internal void Update(AppConfig appConfig, HashSet <string> changedSections)
{
// Figure out whether the data collector is interested in any of the
// changed sections. If so, it needs to be restarted.
IEnumerable <string> relevantChanges = Enumerable.Intersect(
this.dataCollector.RegisteredAppConfigSections,
changedSections);
if (0 == relevantChanges.Count())
{
Utility.TraceSource.WriteInfo(
TraceType,
"Configuration change did not require the data collector for application instance {0} to be restarted.",
this.applicationInstanceId);
}
Utility.TraceSource.WriteInfo(
TraceType,
"Data collector for application instance {0} will be restarted because the application configuration has changed.",
this.applicationInstanceId);
// Dispose the current data collector
this.dataCollector.Dispose();
// Update the configuration
ConfigReader.AddAppConfig(this.applicationInstanceId, appConfig);
// Create a new data collector
this.dataCollector = new FabricDCA(this.applicationInstanceId, this.diskSpaceManager);
}
internal void RemoveService(string servicePackageName)
{
ServiceConfig serviceConfig = ConfigReader.GetServiceConfig(
this.applicationInstanceId,
servicePackageName);
if (null == serviceConfig)
{
// We are not interested in this service, so there's nothing
// to do here.
Utility.TraceSource.WriteInfo(
TraceType,
"Deactivation of service package {0} does not require the data collector for application instance {1} to be restarted.",
servicePackageName,
this.applicationInstanceId);
return;
}
Utility.TraceSource.WriteInfo(
TraceType,
"Data collector for application instance {0} will be restarted because service package {1} was deactivated.",
this.applicationInstanceId,
servicePackageName);
// Dispose the current data collector
this.dataCollector.Dispose();
// Update the configuration
ConfigReader.RemoveServiceConfig(this.applicationInstanceId, servicePackageName);
// Create a new data collector
this.dataCollector = new FabricDCA(this.applicationInstanceId, this.diskSpaceManager);
}
internal AppInstance(string applicationInstanceId, AppConfig appConfig, string servicePackageName, ServiceConfig serviceConfig, DiskSpaceManager diskSpaceManager)
{
this.applicationInstanceId = applicationInstanceId;
this.diskSpaceManager = diskSpaceManager;
// Make the configuration available to the application
ConfigReader.AddAppConfig(this.applicationInstanceId, appConfig);
if (null != servicePackageName)
{
ConfigReader.AddServiceConfig(this.applicationInstanceId, servicePackageName, serviceConfig);
}
// Create the data collector for the application instance
this.dataCollector = new FabricDCA(this.applicationInstanceId, diskSpaceManager);
}
internal void AddService(AppConfig appConfig, string servicePackageName, ServiceConfig serviceConfig)
{
bool restartNeeded = false;
if (this.ServiceConfigHasChanged(servicePackageName, serviceConfig))
{
Utility.TraceSource.WriteInfo(
TraceType,
"Data collector for application instance {0} will be restarted because service package {1} was activated.",
this.applicationInstanceId,
servicePackageName);
restartNeeded = true;
}
else if (this.AppConfigHasChanged(appConfig))
{
Utility.TraceSource.WriteInfo(
TraceType,
"Data collector for application instance {0} will be restarted because the application configuration has changed.",
this.applicationInstanceId);
restartNeeded = true;
}
else
{
Utility.TraceSource.WriteInfo(
TraceType,
"Activation of service package {0} does not require the data collector for application instance {1} to be restarted.",
servicePackageName,
this.applicationInstanceId);
}
if (restartNeeded)
{
// Dispose the current data collector
this.dataCollector.Dispose();
// Update the configuration
ConfigReader.AddAppConfig(this.applicationInstanceId, appConfig);
ConfigReader.AddServiceConfig(this.applicationInstanceId, servicePackageName, serviceConfig);
// Create a new data collector
this.dataCollector = new FabricDCA(this.applicationInstanceId, this.diskSpaceManager);
}
}