private List <DataSource> getCubeDataSource(string cubePath)
{
List <DataSource> myDataSources = new List <DataSource>();
// Load current cube
XmlDocument myXmlCube = new XmlDocument();
myXmlCube = loadCube(cubePath);
//// Determine xpath to search for dsv
XmlNodeList nodes;
string xBasePath = "/~ns~:Batch/~ns~:Alter/~ns~:ObjectDefinition/~ns~:Database";
string xPath = "/~ns~:DataSources/~ns~:DataSource/~ns~:ConnectionString";
// Return nodes with data source(s)
nodes = ArtifactReader.getArtifactNodes(xPath, myXmlCube, xBasePath);
// TODO: Check for multiple connection stringsB
foreach (XmlNode node in nodes)
{
DataSource dataSource = new DataSource();
dataSource._dsConnString = node.InnerText;
dataSource._dsInitCatalog = getCubeInitialCatalog(dataSource);
myDataSources.Add(dataSource);
}
return(myDataSources);
}
// Get the data type from the cube
public static Tuple <string, string> GetCubeColumnDataType(XmlNodeList nodes)
{
//
// Summary:
// Finds the cube data type
// and corresponding metadata
// such as length
//
Tuple <string, string> tuple = null;
string dataType = null;
string length = "not applicable";
// datatype selection is always based on the first node in the NodeList
// datatypes int, decimal, double, dateTime and boolean are
// stored in the "type" attribute
if (nodes.Item(0).Attributes[$"type"] != null)
{
dataType = ArtifactReader.FindXmlAttribute(nodes, "type");
}
// string datatype and character length are stored
// in the child nodes
else if (nodes.Item(0).HasChildNodes)
{
dataType = ArtifactReader.FindXmlAttribute(nodes.Item(0).ChildNodes, "base");
length = ArtifactReader.FindXmlAttribute(nodes.Item(0).ChildNodes, "value");
}
tuple = Tuple.Create(dataType.Replace("xs:", ""), length.Replace("xs:", ""));
return(tuple);
}
private List <Table> getDbTables(string modelPath, string tableOrView)
{
List <Table> tables = new List <Table>();
XmlDocument myDatabase = new XmlDocument();
myDatabase.Load(modelPath);
// Determine xpath to search for dsv
XmlNodeList nodes;
string xPath = tableOrView == "table" ? "/~ns~:DataSchemaModel/~ns~:Model/~ns~:Element[@Type='SqlTable']/@Name" : "/~ns~:DataSchemaModel/~ns~:Model/~ns~:Element[@Type='SqlView']/@Name";
nodes = ArtifactReader.getArtifactNodes(xPath, myDatabase);
foreach (XmlNode x in nodes)
{
Table table = new Table();
table.TableName = x.InnerText.Replace("[", "").Replace("]", "");
table.TableType = tableOrView == "table" ? "table" : "view";
tables.Add(table);
Console.WriteLine($"Found table {x.InnerText}");
string xPathCols = xPath.Replace("]/@Name", $" and @Name='{x.InnerText}']");
xPathCols += tableOrView == "table" ? "/~ns~:Relationship/~ns~:Entry/~ns~:Element[@Type='SqlSimpleColumn']/@Name" : "/~ns~:Relationship/~ns~:Entry/~ns~:Element[@Type='SqlComputedColumn']/@Name";
XmlNodeList columns;
columns = ArtifactReader.getArtifactNodes(xPathCols, myDatabase);
foreach (XmlNode c in columns)
{
Column column = new Column();
column.ColumnName = simplifyColumnName(c.InnerText.Replace("[", "").Replace("]", ""));
table.AddColumn(column);
Console.WriteLine($"Found column {c.InnerText} and added it to the {tableOrView}.");
}
}
return(tables);
}
private string getCubeName(string cubePath)
{
// Create, configure and load xml items and values
XmlDocument myXmlCube = new XmlDocument();
myXmlCube = loadCube(cubePath);
// Determine xpath to search for cube name
XmlNodeList nameNodes;
string xNamePath = "/~ns~:Batch/~ns~:Alter/~ns~:ObjectDefinition/~ns~:Database/~ns~:Name";
nameNodes = ArtifactReader.getArtifactNodes(xNamePath, myXmlCube);
if (nameNodes.Count == 1)
{
return(nameNodes.Item(0).InnerText.ToString());
}
else
{
// TODO: throw error
