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* to you under the Apache License, Version 2.0 (the
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*
* http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.brooklyn.policy.autoscaling;
import static org.testng.Assert.assertEquals;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import org.apache.brooklyn.api.entity.EntitySpec;
import org.apache.brooklyn.api.location.LocationSpec;
import org.apache.brooklyn.api.sensor.AttributeSensor;
import org.apache.brooklyn.core.entity.EntityInternal;
import org.apache.brooklyn.core.location.SimulatedLocation;
import org.apache.brooklyn.core.mgmt.rebind.RebindTestFixtureWithApp;
import org.apache.brooklyn.core.sensor.BasicNotificationSensor;
import org.apache.brooklyn.core.sensor.Sensors;
import org.apache.brooklyn.core.test.entity.TestApplication;
import org.apache.brooklyn.core.test.entity.TestEntity;
import org.apache.brooklyn.entity.group.DynamicCluster;
import org.apache.brooklyn.test.EntityTestUtils;
import org.apache.brooklyn.util.time.Duration;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
public class AutoScalerPolicyRebindTest extends RebindTestFixtureWithApp {
public static BasicNotificationSensor<Map> POOL_HOT_SENSOR = new BasicNotificationSensor<Map>(
Map.class, "AutoScalerPolicyRebindTest.resizablepool.hot", "Pool is over-utilized; it has insufficient resource for current workload");
public static BasicNotificationSensor<Map> POOL_COLD_SENSOR = new BasicNotificationSensor<Map>(
Map.class, "AutoScalerPolicyRebindTest.resizablepool.cold", "Pool is under-utilized; it has too much resource for current workload");
public static BasicNotificationSensor<Map> POOL_OK_SENSOR = new BasicNotificationSensor<Map>(
Map.class, "AutoScalerPolicyRebindTest.resizablepool.cold", "Pool utilization is ok; the available resources are fine for the current workload");
public static BasicNotificationSensor<MaxPoolSizeReachedEvent> MAX_SIZE_REACHED_SENSOR = new BasicNotificationSensor<MaxPoolSizeReachedEvent>(
MaxPoolSizeReachedEvent.class, "AutoScalerPolicyRebindTest.maxSizeReached");
public static AttributeSensor<Integer> METRIC_SENSOR = Sensors.newIntegerSensor("AutoScalerPolicyRebindTest.metric");
private DynamicCluster origCluster;
private SimulatedLocation origLoc;
@BeforeMethod(alwaysRun=true)
@Override
public void setUp() throws Exception {
super.setUp();
origLoc = origManagementContext.getLocationManager().createLocation(LocationSpec.create(SimulatedLocation.class));
origCluster = origApp.createAndManageChild(EntitySpec.create(DynamicCluster.class)
.configure("memberSpec", EntitySpec.create(TestEntity.class)));
}
@Test
public void testRestoresAutoScalerConfig() throws Exception {
origCluster.policies().add(AutoScalerPolicy.builder()
.name("myname")
.metric(METRIC_SENSOR)
.entityWithMetric(origCluster)
.metricUpperBound(1)
.metricLowerBound(2)
.minPoolSize(0)
.maxPoolSize(3)
.minPeriodBetweenExecs(Duration.of(4, TimeUnit.MILLISECONDS))
.resizeUpStabilizationDelay(Duration.of(5, TimeUnit.MILLISECONDS))
.resizeDownStabilizationDelay(Duration.of(6, TimeUnit.MILLISECONDS))
.poolHotSensor(POOL_HOT_SENSOR)
.poolColdSensor(POOL_COLD_SENSOR)
.poolOkSensor(POOL_OK_SENSOR)
.maxSizeReachedSensor(MAX_SIZE_REACHED_SENSOR)
.maxReachedNotificationDelay(Duration.of(7, TimeUnit.MILLISECONDS))
.buildSpec());
TestApplication newApp = rebind();
DynamicCluster newCluster = (DynamicCluster) Iterables.getOnlyElement(newApp.getChildren());
AutoScalerPolicy newPolicy = (AutoScalerPolicy) Iterables.getOnlyElement(newCluster.policies());
assertEquals(newPolicy.getDisplayName(), "myname");
assertEquals(newPolicy.getConfig(AutoScalerPolicy.METRIC), METRIC_SENSOR);
assertEquals(newPolicy.getConfig(AutoScalerPolicy.ENTITY_WITH_METRIC), newCluster);
assertEquals(newPolicy.getConfig(AutoScalerPolicy.METRIC_UPPER_BOUND), 1);
assertEquals(newPolicy.getConfig(AutoScalerPolicy.METRIC_LOWER_BOUND), 2);
assertEquals(newPolicy.getConfig(AutoScalerPolicy.MIN_POOL_SIZE), (Integer)0);
assertEquals(newPolicy.getConfig(AutoScalerPolicy.MAX_POOL_SIZE), (Integer)3);
assertEquals(newPolicy.getConfig(AutoScalerPolicy.MIN_PERIOD_BETWEEN_EXECS), Duration.of(4, TimeUnit.MILLISECONDS));
assertEquals(newPolicy.getConfig(AutoScalerPolicy.RESIZE_UP_STABILIZATION_DELAY), Duration.of(5, TimeUnit.MILLISECONDS));
assertEquals(newPolicy.getConfig(AutoScalerPolicy.RESIZE_DOWN_STABILIZATION_DELAY), Duration.of(6, TimeUnit.MILLISECONDS));
assertEquals(newPolicy.getConfig(AutoScalerPolicy.POOL_HOT_SENSOR), POOL_HOT_SENSOR);
assertEquals(newPolicy.getConfig(AutoScalerPolicy.POOL_COLD_SENSOR), POOL_COLD_SENSOR);
assertEquals(newPolicy.getConfig(AutoScalerPolicy.POOL_OK_SENSOR), POOL_OK_SENSOR);
assertEquals(newPolicy.getConfig(AutoScalerPolicy.MAX_SIZE_REACHED_SENSOR), MAX_SIZE_REACHED_SENSOR);
assertEquals(newPolicy.getConfig(AutoScalerPolicy.MAX_REACHED_NOTIFICATION_DELAY), Duration.of(7, TimeUnit.MILLISECONDS));
}
@Test
public void testAutoScalerResizesAfterRebind() throws Exception {
origCluster.start(ImmutableList.of(origLoc));
origCluster.policies().add(AutoScalerPolicy.builder()
.name("myname")
.metric(METRIC_SENSOR)
.entityWithMetric(origCluster)
.metricUpperBound(10)
.metricLowerBound(100)
.minPoolSize(1)
.maxPoolSize(3)
.buildSpec());
TestApplication newApp = rebind();
DynamicCluster newCluster = (DynamicCluster) Iterables.getOnlyElement(newApp.getChildren());
assertEquals(newCluster.getCurrentSize(), (Integer)1);
((EntityInternal)newCluster).sensors().set(METRIC_SENSOR, 1000);
EntityTestUtils.assertGroupSizeEqualsEventually(newCluster, 3);
((EntityInternal)newCluster).sensors().set(METRIC_SENSOR, 1);
EntityTestUtils.assertGroupSizeEqualsEventually(newCluster, 1);
}
}