public ILogger CreateLogger(LoggerVerbosity defaultVerbosity)
{
string assemblyName = null;
string assemblyFile = null;
if (File.Exists(Assembly))
{
assemblyFile = Assembly;
}
else
{
assemblyName = Assembly;
}
var loggerDescription = new Microsoft.Build.Logging.LoggerDescription(
ClassName,
assemblyName,
assemblyFile,
Parameters,
Verbosity ?? defaultVerbosity);
var logger = loggerDescription.CreateLogger();
logger.Verbosity = Verbosity ?? defaultVerbosity;
if (loggerDescription.LoggerSwitchParameters != null)
{
logger.Parameters = loggerDescription.LoggerSwitchParameters;
}
return(logger);
}
/// <summary>
/// Loads a logger from its assembly, instantiates it, and handles errors.
/// </summary>
/// <returns>Instantiated logger.</returns>
private static ILogger CreateAndConfigureLogger
(
LoggerDescription loggerDescription,
LoggerVerbosity verbosity,
string unquotedParameter
)
{
ILogger logger = null;
try
{
logger = loggerDescription.CreateLogger();
if (logger == null)
{
InitializationException.VerifyThrow(logger != null, "LoggerNotFoundError", unquotedParameter);
}
}
catch (IOException e)
{
InitializationException.Throw("LoggerCreationError", unquotedParameter, e, false);
}
catch (BadImageFormatException e)
{
InitializationException.Throw("LoggerCreationError", unquotedParameter, e, false);
}
catch (SecurityException e)
{
InitializationException.Throw("LoggerCreationError", unquotedParameter, e, false);
}
catch (ReflectionTypeLoadException e)
{
InitializationException.Throw("LoggerCreationError", unquotedParameter, e, false);
}
catch (MemberAccessException e)
{
InitializationException.Throw("LoggerCreationError", unquotedParameter, e, false);
}
catch (TargetInvocationException e)
{
InitializationException.Throw("LoggerFatalError", unquotedParameter, e.InnerException, true);
}
// Configure the logger by setting the verbosity level and parameters
try
{
// set its verbosity level
logger.Verbosity = verbosity;
// set the logger parameters (if any)
if (loggerDescription.LoggerSwitchParameters != null)
{
logger.Parameters = loggerDescription.LoggerSwitchParameters;
}
}
catch (LoggerException)
{
// Logger failed politely during parameter/verbosity setting
throw;
}
catch (Exception e)
{
InitializationException.Throw("LoggerFatalError", unquotedParameter, e, true);
}
return logger;
}
