--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 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:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.tests.api.readGraph.adapt;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.simantics.db.AsyncReadGraph;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.Session;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.common.request.ResourceAsyncRead;
+import org.simantics.db.common.request.WriteRequest;
+import org.simantics.db.exception.AdaptionException;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.procedure.AsyncProcedure;
+import org.simantics.db.request.Read;
+import org.simantics.db.services.GlobalServiceInitializer;
+import org.simantics.db.testing.base.ExistingDatabaseTest;
+import org.simantics.layer0.Layer0;
+
+/**
+ * Checks that {@link ReadGraph#adapt(org.simantics.db.Resource, Class)},
+ * {@link ReadGraph#adaptUnique(org.simantics.db.Resource, Class)},
+ * <code>AsyncReadGraph.forAdapted</code> fail as expected.
+ *
+ * <p>
+ * Regression test for https://www.simulationsite.net/trac/simantics/ticket/617
+ *
+ * @author Tuukka Lehtonen
+ */
+public class AdaptionFailureTest extends ExistingDatabaseTest {
+
+ @Override
+ @Before
+ public void setUp() throws Exception {
+ super.setUp();
+ new GlobalServiceInitializer().initialize(getSession());
+ }
+
+ private Resource writeTypeless(Session session) throws DatabaseException {
+ final Resource[] typeless = { null };
+ session.syncRequest(new WriteRequest() {
+ @Override
+ public void perform(WriteGraph graph) throws DatabaseException {
+ Layer0 l0 = Layer0.getInstance(graph);
+ Resource tless = graph.newResource();
+ Resource name = graph.newResource();
+ graph.claim(name, l0.InstanceOf, null, l0.String);
+ graph.claimValue(name, "A Typeless Resource");
+ graph.claim(tless, l0.HasName, name);
+ typeless[0] = tless;
+ }
+ });
+ return typeless[0];
+ }
+
+ static abstract class Adapter {
+ String name;
+
+ public Adapter(String name) {
+ this.name = name;
+ }
+
+ public abstract <T> T adapt(ReadGraph graph, Resource r, Class<T> clazz) throws DatabaseException;
+
+ @Override
+ public String toString() {
+ return name;
+ }
+ }
+
+ private void adaptTester(final Adapter adapter) throws DatabaseException {
+ final Session session = getSession();
+ final Resource typeless = writeTypeless(session);
+ try {
+ String s = session.syncRequest(new Read<String>() {
+ @Override
+ public String perform(ReadGraph graph) throws DatabaseException {
+ try {
+ return adapter.adapt(graph, typeless, String.class);
+ } catch (AdaptionException e) {
+ throw e;
+ } catch (DatabaseException e) {
+ throw new DatabaseException("AdaptionException expected, got " + e, e);
+ }
+ }
+ });
+
+ if (s == null)
+ fail(adapter + " must never return null");
+ } catch (AdaptionException e) {
+ // Failure with AdaptionException is expected
+ if (DEBUG)
+ System.out.println("Expected failure message: " + e.getMessage());
+ }
+ }
+
+ @Test
+ public void testAdapt() throws DatabaseException{
+ adaptTester(new Adapter("ReadGraph.adapt") {
+ @Override
+ public <T> T adapt(ReadGraph graph, Resource resource, Class<T> clazz) throws DatabaseException {
+ return graph.adapt(resource, clazz);
+ }
+ });
+ }
+
+ @Test
+ public void testAdaptUnique() throws DatabaseException{
+ adaptTester(new Adapter("ReadGraph.adaptUnique") {
+ @Override
+ public <T> T adapt(ReadGraph graph, Resource resource, Class<T> clazz) throws DatabaseException {
+ return graph.adaptUnique(resource, clazz);
+ }
+ });
+ }
+
+ @Test
+ public void testforAdapted() throws DatabaseException{
+ adaptTester(new Adapter("AsyncReadGraph.forAdapted") {
+ @Override
+ public <T> T adapt(ReadGraph graph, Resource resource, final Class<T> clazz) throws DatabaseException {
+ return graph.syncRequest(new ResourceAsyncRead<T>(resource) {
+ @Override
+ public void perform(AsyncReadGraph graph, AsyncProcedure<T> procedure) {
+ graph.forAdapted(resource, clazz, procedure);
+ }
+ });
+ }
+ });
+ }
+
+ @Test
+ public void testforUniqueAdapted() throws DatabaseException{
+ adaptTester(new Adapter("AsyncReadGraph.forUniqueAdapted") {
+ @Override
+ public <T> T adapt(ReadGraph graph, Resource resource, final Class<T> clazz) throws DatabaseException {
+ return graph.syncRequest(new ResourceAsyncRead<T>(resource) {
+ @Override
+ public void perform(AsyncReadGraph graph, AsyncProcedure<T> procedure) {
+ graph.forUniqueAdapted(resource, clazz, procedure);
+ }
+ });
+ }
+ });
+ }
+
+}