/// <summary>
/// Launch apply bulk changes
/// </summary>
/// <returns></returns>
public int ApplyBulkChanges(DmView dmChanges, ScopeInfo fromScope, List <SyncConflict> conflicts)
{
DbCommand bulkCommand = null;
if (this.applyType == DmRowState.Added)
{
bulkCommand = this.GetCommand(DbObjectType.BulkInsertProcName);
}
else if (this.applyType == DmRowState.Modified)
{
bulkCommand = this.GetCommand(DbObjectType.BulkUpdateProcName);
}
else if (this.applyType == DmRowState.Deleted)
{
bulkCommand = this.GetCommand(DbObjectType.BulkDeleteProcName);
}
else
{
throw new Exception("DmRowState not valid during ApplyBulkChanges operation");
}
if (Transaction != null && Transaction.Connection != null)
{
bulkCommand.Transaction = Transaction;
}
DmTable batchDmTable = dmChanges.Table.Clone();
DmTable failedDmtable = new DmTable {
Culture = CultureInfo.InvariantCulture
};
// Create the schema for failed rows (just add the Primary keys)
this.AddSchemaForFailedRowsTable(batchDmTable, failedDmtable);
int batchCount = 0;
int rowCount = 0;
foreach (var dmRow in dmChanges)
{
// Cancel the delete state to be able to get the row, more simplier
if (applyType == DmRowState.Deleted)
{
dmRow.RejectChanges();
}
// Load the datarow
DmRow dataRow = batchDmTable.LoadDataRow(dmRow.ItemArray, false);
// Apply the delete
// is it mandatory ?
if (applyType == DmRowState.Deleted)
{
dmRow.Delete();
}
batchCount++;
rowCount++;
if (batchCount != 500 && rowCount != dmChanges.Count)
{
continue;
}
// Since the update and create timestamp come from remote, change name for the bulk operations
batchDmTable.Columns["update_timestamp"].ColumnName = "update_timestamp";
batchDmTable.Columns["create_timestamp"].ColumnName = "create_timestamp";
// execute the batch, through the provider
ExecuteBatchCommand(bulkCommand, batchDmTable, failedDmtable, fromScope);
// Clear the batch
batchDmTable.Clear();
// Recreate a Clone
// TODO : Evaluate if it's necessary
batchDmTable = dmChanges.Table.Clone();
batchCount = 0;
}
// Update table progress
//tableProgress.ChangesApplied = dmChanges.Count - failedDmtable.Rows.Count;
if (failedDmtable.Rows.Count == 0)
{
return(dmChanges.Count);
}
// Check all conflicts raised
var failedFilter = new Predicate <DmRow>(row =>
{
if (row.RowState == DmRowState.Deleted)
{
return(failedDmtable.FindByKey(row.GetKeyValues(DmRowVersion.Original)) != null);
}
else
{
return(failedDmtable.FindByKey(row.GetKeyValues()) != null);
}
});
// New View
var dmFailedRows = new DmView(dmChanges, failedFilter);
// Generate a conflict and add it
foreach (var dmFailedRow in dmFailedRows)
{
conflicts.Add(GetConflict(dmFailedRow));
}
int failedRows = dmFailedRows.Count;
// Dispose the failed view
dmFailedRows.Dispose();
// return applied rows - failed rows (generating a conflict)
return(dmChanges.Count - failedRows);
}
