Listing attributes of a particular level in a dimension via API call

Question

Hi,
We are using the Oracle OLAP Java api's to browse the metadata and contents of an OLAP schema. We need to be able to access an api that lists just the Attributes that are mapped to a particular Level within a dimension.
Note the following snippet of code can be added to the OLAP Java examples. This displays a list of key value pairs. The keys are the unique level identifier in the form "HIERARCHY::LEVEL::ID", the value is the contents of the specified attribute. The result would be suitable for input to a combo box control in a JSP or similar.
public static void getFilters(String dimension, String hierarchy, String level, String attribute) throws Exception {
MdmPrimaryDimension mdmDimension = getMdmPrimaryDimension(dimension);
MdmHierarchy mdmHierarchy = getContext().getHierarchyByName(mdmDimension, hierarchy);
MdmLevel mdmLevel = getContext().getLevelByName((MdmLevelHierarchy) mdmHierarchy, level);
MdmAttribute mdmAttribute = getContext().getAttributeByName( mdmDimension, attribute);
StringSource levelSource = (StringSource)mdmLevel.getSource();
StringSource attributeSource = (StringSource)mdmAttribute.getSource();
Source querySource = attributeSource.join(levelSource);
try {
prepareAndCommit();
getContext().displayResult(querySource);
} catch (oracle.olapi.data.source.UnmatchedInputsException e) {
System.out.println("UNMATCHED ID's " + e.getUnmatchedInputIDs());
Prior to calling this we need a way of prompting the user to select the appropriate attribute to display in the value field of the list. We can get the full list of attributes for the Dimension with the following code snippet:
MdmPrimaryDimension mdmDimension = getMdmPrimaryDimension(dimension);
List attributes = mdmDimension.getAttributes();
However calling the code below returns an empty attribute list.
MdmPrimaryDimension mdmDimension = getMdmPrimaryDimension(dimension);
MdmHierarchy mdmHierarchy = getContext().getHierarchyByName(mdmDimension, hierarchy);
MdmLevel mdmLevel = getContext().getLevelByName((MdmLevelHierarchy) mdmHierarchy, level);
List attributes = mdmLevel.getAttributes();
What api's can we call that would let us list just the attributes mapped to the Level in question?
Any help is appreciated.
Regards,
Ed

Answer 1

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