private static void ProcessTables(AstRootNode astRootNode)
{
var tables = new List <AstTableBaseNode>(astRootNode.Tables);
foreach (var dimension in astRootNode.Dimensions)
{
tables.Add(dimension);
}
foreach (var fact in astRootNode.Facts)
{
tables.Add(fact);
}
foreach (AstTableNode table in tables)
{
if (table.LateArriving)
{
LateArrivingLowerer.ProcessLateArrivingTable(table);
}
if (table.HasScdColumns)
{
SlowlyChangingDimensionsLowerer.ProcessTableScdColumns(table);
}
foreach (var staticSourcePackage in StaticSourcesLowerer.ProcessTableStaticSource(table))
{
astRootNode.Packages.Add(staticSourcePackage);
}
if (!(table is AstTableCloneNode) && table.EmitVersionNumber)
{
var versionNumber = new AstTableColumnNode(table)
{
Name = "VersionNumber",
ColumnType = ColumnType.Binary,
Length = 8,
CustomType = "rowversion",
IsAssignable = false,
IsNullable = false,
IsAutoGenerated = true
};
table.Columns.Add(versionNumber);
}
if (table.Emit)
{
astRootNode.Packages.Add(TableLowerer.ProcessTable(table));
}
}
}
public static void ProcessLateArrivingTable(AstTableNode astTableNode)
{
var lateArrivedColumn = new AstTableColumnNode(astTableNode)
{
Name = "_LateArrived", IsNullable = true, ColumnType = ColumnType.DateTime2, IsAutoGenerated = true
};
var markLateColumn = new AstTableColumnNode(astTableNode)
{
Name = "_IsLate", IsNullable = true, ColumnType = ColumnType.Boolean, IsAutoGenerated = true, Computed = "_LateArrived IS NOT NULL PERSISTED NOT NULL"
};
astTableNode.Columns.Add(lateArrivedColumn);
astTableNode.Columns.Add(markLateColumn);
}
public AstTableNode GetFileSchema()
{
//default the schema to "File"
AstSchemaNode astSchemaNode = new AstSchemaNode(null)
{
Name = "File",
ForceDisableIncrementalChangeTracking = true
};
AstTableNode astTableNode = new AstTableNode(null)
{
Name = this.Name,
Schema = astSchemaNode,
ForceDisableIncrementalChangeTracking = true
};
this.TableNode = astTableNode;
Interrogator i = new Interrogator();
List <DestinationColumn> DestinationObject = i.ProcessFile(
this.FilePath,
this.ColumnDelimiter,
this.FirstRowHeader,
this.HeaderRowsToSkip,
this.TextQualifier);
foreach (DestinationColumn col in DestinationObject)
{
AstTableColumnNode currentColumn = new AstTableColumnNode(astTableNode)
{
ForceDisableIncrementalChangeTracking = true
};
//set up the column
currentColumn.Name = col.Name;
if (col.MaxLength != null)
{
currentColumn.Length = int.Parse(col.MaxLength.ToString());
}
if (col.Precision != null)
{
currentColumn.Precision = int.Parse(col.Precision.ToString());
}
currentColumn.IsNullable = col.Nullable;
//add the column to the table
this.TableNode.Columns.Add(currentColumn);
}
return(this.TableNode);
}
public static void ProcessTableScdColumns(AstTableNode astTableNode)
{
AstLowererValidation.ValidateScdTable(astTableNode);
bool emitScdColumns = astTableNode.Columns.Any(column => column.ScdType == ScdType.Historical);
if (emitScdColumns)
{
var scdFromColumn = new AstTableColumnNode(astTableNode)
{
Name = "_scdFrom", ColumnType = ColumnType.DateTime2, IsAutoGenerated = true
};
astTableNode.Columns.Add(scdFromColumn);
var scdToColumn = new AstTableColumnNode(astTableNode)
{
Name = "_scdTo", ColumnType = ColumnType.DateTime2, IsAutoGenerated = true
};
astTableNode.Columns.Add(scdToColumn);
}
}
public static AstTableNode ToAstTableNode(this DataTable dataTable)
{
var schema = new AstSchemaNode(null);
var table = new AstTableNode(null);
schema.Name = dataTable.Rows.OfType <DataRow>().Select(r => r["TABLE_SCHEMA"].ToString()).First();
table.Schema = schema;
table.Name = dataTable.Rows.OfType <DataRow>().Select(r => r["TABLE_NAME"].ToString()).First();
foreach (DataRow row in dataTable.Rows)
{
var column = new AstTableColumnNode(table)
{
Name = row["COLUMN_NAME"].ToString(),
DataType = row["DATA_TYPE"].ToString().GetDbType(),
IsNullable = Convert.ToBoolean(row["IS_NULLABLE"].ToString().Replace("YES", "true").Replace("NO", "false"))
};
if (!row.IsNull("CHARACTER_MAXIMUM_LENGTH"))
{
column.Length = Convert.ToInt32(row["CHARACTER_MAXIMUM_LENGTH"]);
}
if (!row.IsNull("NUMERIC_PRECISION"))
{
column.Precision = Convert.ToInt32(row["NUMERIC_PRECISION"]);
}
if (!row.IsNull("NUMERIC_SCALE"))
{
column.Precision = Convert.ToInt32(row["NUMERIC_SCALE"]);
}
table.Columns.Add(column);
}
return(table);
}