public static List<AlignedCodonFrame> findMappingsForSequence(
SequenceI sequence, List<AlignedCodonFrame> mappings)
{
+ return findMappingsForSequenceAndOthers(sequence, mappings, null);
+ }
+
+ /**
+ * Returns a list of any mappings that are from or to the given (aligned or
+ * dataset) sequence, optionally limited to mappings involving one of a given
+ * list of sequences.
+ *
+ * @param sequence
+ * @param mappings
+ * @param filterList
+ * @return
+ */
+ public static List<AlignedCodonFrame> findMappingsForSequenceAndOthers(
+ SequenceI sequence, List<AlignedCodonFrame> mappings,
+ List<SequenceI> filterList)
+ {
List<AlignedCodonFrame> result = new ArrayList<AlignedCodonFrame>();
if (sequence == null || mappings == null)
{
{
if (mapping.involvesSequence(sequence))
{
- result.add(mapping);
+ if (filterList != null)
+ {
+ for (SequenceI otherseq : filterList)
+ {
+ SequenceI otherDataset = otherseq.getDatasetSequence();
+ if (otherseq == sequence
+ || otherseq == sequence.getDatasetSequence()
+ || (otherDataset != null && (otherDataset == sequence || otherDataset == sequence
+ .getDatasetSequence())))
+ {
+ // skip sequences in subset which directly relate to sequence
+ continue;
+ }
+ if (mapping.involvesSequence(otherseq))
+ {
+ // selected a mapping contained in subselect alignment
+ result.add(mapping);
+ break;
+ }
+ }
+ }
+ else
+ {
+ result.add(mapping);
+ }
}
}
return result;
}
+
+ /**
+ * Returns the total length of the supplied ranges, which may be as single
+ * [start, end] or multiple [start, end, start, end ...]
+ *
+ * @param ranges
+ * @return
+ */
+ public static int getLength(List<int[]> ranges)
+ {
+ if (ranges == null)
+ {
+ return 0;
+ }
+ int length = 0;
+ for (int[] range : ranges)
+ {
+ if (range.length % 2 != 0)
+ {
+ System.err.println("Error unbalance start/end ranges: "
+ + ranges.toString());
+ return 0;
+ }
+ for (int i = 0; i < range.length - 1; i += 2)
+ {
+ length += Math.abs(range[i + 1] - range[i]) + 1;
+ }
+ }
+ return length;
+ }
+
+ /**
+ * Answers true if any range includes the given value
+ *
+ * @param ranges
+ * @param value
+ * @return
+ */
+ public static boolean contains(List<int[]> ranges, int value)
+ {
+ if (ranges == null)
+ {
+ return false;
+ }
+ for (int[] range : ranges)
+ {
+ if (range[1] >= range[0] && value >= range[0] && value <= range[1])
+ {
+ /*
+ * value within ascending range
+ */
+ return true;
+ }
+ if (range[1] < range[0] && value <= range[0] && value >= range[1])
+ {
+ /*
+ * value within descending range
+ */
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Removes a specified number of positions from the start of a ranges list.
+ * For example, could be used to adjust cds ranges to allow for an incomplete
+ * start codon. Subranges are removed completely, or their start positions
+ * adjusted, until the required number of positions has been removed from the
+ * range. Reverse strand ranges are supported. The input array is not
+ * modified.
+ *
+ * @param removeCount
+ * @param ranges
+ * an array of [start, end, start, end...] positions
+ * @return a new array with the first removeCount positions removed
+ */
+ public static int[] removeStartPositions(int removeCount,
+ final int[] ranges)
+ {
+ if (removeCount <= 0)
+ {
+ return ranges;
+ }
+
+ int[] copy = Arrays.copyOf(ranges, ranges.length);
+ int sxpos = -1;
+ int cdspos = 0;
+ for (int x = 0; x < copy.length && sxpos == -1; x += 2)
+ {
+ cdspos += Math.abs(copy[x + 1] - copy[x]) + 1;
+ if (removeCount < cdspos)
+ {
+ /*
+ * we have removed enough, time to finish
+ */
+ sxpos = x;
+
+ /*
+ * increment start of first exon, or decrement if reverse strand
+ */
+ if (copy[x] <= copy[x + 1])
+ {
+ copy[x] = copy[x + 1] - cdspos + removeCount + 1;
+ }
+ else
+ {
+ copy[x] = copy[x + 1] + cdspos - removeCount - 1;
+ }
+ break;
+ }
+ }
+
+ if (sxpos > 0)
+ {
+ /*
+ * we dropped at least one entire sub-range - compact the array
+ */
+ int[] nxon = new int[copy.length - sxpos];
+ System.arraycopy(copy, sxpos, nxon, 0, copy.length - sxpos);
+ return nxon;
+ }
+ return copy;
+ }
}