Extract Classification attributes from part onject

public static Hashtable<String,Hashtable<String,ArrayList<String>>> getCSMAttributeOfPart(WTPart part) throws RemoteException, WTException{
  LOGGER.debug("ClassificationAtt :: getCSMAttributeOfPart: Start ");
  Hashtable<String,Hashtable<String,ArrayList<String>>> leafNodeAttList = new Hashtable<String,Hashtable<String,ArrayList<String>>>();
  if(part != null){
   IBAHolder partIBAHolder=null;
   partIBAHolder=IBAValueHelper.service.refreshAttributeContainer((IBAHolder)part, null, SessionHelper.manager.getLocale(),null);
   DefaultAttributeContainer partAttContainer  = (DefaultAttributeContainer)partIBAHolder.getAttributeContainer();
   if(partAttContainer !=null){
    AttributeDefDefaultView[] partAttDefDefaultView= partAttContainer.getAttributeDefinitions();
    for ( int i = 0; i < partAttDefDefaultView.length; i++ ){
     AbstractValueView[] theValues=partAttContainer.getAttributeValues(partAttDefDefaultView[i]);
     if(theValues.length!=0){
      for(int j=0;j<theValues.length; j++){
       if (theValues[j] instanceof ReferenceValueDefaultView){
        AbstractValueView theRefValue=theValues[j];
        ReferenceValueDefaultView referenceValue = (ReferenceValueDefaultView)theRefValue;
        String classnodeOID = referenceValue.getLiteIBAReferenceable().getReferencedLiteObject().getObjectID().toString();
        ClassificationNode classificationNode = (ClassificationNode)new ReferenceFactory().getReference(classnodeOID).getObject();
        IBAHolder nodeIBAHolder =(IBAHolder)IBAValueHelper.service.refreshAttributeContainer(classificationNode,"CSM",null,null);
        DefaultAttributeContainer theContainer_class = (DefaultAttributeContainer) nodeIBAHolder.getAttributeContainer();
        LOGGER.info("classificationNode : "+classificationNode.getName());
        Hashtable<String,ArrayList<String>> cmsNodeAtt= new Hashtable<String,ArrayList<String>>();
        if ( theContainer_class != null ){
         AttributeDefDefaultView[] theAtts_class = theContainer_class.getAttributeDefinitions();
         LOGGER.debug("ReadClassificationAttribute:: attribue leanth : "+theAtts_class.length);
         for ( int ii = 0; ii < theAtts_class.length; ii++ ) {
          LOGGER.debug("ReadClassificationAttribute:: attribue name: "+theAtts_class[ii].getDisplayName());
          AbstractValueView[] theValues_class = partAttContainer.getAttributeValues(theAtts_class[ii]);
          if ( theValues_class != null && theValues_class.length>0) {
           AbstractValueView theValues_obj_class=null;
           ArrayList<String> valueList = new ArrayList<String>();
           for ( int k = 0; k < theValues_class.length; k++ ) {
            theValues_obj_class=theValues_class[k];
            if(theValues_obj_class !=null){
             LOGGER.debug("ReadClassificationAttribute:: attribue value: "+IBAValueUtility.getLocalizedIBAValueDisplayString(theValues_obj_class, SessionHelper.manager.getLocale()));
             valueList.add(IBAValueUtility.getLocalizedIBAValueDisplayString(theValues_obj_class, SessionHelper.manager.getLocale()).trim());
            }
           }
           cmsNodeAtt.put(theAtts_class[ii].getDisplayName().trim(), valueList);
          }
         }
        }
        leafNodeAttList.put(classificationNode.getName().trim().toString(), cmsNodeAtt);
       }
      }
     }
    }
   }
   LOGGER.debug("Leaf Node Att List : "+leafNodeAttList);
  }
  else{
   LOGGER.error("Input wtpart for classification search is null");
  }
  LOGGER.debug("ClassificationAtt :: getCSMAttributeOfPart: End ");
  return leafNodeAttList;
 }