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
  // 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 com.cloud.usage.parser;
  
  import java.text.DecimalFormat;
  import java.util.Date;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import javax.inject.Inject;
  
  import com.cloud.usage.UsageManagerImpl;
  import com.cloud.utils.DateUtil;
  import org.springframework.stereotype.Component;
  
  import org.apache.cloudstack.usage.UsageTypes;
  
  import com.cloud.usage.UsageVMSnapshotVO;
  import com.cloud.usage.UsageVO;
  import com.cloud.usage.dao.UsageVMSnapshotDao;
  import com.cloud.user.AccountVO;
  
  import static com.cloud.utils.NumbersUtil.toHumanReadableSize;
  
  @Component
  public class VMSnapshotUsageParser extends UsageParser {
      @Inject
      private UsageVMSnapshotDao usageVMSnapshotDao;
  
      @Override
      public String getParserName() {
          return "VM Snapshot";
      }
  
      @Override
      protected boolean parse(AccountVO account, Date startDate, Date endDate) {
          if ((endDate == null) || endDate.after(new Date())) {
              endDate = new Date();
          }
  
          List<UsageVMSnapshotVO> usageUsageVMSnapshots = usageVMSnapshotDao.getUsageRecords(account.getId(), account.getDomainId(), startDate, endDate);
  
          if (usageUsageVMSnapshots.isEmpty()) {
              logger.debug("No VM snapshot usage events for this period");
              return true;
          }
  
          Map<String, UsageVMSnapshotVO> unprocessedUsage = new HashMap<String, UsageVMSnapshotVO>();
          for (UsageVMSnapshotVO usageRec : usageUsageVMSnapshots) {
              long zoneId = usageRec.getZoneId();
              Long volId = usageRec.getVolumeId();
              long vmId = usageRec.getVmId();
              String key = vmId + ":" + volId;
              if (usageRec.getCreated().before(startDate)) {
                  unprocessedUsage.put(key, usageRec);
                  continue;
              }
              UsageVMSnapshotVO previousEvent = usageVMSnapshotDao.getPreviousUsageRecord(usageRec);
              if (previousEvent == null || previousEvent.getSize() == 0) {
                  unprocessedUsage.put(key, usageRec);
                  continue;
              }
  
              Date previousCreated = previousEvent.getCreated();
              if (previousCreated.before(startDate)) {
                  previousCreated = startDate;
              }
  
              Date createDate = usageRec.getCreated();
              long duration = (createDate.getTime() - previousCreated.getTime()) + 1;
  
              createUsageRecord(UsageTypes.VM_SNAPSHOT, duration, previousCreated, createDate, account, volId, zoneId, previousEvent.getDiskOfferingId(), vmId,
                  previousEvent.getSize(), usageRec.getVmSnapshotId());
              previousEvent.setProcessed(new Date());
              usageVMSnapshotDao.update(previousEvent);
  
              if (usageRec.getSize() == 0) {
                  usageRec.setProcessed(new Date());
                  usageVMSnapshotDao.update(usageRec);
              } else
                  unprocessedUsage.put(key, usageRec);
          }
  
          for (String key : unprocessedUsage.keySet()) {
              UsageVMSnapshotVO usageRec = unprocessedUsage.get(key);
              Date created = usageRec.getCreated();
              if (created.before(startDate)) {
                  created = startDate;
              }
              long duration = (endDate.getTime() - created.getTime()) + 1;
              createUsageRecord(UsageTypes.VM_SNAPSHOT, duration, created, endDate, account, usageRec.getVolumeId(), usageRec.getZoneId(), usageRec.getDiskOfferingId(),
                  usageRec.getVmId(), usageRec.getSize(), usageRec.getVmSnapshotId());
          }
  
          return true;
      }
  
      private void createUsageRecord(int type, long runningTime, Date startDate, Date endDate, AccountVO account, long volId, long zoneId, Long doId, Long vmId,
                                            long size, Long vmSnapshotId) {
          // Our smallest increment is hourly for now
          logger.debug("Total running time {} ms", runningTime);
  
          float usage = runningTime / 1000f / 60f / 60f;
  
          DecimalFormat dFormat = new DecimalFormat("#.######");
          String usageDisplay = dFormat.format(usage);
  
          logger.debug("Creating usage record for VMSnapshot with id [{}], vol [{}], usage [{}], startDate [{}], and endDate [{}], for account [{}].",
                  vmSnapshotId, volId, usageDisplay, DateUtil.displayDateInTimezone(UsageManagerImpl.getUsageAggregationTimeZone(), startDate),
                  DateUtil.displayDateInTimezone(UsageManagerImpl.getUsageAggregationTimeZone(), endDate), account.getId());
  
          // Create the usage record
          String usageDesc = "VMSnapshot Id: " + vmSnapshotId + " Usage: " + "VM Id: " + vmId + " Volume Id: " + volId + " ";
  
          if (doId != null) {
              usageDesc += " DiskOffering: " + doId;
          }
  
          usageDesc += " Size: " + toHumanReadableSize(size);
  
          UsageVO usageRecord =
              new UsageVO(zoneId, account.getId(), account.getDomainId(), usageDesc, usageDisplay + " Hrs", type, new Double(usage), vmId, null, doId, null, vmSnapshotId, size,
                  startDate, endDate);
          usageDao.persist(usageRecord);
      }
  
  }
  