public async Task InitializeAsync()
{
try
{
this.metadata = await this.platformService.LoadFileAsync <SynchronizationMetadata>(SynchronizationMetadata.Filename);
if (this.metadata == null)
{
// do not use this.Workbook as it's null at this point because AttachWorkbook wasn't called yet
int launchCount = this.platformService.GetSettingValue <int>(CoreSettings.LaunchCount);
if (launchCount > 5)
{
TrackingManagerHelper.Trace("SynchronizationManager.InitializeAsync: null metadata while launch count is " + launchCount);
}
this.metadata = new SynchronizationMetadata();
}
}
catch (Exception)
{
this.metadata = new SynchronizationMetadata();
}
}
public void AttachWorkbook(IWorkbook target)
{
if (target == null)
{
throw new ArgumentNullException("target");
}
if (this.workbook != null)
{
throw new InvalidOperationException("Workbook is already attached");
}
this.workbook = target;
if (this.metadata != null)
{
this.ActiveService = this.metadata.ActiveProvider;
}
else
{
this.metadata = new SynchronizationMetadata();
}
this.provider = this.GetProvider(this.metadata.ActiveProvider);
if (this.provider != null)
{
// make sure we have valid information for syncing
if (string.IsNullOrEmpty(this.provider.ServerInfo) || string.IsNullOrEmpty(this.provider.LoginInfo))
{
this.ActiveService = SynchronizationService.None;
}
}
// listen for changes in the workbook
this.RegisterWorkbookEvents();
}
