private List<Get> createGetList(List<SpanQuery> spanQueryList, byte[] columnFamily, Filter defaultFilter) {
        if (CollectionUtils.isEmpty(spanQueryList)) {
            return Collections.emptyList();
        }
        final List<Get> getList = new ArrayList<>(spanQueryList.size());
        for (SpanQuery spanQuery : spanQueryList) {
            Filter spanQueryFilter = spanQuery.getHbaseFilter();
            Filter filter = HBaseUtils.newFilterList(defaultFilter, spanQueryFilter);

            final Get get = createGet(spanQuery.getTransactionId(), columnFamily, filter);
            getList.add(get);
        }
        return getList;
    }
@author Woonduk Kang(emeroad)
@author Taejin Koo
web/src/main/java/com/navercorp/pinpoint/web/dao/hbase/HbaseTraceDaoV2.java