/// <summary>
/// Initializes a new instance of the <see cref="EventLogLogger"/> class.
/// </summary>
/// <param name="name">The name of the logger.</param>
/// <param name="settings">The <see cref="EventLogSettings"/>.</param>
/// <param name="externalScopeProvider">The <see cref="IExternalScopeProvider"/>.</param>
public EventLogLogger(string name, EventLogSettings settings, IExternalScopeProvider externalScopeProvider)
{
_name = string.IsNullOrEmpty(name) ? nameof(EventLogLogger) : name;
_settings = settings;
_externalScopeProvider = externalScopeProvider;
var logName = string.IsNullOrEmpty(settings.LogName) ? "Application" : settings.LogName;
var sourceName = string.IsNullOrEmpty(settings.SourceName) ? "Application" : settings.SourceName;
var machineName = string.IsNullOrEmpty(settings.MachineName) ? "." : settings.MachineName;
// Due to the following reasons, we cannot have these checks either here or in IsEnabled method:
// 1. Log name & source name existence check only works on local computer.
// 2. Source name existence check requires Administrative privileges.
EventLog = settings.EventLog ?? new WindowsEventLog(logName, machineName, sourceName);
// Examples:
// 1. An error occu...
// 2. ...esponse stream
_beginOrEndMessageSegmentSize = EventLog.MaxMessageSize - ContinuationString.Length;
// Example:
// ...rred while writ...
_intermediateMessageSegmentSize = EventLog.MaxMessageSize - 2 * ContinuationString.Length;
}
public void Configure(IApplicationBuilder app, ILoggerFactory loggerFactory)
{
loggerFactory.MinimumLevel = LogLevel.Debug;
var settings = new EventLogSettings
{
SourceName = "Log App",
Filter = (source, level) => level >= LogLevel.Information
};
loggerFactory.AddEventLog(settings);
app.UseIISPlatformHandler();
app.Run(async context =>
{
var myClass = context.RequestServices.GetService<MyClass>();
myClass.DoSomething(1);
myClass.DoSomething(20);
myClass.DoSomething(-20);
await context.Response.WriteAsync("Hello World!");
});
}
/// <summary>
/// Initializes a new instance of the <see cref="EventLogLogger"/> class.
/// </summary>
/// <param name="name">The name of the logger.</param>
/// <param name="settings">The <see cref="EventLogSettings"/>.</param>
public EventLogLogger(string name, EventLogSettings settings)
{
_name = string.IsNullOrEmpty(name) ? nameof(EventLogLogger) : name;
_settings = settings;
var logName = string.IsNullOrEmpty(settings.LogName) ? "Application" : settings.LogName;
var sourceName = string.IsNullOrEmpty(settings.SourceName) ? "Application" : settings.SourceName;
var machineName = string.IsNullOrEmpty(settings.MachineName) ? "." : settings.MachineName;
// Due to the following reasons, we cannot have these checks either here or in IsEnabled method:
// 1. Log name & source name existence check only works on local computer.
// 2. Source name existence check requires Administrative privileges.
_eventLog = new System.Diagnostics.EventLog(logName, machineName, sourceName);
}
/// <summary>
/// Initializes a new instance of the <see cref="EventLogLogger"/> class.
/// </summary>
/// <param name="name">The name of the logger.</param>
/// <param name="settings">The <see cref="EventLogSettings"/>.</param>
public EventLogLogger(string name, EventLogSettings settings)
{
_name = string.IsNullOrEmpty(name) ? nameof(EventLogLogger) : name;
_settings = settings;
var logName = string.IsNullOrEmpty(settings.LogName) ? "Application" : settings.LogName;
var sourceName = string.IsNullOrEmpty(settings.SourceName) ? "Application" : settings.SourceName;
var machineName = string.IsNullOrEmpty(settings.MachineName) ? "." : settings.MachineName;
// Due to the following reasons, we cannot have these checks either here or in IsEnabled method:
// 1. Log name & source name existence check only works on local computer.
