content: /**
   * 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.serveraction.upgrades;
  
  import static org.easymock.EasyMock.expect;
  import static org.easymock.EasyMock.expectLastCall;
  
  import java.util.Collection;
  import java.util.HashMap;
  import java.util.Map;
  
  import org.apache.ambari.server.ServiceComponentNotFoundException;
  import org.apache.ambari.server.ServiceNotFoundException;
  import org.apache.ambari.server.agent.ExecutionCommand;
  import org.apache.ambari.server.alerts.AmbariPerformanceRunnable;
  import org.apache.ambari.server.events.listeners.upgrade.StackVersionListener;
  import org.apache.ambari.server.stack.MasterHostResolver;
  import org.apache.ambari.server.stack.upgrade.AddComponentTask;
  import org.apache.ambari.server.stack.upgrade.ExecuteHostType;
  import org.apache.ambari.server.stack.upgrade.orchestrate.UpgradeContext;
  import org.apache.ambari.server.state.Cluster;
  import org.apache.ambari.server.state.Clusters;
  import org.apache.ambari.server.state.Host;
  import org.apache.ambari.server.state.Service;
  import org.apache.ambari.server.state.ServiceComponent;
  import org.apache.ambari.server.state.ServiceComponentHost;
  import org.apache.ambari.server.state.State;
  import org.easymock.EasyMockSupport;
  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.collect.Lists;
  import com.google.gson.Gson;
  
  /**
   * Tests {@link AddComponentAction}.
   */
  /**
   * Tests {@link AmbariPerformanceRunnable}.
   */
  @RunWith(PowerMockRunner.class)
  @PrepareForTest({ AddComponentAction.class, MasterHostResolver.class })
  public class AddComponentActionTest extends EasyMockSupport {
  
    private static final String CANDIDATE_SERVICE = "FOO-SERVICE";
    private static final String CANDIDATE_COMPONENT = "FOO-COMPONENT";
    private static final String NEW_SERVICE = CANDIDATE_SERVICE;
    private static final String NEW_COMPONENT = "FOO-NEW-COMPONENT";
    private static final String CLUSTER_NAME = "c1";
  
    private final Map<String, String> m_commandParams = new HashMap<>();
  
    private final Clusters m_mockClusters = createNiceMock(Clusters.class);
    private final Cluster m_mockCluster = createNiceMock(Cluster.class);
    private final Service m_mockCandidateService = createNiceMock(Service.class);
    private final ServiceComponent m_mockCandidateServiceComponent = createNiceMock(ServiceComponent.class);
  
    private final UpgradeContext m_mockUpgradeContext = createNiceMock(UpgradeContext.class);
  
    private final String CANDIDATE_HOST_NAME = "c6401.ambari.apache.org";
    private final Host m_mockHost = createStrictMock(Host.class);
    private final Collection<Host> m_candidateHosts = Lists.newArrayList(m_mockHost);
  
    private AddComponentAction m_action;
  
    @Before
    public void before() throws Exception {
      PowerMock.mockStatic(MasterHostResolver.class);
      expect(MasterHostResolver.getCandidateHosts(m_mockCluster, ExecuteHostType.ALL,
          CANDIDATE_SERVICE, CANDIDATE_COMPONENT)).andReturn(m_candidateHosts).once();
      PowerMock.replay(MasterHostResolver.class);
  
      m_action = PowerMock.createNicePartialMock(AddComponentAction.class, "getUpgradeContext",
          "createCommandReport", "getClusters", "getGson");
  
      ExecutionCommand executionCommand = createNiceMock(ExecutionCommand.class);
      expect(executionCommand.getCommandParams()).andReturn(m_commandParams).once();
      m_action.setExecutionCommand(executionCommand);
  
      expect(m_action.getClusters()).andReturn(m_mockClusters).atLeastOnce();
      expect(m_action.getUpgradeContext(m_mockCluster)).andReturn(m_mockUpgradeContext).once();
      expect(m_action.getGson()).andReturn(new Gson()).once();
  
      AddComponentTask addComponentTask = new AddComponentTask();
      addComponentTask.service = NEW_SERVICE;
      addComponentTask.component = NEW_COMPONENT;
      addComponentTask.hostService = CANDIDATE_SERVICE;
      addComponentTask.hostComponent = CANDIDATE_COMPONENT;
      addComponentTask.hosts = ExecuteHostType.ALL;
  
      String addComponentTaskJson = addComponentTask.toJson();
      m_commandParams.put("clusterName", CLUSTER_NAME);
      m_commandParams.put(AddComponentTask.PARAMETER_SERIALIZED_ADD_COMPONENT_TASK,
          addComponentTaskJson);
  
      expect(m_mockClusters.getCluster(CLUSTER_NAME)).andReturn(m_mockCluster).once();
    }
  
    @After
    public void after() throws Exception {
      PowerMock.verify(m_action);
    }
  
    /**
     * Tests that adding a component during upgrade invokes the correct methods.
     *
     * @throws Exception
     */
    @Test
    public void testAddComponentDuringUpgrade() throws Exception {
      expect(m_mockCluster.getService(NEW_SERVICE)).andReturn(m_mockCandidateService).once();
      expect(m_mockCandidateService.getServiceComponent(NEW_COMPONENT)).andThrow(new ServiceComponentNotFoundException(CLUSTER_NAME, NEW_SERVICE, NEW_COMPONENT));
      expect(m_mockCandidateService.addServiceComponent(NEW_COMPONENT)).andReturn(m_mockCandidateServiceComponent).once();
  
      expect(m_mockHost.getHostName()).andReturn(CANDIDATE_HOST_NAME).atLeastOnce();
  
      m_mockCandidateServiceComponent.setDesiredState(State.INSTALLED);
      expectLastCall().once();
  
      Map<String, ServiceComponentHost> existingSCHs = new HashMap<>();
      expect(m_mockCandidateServiceComponent.getServiceComponentHosts()).andReturn(existingSCHs).once();
  
      ServiceComponentHost mockServiceComponentHost = createNiceMock(ServiceComponentHost.class);
      expect(m_mockCandidateServiceComponent.addServiceComponentHost(CANDIDATE_HOST_NAME)).andReturn(mockServiceComponentHost).once();
      mockServiceComponentHost.setState(State.INSTALLED);
      expectLastCall().once();
  
      mockServiceComponentHost.setDesiredState(State.INSTALLED);
      expectLastCall().once();
  
      mockServiceComponentHost.setVersion(StackVersionListener.UNKNOWN_VERSION);
      expectLastCall().once();
  
      PowerMock.replay(m_action);
      replayAll();
  
      m_action.execute(null);
  
      verifyAll();
    }
  
    /**
     * Tests that we fail without any candidates.
     *
     * @throws Exception
     */
    @Test
    public void testAddComponentDuringUpgradeFailsWithNoCandidates() throws Exception {
      PowerMock.replay(m_action);
      replayAll();
  
      m_candidateHosts.clear();
  
      m_action.execute(null);
  
      verifyAll();
    }
  
    /**
     * Tests that we fail when the candidateg service isn't installed in the
     * cluster.
     *
     * @throws Exception
     */
    @Test
    public void testAddComponentWhereServiceIsNotInstalled() throws Exception {
      expect(m_mockCluster.getService(NEW_SERVICE)).andThrow(
          new ServiceNotFoundException(CLUSTER_NAME, CANDIDATE_SERVICE)).once();
  
      PowerMock.replay(m_action);
      replayAll();
  
      m_action.execute(null);
  
      verifyAll();
    }
  
  }
  