@Override
  public DataStore getCurrentDataStore() {
    if (currentDataStore == null) {
      currentDataStore = getDataStore(currentInstanceDefinition);
    }
    return currentDataStore;
  }
Instantiates the data store associated with the instance.

@param instanceDefinition the view instance definition
@return the data store object associated with view instance
ambari-server/src/main/java/org/apache/ambari/server/view/ViewDataMigrationContextImpl.java