/// <summary>
/// Initializes <see cref="W3CLoggingMiddleware" />.
/// </summary>
/// <param name="next"></param>
/// <param name="options"></param>
/// <param name="w3cLogger"></param>
public W3CLoggingMiddleware(RequestDelegate next, IOptionsMonitor <W3CLoggerOptions> options, W3CLogger w3cLogger)
{
if (next == null)
{
throw new ArgumentNullException(nameof(next));
}
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
if (w3cLogger == null)
{
throw new ArgumentNullException(nameof(w3cLogger));
}
_next = next;
_options = options;
_w3cLogger = w3cLogger;
_additionalRequestHeaders = W3CLoggerOptions.FilterRequestHeaders(options.CurrentValue);
}
public FileLoggerProcessor(IOptionsMonitor <W3CLoggerOptions> options, IHostEnvironment environment, ILoggerFactory factory)
{
_logger = factory.CreateLogger(typeof(FileLoggerProcessor));
_options = options;
var loggerOptions = _options.CurrentValue;
_path = loggerOptions.LogDirectory;
// If user supplies no LogDirectory, default to {ContentRoot}/logs.
// If user supplies a relative path, use {ContentRoot}/{LogDirectory}.
// If user supplies a full path, use that.
if (string.IsNullOrEmpty(_path))
{
_path = Path.Join(environment.ContentRootPath, "logs");
}
else if (!Path.IsPathRooted(_path))
{
_path = Path.Join(environment.ContentRootPath, _path);
}
_fileName = loggerOptions.FileName;
_maxFileSize = loggerOptions.FileSizeLimit;
_maxRetainedFiles = loggerOptions.RetainedFileCountLimit;
_flushInterval = loggerOptions.FlushInterval;
_fields = loggerOptions.LoggingFields;
_additionalHeaders = W3CLoggerOptions.FilterRequestHeaders(loggerOptions);
_options.OnChange(options =>
{
lock (_pathLock)
{
// Clear the cached settings.
loggerOptions = options;
// Move to a new file if the fields have changed
if (_fields != loggerOptions.LoggingFields || !_additionalHeaders.SetEquals(loggerOptions.AdditionalRequestHeaders))
{
_fileNumber++;
if (_fileNumber >= W3CLoggerOptions.MaxFileCount)
{
_maxFilesReached = true;
Log.MaxFilesReached(_logger);
}
_fields = loggerOptions.LoggingFields;
_additionalHeaders = W3CLoggerOptions.FilterRequestHeaders(loggerOptions);
}
if (!string.IsNullOrEmpty(loggerOptions.LogDirectory))
{
_path = loggerOptions.LogDirectory;
}
_fileName = loggerOptions.FileName;
_maxFileSize = loggerOptions.FileSizeLimit;
_maxRetainedFiles = loggerOptions.RetainedFileCountLimit;
_flushInterval = loggerOptions.FlushInterval;
}
});
_today = SystemDateTime.Now;
// Start message queue processor
_cancellationTokenSource = new CancellationTokenSource();
_outputTask = Task.Run(ProcessLogQueue);
}
public W3CLoggerProcessor(IOptionsMonitor <W3CLoggerOptions> options, IHostEnvironment environment, ILoggerFactory factory) : base(options, environment, factory)
{
_loggingFields = options.CurrentValue.LoggingFields;
_additionalRequestHeaders = W3CLoggerOptions.FilterRequestHeaders(options.CurrentValue);
}