public HierarchyLevelCollection(Hierarchy hierarchy) : base()
{
Hierarchy = hierarchy;
}
public QueryContext Prepare()
{
if (!IsReady)
{
throw new CubeNotReadyException(this);
}
DataSource ds = GetDataSource();
IDbConnection cn = ds.GetConnection();
try
{
Cube cube = Runtime.Cubes[Name];
if (cube == null)
{
cube = new Cube(Name);
Runtime.Cubes.Add(cube);
}
foreach (MeasureDef md in Measures)
{
if (cube.Measures[md.Name] == null)
{
Measure m = new Measure(md, md.Name);
cube.Measures.Add(m);
}
}
cn.Open();
Dimensions.ForEach(cdd =>
{
//cdd: CubeDimensionDef
//ad: AttributeDef
Dimension dim = Runtime.Dimensions[cdd.Name];
if (dim == null)
{
dim = new Dimension(cdd.Name);
Runtime.Dimensions.Add(dim);
cube.Dimensions.Add(dim);
}
cdd.Dimension.Attributes.ForEach(ad =>
{
Attribute attr = dim.Attributes[ad.Name];
if (attr == null)
{
attr = new Attribute(ad, ad.Name);
dim.Attributes.Add(attr);
AttributeQuery aq = new AttributeQuery(attr, cn);
aq.QueryMembers();
}
});
cdd.Dimension.Hierarchies.ForEach(ah =>
{
Hierarchy hier = dim.Hierarchies[ah.Name];
if (hier == null)
{
hier = new Hierarchy(ah, ah.Name);
dim.Hierarchies.Add(hier);
HierarchyQuery hq = new HierarchyQuery(hier, cn);
hq.QueryMembers();
}
});
});
return(new QueryContext(cube, cn));
}
catch (Exception e)
{
CloseConnection(cn);
throw e;
}
}
public HierarchyQuery(Hierarchy hierarchy, IDbConnection cn) : base(cn)
{
Hierarchy = hierarchy;
}