[pagoda] Move project to Scala

This commit includes a few changes:
- The repository still uses Maven to manage dependency but it is now a
  Scala project.
- The code has been ported from OWLAPI 3.4.10 to 5.1.20
- A proof of concept program using both RSAComb and PAGOdA has been
  added.

1 files changed, 0 insertions, 106 deletions

diff --git a/src/uk/ac/ox/cs/pagoda/rules/ApproxProgram.java b/src/uk/ac/ox/cs/pagoda/rules/ApproxProgram.java
deleted file mode 100644
index acbf354..0000000
--- a/src/uk/ac/ox/cs/pagoda/rules/ApproxProgram.java
+++ /dev/null
@@ -1,106 +0,0 @@
-package uk.ac.ox.cs.pagoda.rules;
-
-import org.semanticweb.HermiT.model.DLClause;
-import org.semanticweb.owlapi.model.OWLAxiom;
-import org.semanticweb.owlapi.model.OWLSubPropertyChainOfAxiom;
-import org.semanticweb.owlapi.model.OWLTransitiveObjectPropertyAxiom;
-import uk.ac.ox.cs.pagoda.owl.OWLHelper;
-import uk.ac.ox.cs.pagoda.rules.approximators.Approximator;
-
-import java.util.*;
-
-public abstract class ApproxProgram extends Program {
-
-        protected Approximator m_approx = null;
-        /**
-         * mapping from over-approximated DLClauses to DLClauses from the original ontology
-         */
-        Map<DLClause, Object> correspondence = new HashMap<DLClause, Object>();
-        
-        protected ApproxProgram() { initApproximator(); }
-        
-        protected abstract void initApproximator(); 
-
-        @Override
-        public void transform() {
-                super.transform();
-                Iterator<DLClause> iterClause = transitiveClauses.iterator();
-                for (Iterator<OWLTransitiveObjectPropertyAxiom> iterAxiom = transitiveAxioms.iterator(); iterAxiom.hasNext(); ) 
-                        addCorrespondence(iterClause.next(), iterAxiom.next()); 
-
-                iterClause = subPropChainClauses.iterator(); 
-                for (Iterator<OWLSubPropertyChainOfAxiom> iterAxiom = subPropChainAxioms.iterator(); iterAxiom.hasNext(); )
-                        addCorrespondence(iterClause.next(), iterAxiom.next()); 
-        }
-
-        @Override
-        public Collection<DLClause> convert2Clauses(DLClause clause) {
-                Collection<DLClause> ret = botStrategy.process(m_approx.convert(clause, clause));
-//              OWLAxiom correspondingAxiom = OWLHelper.getOWLAxiom(ontology, clause); 
-                for (DLClause newClause: ret) {
-                        addCorrespondence(newClause, clause);
-//                      addCorrespondence(newClause, correspondingAxiom);
-                }
-                return ret; 
-        }
-        
-        private void addCorrespondence(DLClause newClause, Object corresponding) {
-                Object object; 
-                if ((object = correspondence.get(newClause)) != null) {
-                        if (object.equals(corresponding))
-                                return ; 
-                        
-                        if (object instanceof DLClause) {
-                                DLClause c1 = (DLClause) object;
-                                if (c1.getHeadLength() == 1) return ; 
-                                DLClause c2 = (DLClause) corresponding; 
-                                if (c2.getHeadLength() == 1) {
-                                        correspondence.put(newClause, c2); 
-                                        return ; 
-                                }
-                                ClauseSet list = new ClauseSet(c1, c2);
-                                correspondence.put(newClause, list); 
-                        }
-                        else if (object instanceof ClauseSet){
-                                ClauseSet list = (ClauseSet) object; 
-                                list.add((DLClause) corresponding); 
-                        }
-                }
-                correspondence.put(newClause, corresponding);
-        }
-
-        public OWLAxiom getEquivalentAxiom(DLClause clause) {
-                Object obj  = correspondence.get(clause);
-                while (obj != null && obj instanceof DLClause && !obj.equals(clause) && correspondence.containsKey(obj))
-                        obj = correspondence.get(clause);
-                if (obj instanceof OWLAxiom) 
-                        return (OWLAxiom) obj; 
-                else if (obj != null)
-                        return OWLHelper.getOWLAxiom(ontology, (DLClause) obj);
-                else {
-                        return OWLHelper.getOWLAxiom(ontology, clause);
-                }
-        }
-
-        public DLClause getCorrespondingClause(DLClause clause) {
-                Object obj = correspondence.get(clause);
-                if (obj instanceof DLClause)
-                        return (DLClause) obj; 
-                else 
-                        return clause; 
-        }
-}
-
-class ClauseSet extends HashSet<DLClause> {
-
-        /**
-         *
-         */
-        private static final long serialVersionUID = 1L;
-
-        public ClauseSet(DLClause first, DLClause second) {
-                add(first);
-                add(second);
-        }
-
-}
\ No newline at end of file