public void Write(LogEventLevel level, Exception exception, string messageTemplate, params object[] propertyValues)
{
if (messageTemplate == null)
{
return;
}
if (!IsEnabled(level))
{
return;
}
// Catch a common pitfall when a single non-object array is cast to object[]
// Needs some more thought
if (propertyValues != null &&
propertyValues.GetType() != typeof(object[]))
{
propertyValues = new object[] { propertyValues }
}
;
var now = DateTimeOffset.Now;
MessageTemplate parsedTemplate;
IEnumerable <LogEventProperty> properties;
_messageTemplateProcessor.Process(messageTemplate, propertyValues, out parsedTemplate, out properties);
var logEvent = new LogEvent(now, level, exception, parsedTemplate, properties);
Dispatch(logEvent);
}
/// <summary>
/// Uses configured scalar conversion and destructuring rules to bind a set of properties to a
/// message template. Returns false if the template or values are invalid (<summary>Logger</summary>
/// methods never throw exceptions).
/// </summary>
/// <param name="messageTemplate">Message template describing an event.</param>
/// <param name="propertyValues">Objects positionally formatted into the message template.</param>
/// <param name="parsedTemplate">The internal representation of the template, which may be used to
/// render the <paramref name="boundProperties"/> as text.</param>
/// <param name="boundProperties">Captured properties from the template and <paramref name="propertyValues"/>.</param>
/// <example>
/// MessageTemplate template;
/// IEnumerable<LogEventProperty> properties>;
/// if (Log.BindMessageTemplate("Hello, {Name}!", new[] { "World" }, out template, out properties)
/// {
/// var propsByName = properties.ToDictionary(p => p.Name, p => p.Value);
/// Console.WriteLine(template.Render(propsByName, null));
/// // -> "Hello, World!"
/// }
/// </example>
public bool BindMessageTemplate(string messageTemplate, object[] propertyValues, out MessageTemplate parsedTemplate, out IEnumerable <LogEventProperty> boundProperties)
{
if (messageTemplate == null)
{
parsedTemplate = null;
boundProperties = null;
return(false);
}
_messageTemplateProcessor.Process(messageTemplate, propertyValues, out parsedTemplate, out boundProperties);
return(true);
}
