public Task UpdateInstalledStateAsync(EngineFeatureState featureState, EngineFeatureState.States value)
{
if (Logger.IsEnabled(LogLevel.Debug))
{
Logger.LogDebug("Feature '{FeatureName}' InstallState changed from '{FeatureState}' to '{FeatureState}'", featureState.Id, featureState.InstallState, value);
}
return(Task.CompletedTask);
}
private static bool FeatureIsChanging(EngineFeatureState engineFeatureState)
{
if (engineFeatureState.EnableState == EngineFeatureState.States.Rising ||
engineFeatureState.EnableState == EngineFeatureState.States.Falling)
{
return(true);
}
if (engineFeatureState.InstallState == EngineFeatureState.States.Rising ||
engineFeatureState.InstallState == EngineFeatureState.States.Falling)
{
return(true);
}
return(false);
}
private async Task <EngineFeatureState> GetOrCreateFeatureStateAsync(string id)
{
var engineState = await GetEngineStateAsync();
var featureState = engineState.Features.FirstOrDefault(x => x.Id == id);
if (featureState == null)
{
featureState = new EngineFeatureState()
{
Id = id
};
_engineState.Features.Add(featureState);
}
return(featureState);
}
async Task IEngineDescriptorManagerEventHandler.Changed(EngineDescriptor descriptor, string tenant)
{
var engineState = await _stateManager.GetEngineStateAsync();
foreach (var feature in descriptor.Features)
{
var featureId = feature.Id;
var featureState = engineState.Features.SingleOrDefault(f => f.Id == featureId);
if (featureState == null)
{
featureState = new EngineFeatureState
{
Id = featureId
};
}
if (!featureState.IsInstalled)
{
await _stateManager.UpdateInstalledStateAsync(featureState, EngineFeatureState.States.Rising);
}
if (!featureState.IsEnabled)
{
await _stateManager.UpdateEnabledStateAsync(featureState, EngineFeatureState.States.Rising);
}
}
foreach (var featureState in engineState.Features)
{
var featureId = featureState.Id;
if (descriptor.Features.Any(f => f.Id == featureId))
{
continue;
}
if (!featureState.IsDisabled)
{
await _stateManager.UpdateEnabledStateAsync(featureState, EngineFeatureState.States.Falling);
}
}
FireApplyChangesIfNeeded();
}
public async Task UpdateInstalledStateAsync(EngineFeatureState featureState, EngineFeatureState.States value)
{
if (Logger.IsEnabled(LogLevel.Debug))
{
Logger.LogDebug("Feature '{FeatureName}' InstallState changed from '{FeatureState}' to '{FeatureState}'", featureState.Id, featureState.InstallState, value);
}
var previousFeatureState = await GetOrCreateFeatureStateAsync(featureState.Id);
if (previousFeatureState.InstallState != featureState.InstallState)
{
if (Logger.IsEnabled(LogLevel.Warning))
{
Logger.LogWarning("Feature '{FeatureName}' prior InstallState was '{FeatureState}' when '{FeatureState}' was expected",
featureState.Id, previousFeatureState.InstallState, featureState.InstallState);
}
}
previousFeatureState.InstallState = value;
featureState.InstallState = value;
UpdateEngineState();
}
static bool IsRising(EngineFeatureState state)
{
return(state.InstallState == EngineFeatureState.States.Rising ||
state.EnableState == EngineFeatureState.States.Rising);
}
private static bool FeatureShouldBeLoadedForStateChangeNotifications(EngineFeatureState engineFeatureState)
{
return(FeatureIsChanging(engineFeatureState) || engineFeatureState.EnableState == EngineFeatureState.States.Up);
}
