How to use

getDataCenterId

method

in

org.apache.cloudstack.engine.subsystem.api.storage.SnapshotInfo

private HostVO getHost(SnapshotInfo snapshotInfo) {
  HypervisorType hypervisorType = snapshotInfo.getHypervisorType();
  if (HypervisorType.XenServer.equals(hypervisorType)) {
    HostVO hostVO = getHost(snapshotInfo.getDataCenterId(), hypervisorType, true);
    if (hostVO == null) {
      hostVO = getHost(snapshotInfo.getDataCenterId(), hypervisorType, false);
      if (hostVO == null) {
        throw new CloudRuntimeException("Unable to locate an applicable host in data center with ID = " + snapshotInfo.getDataCenterId());
      }
    }
    return hostVO;
  }
  if (HypervisorType.VMware.equals(hypervisorType) || HypervisorType.KVM.equals(hypervisorType)) {
    return getHost(snapshotInfo.getDataCenterId(), hypervisorType, false);
  }
  throw new CloudRuntimeException("Unsupported hypervisor type");
}

private DataStore findSnapshotImageStore(SnapshotInfo snapshot) {
  Boolean fullSnapshot = true;
  Boolean snapshotFullBackup = snapshot.getFullBackup();
  if (snapshotFullBackup != null) {
    fullSnapshot = snapshotFullBackup;
  }
  if (fullSnapshot) {
    return dataStoreMgr.getImageStore(snapshot.getDataCenterId());
  } else {
    SnapshotInfo parentSnapshot = snapshot.getParent();
    // Note that DataStore information in parentSnapshot is for primary
    // data store here, we need to
    // find the image store where the parent snapshot backup is located
    SnapshotDataStoreVO parentSnapshotOnBackupStore = null;
    if (parentSnapshot != null) {
      parentSnapshotOnBackupStore = _snapshotStoreDao.findBySnapshot(parentSnapshot.getId(), DataStoreRole.Image);
    }
    if (parentSnapshotOnBackupStore == null) {
      return dataStoreMgr.getImageStore(snapshot.getDataCenterId());
    }
    return dataStoreMgr.getDataStore(parentSnapshotOnBackupStore.getDataStoreId(), parentSnapshotOnBackupStore.getRole());
  }
}

UsageEventUtils.publishUsageEvent(EventTypes.EVENT_SNAPSHOT_ON_PRIMARY, snap.getAccountId(), snap.getDataCenterId(), snap.getId(),
    snap.getName(), null, null, snapshotOnPrimary.getSize(), snapshotOnPrimary.getSize(), snap.getClass().getName(), snap.getUuid());
return result;

UsageEventUtils.publishUsageEvent(EventTypes.EVENT_SNAPSHOT_CREATE, snapshot.getAccountId(), snapshot.getDataCenterId(), snapshotId, snapshot.getName(),
  null, null, volume.getSize(), snapshot.getClass().getName(), snapshot.getUuid());

UsageEventUtils.publishUsageEvent(EventTypes.EVENT_SNAPSHOT_CREATE, snapshot.getAccountId(), snapshot.getDataCenterId(), snapshotId, snapshot.getName(),
  null, null, snapshotStoreRef.getPhysicalSize(), volume.getSize(), snapshot.getClass().getName(), snapshot.getUuid());

if (snapshotDataStoreVO != null) {
  parentSnapshotId = snapshotDataStoreVO.getParentSnapshotId();
  UsageEventUtils.publishUsageEvent(EventTypes.EVENT_SNAPSHOT_OFF_PRIMARY, parent.getAccountId(), parent.getDataCenterId(), parent.getId(),
      parent.getName(), null, null, 0L, 0L, parent.getClass().getName(), parent.getUuid());
  snapshotStoreDao.remove(snapshotDataStoreVO.getId());

HostVO hostVO = getHost(snapshotInfo.getDataCenterId(), HypervisorType.XenServer, true);

hostVO = getHost(snapshotInfo.getDataCenterId(), snapshotInfo.getHypervisorType(), false);

hostVO = getHost(snapshotInfo.getDataCenterId(), snapshotInfo.getHypervisorType(), false);