/// <summary>
/// Creates an instance of <see cref="ConsoleLoggerProvider"/>.
/// </summary>
/// <param name="options">The options to create <see cref="ConsoleLogger"/> instances with.</param>
/// <param name="formatters">Log formatters added for <see cref="ConsoleLogger"/> insteaces.</param>
public ConsoleLoggerProvider(IOptionsMonitor <ConsoleLoggerOptions> options, IEnumerable <ConsoleFormatter>?formatters)
{
_options = options;
_loggers = new ConcurrentDictionary <string, ConsoleLogger>();
SetFormatters(formatters);
IConsole?console;
IConsole?errorConsole;
if (DoesConsoleSupportAnsi())
{
console = new AnsiLogConsole();
errorConsole = new AnsiLogConsole(stdErr: true);
}
else
{
console = new AnsiParsingLogConsole();
errorConsole = new AnsiParsingLogConsole(stdErr: true);
}
_messageQueue = new ConsoleLoggerProcessor(
console,
errorConsole,
options.CurrentValue.QueueFullMode,
options.CurrentValue.MaxQueueLength);
ReloadLoggerOptions(options.CurrentValue);
_optionsReloadToken = _options.OnChange(ReloadLoggerOptions);
}
public ConsoleLogger(string name, Func <string, LogLevel, bool> filter, bool includeScopes)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
Name = name;
Filter = filter ?? ((category, logLevel) => true);
IncludeScopes = includeScopes;
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
Console = new WindowsLogConsole();
}
else
{
Console = new AnsiLogConsole(new AnsiSystemConsole());
}
}
public ConsoleLogger(string name, Func <string, LogLevel, bool> filter, bool includeScopes)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
Name = name;
Filter = filter ?? ((category, logLevel) => true);
IncludeScopes = includeScopes;
if (PlatformServices.Default.Runtime.OperatingSystem.Equals("Windows", StringComparison.OrdinalIgnoreCase))
{
Console = new WindowsLogConsole();
}
else
{
Console = new AnsiLogConsole(new AnsiSystemConsole());
}
}
internal ConsoleLogger(string name, Func <string, LogLevel, bool> filter, IExternalScopeProvider scopeProvider, ConsoleLoggerProcessor loggerProcessor)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
Name = name;
Filter = filter ?? ((category, logLevel) => true);//filter为null时直接返回true，即不进行过滤
ScopeProvider = scopeProvider;
_queueProcessor = loggerProcessor;
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
Console = new WindowsLogConsole();//*********************************在这里实例化一个Windows平台的System.Console ！******************
}
else
{
Console = new AnsiLogConsole(new AnsiSystemConsole());
}
}
internal ConsoleLogger(string name, Func <string, LogLevel, bool> filter, IExternalScopeProvider scopeProvider, ConsoleLoggerProcessor loggerProcessor)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
Name = name;
Filter = filter ?? ((category, logLevel) => true);
ScopeProvider = scopeProvider;
LogToStandardErrorThreshold = LogLevel.None;
_queueProcessor = loggerProcessor;
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
Console = new WindowsLogConsole();
ErrorConsole = new WindowsLogConsole(stdErr: true);
}
else
{
Console = new AnsiLogConsole(new AnsiSystemConsole());
ErrorConsole = new AnsiLogConsole(new AnsiSystemConsole(stdErr: true));
}
}