BO 4.1 Universe Metadata extraction using Java SL SDK

Question

We are building an application using the SL SDK and are trying to extract the metadata from the Universe (like list of classes, dimensions, measures etc). We are able to connect to the server, retrieve the universe to the local machine; however, when we try to load the retreived local universe, we are facing an excception and not sure on how to proceed on the same.
     Below is the code snippet and the exception.
//Java code that caused the exception
RelationalBusinessLayer businessLayer = (RelationalBusinessLayer) local.load("E:\\Universe\\retrieval-2014-03-10-17-29-22\\eFashion_bl.blx");
System.out.println("Description-->"+businessLayer.getDescription());
//After setting the path and the required class path in the Command Prompt while executing the java file as below
java -cp "E:\Program Files (x86)\SAP BusinessObjects Enterprise XI 4.0\SL SDK\java\sl_sdk.jar;E:\Program Files (x86)\SAP BusinessObjects Enterprise XI 4.0\java\lib;E:\Program Files (x86)\SAP BusinessObjects Enterprise XI 4.0\java\lib\*;E:\Program Files (x86)\SAP BusinessObjects Enterprise XI 4.0\dataAccess\connectionServer\java;E:\Program Files (x86)\SAP BusinessObjects Enterprise XI 4.0\dataAccess\connectionServer\java\*;" UniverseBo -Dbusinessobjects.connectivity.directory="E:\Program Files (x86)\SAP BusinessObjects Enterprise XI 4.0\dataAccess\connectionServer"
     The following Exception occurred.
//Exception
Exception in thread "main" java.lang.UnsupportedOperationException
        at com.businessobjects.connectionserver.ConnectionServer.getInstance(ConnectionServer.java:165)
Any pointers to the problem and suggestions are appreciated.
Thanks,
Prasanna R

Answer 1

Hi Prithvi,
     We are trying to extract metadata through java sdk from BO 4.1,we had been able to extract the data upto class level but can not proceed further to extract data related to the objects such as "measures,"dimensions","filters",etc from a class as we can't find suitable methods to do so.Please have a look to the following code snippet:-
RelationalBusinessLayer businessLayer = (RelationalBusinessLayer) local.load("D:\\Universe\\retrieval-2014-03-17-15-47-46\\eFashion4.blx");    //loading local blx file
RootFolder rf =businessLayer.getRootFolder();
List<BlItem> getchildren=rf.getChildren();   //would return list of classes
Now we intend to extract objects(filters,dimensions,measures) from each of these BlItems.
Please help.
Regards,
Ashwani.