/// <summary>
/// Builds a <see cref="ILoggerFactoryAdapter"/> instance from the given <see cref="LogSetting"/>
/// using <see cref="Activator"/>.
/// </summary>
/// <param name="setting"></param>
/// <returns>the <see cref="ILoggerFactoryAdapter"/> instance. Is never <c>null</c></returns>
private static ILoggerFactoryAdapter BuildLoggerFactoryAdapterFromLogSettings(LogSetting setting)
{
ArgUtils.AssertNotNull("setting", setting);
// already ensured by LogSetting
// AssertArgIsAssignable<ILoggerFactoryAdapter>("setting.FactoryAdapterType", setting.FactoryAdapterType
// , "Specified FactoryAdapter does not implement {0}. Check implementation of class {1}"
// , typeof(ILoggerFactoryAdapter).FullName
// , setting.FactoryAdapterType.AssemblyQualifiedName);
ILoggerFactoryAdapter adapter = null;
ArgUtils.Guard(delegate
{
if (setting.Properties != null &&
setting.Properties.Count > 0)
{
object[] args = { setting.Properties };
adapter = (ILoggerFactoryAdapter)Activator.CreateInstance(setting.FactoryAdapterType, args);
}
else
{
adapter = (ILoggerFactoryAdapter)Activator.CreateInstance(setting.FactoryAdapterType);
}
}
, "Unable to create instance of type {0}. Possible explanation is lack of zero arg and single arg NameValueCollection constructors"
, setting.FactoryAdapterType.FullName
);
// make sure
ArgUtils.AssertNotNull("adapter", adapter, "Activator.CreateInstance() returned <null>");
return(adapter);
}
/// <summary>
/// Builds the logger factory adapter.
/// </summary>
/// <returns>a factory adapter instance. Is never <c>null</c>.</returns>
private static ILoggerFactoryAdapter BuildLoggerFactoryAdapter()
{
#if UNITY3D
ILoggerFactoryAdapter defaultFactory = new UnityDebugLoggerFactoryAdapter();
return(defaultFactory);
#else
object sectionResult = null;
ArgUtils.Guard(delegate
{
sectionResult = ConfigurationReader.GetSection(COMMON_LOGGING_SECTION);
}
, "Failed obtaining configuration for Common.Logging from configuration section 'common/logging'.");
// configuration reader returned <null>
if (sectionResult == null)
{
string message = (ConfigurationReader.GetType() == typeof(DefaultConfigurationReader))
? string.Format("no configuration section <{0}> found - suppressing logging output", COMMON_LOGGING_SECTION)
: string.Format("Custom ConfigurationReader '{0}' returned <null> - suppressing logging output", ConfigurationReader.GetType().FullName);
#if PORTABLE
Debug.WriteLine(message);
#else
Trace.WriteLine(message);
#endif
ILoggerFactoryAdapter defaultFactory = new NoOpLoggerFactoryAdapter();
return(defaultFactory);
}
// ready to use ILoggerFactoryAdapter?
if (sectionResult is ILoggerFactoryAdapter)
{
#if PORTABLE
Debug.WriteLine(string.Format("Using ILoggerFactoryAdapter returned from custom ConfigurationReader '{0}'", ConfigurationReader.GetType().FullName));
#else
Trace.WriteLine(string.Format("Using ILoggerFactoryAdapter returned from custom ConfigurationReader '{0}'", ConfigurationReader.GetType().FullName));
#endif
return((ILoggerFactoryAdapter)sectionResult);
}
// ensure what's left is a LogSetting instance
ArgUtils.Guard(delegate
{
ArgUtils.AssertIsAssignable <LogSetting>("sectionResult", sectionResult.GetType());
}
, "ConfigurationReader {0} returned unknown settings instance of type {1}"
, ConfigurationReader.GetType().FullName, sectionResult.GetType().FullName);
ILoggerFactoryAdapter adapter = null;
ArgUtils.Guard(delegate
{
adapter = BuildLoggerFactoryAdapterFromLogSettings((LogSetting)sectionResult);
}
, "Failed creating LoggerFactoryAdapter from settings");
return(adapter);
#endif
}