/**
* 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.ambari.server.alerts;
import static junit.framework.Assert.assertEquals;
import static org.easymock.EasyMock.expect;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.persistence.EntityManager;
import org.apache.ambari.server.api.services.AmbariMetaInfo;
import org.apache.ambari.server.events.AlertEvent;
import org.apache.ambari.server.events.AlertReceivedEvent;
import org.apache.ambari.server.events.MockEventListener;
import org.apache.ambari.server.events.publishers.AlertEventPublisher;
import org.apache.ambari.server.orm.DBAccessor;
import org.apache.ambari.server.orm.dao.AlertDefinitionDAO;
import org.apache.ambari.server.orm.entities.AlertDefinitionEntity;
import org.apache.ambari.server.orm.entities.ClusterVersionEntity;
import org.apache.ambari.server.orm.entities.RepositoryVersionEntity;
import org.apache.ambari.server.orm.entities.UpgradeEntity;
import org.apache.ambari.server.stack.StackManagerFactory;
import org.apache.ambari.server.state.Alert;
import org.apache.ambari.server.state.AlertState;
import org.apache.ambari.server.state.Cluster;
import org.apache.ambari.server.state.Clusters;
import org.apache.ambari.server.state.ComponentInfo;
import org.apache.ambari.server.state.Host;
import org.apache.ambari.server.state.ServiceComponentHost;
import org.apache.ambari.server.state.StackId;
import org.apache.ambari.server.state.stack.OsFamily;
import org.easymock.EasyMock;
import org.easymock.EasyMockSupport;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import com.google.common.eventbus.EventBus;
import com.google.inject.Binder;
import com.google.inject.Guice;
import com.google.inject.Injector;
import com.google.inject.Module;
/**
* Tests {@link ComponentVersionAlertRunnable}.
*/
public class ComponentVersionAlertRunnableTest extends EasyMockSupport {
private final static long CLUSTER_ID = 1;
private final static String CLUSTER_NAME = "c1";
private final static String HOSTNAME_1 = "c6401.ambari.apache.org";
private final static String HOSTNAME_2 = "c6402.ambari.apache.org";
private final static String EXPECTED_VERSION = "2.6.0.0-1234";
private final static String WRONG_VERSION = "9.9.9.9-9999";
private final static String DEFINITION_NAME = "ambari_server_component_version";
private final static String DEFINITION_SERVICE = "AMBARI";
private final static String DEFINITION_COMPONENT = "AMBARI_SERVER";
private final static String DEFINITION_LABEL = "Mock Definition";
private Clusters m_clusters;
private Cluster m_cluster;
private Injector m_injector;
private AlertDefinitionDAO m_definitionDao;
private AlertDefinitionEntity m_definition;
private MockEventListener m_listener;
private AmbariMetaInfo m_metaInfo;
private AlertEventPublisher m_eventPublisher;
private EventBus m_synchronizedBus;
private Collection<Host> m_hosts;
private Map<String, List<ServiceComponentHost>> m_hostComponentMap = new HashMap<>();
private StackId m_desidredStackId;
/**
*
*/
@Before
public void setup() throws Exception {
m_injector = Guice.createInjector(new MockModule());
m_definitionDao = m_injector.getInstance(AlertDefinitionDAO.class);
m_clusters = m_injector.getInstance(Clusters.class);
m_cluster = m_injector.getInstance(Cluster.class);
m_eventPublisher = m_injector.getInstance(AlertEventPublisher.class);
m_listener = m_injector.getInstance(MockEventListener.class);
m_definition = createNiceMock(AlertDefinitionEntity.class);
m_metaInfo = m_injector.getInstance(AmbariMetaInfo.class);
// !!! need a synchronous op for testing
m_synchronizedBus = new EventBus();
Field field = AlertEventPublisher.class.getDeclaredField("m_eventBus");
field.setAccessible(true);
field.set(m_eventPublisher, m_synchronizedBus);
// register mock listener
m_synchronizedBus.register(m_listener);
// create the cluster map
Map<String,Cluster> clusterMap = new HashMap<>();
clusterMap.put(CLUSTER_NAME, m_cluster);
// hosts
m_hosts = new ArrayList<>();
Host host1 = createNiceMock(Host.class);
Host host2 = createNiceMock(Host.class);
expect(host1.getHostName()).andReturn(HOSTNAME_1).atLeastOnce();
expect(host2.getHostName()).andReturn(HOSTNAME_2).atLeastOnce();
m_hosts.add(host1);
m_hosts.add(host2);
