package org.simantics.interop.test;
+import java.util.ArrayList;
+import java.util.Collection;
import java.util.List;
import java.util.Map.Entry;
import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
+import org.simantics.db.Session;
import org.simantics.db.Statement;
+import org.simantics.db.common.request.ReadRequest;
import org.simantics.db.common.utils.NameUtils;
import org.simantics.db.exception.DatabaseException;
import org.simantics.utils.datastructures.BijectionMap;
int hashCode;
public Modification(Resource leftSub, Resource rightSub, Statement leftStm, Statement rightStm) {
- super();
this.leftSub = leftSub;
this.rightSub = rightSub;
this.leftStm = leftStm;
this.rightStm = rightStm;
+ if (leftSub.getResourceId() < 0)
+ System.out.println();
+
hashCode = leftSub.hashCode() + rightSub.hashCode();
if (leftStm != null)
hashCode += leftStm.hashCode();
}
return sb.toString();
}
+
+ /**
+ * Adapts GraphChanges between A1 and B to A2 and B, when A2 is copy of A1.
+ * @param changes changes between A1 and B
+ * @param bijection changes between A1 and A2. Expected to be a bijection, so no additions or removals.
+ * @return
+ * @throws DatabaseException
+ */
+ public static GraphChanges adapt(Session session, GraphChanges changes, GraphChanges bijection) throws DatabaseException{
+ if (!changes.getResource1().equals(bijection.getResource1()))
+ throw new DatabaseException("Left side model must be the same");
+ //if (bijection.getDeletions().size() > 0 || bijection.getAdditions().size() > 0)
+ // throw new DatabaseException("Bijection change is not a bijection, it contains additions and/or removals");
+ BijectionMap<Resource, Resource> comparable = new BijectionMap<Resource, Resource>();
+ for (Entry<Resource, Resource> entry : changes.comparable.getEntries()) {
+ if (entry.getKey().equals(entry.getValue())) {
+ comparable.map(entry.getKey(), entry.getValue());
+ } else {
+ Resource nl = bijection.getComparable().getRight(entry.getKey());
+ if (nl == null) {
+ // Matching literal resources are not included in bijection map.
+ // TODO : should we check that the resource is literal?
+ // throw new DatabaseException("Did not find matching resource from bijection for " + entry.getKey());
+ continue;
+ }
+ comparable.map(nl, entry.getValue());
+ }
+ }
+ List<Statement> deletions = new ArrayList<Statement>(changes.getDeletions().size()); // Removals must be adapted from A1 to A2.
+ List<Statement> additions = new ArrayList<Statement>(changes.getAdditions()); // Additions can be copied, since they are statements in B.
+ session.syncRequest(new ReadRequest() {
+
+ @Override
+ public void run(ReadGraph graph) throws DatabaseException {
+ for (Statement del : changes.getDeletions()) {
+ Resource s1 = del.getSubject();
+ Resource s2 = bijection.getComparable().getRight(s1);
+ Resource p1 = del.getPredicate();
+ Resource p2 = bijection.getComparable().getRight(p1);
+ if (p2 == null)
+ p2 = p1;
+ Resource o1 = del.getObject();
+ Resource o2 = bijection.getComparable().getRight(o1);
+
+ if (s2 == null || p2 == null || o2 == null) {
+ throw new DatabaseException("Did not find matching statement from bijection for (" + s1 +","+p1+","+o1+"), got (" + s2 +","+p2+","+o2+")");
+ }
+ Statement stm2 = null;
+ for (Statement s : graph.getStatements(s2, p2)) {
+ if (s.getObject().equals(o2)) {
+ stm2 = s;
+ break;
+ }
+ }
+ if (stm2 == null) {
+ throw new DatabaseException("Did not find matching statement from bijection for (" + s1 +","+p1+","+o1+"), got (" + s2 +","+p2+","+o2+"), but it is not in DB!");
+ }
+ deletions.add(stm2);
+ }
+
+ }
+ });
+
+ List<Modification> modifications = new ArrayList<GraphChanges.Modification>(changes.getModifications().size());
+
+ session.syncRequest(new ReadRequest() {
+
+ @Override
+ public void run(ReadGraph graph) throws DatabaseException {
+ for (Modification mod : changes.getModifications()) {
+ Statement del = mod.leftStm;
+ Resource sub1 = mod.getLeftSub();
+ Resource sub2 = bijection.getComparable().getRight(sub1);
+ if (sub2 == null) {
+ throw new DatabaseException("Did not find matching resource from bijection for " + sub1);
+ }
+ Resource s1 = del.getSubject();
+ Resource s2 = bijection.getComparable().getRight(s1);
+ Resource p1 = del.getPredicate();
+ Resource p2 = bijection.getComparable().getRight(p1);
+ if (p2 == null)
+ p2 = p1;
+ Resource o1 = del.getObject();
+ Resource o2 = bijection.getComparable().getRight(o1);
+ if (mod.isLeftAsserted()) {
+ if (s2 == null)
+ s2 = s1;
+ if (o2 == null)
+ o2 = o1;
+ }
+
+ if (s2 == null || p2 == null) {
+ throw new DatabaseException("Did not find matching statement from bijection for (" + s1 +","+p1+","+o1+"), got (" + s2 +","+p2+","+o2+")");
+ }
+ Collection<Statement> stms = graph.getStatements(s2, p2);
+ Statement stm2 = null;
+ if (o2 == null) {
+ // Matching literal resources are not included in bijection map.
+ if (stms.size() == 1) {
+ stm2 = stms.iterator().next();
+ } else {
+ throw new DatabaseException("Did not find matching statement from bijection for (" + s1 +","+p1+","+o1+"), got (" + s2 +","+p2+","+o2+")");
+ }
+ } else {
+ for (Statement s : stms) {
+ if (s.getObject().equals(o2)) {
+ stm2 = s;
+ break;
+ }
+ }
+ }
+ if (stm2 == null) {
+ throw new DatabaseException("Did not find matching statement from bijection for (" + s1 +","+p1+","+o1+"), got (" + s2 +","+p2+","+o2+"), but it is not in DB!");
+ }
+ Modification mod2 = new Modification(sub2, mod.rightSub, stm2, mod.rightStm);
+ modifications.add(mod2);
+ }
+
+ }
+ });
+
+ return new GraphChanges(bijection.r2, changes.r2, deletions, additions, modifications, comparable);
+ }
}
Code Review / simantics / interop.git / blobdiff