/*
- * Jalview - A Sequence Alignment Editor and Viewer (Version 2.4)
- * Copyright (C) 2008 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
+ * This file is part of Jalview.
*
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *
+ * Jalview is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
*/
package jalview.analysis;
-import java.util.*;
-
-import jalview.datamodel.*;
-import jalview.util.*;
+import jalview.analysis.scoremodels.PIDModel;
+import jalview.analysis.scoremodels.SimilarityParams;
+import jalview.datamodel.AlignmentAnnotation;
+import jalview.datamodel.AlignmentI;
+import jalview.datamodel.AlignmentOrder;
+import jalview.datamodel.BinaryNode;
+import jalview.datamodel.SequenceFeature;
+import jalview.datamodel.SequenceGroup;
+import jalview.datamodel.SequenceI;
+import jalview.datamodel.SequenceNode;
+import jalview.util.QuickSort;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
/**
* Routines for manipulating the order of a multiple sequence alignment TODO:
*/
public class AlignmentSorter
{
+ /*
+ * todo: refactor searches to follow a basic pattern: (search property, last
+ * search state, current sort direction)
+ */
static boolean sortIdAscending = true;
static int lastGroupHash = 0;
static boolean sortOrderAscending = true;
- static NJTree lastTree = null;
+ static TreeModel lastTree = null;
static boolean sortTreeAscending = true;
- private static String lastSortByScore;
+ /*
+ * last Annotation Label used for sort by Annotation score
+ */
+ private static String lastSortByAnnotation;
+
+ /*
+ * string hash of last arguments to sortByFeature
+ * (sort order toggles if this is unchanged between sorts)
+ */
+ private static String sortByFeatureCriteria;
+
+ private static boolean sortByFeatureAscending = true;
+
+ private static boolean sortLengthAscending;
/**
- * Sort by Percentage Identity w.r.t. s
+ * Sorts sequences in the alignment by Percentage Identity with the given
+ * reference sequence, sorting the highest identity to the top
*
* @param align
- * AlignmentI
+ * AlignmentI
* @param s
- * SequenceI
- * @param tosort
- * sequences from align that are to be sorted.
+ * SequenceI
+ * @param end
*/
- public static void sortByPID(AlignmentI align, SequenceI s,
- SequenceI[] tosort)
+ public static void sortByPID(AlignmentI align, SequenceI s)
{
int nSeq = align.getHeight();
float[] scores = new float[nSeq];
SequenceI[] seqs = new SequenceI[nSeq];
+ String refSeq = s.getSequenceAsString();
+ SimilarityParams pidParams = new SimilarityParams(true, true, true,
+ true);
for (int i = 0; i < nSeq; i++)
{
- scores[i] = Comparison.PID(align.getSequenceAt(i)
- .getSequenceAsString(), s.getSequenceAsString());
+ scores[i] = (float) PIDModel.computePID(
+ align.getSequenceAt(i).getSequenceAsString(), refSeq,
+ pidParams);
seqs[i] = align.getSequenceAt(i);
}
- QuickSort.sort(scores, 0, scores.length - 1, seqs);
+ QuickSort.sort(scores, seqs);
setReverseOrder(align, seqs);
}
* Reverse the order of the sort
*
* @param align
- * DOCUMENT ME!
+ * DOCUMENT ME!
* @param seqs
- * DOCUMENT ME!
+ * DOCUMENT ME!
*/
private static void setReverseOrder(AlignmentI align, SequenceI[] seqs)
{
}
// NOTE: DO NOT USE align.setSequenceAt() here - it will NOT work
- for (int i = 0; i < len; i++)
+ List<SequenceI> asq = align.getSequences();
+ synchronized (asq)
{
- // SequenceI tmp = seqs[i];
- align.getSequences().setElementAt(seqs[nSeq - i - 1], i);
- align.getSequences().setElementAt(seqs[i], nSeq - i - 1);
+ for (int i = 0; i < len; i++)
+ {
+ // SequenceI tmp = seqs[i];
+ asq.set(i, seqs[nSeq - i - 1]);
+ asq.set(nSeq - i - 1, seqs[i]);
+ }
}
}
* Sets the Alignment object with the given sequences
*
* @param align
- * Alignment object to be updated
+ * Alignment object to be updated
* @param tmp
- * sequences as a vector
+ * sequences as a vector
*/
- private static void setOrder(AlignmentI align, Vector tmp)
+ private static void setOrder(AlignmentI align, List<SequenceI> tmp)
{
setOrder(align, vectorSubsetToArray(tmp, align.getSequences()));
}
* Sets the Alignment object with the given sequences
*
* @param align
- * DOCUMENT ME!