m_hostComponentMap.put(HOSTNAME_1, new ArrayList<ServiceComponentHost>());
m_hostComponentMap.put(HOSTNAME_2, new ArrayList<ServiceComponentHost>());
// desired stack
m_desidredStackId = createNiceMock(StackId.class);
expect(m_desidredStackId.getStackName()).andReturn("SOME-STACK").atLeastOnce();
expect(m_desidredStackId.getStackVersion()).andReturn("STACK-VERSION").atLeastOnce();
// components
ServiceComponentHost sch1_1 = createNiceMock(ServiceComponentHost.class);
ServiceComponentHost sch1_2 = createNiceMock(ServiceComponentHost.class);
ServiceComponentHost sch2_1 = createNiceMock(ServiceComponentHost.class);
ServiceComponentHost sch2_2 = createNiceMock(ServiceComponentHost.class);
expect(sch1_1.getServiceName()).andReturn("FOO").atLeastOnce();
expect(sch1_1.getServiceComponentName()).andReturn("FOO_COMPONENT").atLeastOnce();
expect(sch1_1.getVersion()).andReturn(EXPECTED_VERSION).atLeastOnce();
expect(sch1_1.getDesiredStackVersion()).andReturn(m_desidredStackId).atLeastOnce();
expect(sch1_2.getServiceName()).andReturn("BAR").atLeastOnce();
expect(sch1_2.getServiceComponentName()).andReturn("BAR_COMPONENT").atLeastOnce();
expect(sch1_2.getVersion()).andReturn(EXPECTED_VERSION).atLeastOnce();
expect(sch1_2.getDesiredStackVersion()).andReturn(m_desidredStackId).atLeastOnce();
expect(sch2_1.getServiceName()).andReturn("FOO").atLeastOnce();
expect(sch2_1.getServiceComponentName()).andReturn("FOO_COMPONENT").atLeastOnce();
expect(sch2_1.getVersion()).andReturn(EXPECTED_VERSION).atLeastOnce();
expect(sch2_1.getDesiredStackVersion()).andReturn(m_desidredStackId).atLeastOnce();
expect(sch2_2.getServiceName()).andReturn("BAZ").atLeastOnce();
expect(sch2_2.getServiceComponentName()).andReturn("BAZ_COMPONENT").atLeastOnce();
expect(sch2_2.getVersion()).andReturn(EXPECTED_VERSION).atLeastOnce();
expect(sch2_2.getDesiredStackVersion()).andReturn(m_desidredStackId).atLeastOnce();
m_hostComponentMap.get(HOSTNAME_1).add(sch1_1);
m_hostComponentMap.get(HOSTNAME_1).add(sch1_2);
m_hostComponentMap.get(HOSTNAME_2).add(sch2_1);
m_hostComponentMap.get(HOSTNAME_2).add(sch2_2);
// mock the definition for the alert
expect(m_definition.getDefinitionName()).andReturn(DEFINITION_NAME).atLeastOnce();
expect(m_definition.getServiceName()).andReturn(DEFINITION_SERVICE).atLeastOnce();
expect(m_definition.getComponentName()).andReturn(DEFINITION_COMPONENT).atLeastOnce();
expect(m_definition.getLabel()).andReturn(DEFINITION_LABEL).atLeastOnce();
expect(m_definition.getEnabled()).andReturn(true).atLeastOnce();
// mock the cluster
expect(m_cluster.getClusterId()).andReturn(CLUSTER_ID).atLeastOnce();
expect(m_cluster.getClusterName()).andReturn(CLUSTER_NAME).atLeastOnce();
expect(m_cluster.getHosts()).andReturn(m_hosts).atLeastOnce();
ClusterVersionEntity clusterVersionEntity = createNiceMock(ClusterVersionEntity.class);
RepositoryVersionEntity repositoryVersionEntity = createNiceMock(RepositoryVersionEntity.class);
expect(clusterVersionEntity.getRepositoryVersion()).andReturn(
repositoryVersionEntity).anyTimes();
expect(repositoryVersionEntity.getVersion()).andReturn(EXPECTED_VERSION).anyTimes();
expect(m_cluster.getCurrentClusterVersion()).andReturn(clusterVersionEntity).anyTimes();
// mock clusters
expect(m_clusters.getClusters()).andReturn(clusterMap).atLeastOnce();
// mock the definition DAO
expect(m_definitionDao.findByName(CLUSTER_ID, DEFINITION_NAME)).andReturn(
m_definition).atLeastOnce();
m_metaInfo.init();
EasyMock.expectLastCall().anyTimes();
// expect the cluster host mapping
expect(m_cluster.getServiceComponentHosts(HOSTNAME_1)).andReturn(
m_hostComponentMap.get(HOSTNAME_1)).once();
expect(m_cluster.getServiceComponentHosts(HOSTNAME_2)).andReturn(
m_hostComponentMap.get(HOSTNAME_2)).once();
// expect the component from metainfo
ComponentInfo componentInfo = createNiceMock(ComponentInfo.class);
expect(componentInfo.isVersionAdvertised()).andReturn(true).atLeastOnce();
expect(m_metaInfo.getComponent(EasyMock.anyString(), EasyMock.anyString(), EasyMock.anyString(),
EasyMock.anyString())).andReturn(componentInfo).atLeastOnce();
}
/**
* @throws Exception
*/
@After
public void teardown() throws Exception {
}
/**
* Tests that the alert is SKIPPED when there is an upgrade in progress.
