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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.entity.group;
import static org.testng.Assert.assertEquals;
import java.util.Collection;
import java.util.List;
import java.util.Set;
import org.apache.brooklyn.api.entity.Entity;
import org.apache.brooklyn.api.entity.EntitySpec;
import org.apache.brooklyn.api.location.Location;
import org.apache.brooklyn.core.location.SimulatedLocation;
import org.apache.brooklyn.core.test.BrooklynAppUnitTestSupport;
import org.apache.brooklyn.core.test.entity.TestEntity;
import org.apache.brooklyn.entity.group.DynamicRegionsFabric;
import org.apache.brooklyn.util.collections.MutableSet;
import org.apache.brooklyn.util.exceptions.Exceptions;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
public class DynamicRegionsFabricTest extends BrooklynAppUnitTestSupport {
DynamicRegionsFabric fabric;
private Location loc1;
private Location loc2;
@BeforeMethod(alwaysRun=true)
@Override
public void setUp() throws Exception {
super.setUp();
loc1 = new SimulatedLocation();
loc2 = new SimulatedLocation();
fabric = app.createAndManageChild(EntitySpec.create(DynamicRegionsFabric.class)
.configure("memberSpec", EntitySpec.create(TestEntity.class)));
}
@Test
public void testUsesInitialLocations() throws Exception {
app.start(ImmutableList.of(loc1, loc2));
assertEquals(fabric.getChildren().size(), 2, "children="+fabric.getChildren());
assertEquals(fabric.getMembers().size(), 2, "members="+fabric.getMembers());
assertEqualsIgnoringOrder(fabric.getChildren(), fabric.getMembers());
assertEqualsIgnoringOrder(getLocationsOfChildren(fabric), ImmutableList.of(loc1, loc2));
}
@Test
public void testDynamicallyAddLocations() throws Exception {
app.start(ImmutableList.of(loc1));
Set<Entity> initialChildren = ImmutableSet.copyOf(fabric.getChildren());
Collection<Location> initialLocations = fabric.getLocations();
assertEquals(initialChildren.size(), 1, "children="+initialChildren);
assertEqualsIgnoringOrder(initialLocations, ImmutableSet.of(loc1));
fabric.addRegion("localhost:(name=newloc1)");
Set<Entity> newChildren = Sets.difference(ImmutableSet.copyOf(fabric.getChildren()), initialChildren);
Collection<Location> newLocations = Iterables.getOnlyElement(newChildren).getLocations();
assertEquals(Iterables.getOnlyElement(newLocations).getDisplayName(), "newloc1");
Set<Location> newLocations2 = Sets.difference(ImmutableSet.copyOf(fabric.getLocations()), ImmutableSet.copyOf(initialLocations));
assertEquals(newLocations2, ImmutableSet.copyOf(newLocations));
}
@Test
public void testDynamicallyRemoveInitialLocations() throws Exception {
app.start(ImmutableList.of(loc1, loc2));
Set<Entity> initialChildren = ImmutableSet.copyOf(fabric.getChildren());
Entity childToRemove1 = Iterables.get(initialChildren, 0);
Entity childToRemove2 = Iterables.get(initialChildren, 1);
// remove first child (leaving one)
fabric.removeRegion(childToRemove1.getId());
Set<Entity> removedChildren = Sets.difference(initialChildren, ImmutableSet.copyOf(fabric.getChildren()));
Set<Entity> removedMembers = Sets.difference(initialChildren, ImmutableSet.copyOf(fabric.getMembers()));
assertEqualsIgnoringOrder(removedChildren, ImmutableSet.of(childToRemove1));
assertEqualsIgnoringOrder(removedMembers, ImmutableSet.of(childToRemove1));
assertEqualsIgnoringOrder(fabric.getLocations(), childToRemove2.getLocations());
// remove second child (leaving none)
fabric.removeRegion(childToRemove2.getId());
assertEqualsIgnoringOrder(fabric.getChildren(), ImmutableSet.of());
assertEqualsIgnoringOrder(fabric.getMembers(), ImmutableSet.of());
assertEqualsIgnoringOrder(fabric.getLocations(), ImmutableSet.of());
}
@Test
public void testDynamicallyRemoveDynamicallyAddedLocation() throws Exception {
app.start(ImmutableList.of(loc1));
Set<Entity> initialChildren = ImmutableSet.copyOf(fabric.getChildren());
Collection<Location> initialLocations = fabric.getLocations();
assertEquals(initialChildren.size(), 1, "children="+initialChildren);
assertEqualsIgnoringOrder(initialLocations, ImmutableSet.of(loc1));
fabric.addRegion("localhost:(name=newloc1)");
Entity childToRemove = Iterables.getOnlyElement(Sets.difference(ImmutableSet.copyOf(fabric.getChildren()), initialChildren));
// remove dynamically added child
fabric.removeRegion(childToRemove.getId());
assertEqualsIgnoringOrder(fabric.getChildren(), initialChildren);
assertEqualsIgnoringOrder(fabric.getLocations(), initialLocations);
}
@Test
public void testRemoveRegionWithNonChild() throws Exception {
app.start(ImmutableList.of(loc1));
try {
fabric.removeRegion(app.getId());
} catch (Exception e) {
IllegalArgumentException cause = Exceptions.getFirstThrowableOfType(e, IllegalArgumentException.class);
if (cause == null && !e.toString().contains("Wrong parent")) throw e;
}
}
@Test
public void testRemoveRegionWithNonEntityId() throws Exception {
app.start(ImmutableList.of(loc1));
try {
fabric.removeRegion("thisIsNotAnEntityId");
} catch (Exception e) {
IllegalArgumentException cause = Exceptions.getFirstThrowableOfType(e, IllegalArgumentException.class);
if (cause == null && !e.toString().contains("No entity found")) throw e;
}
}
private List<Location> getLocationsOfChildren(DynamicRegionsFabric fabric) {
List<Location> result = Lists.newArrayList();
for (Entity child : fabric.getChildren()) {
result.addAll(child.getLocations());
}
return result;
}
private void assertEqualsIgnoringOrder(Iterable<? extends Object> col1, Iterable<? extends Object> col2) {
assertEquals(Iterables.size(col1), Iterables.size(col2), "col2="+col1+"; col2="+col2);
assertEquals(MutableSet.copyOf(col1), MutableSet.copyOf(col2), "col1="+col1+"; col2="+col2);
}
}