+ * DOCUMENT ME!
* @param seqs
- * sequences as an array
+ * sequences as an array
*/
public static void setOrder(AlignmentI align, SequenceI[] seqs)
{
// NOTE: DO NOT USE align.setSequenceAt() here - it will NOT work
- Vector algn = align.getSequences();
- Vector tmp = new Vector();
-
- for (int i = 0; i < seqs.length; i++)
+ List<SequenceI> algn = align.getSequences();
+ synchronized (algn)
{
- if (algn.contains(seqs[i]))
+ List<SequenceI> tmp = new ArrayList<>();
+
+ for (int i = 0; i < seqs.length; i++)
{
- tmp.addElement(seqs[i]);
+ if (algn.contains(seqs[i]))
+ {
+ tmp.add(seqs[i]);
+ }
}
- }
- algn.removeAllElements();
- // User may have hidden seqs, then clicked undo or redo
- for (int i = 0; i < tmp.size(); i++)
- {
- algn.addElement(tmp.elementAt(i));
+ algn.clear();
+ // User may have hidden seqs, then clicked undo or redo
+ for (int i = 0; i < tmp.size(); i++)
+ {
+ algn.add(tmp.get(i));
+ }
}
-
}
/**
* Sorts by ID. Numbers are sorted before letters.
*
* @param align
- * The alignment object to sort
+ * The alignment object to sort
*/
public static void sortByID(AlignmentI align)
{
}
/**
+ * Sorts by sequence length
+ *
+ * @param align
+ * The alignment object to sort
+ */
+ public static void sortByLength(AlignmentI align)
+ {
+ int nSeq = align.getHeight();
+
+ float[] length = new float[nSeq];
+ SequenceI[] seqs = new SequenceI[nSeq];
+
+ for (int i = 0; i < nSeq; i++)
+ {
+ seqs[i] = align.getSequenceAt(i);
+ length[i] = (seqs[i].getEnd() - seqs[i].getStart());
+ }
+
+ QuickSort.sort(length, seqs);
+
+ if (sortLengthAscending)
+ {
+ setReverseOrder(align, seqs);
+ }
+ else
+ {
+ setOrder(align, seqs);
+ }
+
+ sortLengthAscending = !sortLengthAscending;
+ }
+
+ /**
* Sorts the alignment by size of group. <br>
* Maintains the order of sequences in each group by order in given alignment
* object.
*
* @param align
- * sorts the given alignment object by group
+ * sorts the given alignment object by group
*/
public static void sortByGroup(AlignmentI align)
{
// MAINTAINS ORIGNAL SEQUENCE ORDER,
// ORDERS BY GROUP SIZE
- Vector groups = new Vector();
+ List<SequenceGroup> groups = new ArrayList<>();
if (groups.hashCode() != lastGroupHash)
{
// SORTS GROUPS BY SIZE
// ////////////////////
- for (int i = 0; i < align.getGroups().size(); i++)
+ for (SequenceGroup sg : align.getGroups())
{
- SequenceGroup sg = (SequenceGroup) align.getGroups().elementAt(i);
-
for (int j = 0; j < groups.size(); j++)
{
- SequenceGroup sg2 = (SequenceGroup) groups.elementAt(j);
+ SequenceGroup sg2 = groups.get(j);
if (sg.getSize() > sg2.getSize())
{
- groups.insertElementAt(sg, j);
+ groups.add(j, sg);
break;
}
if (!groups.contains(sg))
{
- groups.addElement(sg);
+ groups.add(sg);
}
}
// NOW ADD SEQUENCES MAINTAINING ALIGNMENT ORDER
// /////////////////////////////////////////////
- Vector seqs = new Vector();
+ List<SequenceI> seqs = new ArrayList<>();
for (int i = 0; i < groups.size(); i++)
{
- SequenceGroup sg = (SequenceGroup) groups.elementAt(i);
+ SequenceGroup sg = groups.get(i);
SequenceI[] orderedseqs = sg.getSequencesInOrder(align);
for (int j = 0; j < orderedseqs.length; j++)
{
- seqs.addElement(orderedseqs[j]);
+ seqs.add(orderedseqs[j]);
}
}
}
/**
- * Converts Vector to array. java 1.18 does not have Vector.toArray()
+ * Select sequences in order from tmp that is present in mask, and any
+ * remaining sequences in mask not in tmp
*
* @param tmp
- * Vector of SequenceI objects
- *
- * @return array of Sequence[]
- */
- private static SequenceI[] vectorToArray(Vector tmp)
- {
- SequenceI[] seqs = new SequenceI[tmp.size()];
-
- for (int i = 0; i < tmp.size(); i++)
- {
- seqs[i] = (SequenceI) tmp.elementAt(i);
- }
-
- return seqs;
- }
-
- /**
- * DOCUMENT ME!
