本文整理汇总了Java中org.apache.hadoop.hdfs.server.namenode.INodeDirectory.getParent方法的典型用法代码示例。如果您正苦于以下问题：Java INodeDirectory.getParent方法的具体用法？Java INodeDirectory.getParent怎么用？Java INodeDirectory.getParent使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.hdfs.server.namenode.INodeDirectory的用法示例。
在下文中一共展示了INodeDirectory.getParent方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: getSnapshottableDirListing
import org.apache.hadoop.hdfs.server.namenode.INodeDirectory; //导入方法依赖的package包/类
/**
* 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 ? DFSUtil.EMPTY_BYTES :
DFSUtil.string2Bytes(dir.getParent().getFullPathName()));
statusList.add(status);
}
}
Collections.sort(statusList, SnapshottableDirectoryStatus.COMPARATOR);
return statusList.toArray(
new SnapshottableDirectoryStatus[statusList.size()]);
}
示例2: removeSnapshot
import org.apache.hadoop.hdfs.server.namenode.INodeDirectory; //导入方法依赖的package包/类
/**
* Remove the snapshot with the given name from {@link #snapshotsByNames},
* and delete all the corresponding DirectoryDiff.
*
* @param snapshotRoot The directory where we take snapshots
* @param snapshotName The name of the snapshot to be removed
* @param collectedBlocks Used to collect information to update blocksMap
* @return The removed snapshot. Null if no snapshot with the given name
* exists.
*/
public Snapshot removeSnapshot(BlockStoragePolicySuite bsps, INodeDirectory snapshotRoot,
String snapshotName, BlocksMapUpdateInfo collectedBlocks,
final List<INode> removedINodes) throws SnapshotException {
final int i = searchSnapshot(DFSUtil.string2Bytes(snapshotName));
if (i < 0) {
throw new SnapshotException("Cannot delete snapshot " + snapshotName
+ " from path " + snapshotRoot.getFullPathName()
+ ": the snapshot does not exist.");
} else {
final Snapshot snapshot = snapshotsByNames.get(i);
int prior = Snapshot.findLatestSnapshot(snapshotRoot, snapshot.getId());
try {
QuotaCounts counts = snapshotRoot.cleanSubtree(bsps, snapshot.getId(),
prior, collectedBlocks, removedINodes);
INodeDirectory parent = snapshotRoot.getParent();
if (parent != null) {
// there will not be any WithName node corresponding to the deleted
// snapshot, thus only update the quota usage in the current tree
parent.addSpaceConsumed(counts.negation(), true);
}
} catch(QuotaExceededException e) {
INode.LOG.error("BUG: removeSnapshot increases namespace usage.", e);
}
// remove from snapshotsByNames after successfully cleaning the subtree
snapshotsByNames.remove(i);
return snapshot;
}
}
示例3: getSnapshottableDirListing
import org.apache.hadoop.hdfs.server.namenode.INodeDirectory; //导入方法依赖的package包/类
/**
* 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()]);
}