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.checks;
  
  import java.text.MessageFormat;
  import java.util.HashSet;
  import java.util.LinkedHashSet;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  
  import org.apache.ambari.annotations.UpgradeCheckInfo;
  import org.apache.ambari.server.AmbariException;
  import org.apache.ambari.server.orm.models.HostComponentSummary;
  import org.apache.ambari.server.state.Cluster;
  import org.apache.ambari.server.state.Host;
  import org.apache.ambari.server.state.MaintenanceState;
  import org.apache.ambari.server.state.Service;
  import org.apache.ambari.server.state.ServiceComponent;
  import org.apache.ambari.server.state.State;
  import org.apache.ambari.spi.upgrade.UpgradeCheckDescription;
  import org.apache.ambari.spi.upgrade.UpgradeCheckGroup;
  import org.apache.ambari.spi.upgrade.UpgradeCheckRequest;
  import org.apache.ambari.spi.upgrade.UpgradeCheckResult;
  import org.apache.ambari.spi.upgrade.UpgradeCheckStatus;
  import org.apache.ambari.spi.upgrade.UpgradeCheckType;
  import org.apache.ambari.spi.upgrade.UpgradeType;
  import org.apache.commons.lang.StringUtils;
  
  import com.google.common.collect.ImmutableMap;
  import com.google.inject.Singleton;
  
  /**
   * Checks that service components are installed.
   */
  @Singleton
  @UpgradeCheckInfo(
      group = UpgradeCheckGroup.LIVELINESS,
      order = 2.0f,
      required = { UpgradeType.ROLLING, UpgradeType.NON_ROLLING, UpgradeType.HOST_ORDERED })
  public class ComponentsInstallationCheck extends ClusterCheck {
  
    static final UpgradeCheckDescription COMPONENTS_INSTALLATION = new UpgradeCheckDescription("COMPONENTS_INSTALLATION",
        UpgradeCheckType.SERVICE,
        "All service components must be installed",
        new ImmutableMap.Builder<String, String>()
          .put(UpgradeCheckDescription.DEFAULT,
              "The following Services must be reinstalled: {{fails}}. Try to reinstall the service components in INSTALL_FAILED state.").build());
  
    /**
     * Constructor.
     */
    public ComponentsInstallationCheck() {
      super(COMPONENTS_INSTALLATION);
    }
  
    @Override
    public UpgradeCheckResult perform(UpgradeCheckRequest request) throws AmbariException {
      UpgradeCheckResult result = new UpgradeCheckResult(this);
  
      final String clusterName = request.getClusterName();
      final Cluster cluster = clustersProvider.get().getCluster(clusterName);
      Set<String> failedServiceNames = new HashSet<>();
  
      // Preq-req check should fail if any service component is in INSTALL_FAILED state
      Set<String> installFailedHostComponents = new HashSet<>();
  
      Set<String> servicesInUpgrade = checkHelperProvider.get().getServicesInUpgrade(request);
      for (String serviceName : servicesInUpgrade) {
        final Service service = cluster.getService(serviceName);
        // Skip service if it is in maintenance mode
        if (service.getMaintenanceState() == MaintenanceState.ON) {
          continue;
        }
  
        Map<String, ServiceComponent> serviceComponents = service.getServiceComponents();
        for (Map.Entry<String, ServiceComponent> component : serviceComponents.entrySet()) {
          ServiceComponent serviceComponent = component.getValue();
          if (serviceComponent.isVersionAdvertised()) {
            List<HostComponentSummary> hostComponentSummaries = HostComponentSummary.getHostComponentSummaries(
                service.getName(), serviceComponent.getName());
  
            for (HostComponentSummary hcs : hostComponentSummaries) {
              // Skip host if it is in maintenance mode
              Host host = clustersProvider.get().getHost(hcs.getHostName());
              if (host.getMaintenanceState(cluster.getClusterId()) != MaintenanceState.ON) {
                if (hcs.getCurrentState() == State.INSTALL_FAILED) {
  
                  result.getFailedDetail().add(hcs);
  
                  failedServiceNames.add(service.getName());
                  installFailedHostComponents.add(MessageFormat.format("[{0}:{1} on {2}]",
                      service.getName(), serviceComponent.getName(), hcs.getHostName()));
                }
              }
            }
          }
        }
      }
  
      if(!installFailedHostComponents.isEmpty()) {
        String message = MessageFormat.format("Service components in INSTALL_FAILED state: {0}.",
            StringUtils.join(installFailedHostComponents, ", "));
  
        result.setFailedOn(new LinkedHashSet<>(failedServiceNames));
        result.setStatus(UpgradeCheckStatus.FAIL);
        result.setFailReason(
            "Found service components in INSTALL_FAILED state. Please re-install these components. " + message);
      }
  
      return result;
    }
  }
  