- *
- * @param tmp
- * DOCUMENT ME!
+ * thread safe collection of sequences
* @param mask
- * DOCUMENT ME!
+ * thread safe collection of sequences
*
- * @return DOCUMENT ME!
+ * @return intersect(tmp,mask)+intersect(complement(tmp),mask)
*/
- private static SequenceI[] vectorSubsetToArray(Vector tmp, Vector mask)
+ private static SequenceI[] vectorSubsetToArray(List<SequenceI> tmp,
+ List<SequenceI> mask)
{
- Vector seqs = new Vector();
- int i;
+ // or?
+ // tmp2 = tmp.retainAll(mask);
+ // return tmp2.addAll(mask.removeAll(tmp2))
+
+ ArrayList<SequenceI> seqs = new ArrayList<>();
+ int i, idx;
boolean[] tmask = new boolean[mask.size()];
for (i = 0; i < mask.size(); i++)
for (i = 0; i < tmp.size(); i++)
{
- Object sq = tmp.elementAt(i);
-
- if (mask.contains(sq) && tmask[mask.indexOf(sq)])
+ SequenceI sq = tmp.get(i);
+ idx = mask.indexOf(sq);
+ if (idx > -1 && tmask[idx])
{
- tmask[mask.indexOf(sq)] = false;
- seqs.addElement(sq);
+ tmask[idx] = false;
+ seqs.add(sq);
}
}
{
if (tmask[i])
{
- seqs.addElement(mask.elementAt(i));
+ seqs.add(mask.get(i));
}
}
- return vectorToArray(seqs);
+ return seqs.toArray(new SequenceI[seqs.size()]);
}
/**
* Sorts by a given AlignmentOrder object
*
* @param align
- * Alignment to order
+ * Alignment to order
* @param order
- * specified order for alignment
+ * specified order for alignment
*/
public static void sortBy(AlignmentI align, AlignmentOrder order)
{
// Get an ordered vector of sequences which may also be present in align
- Vector tmp = order.getOrder();
+ List<SequenceI> tmp = order.getOrder();
if (lastOrder == order)
{
}
else
{
- setReverseOrder(align, vectorSubsetToArray(tmp, align.getSequences()));
+ setReverseOrder(align,
+ vectorSubsetToArray(tmp, align.getSequences()));
}
}
* DOCUMENT ME!
*
* @param align
- * alignment to order
+ * alignment to order
* @param tree
- * tree which has
+ * tree which has
*
* @return DOCUMENT ME!
