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* 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
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package org.apache.brooklyn.policy.loadbalancing;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.fail;
import org.apache.brooklyn.api.entity.EntitySpec;
import org.apache.brooklyn.api.entity.Group;
import org.apache.brooklyn.api.entity.ImplementedBy;
import org.apache.brooklyn.core.entity.Entities;
import org.apache.brooklyn.core.entity.factory.ApplicationBuilder;
import org.apache.brooklyn.core.entity.trait.Resizable;
import org.apache.brooklyn.core.location.SimulatedLocation;
import org.apache.brooklyn.core.test.entity.TestApplication;
import org.apache.brooklyn.entity.group.AbstractGroup;
import org.apache.brooklyn.entity.group.AbstractGroupImpl;
import org.apache.brooklyn.entity.group.DynamicGroup;
import org.apache.brooklyn.util.collections.MutableMap;
import org.apache.brooklyn.util.exceptions.Exceptions;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import com.google.common.base.Predicates;
import com.google.common.collect.ImmutableList;
public class BalanceableWorkerPoolTest {
private static final Logger LOG = LoggerFactory.getLogger(BalanceableWorkerPoolTest.class);
protected static final long TIMEOUT_MS = 10*1000;
protected static final long SHORT_WAIT_MS = 250;
protected static final long CONTAINER_STARTUP_DELAY_MS = 100;
protected TestApplication app;
protected SimulatedLocation loc;
protected BalanceableWorkerPool pool;
protected Group containerGroup;
protected Group itemGroup;
@BeforeMethod(alwaysRun=true)
public void before() {
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, Predicates.instanceOf(MockContainerEntity.class)));
itemGroup = app.createAndManageChild(EntitySpec.create(DynamicGroup.class)
.displayName("itemGroup")
.configure(DynamicGroup.ENTITY_FILTER, Predicates.instanceOf(MockItemEntity.class)));
pool = app.createAndManageChild(EntitySpec.create(BalanceableWorkerPool.class));
pool.setContents(containerGroup, itemGroup);
app.start(ImmutableList.of(loc));
}
@AfterMethod(alwaysRun=true)
public void after() {
if (app != null) Entities.destroyAll(app.getManagementContext());
}
@Test
public void testDefaultResizeFailsIfContainerGroupNotResizable() throws Exception {
try {
pool.resize(1);
fail();
} catch (Exception e) {
if (Exceptions.getFirstThrowableOfType(e, UnsupportedOperationException.class) == null) throw e;
}
}
@Test
public void testDefaultResizeCallsResizeOnContainerGroup() {
LocallyResizableGroup resizable = app.createAndManageChild(EntitySpec.create(LocallyResizableGroup.class));
BalanceableWorkerPool pool2 = app.createAndManageChild(EntitySpec.create(BalanceableWorkerPool.class));
pool2.setContents(resizable, itemGroup);
pool2.resize(123);
assertEquals(resizable.getCurrentSize(), (Integer) 123);
}
@Test
public void testCustomResizableCalledWhenResizing() {
LocallyResizableGroup resizable = app.createAndManageChild(EntitySpec.create(LocallyResizableGroup.class));
pool.setResizable(resizable);
pool.resize(123);
assertEquals(resizable.getCurrentSize(), (Integer)123);
}
@ImplementedBy(LocallyResizableGroupImpl.class)
public static interface LocallyResizableGroup extends AbstractGroup, Resizable {
}
public static class LocallyResizableGroupImpl extends AbstractGroupImpl implements LocallyResizableGroup {
private int size = 0;
@Override
public Integer resize(Integer newSize) {
size = newSize;
return size;
}
@Override
public Integer getCurrentSize() {
return size;
}
}
}