
if (IncludeLoggerNameInMessage)
{
stringBuilder.AppendFormat("[{0}] ", logger.Name);
}
if (IncludeSeverityInMessage)
{
stringBuilder.Append($"[{severity}] ");
}
stringBuilder.Append(payload);
return(stringBuilder.ToString());
}
public override string Format(LogSeverity severity, string payload, LoggingMeta meta, ILogger logger)
{
string message = base.Format(severity, payload, meta, logger).Replace("\"", "\\\"").Replace("\n", "\\n");
var stringBuilder = GetStringBuilder();
stringBuilder.Clear();
stringBuilder.AppendFormat("{{\"severity\":\"{0}\",", severity);
stringBuilder.AppendFormat("\"message\":\"{0}\",", System.Web.HttpUtility.JavaScriptStringEncode(message, false));
stringBuilder.AppendFormat("\"timestamp\":\"{0}\",", DateTime.UtcNow.ToUniversalTime().ToString("yyyy-MM-dd'T'HH:mm:ss.ffffff000Z", DateTimeFormatInfo.InvariantInfo));
stringBuilder.AppendFormat("\"loggerName\":\"{0}\"", logger.Name);
if (meta.Count > 0)
{
stringBuilder.Append(",\"labels\":{");
bool first = true;
foreach (var metaPair in meta)
{
string value = null;
switch (metaPair.Value)
{
case DateTime dt:
value = string.Format("\"{0}\"", DateTime.UtcNow.ToUniversalTime().ToString("yyyy-MM-dd'T'HH:mm:ss.ffffff000Z", DateTimeFormatInfo.InvariantInfo));
break;
case sbyte _:
case byte _:
case short _:
case ushort _:
case int _:
case uint _:
case long _:
case ulong _:
value = metaPair.Value.ToString();
break;
case bool bl:
value = bl ? "true" : "false";
break;
case float f:
value = f.ToString(CultureInfo.InvariantCulture);
break;
case double d:
value = d.ToString(CultureInfo.InvariantCulture);
break;
default:
value = System.Web.HttpUtility.JavaScriptStringEncode(metaPair.Value.ToString(), true);
break;
}
if (!first)
{
stringBuilder.Append(",");
}
stringBuilder.AppendFormat("\"{0}\":{1}", System.Web.HttpUtility.JavaScriptStringEncode(metaPair.Key, false), value);
first = false;
}
stringBuilder.Append("}");
}
stringBuilder.Append("}");
return(stringBuilder.ToString());
}