*/
- private static Vector getOrderByTree(AlignmentI align, NJTree tree)
+ private static List<SequenceI> getOrderByTree(AlignmentI align,
+ TreeModel tree)
{
int nSeq = align.getHeight();
- Vector tmp = new Vector();
+ List<SequenceI> tmp = new ArrayList<>();
tmp = _sortByTree(tree.getTopNode(), tmp, align.getSequences());
// TODO: JBPNote - decide if this is always an error
// (eg. not when a tree is associated to another alignment which has more
// sequences)
- if (tmp.size() < nSeq)
+ if (tmp.size() != nSeq)
{
addStrays(align, tmp);
}
if (tmp.size() != nSeq)
{
- System.err.println("ERROR: tmp.size()=" + tmp.size() + " != nseq="
- + nSeq + " in getOrderByTree");
+ System.err.println("WARNING: tmp.size()=" + tmp.size() + " != nseq="
+ + nSeq
+ + " in getOrderByTree - tree contains sequences not in alignment");
}
}
* Sorts the alignment by a given tree
*
* @param align
- * alignment to order
+ * alignment to order
* @param tree
- * tree which has
+ * tree which has
*/
- public static void sortByTree(AlignmentI align, NJTree tree)
+ public static void sortByTree(AlignmentI align, TreeModel tree)
{
- Vector tmp = getOrderByTree(align, tree);
+ List<SequenceI> tmp = getOrderByTree(align, tree);
// tmp should properly permute align with tree.
if (lastTree != tree)
}
else
{
- setReverseOrder(align, vectorSubsetToArray(tmp, align.getSequences()));
+ setReverseOrder(align,
+ vectorSubsetToArray(tmp, align.getSequences()));
}
}
* DOCUMENT ME!
*
* @param align
- * DOCUMENT ME!
- * @param seqs
- * DOCUMENT ME!
+ * DOCUMENT ME!
+ * @param tmp
+ * DOCUMENT ME!
*/
- private static void addStrays(AlignmentI align, Vector seqs)
+ private static void addStrays(AlignmentI align, List<SequenceI> tmp)
{
int nSeq = align.getHeight();
for (int i = 0; i < nSeq; i++)
{
- if (!seqs.contains(align.getSequenceAt(i)))
+ if (!tmp.contains(align.getSequenceAt(i)))
{
- seqs.addElement(align.getSequenceAt(i));
+ tmp.add(align.getSequenceAt(i));
}
}
- if (nSeq != seqs.size())
+ if (nSeq != tmp.size())
{
System.err
.println("ERROR: Size still not right even after addStrays");
* DOCUMENT ME!
*
* @param node
- * DOCUMENT ME!
+ * DOCUMENT ME!
* @param tmp
- * DOCUMENT ME!
+ * DOCUMENT ME!
* @param seqset
- * DOCUMENT ME!
+ * DOCUMENT ME!
*
* @return DOCUMENT ME!
*/
- private static Vector _sortByTree(SequenceNode node, Vector tmp,
- Vector seqset)
+ private static List<SequenceI> _sortByTree(BinaryNode node,
+ List<SequenceI> tmp, List<SequenceI> seqset)
{
if (node == null)
{
return tmp;
}
- SequenceNode left = (SequenceNode) node.left();
- SequenceNode right = (SequenceNode) node.right();
+ BinaryNode left = (BinaryNode) node.left();
+ BinaryNode right = (BinaryNode) node.right();
if ((left == null) && (right == null))
{
- if (!node.isPlaceholder() && (node.element() != null))
+ if (!(node instanceof SequenceNode
+ && ((SequenceNode) node).isPlaceholder())
+ && (node.element() != null))
{
if (node.element() instanceof SequenceI)
{
- if (!tmp.contains(node.element()))
+ if (!tmp.contains(node.element())) // && (seqset==null ||
+ // seqset.size()==0 ||
+ // seqset.contains(tmp)))
{
- tmp.addElement((SequenceI) node.element());
+ tmp.add((SequenceI) node.element());
}
}
}
for (int i = 0; i < alignment.length; i++)
{
- ids[i] = (new Float(alignment[i].getName().substring(8)))
+ ids[i] = (Float.valueOf(alignment[i].getName().substring(8)))
.floatValue();
}
* particular scoreLabel. Or reverse if same label was used previously
*
* @param scoreLabel
- * exact label for sequence associated AlignmentAnnotation
- * scores to use for sorting.
+ * exact label for sequence associated AlignmentAnnotation scores to
+ * use for sorting.
