/**
* 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 org.easymock.EasyMock.createNiceMock;
import static org.easymock.EasyMock.expect;
import static org.easymock.EasyMock.replay;
import static org.easymock.EasyMock.verify;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.persistence.EntityManager;
import org.apache.ambari.server.actionmanager.ActionManager;
import org.apache.ambari.server.actionmanager.HostRoleCommandFactory;
import org.apache.ambari.server.alerts.AmbariPerformanceRunnable.PerformanceArea;
import org.apache.ambari.server.controller.AmbariManagementController;
import org.apache.ambari.server.controller.internal.ClusterResourceProvider;
import org.apache.ambari.server.controller.spi.ClusterController;
import org.apache.ambari.server.controller.utilities.ClusterControllerHelper;
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.dao.AlertsDAO;
import org.apache.ambari.server.orm.dao.HostRoleCommandDAO;
import org.apache.ambari.server.orm.dao.RequestDAO;
import org.apache.ambari.server.orm.entities.AlertCurrentEntity;
import org.apache.ambari.server.orm.entities.AlertDefinitionEntity;
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.alert.AlertDefinition;
import org.apache.ambari.server.state.alert.AlertDefinitionFactory;
import org.apache.ambari.server.state.alert.ServerSource;
import org.apache.ambari.server.state.stack.OsFamily;
import org.easymock.EasyMock;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.api.easymock.PowerMock;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
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 AmbariPerformanceRunnable}.
*/
@RunWith(PowerMockRunner.class)
@PrepareForTest({ ClusterControllerHelper.class, AmbariPerformanceRunnable.class,
PerformanceArea.class })
public class AmbariPerformanceRunnableTest {
private final static long CLUSTER_ID = 1;
private final static String CLUSTER_NAME = "c1";
private final static String DEFINITION_NAME = "ambari_server_performance";
private final static String DEFINITION_SERVICE = "AMBARI";
private final static String DEFINITION_COMPONENT = "AMBARI_SERVER";
private final static String DEFINITION_LABEL = "Mock Definition";
private final static int DEFINITION_INTERVAL = 1;
private Clusters m_clusters;
private Cluster m_cluster;
private Injector m_injector;
private AlertsDAO m_alertsDao;
private AlertDefinitionDAO m_definitionDao;
private AlertDefinitionEntity m_definition;
private List<AlertCurrentEntity> m_currentAlerts = new ArrayList<>();
private MockEventListener m_listener;
private AlertEventPublisher m_eventPublisher;
private EventBus m_synchronizedBus;
/**
*
*/
@Before
public void setup() throws Exception {
m_injector = Guice.createInjector(new MockModule());
m_alertsDao = m_injector.getInstance(AlertsDAO.class);
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 = EasyMock.createNiceMock(AlertDefinitionEntity.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);
// 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();
expect(m_definition.getScheduleInterval()).andReturn(DEFINITION_INTERVAL).atLeastOnce();
// mock the cluster
expect(m_cluster.getClusterId()).andReturn(CLUSTER_ID).atLeastOnce();
// 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();
// mock the current dao
expect(m_alertsDao.findCurrentByCluster(CLUSTER_ID)).andReturn(
m_currentAlerts).atLeastOnce();
// mock the factory and what it returns
AlertDefinition definition = new AlertDefinition();
definition.setDefinitionId(1L);
definition.setName(DEFINITION_NAME);
ServerSource source = new ServerSource();
definition.setSource(source);
AlertDefinitionFactory factory = m_injector.getInstance(AlertDefinitionFactory.class);
expect(factory.coerce(EasyMock.anyObject(AlertDefinitionEntity.class))).andReturn(definition).atLeastOnce();
ClusterController clusterController = m_injector.getInstance(ClusterController.class);
PowerMock.mockStatic(ClusterControllerHelper.class);
expect(ClusterControllerHelper.getClusterController()).andReturn(clusterController);
PowerMock.replay(ClusterControllerHelper.class);
replay(m_definition, m_cluster, m_clusters, m_definitionDao, m_alertsDao, factory,
clusterController);
}
/**
* @throws Exception
*/
@After
public void teardown() throws Exception {
}
/**
* Tests that the event is triggerd with a status of OK if all performance
* areas pass.
*/
@Test
public void testAlertFiresOKEvent() {
// mock the entire enum so that no problems are reported
PowerMock.mockStatic(PerformanceArea.class);
expect(PerformanceArea.values()).andReturn(new PerformanceArea[0]);
PowerMock.replay(PerformanceArea.class);
// instantiate and inject mocks
AmbariPerformanceRunnable runnable = new AmbariPerformanceRunnable(
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());
verify(m_cluster, m_clusters, m_definitionDao);
}
/**
* Tests that the event is triggerd with a status of UNKNOWN.
*/
@Test
public void testAlertFiresUnknownEvent() {
// mock one area, leaving others to fail
RequestDAO requestDAO = m_injector.getInstance(RequestDAO.class);
expect(requestDAO.findAllRequestIds(EasyMock.anyInt(), EasyMock.anyBoolean())).andReturn(
new ArrayList<Long>());
replay(requestDAO);
// instantiate and inject mocks
AmbariPerformanceRunnable runnable = new AmbariPerformanceRunnable(
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.UNKNOWN, alert.getState());
assertEquals(DEFINITION_NAME, alert.getName());
// verify that even though there is 1 UNKNOWN, there should also be 1 OK as
// well
assertTrue(alert.getText().contains("(OK)"));
verify(m_cluster, m_clusters, m_definitionDao);
}
/**
* Tests that the event is triggerd with a status of UNKNOWN.
*/
@Test
public void testThresholdCalculations() {
// instantiate and inject mocks
AmbariPerformanceRunnable runnable = new AmbariPerformanceRunnable(
m_definition.getDefinitionName());
assertEquals(1, runnable.getThresholdValue(1, 2));
assertEquals(1, runnable.getThresholdValue("1", 2));
assertEquals(1, runnable.getThresholdValue("1.00", 2));
assertEquals(1, runnable.getThresholdValue("foo", 1));
assertEquals(1, runnable.getThresholdValue(new Object(), 1));
}
/**
*
*/
private class MockModule implements Module {
/**
*
*/
@Override
public void configure(Binder binder) {
Cluster cluster = EasyMock.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(AlertsDAO.class).toInstance(createNiceMock(AlertsDAO.class));
binder.bind(EntityManager.class).toInstance(createNiceMock(EntityManager.class));
binder.bind(ActionManager.class).toInstance(createNiceMock(ActionManager.class));
binder.bind(HostRoleCommandFactory.class).toInstance(createNiceMock(HostRoleCommandFactory.class));
binder.bind(HostRoleCommandDAO.class).toInstance(createNiceMock(HostRoleCommandDAO.class));
binder.bind(AmbariManagementController.class).toInstance(createNiceMock(AmbariManagementController.class));
binder.bind(AlertDefinitionFactory.class).toInstance(createNiceMock(AlertDefinitionFactory.class));
binder.bind(ClusterResourceProvider.class).toInstance(createNiceMock(ClusterResourceProvider.class));
binder.bind(ClusterController.class).toInstance(createNiceMock(ClusterController.class));
binder.bind(RequestDAO.class).toInstance(createNiceMock(RequestDAO.class));
}
}
}