public boolean includeLevel(
String queryName, String dimensionName, String uniqueHierarchyName, String uniqueLevelName) {
IQuery query = getIQuery(queryName);
removeAllChildren(queryName, dimensionName);
QueryDimension dimension = query.getDimension(dimensionName);
for (Hierarchy hierarchy : dimension.getDimension().getHierarchies()) {
if (hierarchy.getUniqueName().equals(uniqueHierarchyName)) {
for (Level level : hierarchy.getLevels()) {
if (level.getUniqueName().equals(uniqueLevelName)) {
Selection sel = dimension.createSelection(level);
if (!dimension.getInclusions().contains(sel)) {
dimension.include(level);
}
return true;
}
}
}
}
return false;
}
public SaikuQuery applyFilter(String queryname, SaikuFilter filter) throws Exception {
IQuery query = getIQuery(queryname);
if (filter != null
&& filter.getName() != null
&& filter.getDimension() != null
&& filter.getMembers() != null) {
query.setFilter(filter);
QueryDimension qDim = query.getDimension(filter.getDimension().getName());
if (qDim != null) {
qDim.clearInclusions();
query.moveDimension(qDim, Axis.FILTER);
for (SimpleCubeElement member : filter.getMembers()) {
List<IdentifierSegment> memberList =
IdentifierNode.parseIdentifier(member.getUniqueName()).getSegmentList();
qDim.include(memberList);
}
}
}
return ObjectUtil.convert(query);
}
public static void main(String[] args) throws Exception {
// Load the driver
Class.forName("mondrian.olap4j.MondrianOlap4jDriver");
// Connect
final Connection connection =
DriverManager.getConnection(
"jdbc:mondrian:" // Driver ident
+ "Jdbc=jdbc:hsqldb:file:foodmart/foodmart;" // Relational DB
+ "Catalog=file:foodmart/FoodMart.xml;"); // Catalog
// We are dealing with an olap connection. we must unwrap it.
final OlapConnection olapConnection = connection.unwrap(OlapConnection.class);
// Get a cube object.
Cube salesCube = olapConnection.getOlapSchema().getCubes().get("Sales");
// Build a query object.
Query myQuery = new Query("myQuery", salesCube);
// Lookup some dimensions
QueryDimension productDim = myQuery.getDimension("Product");
QueryDimension storeDim = myQuery.getDimension("Store");
QueryDimension timeDim = myQuery.getDimension("Time");
// Place dimensions on some axis
myQuery.getAxis(Axis.COLUMNS).addDimension(productDim);
myQuery.getAxis(Axis.ROWS).addDimension(storeDim);
myQuery.getAxis(Axis.FILTER).addDimension(timeDim);
// Including a member by metadata
Member year1997 =
salesCube.lookupMember(IdentifierNode.ofNames("Time", "1997").getSegmentList());
timeDim.include(year1997);
// Including a member by name parts
productDim.include(
Selection.Operator.CHILDREN,
IdentifierNode.ofNames("Product", "Drink", "Beverages").getSegmentList());
// We can also exclude members
productDim.exclude(
IdentifierNode.ofNames("Product", "Drink", "Beverages", "Carbonated Beverages")
.getSegmentList());
// Validate this query
myQuery.validate();
// Print!
System.out.println("/********************* QUERY ***********************/");
System.out.println(myQuery.getSelect().toString());
System.out.println("/********************* QUERY ***********************/");
System.out.println(" ");
System.out.println(" ");
System.out.println(" ");
System.out.println(" ");
System.out.println("/********************* RESULTS ***********************/");
RectangularCellSetFormatter formatter = new RectangularCellSetFormatter(false);
PrintWriter writer = new PrintWriter(System.out);
formatter.format(myQuery.execute(), writer);
writer.flush();
System.out.println("/********************* RESULTS ***********************/");
}
