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.controller.internal;
  
  import java.util.Arrays;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.List;
  import java.util.Map;
  import java.util.Map.Entry;
  import java.util.Set;
  
  import org.apache.ambari.server.StaticallyInject;
  import org.apache.ambari.server.actionmanager.HostRoleStatus;
  import org.apache.ambari.server.controller.AmbariManagementController;
  import org.apache.ambari.server.controller.spi.NoSuchParentResourceException;
  import org.apache.ambari.server.controller.spi.NoSuchResourceException;
  import org.apache.ambari.server.controller.spi.Predicate;
  import org.apache.ambari.server.controller.spi.Request;
  import org.apache.ambari.server.controller.spi.RequestStatus;
  import org.apache.ambari.server.controller.spi.Resource;
  import org.apache.ambari.server.controller.spi.ResourceAlreadyExistsException;
  import org.apache.ambari.server.controller.spi.SystemException;
  import org.apache.ambari.server.controller.spi.UnsupportedPropertyException;
  import org.apache.ambari.server.orm.dao.HostRoleCommandDAO;
  import org.apache.ambari.server.orm.dao.HostRoleCommandStatusSummaryDTO;
  import org.apache.ambari.server.orm.dao.UpgradeDAO;
  import org.apache.ambari.server.orm.entities.UpgradeEntity;
  import org.apache.ambari.server.orm.entities.UpgradeGroupEntity;
  import org.apache.ambari.server.orm.entities.UpgradeItemEntity;
  
  import com.google.inject.Inject;
  
  /**
   * Manages groupings of upgrade items.
   */
  @StaticallyInject
  public class UpgradeGroupResourceProvider extends AbstractControllerResourceProvider {
  
    protected static final String UPGRADE_REQUEST_ID = "UpgradeGroup/request_id";
    protected static final String UPGRADE_GROUP_ID = "UpgradeGroup/group_id";
    protected static final String UPGRADE_CLUSTER_NAME = "UpgradeGroup/cluster_name";
    protected static final String UPGRADE_GROUP_NAME = "UpgradeGroup/name";
    protected static final String UPGRADE_GROUP_TITLE = "UpgradeGroup/title";
    protected static final String UPGRADE_GROUP_PROGRESS_PERCENT = "UpgradeGroup/progress_percent";
    protected static final String UPGRADE_GROUP_STATUS = "UpgradeGroup/status";
    protected static final String UPGRADE_GROUP_DISPLAY_STATUS = "UpgradeGroup/display_status";
  
    protected static final String UPGRADE_GROUP_TOTAL_TASKS = "UpgradeGroup/total_task_count";
    protected static final String UPGRADE_GROUP_IN_PROGRESS_TASKS = "UpgradeGroup/in_progress_task_count";
    protected static final String UPGRADE_GROUP_COMPLETED_TASKS = "UpgradeGroup/completed_task_count";
  
  
    private static final Set<String> PK_PROPERTY_IDS = new HashSet<>(
      Arrays.asList(UPGRADE_REQUEST_ID, UPGRADE_GROUP_ID));
    private static final Set<String> PROPERTY_IDS = new HashSet<>();
  
    private static final Map<Resource.Type, String> KEY_PROPERTY_IDS = new HashMap<>();
  
    @Inject
    private static UpgradeDAO m_dao = null;
  
    @Inject
    private static HostRoleCommandDAO s_hostRoleCommandDao;
  
    static {
      // properties
      PROPERTY_IDS.add(UPGRADE_REQUEST_ID);
      PROPERTY_IDS.add(UPGRADE_GROUP_ID);
      PROPERTY_IDS.add(UPGRADE_GROUP_NAME);
      PROPERTY_IDS.add(UPGRADE_GROUP_TITLE);
      PROPERTY_IDS.add(UPGRADE_GROUP_PROGRESS_PERCENT);
      PROPERTY_IDS.add(UPGRADE_GROUP_STATUS);
      PROPERTY_IDS.add(UPGRADE_GROUP_DISPLAY_STATUS);
      PROPERTY_IDS.add(UPGRADE_GROUP_TOTAL_TASKS);
      PROPERTY_IDS.add(UPGRADE_GROUP_IN_PROGRESS_TASKS);
      PROPERTY_IDS.add(UPGRADE_GROUP_COMPLETED_TASKS);
  
      // keys
      KEY_PROPERTY_IDS.put(Resource.Type.UpgradeGroup, UPGRADE_GROUP_ID);
      KEY_PROPERTY_IDS.put(Resource.Type.Upgrade, UPGRADE_REQUEST_ID);
    }
  
    /**
     * Constructor.
     *
     * @param controller the controller
     */
    UpgradeGroupResourceProvider(AmbariManagementController controller) {
      super(Resource.Type.UpgradeGroup, PROPERTY_IDS, KEY_PROPERTY_IDS, controller);
    }
  
    @Override
    public RequestStatus createResources(final Request request)
        throws SystemException,
        UnsupportedPropertyException, ResourceAlreadyExistsException,
        NoSuchParentResourceException {
      throw new SystemException("Upgrade Groups can only be created with an upgrade");
    }
  