// 2. Source name existence check requires Administrative privileges.
_eventLog = new System.Diagnostics.EventLog(logName, machineName, sourceName);
}
/// <summary>
/// Initializes a new instance of the <see cref="EventLogLogger"/> class.
/// </summary>
/// <param name="name">The name of the logger.</param>
/// <param name="settings">The <see cref="EventLogSettings"/>.</param>
/// <param name="externalScopeProvider">The <see cref="IExternalScopeProvider"/>.</param>
public EventLogLogger(string name, EventLogSettings settings, IExternalScopeProvider externalScopeProvider)
{
_name = name ?? throw new ArgumentNullException(nameof(name));
_settings = settings ?? throw new ArgumentNullException(nameof(settings));
_externalScopeProvider = externalScopeProvider;
EventLog = settings.EventLog;
// Examples:
// 1. An error occu...
// 2. ...esponse stream
_beginOrEndMessageSegmentSize = EventLog.MaxMessageSize - ContinuationString.Length;
// Example:
// ...rred while writ...
_intermediateMessageSegmentSize = EventLog.MaxMessageSize - 2 * ContinuationString.Length;
}
/// <summary>
/// Adds an event logger that is enabled for <see cref="LogLevel"/>s of minLevel or higher.
/// </summary>
/// <param name="factory">The extension method argument.</param>
/// <param name="settings">The <see cref="EventLogSettings"/>.</param>
public static ILoggerFactory AddEventLog(
this ILoggerFactory factory,
EventLogSettings settings)
{
if (factory == null)
{
throw new ArgumentNullException(nameof(factory));
}
if (settings == null)
{
throw new ArgumentNullException(nameof(settings));
}
factory.AddProvider(new EventLogLoggerProvider(settings));
return factory;
}
/// <summary>
/// Initializes a new instance of the <see cref="EventLogLogger"/> class.
/// </summary>
/// <param name="name">The name of the logger.</param>
/// <param name="settings">The <see cref="EventLogSettings"/>.</param>
/// <param name="externalScopeProvider">The <see cref="IExternalScopeProvider"/>.</param>
public EventLogLogger(string name, EventLogSettings settings, IExternalScopeProvider?externalScopeProvider)
{
ThrowHelper.ThrowIfNull(name);
ThrowHelper.ThrowIfNull(settings);
_name = name;
_settings = settings;
_externalScopeProvider = externalScopeProvider;
EventLog = settings.EventLog;
// Examples:
// 1. An error occu...
// 2. ...esponse stream
_beginOrEndMessageSegmentSize = EventLog.MaxMessageSize - ContinuationString.Length;
// Example:
// ...rred while writ...
_intermediateMessageSegmentSize = EventLog.MaxMessageSize - 2 * ContinuationString.Length;
}
/// <summary>
/// Initializes a new instance of the <see cref="EventLogLoggerProvider"/> class.
/// </summary>
/// <param name="settings">The <see cref="EventLogSettings"/>.</param>
public EventLogLoggerProvider(EventLogSettings settings)
{
_settings = settings;
}
/// <summary>
/// Initializes a new instance of the <see cref="EventLogLoggerProvider"/> class.
/// </summary>
/// <param name="settings">The <see cref="EventLogSettings"/>.</param>
public EventLogLoggerProvider(EventLogSettings settings)
{
_settings = settings ?? new EventLogSettings();
}
/// <summary>
/// Initializes a new instance of the <see cref="EventLogLogger"/> class.
/// </summary>
/// <param name="name">The name of the logger.</param>
/// <param name="settings">The <see cref="EventLogSettings"/>.</param>
public EventLogLogger(string name, EventLogSettings settings)
: this(name, settings, new LoggerExternalScopeProvider())
{
}
/// <summary>
/// Initializes a new instance of the <see cref="EventLogLoggerProvider"/> class.
/// </summary>
/// <param name="settings">The <see cref="EventLogSettings"/>.</param>
public EventLogLoggerProvider(EventLogSettings settings)
{
_settings = settings;
}