*/
@Test
public void testUpgradeInProgress() throws Exception {
UpgradeEntity upgrade = createNiceMock(UpgradeEntity.class);
expect(upgrade.getToVersion()).andReturn("VERSION").once();
expect(m_cluster.getUpgradeInProgress()).andReturn(upgrade).once();
replayAll();
m_metaInfo.init();
// precondition that no events were fired
assertEquals(0, m_listener.getAlertEventReceivedCount(AlertReceivedEvent.class));
// instantiate and inject mocks
ComponentVersionAlertRunnable runnable = new ComponentVersionAlertRunnable(
m_definition.getDefinitionName());
m_injector.injectMembers(runnable);
// run the alert
runnable.run();
assertEquals(1, m_listener.getAlertEventReceivedCount(AlertReceivedEvent.class));
List<AlertEvent> events = m_listener.getAlertEventInstances(AlertReceivedEvent.class);
assertEquals(1, events.size());
AlertReceivedEvent event = (AlertReceivedEvent) events.get(0);
Alert alert = event.getAlert();
assertEquals("AMBARI", alert.getService());
assertEquals("AMBARI_SERVER", alert.getComponent());
assertEquals(AlertState.SKIPPED, alert.getState());
assertEquals(DEFINITION_NAME, alert.getName());
}
/**
* Tests the alert that fires when all components are reporting correct
* versions.
*/
@Test
public void testAllComponentVersionsCorrect() throws Exception {
replayAll();
m_metaInfo.init();
// precondition that no events were fired
assertEquals(0, m_listener.getAlertEventReceivedCount(AlertReceivedEvent.class));
// instantiate and inject mocks
ComponentVersionAlertRunnable runnable = new ComponentVersionAlertRunnable(
m_definition.getDefinitionName());
m_injector.injectMembers(runnable);
// run the alert
runnable.run();
assertEquals(1, m_listener.getAlertEventReceivedCount(AlertReceivedEvent.class));
List<AlertEvent> events = m_listener.getAlertEventInstances(AlertReceivedEvent.class);
assertEquals(1, events.size());
AlertReceivedEvent event = (AlertReceivedEvent) events.get(0);
Alert alert = event.getAlert();
assertEquals("AMBARI", alert.getService());
assertEquals("AMBARI_SERVER", alert.getComponent());
assertEquals(AlertState.OK, alert.getState());
assertEquals(DEFINITION_NAME, alert.getName());
verifyAll();
}
/**
* Tests that the alert which fires when there is a mismatch is a WARNING.
*/
@Test
public void testomponentVersionMismatch() throws Exception {
// reset expectation so that it returns a wrong version
ServiceComponentHost sch = m_hostComponentMap.get(HOSTNAME_1).get(0);
EasyMock.reset(sch);
expect(sch.getServiceName()).andReturn("FOO").atLeastOnce();
expect(sch.getServiceComponentName()).andReturn("FOO_COMPONENT").atLeastOnce();
expect(sch.getVersion()).andReturn(WRONG_VERSION).atLeastOnce();
expect(sch.getDesiredStackVersion()).andReturn(m_desidredStackId).atLeastOnce();
replayAll();
m_metaInfo.init();
// precondition that no events were fired
assertEquals(0, m_listener.getAlertEventReceivedCount(AlertReceivedEvent.class));
// instantiate and inject mocks
ComponentVersionAlertRunnable runnable = new ComponentVersionAlertRunnable(
m_definition.getDefinitionName());
m_injector.injectMembers(runnable);
// run the alert
runnable.run();
assertEquals(1, m_listener.getAlertEventReceivedCount(AlertReceivedEvent.class));
List<AlertEvent> events = m_listener.getAlertEventInstances(AlertReceivedEvent.class);
assertEquals(1, events.size());
AlertReceivedEvent event = (AlertReceivedEvent) events.get(0);
Alert alert = event.getAlert();
assertEquals("AMBARI", alert.getService());
assertEquals("AMBARI_SERVER", alert.getComponent());
assertEquals(AlertState.WARNING, alert.getState());
assertEquals(DEFINITION_NAME, alert.getName());
verifyAll();
}
/**
*
*/
private class MockModule implements Module {
/**
*
*/
@Override
public void configure(Binder binder) {
Cluster cluster = createNiceMock(Cluster.class);
binder.bind(Clusters.class).toInstance(createNiceMock(Clusters.class));
binder.bind(OsFamily.class).toInstance(createNiceMock(OsFamily.class));
binder.bind(DBAccessor.class).toInstance(createNiceMock(DBAccessor.class));
binder.bind(Cluster.class).toInstance(cluster);
binder.bind(AlertDefinitionDAO.class).toInstance(createNiceMock(AlertDefinitionDAO.class));
binder.bind(EntityManager.class).toInstance(createNiceMock(EntityManager.class));
binder.bind(AmbariMetaInfo.class).toInstance(createNiceMock(AmbariMetaInfo.class));
binder.bind(StackManagerFactory.class).toInstance(createNiceMock(StackManagerFactory.class));
}
}
}