for (int[] range : map.getFromRanges())
{
- addRange(range, fromShifts);
+ MappingUtils.addRange(range, fromShifts);
}
for (int[] range : map.getToRanges())
{
- addRange(range, toShifts);
+ MappingUtils.addRange(range, toShifts);
}
}
/**
- * Adds the given range to a list of ranges. If the new range just extends
- * existing ranges, the current endpoint is updated instead.
- *
- * @param range
- * @param addTo
- */
- static void addRange(int[] range, List<int[]> addTo)
- {
- /*
- * list is empty - add to it!
- */
- if (addTo.size() == 0)
- {
- addTo.add(range);
- return;
- }
-
- int[] last = addTo.get(addTo.size() - 1);
- boolean lastForward = last[1] >= last[0];
- boolean newForward = range[1] >= range[0];
-
- /*
- * contiguous range in the same direction - just update endpoint
- */
- if (lastForward == newForward && last[1] == range[0])
- {
- last[1] = range[1];
- return;
- }
-
- /*
- * next range starts at +1 in forward sense - update endpoint
- */
- if (lastForward && newForward && range[0] == last[1] + 1)
- {
- last[1] = range[1];
- return;
- }
-
- /*
- * next range starts at -1 in reverse sense - update endpoint
- */
- if (!lastForward && !newForward && range[0] == last[1] - 1)
- {
- last[1] = range[1];
- return;
- }
-
- /*
- * just add the new range
- */
- addTo.add(range);
- }
-
- /**
* Returns true if mapping is from forward strand, false if from reverse
* strand. Result is just based on the first 'from' range that is not a single
* position. Default is true unless proven to be false. Behaviour is not well