ApplySnapshotAsync(ScopeInfo clientScopeInfo, BatchInfo serverBatchInfo, long clientTimestamp, long remoteClientTimestamp, CancellationToken cancellationToken = default, IProgress <ProgressArgs> progress = null)
{
if (!this.StartTime.HasValue)
{
this.StartTime = DateTime.UtcNow;
}
if (serverBatchInfo == null || !await serverBatchInfo.HasDataAsync(this))
{
return(new DatabaseChangesApplied(), clientScopeInfo);
}
// Get context or create a new one
var ctx = this.GetContext();
ctx.SyncStage = SyncStage.SnapshotApplying;
await this.InterceptAsync(new SnapshotApplyingArgs(ctx), cancellationToken).ConfigureAwait(false);
var connection = this.Provider.CreateConnection();
this.logger.LogDebug(SyncEventsId.ApplySnapshot, new { connection.Database, ClientTimestamp = clientTimestamp, RemoteClientTimestamp = remoteClientTimestamp });
if (clientScopeInfo.Schema == null)
{
throw new ArgumentNullException(nameof(clientScopeInfo.Schema));
}
// Applying changes and getting the new client scope info
var(changesApplied, newClientScopeInfo) = await this.ApplyChangesAsync(clientScopeInfo, clientScopeInfo.Schema, serverBatchInfo,
clientTimestamp, remoteClientTimestamp, ConflictResolutionPolicy.ServerWins, cancellationToken, progress);
// Because we have initialize everything here (if syncType != Normal)
// We don't want to download everything from server, so change syncType to Normal
ctx.SyncType = SyncType.Normal;
this.logger.LogInformation(SyncEventsId.ApplyChanges, changesApplied);
// Progress & Interceptor
ctx.SyncStage = SyncStage.SnapshotApplied;
var snapshotAppliedArgs = new SnapshotAppliedArgs(ctx);
this.ReportProgress(ctx, progress, snapshotAppliedArgs);
await this.InterceptAsync(snapshotAppliedArgs, cancellationToken).ConfigureAwait(false);
return(changesApplied, newClientScopeInfo);
}