    @Override
    public Set<Resource> getResources(Request request, Predicate predicate)
        throws SystemException, UnsupportedPropertyException,
        NoSuchResourceException, NoSuchParentResourceException {
  
      Set<Resource> results = new HashSet<>();
      Set<String> requestPropertyIds = getRequestPropertyIds(request, predicate);
  
      for (Map<String, Object> propertyMap : getPropertyMaps(predicate)) {
        String upgradeIdStr = (String) propertyMap.get(UPGRADE_REQUEST_ID);
  
        if (null == upgradeIdStr || upgradeIdStr.isEmpty()) {
          throw new IllegalArgumentException("The upgrade id is required when querying for upgrades");
        }
  
        Long upgradeId = Long.valueOf(upgradeIdStr);
        UpgradeEntity upgrade = m_dao.findUpgradeByRequestId(upgradeId);
  
        Long requestId = upgrade.getRequestId();
  
        List<UpgradeGroupEntity> groups = upgrade.getUpgradeGroups();
        if (null != groups) {
  
          Map<Long, HostRoleCommandStatusSummaryDTO> map = s_hostRoleCommandDao.findAggregateCounts(requestId);
  
          for (UpgradeGroupEntity group : groups) {
            Resource r = toResource(upgrade, group, requestPropertyIds);
  
            Set<Long> stageIds = new HashSet<>();
            for (UpgradeItemEntity itemEntity : group.getItems()) {
              stageIds.add(itemEntity.getStageId());
            }
  
            aggregate(map, r, requestId, stageIds, requestPropertyIds);
  
            results.add(r);
          }
        }
      }
      return results;
    }
  
    @Override
    public RequestStatus updateResources(final Request request,
        Predicate predicate)
        throws SystemException, UnsupportedPropertyException,
        NoSuchResourceException, NoSuchParentResourceException {
  
      throw new SystemException("Upgrade groups cannot be modified");
    }
  
    @Override
    public RequestStatus deleteResources(Request request, Predicate predicate)
        throws SystemException, UnsupportedPropertyException,
        NoSuchResourceException, NoSuchParentResourceException {
      throw new SystemException("Upgrade groups cannot be removed");
    }
  
    @Override
    protected Set<String> getPKPropertyIds() {
      return PK_PROPERTY_IDS;
    }
  
    private Resource toResource(UpgradeEntity upgrade, UpgradeGroupEntity group, Set<String> requestedIds) {
      ResourceImpl resource = new ResourceImpl(Resource.Type.UpgradeGroup);
  
      setResourceProperty(resource, UPGRADE_REQUEST_ID, upgrade.getRequestId(), requestedIds);
      setResourceProperty(resource, UPGRADE_GROUP_ID, group.getId(), requestedIds);
      setResourceProperty(resource, UPGRADE_GROUP_NAME, group.getName(), requestedIds);
      setResourceProperty(resource, UPGRADE_GROUP_TITLE, group.getTitle(), requestedIds);
  
      return resource;
    }
  
    /**
     * Aggregates status, percent complete, and count information for stages and
     * puts the results on the upgrade group
     *
     * @param upgradeGroup  the resource representing an upgrade group
     * @param stageIds      the set of resources ids of the stages
     * @param requestedIds  the ids for the request
     */
    private void aggregate(Map<Long, HostRoleCommandStatusSummaryDTO> smap,
        Resource upgradeGroup, Long requestId, Set<Long> stageIds, Set<String> requestedIds) {
  
      int size = 0;
  
      Map<HostRoleStatus, Integer> counts = CalculatedStatus.calculateTaskStatusCounts(smap, stageIds);
  
      CalculatedStatus stageStatus = CalculatedStatus.statusFromStageSummary(smap, stageIds);
  
      for (Integer i : counts.values()) {
        size += i.intValue();
      }
  
      Integer inProgress = 0;
      Integer completed = 0;
  
      for (Entry<HostRoleStatus, Integer> entry : counts.entrySet()) {
        if (entry.getKey().isCompletedState()) {
          completed += entry.getValue();
        } else if (entry.getKey().isInProgress()) {
          inProgress += entry.getValue();
        }
      }
      setResourceProperty(upgradeGroup, UPGRADE_GROUP_TOTAL_TASKS, size, requestedIds);
      setResourceProperty(upgradeGroup, UPGRADE_GROUP_IN_PROGRESS_TASKS, inProgress, requestedIds);
      setResourceProperty(upgradeGroup, UPGRADE_GROUP_COMPLETED_TASKS, completed, requestedIds);
  
      setResourceProperty(upgradeGroup, UPGRADE_GROUP_STATUS, stageStatus.getStatus(), requestedIds);
      setResourceProperty(upgradeGroup, UPGRADE_GROUP_DISPLAY_STATUS, stageStatus.getDisplayStatus(), requestedIds);
      setResourceProperty(upgradeGroup, UPGRADE_GROUP_PROGRESS_PERCENT, stageStatus.getPercent(), requestedIds);
    }
  }
  