* @param alignment
- * sequences to be sorted
+ * sequences to be sorted
*/
public static void sortByAnnotationScore(String scoreLabel,
AlignmentI alignment)
{
SequenceI[] seqs = alignment.getSequencesArray();
boolean[] hasScore = new boolean[seqs.length]; // per sequence score
- // presence
+ // presence
int hasScores = 0; // number of scores present on set
double[] scores = new double[seqs.length];
double min = 0, max = 0;
hasScores++;
hasScore[i] = true;
scores[i] = scoreAnn[0].getScore(); // take the first instance of this
- // score.
+ // score.
if (hasScores == 1)
{
max = min = scores[i];
{
if (!hasScore[i])
{
- scores[i] = (max + i);
+ scores[i] = (max + i + 1.0);
}
}
}
jalview.util.QuickSort.sort(scores, seqs);
- if (lastSortByScore != scoreLabel)
+ if (lastSortByAnnotation != scoreLabel)
{
- lastSortByScore = scoreLabel;
+ lastSortByAnnotation = scoreLabel;
setOrder(alignment, seqs);
}
else
setReverseOrder(alignment, seqs);
}
}
+
+ /**
+ * types of feature ordering: Sort by score : average score - or total score -
+ * over all features in region Sort by feature label text: (or if null -
+ * feature type text) - numerical or alphabetical Sort by feature density:
+ * based on counts - ignoring individual text or scores for each feature
+ */
+ public static String FEATURE_SCORE = "average_score";
+
+ public static String FEATURE_LABEL = "text";
+
+ public static String FEATURE_DENSITY = "density";
+
+ /**
+ * Sort sequences by feature score or density, optionally restricted by
+ * feature types, feature groups, or alignment start/end positions.
+ * <p>
+ * If the sort is repeated for the same combination of types and groups, sort
+ * order is reversed.
+ *
+ * @param featureTypes
+ * a list of feature types to include (or null for all)
+ * @param groups
+ * a list of feature groups to include (or null for all)
+ * @param startCol
+ * start column position to include (base zero)
+ * @param endCol
+ * end column position to include (base zero)
+ * @param alignment
+ * the alignment to be sorted
+ * @param method
+ * either "average_score" or "density" ("text" not yet implemented)
+ */
+ public static void sortByFeature(List<String> featureTypes,
+ List<String> groups, final int startCol, final int endCol,
+ AlignmentI alignment, String method)
+ {
+ if (method != FEATURE_SCORE && method != FEATURE_LABEL
+ && method != FEATURE_DENSITY)
+ {
+ String msg = String.format(
+ "Implementation Error - sortByFeature method must be either '%s' or '%s'",
+ FEATURE_SCORE, FEATURE_DENSITY);
+ System.err.println(msg);
+ return;
+ }
+
+ flipFeatureSortIfUnchanged(method, featureTypes, groups, startCol,
+ endCol);
+
+ SequenceI[] seqs = alignment.getSequencesArray();
+
+ boolean[] hasScore = new boolean[seqs.length]; // per sequence score
+ // presence
+ int hasScores = 0; // number of scores present on set
+ double[] scores = new double[seqs.length];
+ int[] seqScores = new int[seqs.length];
+ Object[][] feats = new Object[seqs.length][];
+ double min = 0d;
+ double max = 0d;
+
+ for (int i = 0; i < seqs.length; i++)
+ {
+ /*
+ * get sequence residues overlapping column region
+ * and features for residue positions and specified types
+ */
+ String[] types = featureTypes == null ? null
+ : featureTypes.toArray(new String[featureTypes.size()]);
+ List<SequenceFeature> sfs = seqs[i].findFeatures(startCol + 1,
+ endCol + 1, types);
+
+ seqScores[i] = 0;
+ scores[i] = 0.0;
+
+ Iterator<SequenceFeature> it = sfs.listIterator();
+ while (it.hasNext())
+ {
+ SequenceFeature sf = it.next();
+
+ /*
+ * accept all features with null or empty group, otherwise
+ * check group is one of the currently visible groups
+ */
+ String featureGroup = sf.getFeatureGroup();
+ if (groups != null && featureGroup != null
+ && !"".equals(featureGroup)
+ && !groups.contains(featureGroup))
+ {
+ it.remove();
+ }
+ else
+ {
+ float score = sf.getScore();
+ if (FEATURE_SCORE.equals(method) && !Float.isNaN(score))
+ {
+ if (seqScores[i] == 0)
+ {
+ hasScores++;
+ }
+ seqScores[i]++;
+ hasScore[i] = true;
+ scores[i] += score;
+ // take the first instance of this score // ??
