+ public static Set<Taxonomy> obtainAllDistinctTaxonomies( final PhylogenyNode node ) {
+ final List<PhylogenyNode> descs = node.getAllExternalDescendants();
+ final Set<Taxonomy> tax_set = new HashSet<Taxonomy>();
+ for( final PhylogenyNode n : descs ) {
+ if ( n.getNodeData().isHasTaxonomy() && !n.getNodeData().getTaxonomy().isEmpty() ) {
+ tax_set.add( n.getNodeData().getTaxonomy() );
+ }
+ }
+ return tax_set;
+ }
+
+ /**
+ * Returns the set of distinct taxonomies of
+ * all external nodes of node.
+ * If at least one the external nodes has no taxonomy,
+ * null is returned.
+ *
+ */
+ public static Set<Taxonomy> obtainDistinctTaxonomies( final PhylogenyNode node ) {
+ final List<PhylogenyNode> descs = node.getAllExternalDescendants();
+ final Set<Taxonomy> tax_set = new HashSet<Taxonomy>();
+ for( final PhylogenyNode n : descs ) {
+ if ( !n.getNodeData().isHasTaxonomy() || n.getNodeData().getTaxonomy().isEmpty() ) {
+ return null;
+ }
+ tax_set.add( n.getNodeData().getTaxonomy() );
+ }
+ return tax_set;
+ }
+