+ /*
+ * if a map is present, unless it is 1:1 and has no SequenceI mate, it cannot be a primary reference.
+ */
+ if (map != null)
+ {
+ if (map.getTo() != null)
+ {
+ return false;
+ }
+ if (map.getMap().getFromRatio() != map.getMap().getToRatio()
+ || map.getMap().getFromRatio() != 1)
+ {
+ return false;
+ }
+ // check map is between identical single contiguous ranges
+ List<int[]> fromRanges = map.getMap().getFromRanges();
+ List<int[]> toRanges = map.getMap().getToRanges();
+ if (fromRanges.size() != 1 || toRanges.size() != 1)
+ {
+ return false;
+ }
+ if (fromRanges.get(0)[0] != toRanges.get(0)[0]
+ || fromRanges.get(0)[1] != toRanges.get(0)[1])
+ {
+ return false;
+ }
+ }
+ if (version == null)
+ {
+ // no version string implies the reference has not been verified at all.
+ return false;
+ }
+ // tricky - this test really needs to search the sequence's set of dbrefs to
+ // see if there is a primary reference that derived this reference.
+ String ucv = version.toUpperCase();
+ for (String primsrc : Arrays.asList(DBRefSource.allSources()))
+ {
+ if (ucv.startsWith(primsrc.toUpperCase()))
+ {
+ // by convention, many secondary references inherit the primary
+ // reference's
+ // source string as a prefix for any version information from the
+ // secondary reference.
+ return false;
+ }
+ }
+ return true;