protected virtual void OnChangesSelected(ChangesSelectedEventArgs args)
{
if (ChangesSelected != null)
{
ChangesSelected(this, args);
}
}
public void SampleServerSyncProvider_ChangesSelected(object sender, ChangesSelectedEventArgs e)
{
Console.WriteLine("Total number of batches: " + e.Context.BatchCount);
Console.WriteLine("Changes applied for group " + e.GroupMetadata.GroupName);
Console.WriteLine("Inserts applied for group: " + e.Context.GroupProgress.TotalInserts.ToString());
Console.WriteLine("Updates applied for group: " + e.Context.GroupProgress.TotalUpdates.ToString());
Console.WriteLine("Deletes applied for group: " + e.Context.GroupProgress.TotalDeletes.ToString());
}
/// <summary>
/// Selects for a table in the server database the inserts, updates, and deletes to apply to the client database for a synchronization group.
/// </summary>
/// <param name="groupMetadata">A SyncGroupMetadata object that contains metadata about the synchronization group.</param>
/// <param name="syncSession">A SyncSession object that contains synchronization session variables, such as the ID of the client that is synchronizing.</param>
/// <returns>A SyncContext object that contains synchronization data and metadata.</returns>
public override SyncContext GetChanges(SyncGroupMetadata groupMetadata, SyncSession syncSession)
{//#DOWNLOAD a batch 1
if (groupMetadata == null)
{
throw new ArgumentNullException("groupMetadata");
}
if (syncSession == null)
{
throw new ArgumentNullException("syncSession");
}
SyncContext syncContext = new SyncContext();
DataSet dataSet = new DataSet();
groupMetadata = InitializeMetadata(groupMetadata, dataSet, syncContext);
SelectingChangesEventArgs selectingArgs = new SelectingChangesEventArgs(groupMetadata, syncSession, syncContext, Connection, null);
OnSelectingChanges(selectingArgs);
SyncSchema schema = new SyncSchema();
Collection <string> tables = new Collection <string>();
Collection <string> missingTables = new Collection <string>();
foreach (var tableMetadata in groupMetadata.TablesMetadata)
{
tables.Add(tableMetadata.TableName);
}
if (tables.Count > 0)
{
schema = GetSchemaInternal(tables, out missingTables);
}
if (missingTables != null)
{
string[] tableArray = new string[missingTables.Count];
missingTables.CopyTo(tableArray, 0);
SchemaException e = new SchemaException(String.Format(CultureInfo.CurrentCulture,
Messages.MissingTables, String.Join(", ", tableArray)));
e.SyncStage = SyncStage.ReadingSchema;
e.ErrorNumber = SyncErrorNumber.MissingTableSchema;
throw e;
}
// FIX: Get schema from somewhere (possibly the adapter or a temporary schema)
// Possible performance hit when in mobile
EnumerateChanges(groupMetadata, syncSession, syncContext, schema);
ChangesSelectedEventArgs selectedArgs = new ChangesSelectedEventArgs(groupMetadata, syncSession, syncContext, Connection, null);//sYNC tODO
OnChangesSelected(selectedArgs);
return(syncContext);
}
//Create client and server log files, and write to them
//based on data from several EventArgs classes.
public static void LogEvents(object sender, EventArgs e)
{
string logFile = String.Empty;
string site = String.Empty;
if (sender is SampleServerSyncProvider)
{
logFile = "ServerLogFile.txt";
site = "server";
}
else if (sender is SampleClientSyncProvider)
{
logFile = "ClientLogFile.txt";
site = "client";
}
StreamWriter streamWriter = File.AppendText(logFile);
StringBuilder outputText = new StringBuilder();
if (e is ChangesSelectedEventArgs)
{
ChangesSelectedEventArgs args = (ChangesSelectedEventArgs)e;
outputText.AppendLine("Client ID: " + args.Session.ClientId);
outputText.AppendLine("Changes selected from " + site + " for group " + args.GroupMetadata.GroupName);
outputText.AppendLine("Inserts selected from " + site + " for group: " + args.Context.GroupProgress.TotalInserts.ToString());
outputText.AppendLine("Updates selected from " + site + " for group: " + args.Context.GroupProgress.TotalUpdates.ToString());
outputText.AppendLine("Deletes selected from " + site + " for group: " + args.Context.GroupProgress.TotalDeletes.ToString());
}
else if (e is ChangesAppliedEventArgs)
{
ChangesAppliedEventArgs args = (ChangesAppliedEventArgs)e;
outputText.AppendLine("Client ID: " + args.Session.ClientId);
outputText.AppendLine("Changes applied to " + site + " for group " + args.GroupMetadata.GroupName);
outputText.AppendLine("Inserts applied to " + site + " for group: " + args.Context.GroupProgress.TotalInserts.ToString());
outputText.AppendLine("Updates applied to " + site + " for group: " + args.Context.GroupProgress.TotalUpdates.ToString());
outputText.AppendLine("Deletes applied to " + site + " for group: " + args.Context.GroupProgress.TotalDeletes.ToString());
}
else if (e is SchemaCreatedEventArgs)
{
SchemaCreatedEventArgs args = (SchemaCreatedEventArgs)e;
outputText.AppendLine("Schema creation for group: " + args.Table.SyncGroup.GroupName);
outputText.AppendLine("Table: " + args.Table.TableName);
outputText.AppendLine("Direction : " + args.Table.SyncDirection);
outputText.AppendLine("Creation Option: " + args.Table.CreationOption);
}
//<snippetOCS_CS_Events_ApplyChangeFailedEventArgs>
else if (e is ApplyChangeFailedEventArgs)
{
ApplyChangeFailedEventArgs args = (ApplyChangeFailedEventArgs)e;
outputText.AppendLine("** APPLY CHANGE FAILURE AT " + site.ToUpper() + " **");
outputText.AppendLine("Table for which failure occurred: " + args.TableMetadata.TableName);
outputText.AppendLine("Error message: " + args.Error.Message);
}
//</snippetOCS_CS_Events_ApplyChangeFailedEventArgs>
else
{
outputText.AppendLine("Unknown event occurred");
}
streamWriter.WriteLine(DateTime.Now.ToShortTimeString() + " | " + outputText.ToString());
streamWriter.Flush();
streamWriter.Dispose();
}