question: private ODataFeed readFeedLogPerf ( String query , Map < String , String > params ) throws IOException , ODataException { long delta_time = System . currentTimeMillis ( ) ; ODataFeed feed = client . readFeed ( query , params ) ; log ( Level . DEBUG , "query(" + query + ") done in " + delta_time + "ms" ) ; return feed ; }
target:  Logs how much time an OData command consumed. 