+package org.simantics.issues.ui;\r
+\r
+import java.util.Collection;\r
+import java.util.Collections;\r
+import java.util.Set;\r
+\r
+import org.simantics.browsing.ui.model.children.ChildRule;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.layer0.variable.Variable;\r
+import org.simantics.issues.common.IssuesOfSeverity;\r
+import org.simantics.issues.ui.ontology.IssueUIResource;\r
+\r
+public class SeverityFolderRule implements ChildRule {\r
+\r
+ final Resource rule;\r
+ \r
+ public SeverityFolderRule(Resource rule) {\r
+ this.rule = rule;\r
+ }\r
+ \r
+ @Override\r
+ public boolean isCompatible(Class<?> contentType) {\r
+ return contentType.equals(Resource.class);\r
+ }\r
+\r
+ @Override\r
+ public Collection<?> getChildren(ReadGraph graph, Object parent) throws DatabaseException {\r
+\r
+ IssueUIResource UI = IssueUIResource.getInstance(graph);\r
+ Resource project = (Resource)parent;\r
+ Resource severity = graph.getSingleObject(rule, UI.IssueBrowseContext_SeverityFolderRule_HasSeverity);\r
+ Set<Variable> issues = graph.syncRequest(new IssuesOfSeverity(project, severity));\r
+ if(!issues.isEmpty()) return Collections.singleton(project);\r
+ else return Collections.emptyList();\r
+ \r
+ }\r
+\r
+ @Override\r
+ public Collection<?> getParents(ReadGraph graph, Object child)\r
+ throws DatabaseException {\r
+ return Collections.singleton(child);\r
+ }\r
+\r
+\r
+}\r