/*****************************************************************
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
****************************************************************/
package org.apache.cayenne.access;
import org.apache.cayenne.DataChannel;
import org.apache.cayenne.DataChannelListener;
import org.apache.cayenne.ObjectContext;
import org.apache.cayenne.configuration.server.ServerRuntime;
import org.apache.cayenne.di.Inject;
import org.apache.cayenne.graph.GraphEvent;
import org.apache.cayenne.test.parallel.ParallelTestContainer;
import org.apache.cayenne.testdo.testmap.Artist;
import org.apache.cayenne.unit.di.server.CayenneProjects;
import org.apache.cayenne.unit.di.server.ServerCase;
import org.apache.cayenne.unit.di.server.UseServerRuntime;
import org.apache.cayenne.util.EventUtil;
import org.junit.Test;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* Tests that DataContext sends DataChannel events.
*/
@UseServerRuntime(CayenneProjects.TESTMAP_PROJECT)
public class DataContextDataChannelEventsIT extends ServerCase {
@Inject
private DataContext context;
@Inject
private DataContext peer;
@Inject
private ServerRuntime runtime;
@Test
public void testCommitEvent() throws Exception {
Artist a = context.newObject(Artist.class);
a.setArtistName("X");
context.commitChanges();
final MockChannelListener listener = new MockChannelListener();
EventUtil.listenForChannelEvents(context, listener);
a.setArtistName("Y");
context.commitChanges();
new ParallelTestContainer() {
@Override
protected void assertResult() throws Exception {
assertTrue(listener.graphCommitted);
assertFalse(listener.graphChanged);
assertFalse(listener.graphRolledBack);
}
}.runTest(10000);
}
@Test
public void testRollbackEvent() throws Exception {
Artist a = context.newObject(Artist.class);
a.setArtistName("X");
context.commitChanges();
final MockChannelListener listener = new MockChannelListener();
EventUtil.listenForChannelEvents(context, listener);
a.setArtistName("Y");
context.rollbackChanges();
new ParallelTestContainer() {
@Override
protected void assertResult() throws Exception {
assertFalse(listener.graphCommitted);
assertFalse(listener.graphChanged);
assertTrue(listener.graphRolledBack);
}
}.runTest(10000);
}
@Test
public void testChangeEventOnChildChange() throws Exception {
Artist a = context.newObject(Artist.class);
a.setArtistName("X");
context.commitChanges();
final MockChannelListener listener = new MockChannelListener();
EventUtil.listenForChannelEvents(context, listener);
ObjectContext childContext = runtime.newContext(context);
Artist a1 = childContext.localObject(a);
a1.setArtistName("Y");
childContext.commitChangesToParent();
new ParallelTestContainer() {
@Override
protected void assertResult() throws Exception {
assertFalse(listener.graphCommitted);
assertTrue(listener.graphChanged);
assertFalse(listener.graphRolledBack);
}
}.runTest(10000);
}
@Test
public void testChangeEventOnPeerChange() throws Exception {
Artist a = context.newObject(Artist.class);
a.setArtistName("X");
context.commitChanges();
final MockChannelListener listener = new MockChannelListener();
EventUtil.listenForChannelEvents(context, listener);
Artist a1 = peer.localObject(a);
a1.setArtistName("Y");
peer.commitChangesToParent();
new ParallelTestContainer() {
@Override
protected void assertResult() throws Exception {
assertFalse(listener.graphCommitted);
assertTrue(listener.graphChanged);
assertFalse(listener.graphRolledBack);
}
}.runTest(10000);
}
@Test
public void testChangeEventOnPeerChangeSecondNestingLevel() throws Exception {
ObjectContext childPeer1 = runtime.newContext(context);
Artist a = childPeer1.newObject(Artist.class);
a.setArtistName("X");
childPeer1.commitChanges();
final MockChannelListener listener = new MockChannelListener();
EventUtil.listenForChannelEvents((DataChannel) childPeer1, listener);
ObjectContext childPeer2 = runtime.newContext(context);
Artist a1 = childPeer2.localObject(a);
a1.setArtistName("Y");
childPeer2.commitChangesToParent();
new ParallelTestContainer() {
@Override
protected void assertResult() throws Exception {
assertFalse(listener.graphCommitted);
assertTrue(listener.graphChanged);
assertFalse(listener.graphRolledBack);
}
}.runTest(10000);
}
class MockChannelListener implements DataChannelListener {
boolean graphChanged;
boolean graphCommitted;
boolean graphRolledBack;
public void graphChanged(GraphEvent event) {
graphChanged = true;
}
public void graphFlushed(GraphEvent event) {
graphCommitted = true;
}
public void graphRolledback(GraphEvent event) {
graphRolledBack = true;
}
}
}