private static object ExtractValue(object pairs, PropertyInfo property, bool lowerKey, int depth)
{
var value = property.GetValue(pairs, null);
if (value == null || IsPrimitive(value))
{
return(SplunkLogFormatter.FormatValue(value));
}
if (value is IEnumerable)
{
return(ExtractArray((IEnumerable)value, lowerKey, depth + 1));
}
var buf = new StringBuilder("{");
return(buf.Append(ForLogging(value, lowerKey, depth + 1)).Append('}').ToString());
}
/// <summary>
/// Takes an anonymous object and converts the properties to the logging format.
/// </summary>
/// <param name="pairs">An object with property-value pairs.</param>
/// <param name="lowerKey">Should the key string be lower cased.</param>
/// <param name="depth">
/// The object traversal depth for this call, since this is a recursive function. Ensures we only log up to MaxDepth
/// levels before stopping reflection goodness.
/// </param>
/// <returns>
/// e.g.
/// ForLogging(new {FullName = "Jim", IsCow = false});
/// fullname="Jim", iscow="false"
/// </returns>
/// <see>VTGWEB-577</see>
public static string ForLogging(object pairs, bool lowerKey = true, int depth = 0)
{
// bail if we have reached the max recursion depth
if (depth >= MaxDepth)
{
return
("log_error=The object being logged contains too much complexity. Please rethink the purpose of this log message and simplify what is being logged.");
}
if (pairs == null)
{
return(string.Empty);
}
if (pairs is string)
{
return((string)pairs);
}
if (IsPrimitive(pairs))
{
return(SplunkLogFormatter.FormatValue(pairs).ToString());
}
var strings = new List <string>();
var type = pairs.GetType();
foreach (var property in type.GetProperties())
{
var key = property.Name;
if (lowerKey)
{
key = key.ToLower();
}
var value = ExtractValue(pairs, property, lowerKey, depth);
var pair = string.Format("{0}={1}", key, value);
strings.Add(pair);
}
return(string.Join(", ", strings));
}
/// <summary>
/// Takes an anonymous object and converts the properties to the logging format.
/// </summary>
/// <param name="pairs">An object with property-value pairs.</param>
/// <param name="lowerKey">Should the key string be lower cased.</param>
/// <returns>
/// e.g.
/// ForLogging(new {FullName = "Jim", IsCow = false});
/// fullname="Jim", iscow="false"
/// </returns>
/// <see>VTGWEB-577</see>
public static string LogDictionary(IDictionary <string, object> pairs, bool lowerKey = true)
{
if (pairs == null)
{
return(string.Empty);
}
var strings = new List <string>();
foreach (var item in pairs)
{
var key = item.Key;
if (lowerKey)
{
key = key.ToLower();
}
var value = SplunkLogFormatter.FormatValue(item.Value);
var pair = string.Format("{0}={1}", key, value);
strings.Add(pair);
}
return(string.Join(", ", strings));
}