+ }
+ }
+ }
+
+ feats[i] = sfs.toArray(new SequenceFeature[sfs.size()]);
+ if (!sfs.isEmpty())
+ {
+ if (method == FEATURE_LABEL)
+ {
+ // order the labels by alphabet (not yet implemented)
+ String[] labs = new String[sfs.size()];
+ for (int l = 0; l < sfs.size(); l++)
+ {
+ SequenceFeature sf = sfs.get(l);
+ String description = sf.getDescription();
+ labs[l] = (description != null ? description : sf.getType());
+ }
+ QuickSort.sort(labs, feats[i]);
+ }
+ }
+ if (hasScore[i])
+ {
+ // compute average score
+ scores[i] /= seqScores[i];
+ // update the score bounds.
+ if (hasScores == 1)
+ {
+ min = scores[i];
+ max = min;
+ }
+ else
+ {
+ max = Math.max(max, scores[i]);
+ min = Math.min(min, scores[i]);
+ }
+ }
+ }
+
+ if (FEATURE_SCORE.equals(method))
+ {
+ if (hasScores == 0)
+ {
+ return; // do nothing - no scores present to sort by.
+ }
+ // pad score matrix
+ if (hasScores < seqs.length)
+ {
+ for (int i = 0; i < seqs.length; i++)
+ {
+ if (!hasScore[i])
+ {
+ scores[i] = (max + 1 + i);
+ }
+ else
+ {
+ // int nf = (feats[i] == null) ? 0
+ // : ((SequenceFeature[]) feats[i]).length;
+ // // System.err.println("Sorting on Score: seq " +
+ // seqs[i].getName()
+ // + " Feats: " + nf + " Score : " + scores[i]);
+ }
+ }
+ }
+ QuickSort.sortByDouble(scores, seqs, sortByFeatureAscending);
+ }
+ else if (FEATURE_DENSITY.equals(method))
+ {
+ for (int i = 0; i < seqs.length; i++)
+ {
+ int featureCount = feats[i] == null ? 0
+ : ((SequenceFeature[]) feats[i]).length;
+ scores[i] = featureCount;
+ // System.err.println("Sorting on Density: seq "+seqs[i].getName()+
+ // " Feats: "+featureCount+" Score : "+scores[i]);
+ }
+ QuickSort.sortByDouble(scores, seqs, sortByFeatureAscending);
+ }
+
+ setOrder(alignment, seqs);
+ }
+
+ /**
+ * Builds a string hash of criteria for sorting, and if unchanged from last
+ * time, reverse the sort order
+ *
+ * @param method
+ * @param featureTypes
+ * @param groups
+ * @param startCol
+ * @param endCol
+ */
+ protected static void flipFeatureSortIfUnchanged(String method,
+ List<String> featureTypes, List<String> groups,
+ final int startCol, final int endCol)
+ {
+ StringBuilder sb = new StringBuilder(64);
+ sb.append(startCol).append(method).append(endCol);
+ if (featureTypes != null)
+ {
+ Collections.sort(featureTypes);
+ sb.append(featureTypes.toString());
+ }
+ if (groups != null)
+ {
+ Collections.sort(groups);
+ sb.append(groups.toString());
+ }
+ String scoreCriteria = sb.toString();
+
+ /*
+ * if resorting on the same criteria, toggle sort order
+ */
+ if (sortByFeatureCriteria == null
+ || !scoreCriteria.equals(sortByFeatureCriteria))
+ {
+ sortByFeatureAscending = true;
+ }
+ else
+ {
+ sortByFeatureAscending = !sortByFeatureAscending;
+ }
+ sortByFeatureCriteria = scoreCriteria;
+ }
+
}