Console.WriteLine("Multiple names where found for a cube. No name was passed to the cube property.");
return(null);
}
}
private DataSource getDbDataSource(string modelPath)
{
DataSource dataSource = new DataSource();
string metadataPath = Path.GetDirectoryName(modelPath) + "\\DacMetadata.xml";
XmlDocument myDatabase = new XmlDocument();
myDatabase.Load(metadataPath);
// Determine xpath to search for dsv
XmlNodeList nodes;
string xPath = "/~ns~:DacType/~ns~:Name";
nodes = ArtifactReader.getArtifactNodes(xPath, myDatabase);
foreach (XmlNode x in nodes)
{
dataSource._dsInitCatalog = x.InnerText;
Console.WriteLine($"Found node {x.InnerText}");
}
return(dataSource);
}
private List <CubeTable> GetCubeTables(string cubePath)
{
List <CubeTable> foundTables = new List <CubeTable>();
// Create, configure and load xml items and values
XmlDocument myXmlCube = new XmlDocument();
myXmlCube = loadCube(cubePath);
// Determine xpath to search for tables
XmlNodeList nodes;
string xDimPath = "/~ns~:Batch/~ns~:Alter/~ns~:ObjectDefinition/~ns~:Database/" +
"~ns~:Dimensions/~ns~:Dimension";
string xPath = "/~ns~:Attributes/~ns~:Attribute/~ns~:KeyColumns/~ns~:KeyColumn/~ns~:Source";
// Read the cube's nodes based on the xPath expression
nodes = ArtifactReader.getArtifactNodes(xPath, myXmlCube, xDimPath);
string checkNode = null;
foreach (XmlNode node in nodes)
{
CubeTable currentTable = foundTables.Find(x => x.CubeTableName.Equals(node.FirstChild.InnerText));
// Check if a new table is presented
if (currentTable is null)
{
// Add cube table
currentTable = new CubeTable();
currentTable.CubeTableName = node.FirstChild.InnerText;
checkNode = currentTable.CubeTableName;
// Add db ref table
// Find db table name and schema
XmlNodeList trueTables;
xPath = $"/~ns~:Batch/~ns~:Alter/~ns~:ObjectDefinition/~ns~:Database/~ns~:DataSourceViews/" +
$"~ns~:DataSourceView/~ns~:Schema/xs:schema/xs:element/xs:complexType/xs:choice/" +
$"xs:element[@name=\'{node.FirstChild.InnerText}\']";
trueTables = ArtifactReader.getArtifactNodes(xPath, myXmlCube);
// Add findings to property list
string trueTableName, trueSchemaName;
trueTableName = trueTables.Item(0).Attributes.GetNamedItem("msprop:DbTableName").Value.ToString();
trueSchemaName = trueTables.Item(0).Attributes.GetNamedItem("msprop:DbSchemaName").Value.ToString();
// Concat the schema and table name and store it as table name
currentTable.TableName = trueSchemaName + "." + trueTableName;
// Add table to output
foundTables.Add(currentTable);
}
// Find matching db column name
XmlNodeList trueColumns;
xPath = $"/~ns~:Batch/~ns~:Alter/~ns~:ObjectDefinition/~ns~:Database/~ns~:DataSourceViews/" +
$"~ns~:DataSourceView/~ns~:Schema/xs:schema/xs:element/xs:complexType/xs:choice/" +
$"xs:element[@name=\'{currentTable.CubeTableName}\']/xs:complexType/xs:sequence/" +
$"xs:element[@name=\'{node.LastChild.InnerText}\']";
trueColumns = ArtifactReader.getArtifactNodes(xPath, myXmlCube);
// Do not include logical columns. These columns
// are computed in the data source view and do not
// directly correspond to database column.
// Add them to a special logical column list for
// later use.
if (CubeColumn.HandleLogicalColumns(trueColumns, currentTable))
{
break;
}
// Get cube column data type from the cube
Tuple <string, string> dataType = CubeColumn.GetCubeColumnDataType(trueColumns);
// TODO: Get database column data type from the dacpac
// Add cube columns to table
CubeColumn myColumn = new CubeColumn()
{
ColumnName = trueColumns.Item(0).Attributes.GetNamedItem("msprop:DbColumnName").Value.ToString(),
CubeColumnName = node.LastChild.InnerText,
CubeColumnDataType = dataType.Item1,
CubeColumnDataLength = dataType.Item2
};
currentTable.AddColumn(myColumn);
}
return(foundTables);
}
