Examples with SnapshottableDirectoryStatus org.apache.hadoop.hdfs.protocol.SnapshottableDirectoryStatus used on opensource projects

Example 11 with SnapshottableDirectoryStatus

use of org.apache.hadoop.hdfs.protocol.SnapshottableDirectoryStatus in project hadoop by apache.

the class SnapshotManager method getSnapshottableDirListing.

/**
   * List all the snapshottable directories that are owned by the current user.
   * @param userName Current user name.
   * @return Snapshottable directories that are owned by the current user,
   *         represented as an array of {@link SnapshottableDirectoryStatus}. If
   *         {@code userName} is null, return all the snapshottable dirs.
   */
public SnapshottableDirectoryStatus[] getSnapshottableDirListing(String userName) {
    if (snapshottables.isEmpty()) {
        return null;
    }
    List<SnapshottableDirectoryStatus> statusList = new ArrayList<SnapshottableDirectoryStatus>();
    for (INodeDirectory dir : snapshottables.values()) {
        if (userName == null || userName.equals(dir.getUserName())) {
            SnapshottableDirectoryStatus status = new SnapshottableDirectoryStatus(dir.getModificationTime(), dir.getAccessTime(), dir.getFsPermission(), dir.getUserName(), dir.getGroupName(), dir.getLocalNameBytes(), dir.getId(), dir.getChildrenNum(Snapshot.CURRENT_STATE_ID), dir.getDirectorySnapshottableFeature().getNumSnapshots(), dir.getDirectorySnapshottableFeature().getSnapshotQuota(), dir.getParent() == null ? DFSUtilClient.EMPTY_BYTES : DFSUtil.string2Bytes(dir.getParent().getFullPathName()));
            statusList.add(status);
        }
    }
    Collections.sort(statusList, SnapshottableDirectoryStatus.COMPARATOR);
    return statusList.toArray(new SnapshottableDirectoryStatus[statusList.size()]);
}