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Lidarr/NzbDrone.Core/ProgressMessaging/ProgressMessageTarget.cs

91 lines
2.8 KiB

using System;
using NLog.Config;
using NLog;
using NLog.Layouts;
using NLog.Targets;
using NzbDrone.Common.Messaging;
using NzbDrone.Common.Messaging.Tracking;
using NzbDrone.Core.Lifecycle;
namespace NzbDrone.Core.ProgressMessaging
{
public class ProgressMessageTarget : TargetWithLayout, IHandle<ApplicationStartedEvent>, IHandle<ApplicationShutdownRequested>
{
private readonly IMessageAggregator _messageAggregator;
public LoggingRule Rule { get; set; }
public ProgressMessageTarget(IMessageAggregator messageAggregator)
{
_messageAggregator = messageAggregator;
}
public void Register()
{
Layout = new SimpleLayout("${callsite:className=false:fileName=false:includeSourcePath=false:methodName=true}");
Rule = new LoggingRule("*", this);
Rule.EnableLoggingForLevel(LogLevel.Info);
LogManager.Configuration.AddTarget("ProgressMessagingLogger", this);
LogManager.Configuration.LoggingRules.Add(Rule);
LogManager.ConfigurationReloaded += OnLogManagerOnConfigurationReloaded;
LogManager.ReconfigExistingLoggers();
}
public void UnRegister()
{
LogManager.ConfigurationReloaded -= OnLogManagerOnConfigurationReloaded;
LogManager.Configuration.RemoveTarget("ProgressMessagingLogger");
LogManager.Configuration.LoggingRules.Remove(Rule);
LogManager.ReconfigExistingLoggers();
Dispose();
}
private void OnLogManagerOnConfigurationReloaded(object sender, LoggingConfigurationReloadedEventArgs args)
{
Register();
}
protected override void Write(LogEventInfo logEvent)
{
var commandId = MappedDiagnosticsContext.Get("CommandId");
if (String.IsNullOrWhiteSpace(commandId))
{
return;
}
if (!logEvent.Properties.ContainsKey("Status"))
{
return;
}
var status = (ProcessState)logEvent.Properties["Status"];
var message = new ProgressMessage();
message.Time = logEvent.TimeStamp;
message.CommandId = commandId;
message.Message = logEvent.FormattedMessage;
message.Status = status;
_messageAggregator.PublishEvent(new NewProgressMessageEvent(message));
}
public void Handle(ApplicationStartedEvent message)
{
if (!LogManager.Configuration.LoggingRules.Contains(Rule))
{
Register();
}
}
public void Handle(ApplicationShutdownRequested message)
{
if (LogManager.Configuration.LoggingRules.Contains(Rule))
{
UnRegister();
}
}
}
}