--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2017 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * Semantum Oy - initial API and implementation
+ *******************************************************************************/
+package org.simantics.issues.common;
+
+import java.util.Set;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.common.request.ResourceRead;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.request.PossibleVariable;
+import org.simantics.db.layer0.variable.Variable;
+import org.simantics.issues.ontology.IssueResource;
+
+import gnu.trove.set.hash.THashSet;
+
+/**
+ * @author Tuukka Lehtonen
+ * @since 1.27
+ */
+public class DynamicIssueSources extends ResourceRead<Set<Variable>> {
+
+ public DynamicIssueSources(Resource project) {
+ super(project);
+ }
+
+ @Override
+ public Set<Variable> perform(ReadGraph graph) throws DatabaseException {
+ IssueResource ISSUE = IssueResource.getInstance(graph);
+ Set<Variable> result = new THashSet<>();
+ for (Resource source : graph.syncRequest(new ActiveProjectIssueSources(resource, ISSUE.DynamicIssueSource))) {
+ boolean selected = graph.hasStatement(source, ISSUE.IssueSource_Selected);
+ if (!selected)
+ continue;
+ Variable v = graph.syncRequest(new PossibleVariable(source));
+ if (v != null)
+ result.add(v);
+ }
+ return result;
+ }
+
+}