@Override public String map(RefMetaDataTracker tracker, ReferenceContext ref, AlignmentContext context) { final String rods = getReferenceOrderedData(tracker); ReadBackedPileup basePileup = context.getBasePileup(); final StringBuilder s = new StringBuilder(); s.append(String.format("%s %s", basePileup.getPileupString((char) ref.getBase()), rods)); if (SHOW_VERBOSE) s.append(" ").append(createVerboseOutput(basePileup)); s.append("\n"); return s.toString(); }