public ConfigurationService()
{
configurator = new SyncEngineDatabaseConfigurator(IntegrationWindowsService.IntegrationDbConnectionString);
scheduledJobManager = new ScheduledJobManager(configurator);
}
// Start the Windows service.
protected override void OnStart(string[] onStartArgs)
{
try
{
// get connection string from connectionStrings in App.config
GetIntegrationDbConnectionString();
// test connection to the queue database
TestIntegrationDbConnection(IntegrationDbConnectionString);
_dbQueueLogger = new JobQueueDatabaseLogger(IntegrationDbConnectionString);
_configurator = new SyncEngineDatabaseConfigurator(IntegrationDbConnectionString);
JobQueueManager.Configurator = _configurator;
_serviceConfig = _configurator.GetServiceConfig();
// reset the logger as a precaution
SyncEngineLogger.Clear();
// configure mail notifications, if enabled
if (_serviceConfig.EnableMailNotifications)
{
ConfigureMailNotifications();
}
// add database and text file loggers
RegisterLoggers();
// register integrations for the database and text file loggers
RegisterIntegrations();
// associate the database logger with the queue manager
JobQueueLogManager.AddLogger(_dbQueueLogger);
// recover any job instances from a server or service restart; this will only apply to on-demand job instances
_dbQueueLogger.RecoverJobInstancesFromQueueLog();
// add the next run times for each scheduled job; clear any existing scheduled jobs from the queue
_scheduledJobManager = new ScheduledJobManager(_configurator);
_scheduledJobManager.QueueScheduledJobs(clearExistingScheduledJobInstancesFromWaitingQueue: true);
// once a scheduled job is complete (i.e. queue request), queue for the next run time
JobQueueManager.JobQueueRequestStatusChanged += new EventHandler <JobQueueRequestStatusChangedArgs>((s, e) =>
{
if (e.QueueRequest.Status == JobQueueRequestStatus.Completed &&
e.QueueRequest.InvocationSourceType == JobInvocationSourceType.Scheduled)
{
_scheduledJobManager.QueueJobForNextScheduledRunTime(e.QueueRequest.Job.Id);
}
});
JobQueueManager.MaxDelayedStartByJobPriority = _configurator.GetJobPriorityConfig();
JobQueueManager.Start(_serviceConfig.IntervalInSeconds);
InitializeWebServiceHosts();
}
catch (Exception ex)
{
EventViewerLogger.WriteToLog(ex);
SyncEngineLogger.WriteExceptionToLog(ex);
// stop the service
this.Stop();
}
}
