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* Licensed to the Apache Software Foundation (ASF) under one
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* 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
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*/
package org.apache.brooklyn.policy.loadbalancing;
import static org.testng.Assert.assertEquals;
import org.apache.brooklyn.api.entity.Entity;
import org.apache.brooklyn.api.entity.EntitySpec;
import org.apache.brooklyn.api.entity.Group;
import org.apache.brooklyn.core.entity.Entities;
import org.apache.brooklyn.core.entity.factory.ApplicationBuilder;
import org.apache.brooklyn.core.location.SimulatedLocation;
import org.apache.brooklyn.core.test.entity.TestApplication;
import org.apache.brooklyn.entity.group.DynamicGroup;
import org.apache.brooklyn.test.Asserts;
import org.apache.brooklyn.util.collections.MutableMap;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import com.google.common.base.Predicate;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
public class ItemsInContainersGroupTest {
// all tests are 20ms or less, but use a big timeout just in case very slow machine!
private static final long TIMEOUT_MS = 15000;
private TestApplication app;
private SimulatedLocation loc;
private Group containerGroup;
private ItemsInContainersGroup itemGroup;
@BeforeMethod(alwaysRun=true)
public void setUp() throws Exception {
loc = new SimulatedLocation(MutableMap.of("name", "loc"));
app = ApplicationBuilder.newManagedApp(TestApplication.class);
containerGroup = app.createAndManageChild(EntitySpec.create(DynamicGroup.class)
.displayName("containerGroup")
.configure(DynamicGroup.ENTITY_FILTER, new Predicate<Entity>() {
public boolean apply(Entity input) {
return input instanceof MockContainerEntity &&
input.getConfig(MockContainerEntity.MOCK_MEMBERSHIP) == "ingroup";
}}));
itemGroup = app.createAndManageChild(EntitySpec.create(ItemsInContainersGroup.class)
.displayName("itemGroup"));
itemGroup.setContainers(containerGroup);
app.start(ImmutableList.of(loc));
}
@AfterMethod(alwaysRun=true)
public void tearDown() throws Exception {
if (app != null) Entities.destroyAll(app.getManagementContext());
}
@Test
public void testSimpleMembership() throws Exception {
MockContainerEntity containerIn = newContainer(app, "A", "ingroup");
MockItemEntity item1 = newItem(app, containerIn, "1");
MockItemEntity item2 = newItem(app, containerIn, "2");
assertItemsEventually(item1, item2);
}
@Test
public void testFilterIsAppliedToItems() throws Exception {
itemGroup.stop();
Entities.unmanage(itemGroup);
itemGroup = app.createAndManageChild(EntitySpec.create(ItemsInContainersGroup.class)
.displayName("itemGroupWithDispName2")
.configure(ItemsInContainersGroup.ITEM_FILTER, new Predicate<Entity>() {
public boolean apply(Entity input) {
return "2".equals(input.getDisplayName());
}}));
itemGroup.setContainers(containerGroup);
MockContainerEntity containerIn = newContainer(app, "A", "ingroup");
MockItemEntity item1 = newItem(app, containerIn, "1");
MockItemEntity item2 = newItem(app, containerIn, "2");
assertItemsEventually(item2); // does not include item1
}
@Test
public void testItemsInOtherContainersIgnored() throws Exception {
MockContainerEntity containerOut = newContainer(app, "A", "outgroup");
MockItemEntity item1 = newItem(app, containerOut, "1");
assertItemsEventually();
}
@Test
public void testItemMovedInIsAdded() throws Exception {
MockContainerEntity containerIn = newContainer(app, "A", "ingroup");
MockContainerEntity containerOut = newContainer(app, "A", "outgroup");
MockItemEntity item1 = newItem(app, containerOut, "1");
item1.move(containerIn);
assertItemsEventually(item1);
}
@Test
public void testItemMovedOutIsRemoved() throws Exception {
MockContainerEntity containerIn = newContainer(app, "A", "ingroup");
MockContainerEntity containerOut = newContainer(app, "A", "outgroup");
MockItemEntity item1 = newItem(app, containerIn, "1");
assertItemsEventually(item1);
item1.move(containerOut);
assertItemsEventually();
}
/*
* Previously could fail if...
* ItemsInContainersGroupImpl listener got notified of Movable.CONTAINER after entity was unmanaged
* (because being done in concurrent threads).
* This called ItemsInContainersGroupImpl.onItemMoved, which called addMember to add it back in again.
* In AbstractGroup.addMember, we now check if the entity is still managed, to
* ensure there is synchronization for concurrent calls to add/remove member.
*/
@Test
public void testItemUnmanagedIsRemoved() throws Exception {
MockContainerEntity containerIn = newContainer(app, "A", "ingroup");
MockItemEntity item1 = newItem(app, containerIn, "1");
assertItemsEventually(item1);
Entities.unmanage(item1);
assertItemsEventually();
}
// TODO How to test this? Will it be used?
// Adding a new container then adding items to it is tested in many other methods.
@Test(enabled=false)
public void testContainerAddedWillAddItsItems() throws Exception {
}
@Test
public void testContainerRemovedWillRemoveItsItems() throws Exception {
MockContainerEntity containerA = newContainer(app, "A", "ingroup");
MockItemEntity item1 = newItem(app, containerA, "1");
assertItemsEventually(item1);
Entities.unmanage(containerA);
assertItemsEventually();
}
private void assertItemsEventually(final MockItemEntity... expected) {
Asserts.succeedsEventually(MutableMap.of("timeout", TIMEOUT_MS), new Runnable() {
public void run() {
assertEquals(ImmutableSet.copyOf(itemGroup.getMembers()), ImmutableSet.copyOf(expected));
}});
}
private MockContainerEntity newContainer(TestApplication app, String name, String membership) {
MockContainerEntity container = app.createAndManageChild(EntitySpec.create(MockContainerEntity.class)
.displayName(name)
.configure(MockContainerEntity.MOCK_MEMBERSHIP, membership));
container.start(ImmutableList.of(loc));
return container;
}
private static MockItemEntity newItem(TestApplication app, MockContainerEntity container, String name) {
MockItemEntity item = app.createAndManageChild(EntitySpec.create(MockItemEntity.class)
.displayName(name));
item.move(container);
return item;
}
}