From: Tuukka Lehtonen <tuukka.lehtonen@semantum.fi>
Date: Thu, 16 May 2019 12:30:48 +0000 (+0300)
Subject: Allow batch issue validation to remove issues with disconnected context
X-Git-Tag: v1.43.0~136^2~154
X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=commitdiff_plain;h=refs%2Fchanges%2F99%2F2899%2F1;p=simantics%2Fplatform.git

Allow batch issue validation to remove issues with disconnected context

gitlab #295

Change-Id: I0ebfc37013c9c3e9636efab3ddbd68692b2a7056
---

diff --git a/bundles/org.simantics.issues.ui/src/org/simantics/issues/ui/handler/RunActiveValidations.java b/bundles/org.simantics.issues.ui/src/org/simantics/issues/ui/handler/RunActiveValidations.java
index e46be60d4..0ab0ef98c 100644
--- a/bundles/org.simantics.issues.ui/src/org/simantics/issues/ui/handler/RunActiveValidations.java
+++ b/bundles/org.simantics.issues.ui/src/org/simantics/issues/ui/handler/RunActiveValidations.java
@@ -152,7 +152,7 @@ public class RunActiveValidations extends AbstractHandler {
                                             List<Resource> l = ListUtils.toList(graph, list);
                                             if (l.size() > 0) {
                                                 Resource mainContext = l.get(0); 
-                                                if (!graph.hasStatement(mainContext))
+                                                if (!BatchValidations.isLinkedToOtherThan(graph, mainContext, issue))
                                                     result.add(mainContext);
                                             }
                                         }
diff --git a/bundles/org.simantics.modeling/src/org/simantics/modeling/utils/BatchValidations.java b/bundles/org.simantics.modeling/src/org/simantics/modeling/utils/BatchValidations.java
index 91d85aed2..0ce852403 100644
--- a/bundles/org.simantics.modeling/src/org/simantics/modeling/utils/BatchValidations.java
+++ b/bundles/org.simantics.modeling/src/org/simantics/modeling/utils/BatchValidations.java
@@ -14,8 +14,10 @@ import org.eclipse.core.runtime.Status;
 import org.eclipse.core.runtime.SubMonitor;
 import org.simantics.Simantics;
 import org.simantics.db.Issue;
+import org.simantics.db.ReadGraph;
 import org.simantics.db.Resource;
 import org.simantics.db.Session;
+import org.simantics.db.Statement;
 import org.simantics.db.VirtualGraph;
 import org.simantics.db.WriteGraph;
 import org.simantics.db.common.request.WriteRequest;
@@ -213,4 +215,39 @@ public class BatchValidations {
 		return result;
 	}
 
+	/**
+	 * Checks if the specified <code>resourceToCheckForLinks</code> is linked to
+	 * anything else besides itself and <code>excludeLinksTo</code>.
+	 * 
+	 * <p>
+	 * This is used to if an issue context is still valid. We consider any issue
+	 * context that is not attached to something else besides its issue context to
+	 * be an invalid issue. Assertions and L0.InstanceOf do not count as external
+	 * links.
+	 * 
+	 * @param graph database access handle
+	 * @param resourceToCheckForLinks the resource to check for "external" links
+	 * @param excludeLinksTo exclude links to this resource from evaluation
+	 * @return <code>true</code> if there are links, <code>false</code> otherwise
+	 * @throws DatabaseException 
+	 */
+	public static boolean isLinkedToOtherThan(ReadGraph graph, Resource resourceToCheckForLinks,
+			Resource excludeLinksTo)
+					throws DatabaseException
+	{
+		Layer0 L0 = Layer0.getInstance(graph);
+		for (Statement stm : graph.getStatements(resourceToCheckForLinks, L0.IsWeaklyRelatedTo)) {
+			if (stm.isAsserted(resourceToCheckForLinks))
+				continue;
+			if (stm.getPredicate().equals(L0.InstanceOf))
+				continue;
+			Resource o = stm.getObject();
+			if (o.equals(excludeLinksTo) || o.equals(resourceToCheckForLinks))
+				continue;
+
+			return true;
+		}
+		return false;
+	}
+
 }