From 240c4a4d8efbb302feedccac76edd5c28d6d7150 Mon Sep 17 00:00:00 2001
From: luukkainen <luukkainen@ac1ea38d-2e2b-0410-8846-a27921b304fc>
Date: Mon, 24 Oct 2011 15:38:19 +0000
Subject: [PATCH] In some cases Comparator matched incorrect resources.

git-svn-id: https://www.simantics.org/svn/simantics/interoperability/trunk@22935 ac1ea38d-2e2b-0410-8846-a27921b304fc
---
 .../interop/test/GraphComparator.java         | 67 ++++++++++++++++++-
 1 file changed, 66 insertions(+), 1 deletion(-)

diff --git a/org.simantics.interop/src/org/simantics/interop/test/GraphComparator.java b/org.simantics.interop/src/org/simantics/interop/test/GraphComparator.java
index 82b7bfb..ab9c679 100644
--- a/org.simantics.interop/src/org/simantics/interop/test/GraphComparator.java
+++ b/org.simantics.interop/src/org/simantics/interop/test/GraphComparator.java
@@ -221,6 +221,12 @@ public class GraphComparator {
 			Resource r1 = objectsLeft.pop();
 			Resource r2 = objectsRight.pop();
 			
+//			if (r1.getResourceId() == 42543612 ||
+//				r1.getResourceId() == 42729524 ||
+//				r1.getResourceId() == 42729506) {
+//				System.out.println("test " + r1 + " " + r2);
+//			}
+			
 			if (r1.equals(r2))
 				continue;
 		
@@ -323,7 +329,9 @@ public class GraphComparator {
 		}
 		
 		for (Resource ol : objectLeft.getKeys()) {
-
+//			if (ol.getResourceId() == 42729506) {
+//				System.out.println();
+//			}
 			// all statements to the left side object
 			List<Statement> left = objectLeft.getValues(ol);
 			// all subjects that have statements to the left side object (ol)
@@ -334,6 +342,58 @@ public class GraphComparator {
 				sLeft.add(s.getSubject());
 				sRight.add(comparableResources.getRight(s.getSubject()));
 			}
+			
+			// check if object left can be reliably identified by available statements
+			// if there are any objects on the left side with similar statements, object left cannot be mapped.
+			boolean hasSimilar = false;
+			MapList<Resource, Statement> comparableOLeft = new MapList<Resource, Statement>();
+			for (Resource sl : sLeft) {
+				for (Statement s : subjectLeft.getValues(sl)) {
+					if (!s.getObject().equals(ol)) {
+						comparableOLeft.add(s.getObject(),s);
+					}
+				}
+			}
+			
+			for (Resource similarOl : comparableOLeft.getKeys()) {
+				List<Statement> similarLeft = comparableOLeft.getValues(similarOl);
+				if (similarLeft.size() == left.size()) {
+					boolean useL[] = new boolean[left.size()];
+					boolean useSL[] = new boolean[left.size()];
+					for (int i = 0; i < left.size(); i++) {
+						useL[i] = false;
+						useSL[i] = false;
+					}
+					for (int i = 0; i < left.size(); i++) {
+						for (int j = 0; j < left.size(); j++) {
+							if (useSL[j])
+								continue;
+							Resource pl = left.get(i).getPredicate();
+							Resource psl = similarLeft.get(j).getPredicate();
+							if (pl.equals(psl)) {
+								useL[i] = true;
+								useSL[j] = true;
+								break;
+							}
+						}
+					}
+					boolean diff = false;
+					for (int i = 0; i < left.size(); i++) {
+						if (!useL[i] || !useSL[i]) {
+							diff = true;
+						}
+					}
+					if (!diff) {
+						hasSimilar = true;
+						break;
+					}
+				}
+			}
+			
+			if (hasSimilar)
+				continue;
+				
+			
 			// all objects that subjects on the right side point to. Object left has its matching resource among these, if it has matching resource
 			MapList<Resource,Statement> possibleOR = new MapList<Resource, Statement>();
 			for (Resource sr : sRight) {
@@ -546,6 +606,11 @@ public class GraphComparator {
 	}
 	
 	private void addComparable(Statement left, Statement right, boolean process) {
+//		if (left.getObject().getResourceId() == 42543612 ||
+//			left.getObject().getResourceId() == 42729524 ||
+//			left.getObject().getResourceId() == 42729506) {
+//				System.out.println("test " + r1 + " " + r2);
+//			}
 		comparableStatements.map(left, right);
 		if (!process) {
 			comparableResources.map(left.getObject(), right.getObject());
-- 
2.47.1