/// <summary>
/// Called by the to indicate that a
/// synchronization session has started.
/// </summary>
public virtual Task <(SyncContext, SyncConfiguration)> BeginSessionAsync(SyncContext context, MessageBeginSession message)
{
try
{
lock (this)
{
if (this.syncInProgress)
{
throw new InProgressException("Synchronization already in progress");
}
this.syncInProgress = true;
}
// Set stage
context.SyncStage = SyncStage.BeginSession;
// Event progress
var progressEventArgs = new BeginSessionEventArgs(this.ProviderTypeName, context.SyncStage, null, null);
this.TryRaiseProgressEvent(progressEventArgs, this.BeginSession);
return(Task.FromResult((context, message.Configuration)));
}
catch (Exception ex)
{
throw new SyncException(ex, SyncStage.BeginSession, this.ProviderTypeName);
}
}
/// <summary>
/// Called by the to indicate that a
/// synchronization session has started.
/// </summary>
public virtual Task <SyncContext> BeginSessionAsync(SyncContext context)
{
try
{
Debug.WriteLine($"BeginSession() called on Provider {this.ProviderTypeName}");
lock (this)
{
if (this.syncInProgress)
{
throw SyncException.CreateInProgressException(context.SyncStage);
}
this.syncInProgress = true;
}
// Set stage
context.SyncStage = SyncStage.BeginSession;
// Event progress
var progressEventArgs = new BeginSessionEventArgs(this.ProviderTypeName, context.SyncStage);
this.TryRaiseProgressEvent(progressEventArgs, this.BeginSession);
}
catch (Exception ex)
{
if (ex is SyncException)
{
throw;
}
else
{
throw SyncException.CreateUnknowException(context.SyncStage, ex);
}
}
return(Task.FromResult(context));
}
