static void Reload(object state)
{
if (_watcher == null)
{
return;
}
// Quick and dirty trick to handle Renamed events
// or too quick events.
Thread.Sleep(100);
var time = File.GetLastWriteTimeUtc(_configPath);
if (time != _lastConfigFileWriteTime)
{
GrandOutputConfiguration def;
lock ( _watcherLock )
{
time = File.GetLastWriteTimeUtc(_configPath);
if (time == _lastConfigFileWriteTime)
{
return;
}
_lastConfigFileWriteTime = time;
}
var monitor = new SystemActivityMonitor(true, "GrandOutput.Default.Reconfiguration")
{
MinimalFilter = GrandOutputMinimalFilter
};
try
{
using (monitor.OpenGroup(LogLevel.Info, string.Format("AppDomain '{0}', file '{1}' changed (change n°{2}).", AppDomain.CurrentDomain.FriendlyName, _configPath, _default.ConfigurationAttemptCount), null))
{
def = CreateDefaultConfig();
if (File.Exists(_configPath))
{
if (time == FileUtil.MissingFileLastWriteTimeUtc)
{
_lastConfigFileWriteTime = File.GetLastWriteTimeUtc(_configPath);
}
def.LoadFromFile(_configPath, monitor);
}
else
{
_lastConfigFileWriteTime = FileUtil.MissingFileLastWriteTimeUtc;
monitor.SendLine(LogLevel.Trace, "File missing: applying catch-all default configuration.", null);
}
if (!_default._channelHost.IsDisposed)
{
_default.SetConfiguration(def, monitor);
}
}
}
catch (Exception ex)
{
monitor.SendLine(LogLevel.Error, null, ex);
}
}
}
/// <summary>
/// Ensures that the <see cref="Default"/> GrandOutput is created (see <see cref="EnsureActiveDefault"/>) and configured with default settings:
/// only one one channel with its minimal filter sets to Debug with one text file handler that writes .txt files in "<see cref="SystemActivityMonitor.RootLogPath"/>\GrandOutputDefault" directory.
/// The <see cref="SystemActivityMonitor.RootLogPath"/> must be valid and if a GrandOutput.config file exists inside, it is loaded as the configuration.
/// If it exists, it must be valid (otherwise an exception is thrown).
/// Once loaded, the file is monitored and any change that occurs to it dynamically triggers a <see cref="SetConfiguration"/> with the new file.
/// </summary>
/// <param name="monitor">An optional monitor.</param>
static public GrandOutput EnsureActiveDefaultWithDefaultSettings(IActivityMonitor monitor = null)
{
lock ( _defaultLock )
{
if (_default == null)
{
if (monitor == null)
{
monitor = new SystemActivityMonitor(true, "GrandOutput")
{
MinimalFilter = GrandOutputMinimalFilter
}
}
;
using (monitor.OpenGroup(LogLevel.Info, "Attempting Default GrandOutput configuration.", null))
{
try
{
SystemActivityMonitor.AssertRootLogPathIsSet();
_configPath = SystemActivityMonitor.RootLogPath + "GrandOutput.config";
GrandOutputConfiguration def = CreateDefaultConfig();
if (!File.Exists(_configPath))
{
File.WriteAllText(_configPath, _defaultConfig);
}
if (!def.LoadFromFile(_configPath, monitor))
{
throw new CKException("Unable to load Configuration file: '{0}'.", _configPath);
}
GrandOutput output = new GrandOutput();
if (!output.SetConfiguration(def, monitor))
{
throw new CKException("Failed to set Configuration.");
}
StartMonitoring(monitor);
_default = output;
ActivityMonitor.AutoConfiguration += m => _default.Register(m);
}
catch (Exception ex)
{
monitor.SendLine(LogLevel.Fatal, null, ex);
throw;
}
}
}
}
return(_default);
}
const string _defaultConfig =
@"<GrandOutputConfiguration>
<Channel MinimalFilter=""Debug"">
<Add Type=""TextFile"" Name=""All"" Path=""GrandOutputDefault"" MaxCountPerFile=""20000"" />
</Channel>
</GrandOutputConfiguration>";
/// <summary>
/// Attempts to set a new configuration.
/// </summary>
/// <param name="config">The configuration that must be set.</param>
/// <param name="monitor">Optional monitor.</param>
/// <param name="millisecondsBeforeForceClose">Optional timeout to wait before forcing the close of the currently active configuration.</param>
/// <returns>True on success.</returns>
public bool SetConfiguration(GrandOutputConfiguration config, IActivityMonitor monitor = null, int millisecondsBeforeForceClose = Timeout.Infinite)
{
if (config == null)
{
throw new ArgumentNullException("config");
}
if (monitor == null)
{
monitor = new SystemActivityMonitor(true, "GrandOutput")
{
MinimalFilter = GrandOutputMinimalFilter
}
}
;
using (monitor.OpenGroup(LogLevel.Info, this == Default ? "Applying Default GrandOutput configuration." : "Applying GrandOutput configuration.", null))
{
if (_channelHost.SetConfiguration(monitor, config.ChannelsConfiguration ?? new RouteConfiguration(), millisecondsBeforeForceClose))
{
if (this == _default && config.GlobalDefaultFilter.HasValue)
{
ActivityMonitor.DefaultFilter = config.GlobalDefaultFilter.Value;
}
if (config.SourceOverrideFilterApplicationMode == SourceFilterApplyMode.Clear || config.SourceOverrideFilterApplicationMode == SourceFilterApplyMode.ClearThenApply)
{
ActivityMonitor.SourceFilter.ClearOverrides();
}
if (config.SourceOverrideFilter != null && (config.SourceOverrideFilterApplicationMode == SourceFilterApplyMode.Apply || config.SourceOverrideFilterApplicationMode == SourceFilterApplyMode.ClearThenApply))
{
foreach (var k in config.SourceOverrideFilter)
{
ActivityMonitor.SourceFilter.SetOverrideFilter(k.Value, k.Key);
}
}
monitor.CloseGroup("Success.");
return(true);
}
return(false);
}
}