本文整理汇总了Java中org.apache.hadoop.hdfs.server.namenode.snapshot.Snapshot.Root类的典型用法代码示例。如果您正苦于以下问题：Java Root类的具体用法？Java Root怎么用？Java Root使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
Root类属于org.apache.hadoop.hdfs.server.namenode.snapshot.Snapshot包，在下文中一共展示了Root类的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: getSnapshotsListing
import org.apache.hadoop.hdfs.server.namenode.snapshot.Snapshot.Root; //导入依赖的package包/类
/**
* Get a listing of all the snapshots of a snapshottable directory
*/
private DirectoryListing getSnapshotsListing(String src, byte[] startAfter)
throws UnresolvedLinkException, IOException {
Preconditions.checkState(hasReadLock());
Preconditions.checkArgument(
src.endsWith(HdfsConstants.SEPARATOR_DOT_SNAPSHOT_DIR),
"%s does not end with %s", src, HdfsConstants.SEPARATOR_DOT_SNAPSHOT_DIR);
final String dirPath = normalizePath(src.substring(0,
src.length() - HdfsConstants.DOT_SNAPSHOT_DIR.length()));
final INode node = this.getINode(dirPath);
final INodeDirectorySnapshottable dirNode = INodeDirectorySnapshottable
.valueOf(node, dirPath);
final ReadOnlyList<Snapshot> snapshots = dirNode.getSnapshotList();
int skipSize = ReadOnlyList.Util.binarySearch(snapshots, startAfter);
skipSize = skipSize < 0 ? -skipSize - 1 : skipSize + 1;
int numOfListing = Math.min(snapshots.size() - skipSize, this.lsLimit);
final HdfsFileStatus listing[] = new HdfsFileStatus[numOfListing];
for (int i = 0; i < numOfListing; i++) {
Root sRoot = snapshots.get(i + skipSize).getRoot();
listing[i] = createFileStatus(sRoot.getLocalNameBytes(), sRoot, null);
}
return new DirectoryListing(
listing, snapshots.size() - skipSize - numOfListing);
}
示例2: getSnapshotsListing
import org.apache.hadoop.hdfs.server.namenode.snapshot.Snapshot.Root; //导入依赖的package包/类
/**
* Get a listing of all the snapshots of a snapshottable directory
*/
private DirectoryListing getSnapshotsListing(String src, byte[] startAfter)
throws UnresolvedLinkException, IOException {
Preconditions.checkState(hasReadLock());
Preconditions.checkArgument(
src.endsWith(HdfsConstants.SEPARATOR_DOT_SNAPSHOT_DIR),
"%s does not end with %s", src, HdfsConstants.SEPARATOR_DOT_SNAPSHOT_DIR);
final String dirPath = normalizePath(src.substring(0,
src.length() - HdfsConstants.DOT_SNAPSHOT_DIR.length()));
final INode node = this.getINode(dirPath);
final INodeDirectory dirNode = INodeDirectory.valueOf(node, dirPath);
final DirectorySnapshottableFeature sf = dirNode.getDirectorySnapshottableFeature();
if (sf == null) {
throw new SnapshotException(
"Directory is not a snapshottable directory: " + dirPath);
}
final ReadOnlyList<Snapshot> snapshots = sf.getSnapshotList();
int skipSize = ReadOnlyList.Util.binarySearch(snapshots, startAfter);
skipSize = skipSize < 0 ? -skipSize - 1 : skipSize + 1;
int numOfListing = Math.min(snapshots.size() - skipSize, this.lsLimit);
final HdfsFileStatus listing[] = new HdfsFileStatus[numOfListing];
for (int i = 0; i < numOfListing; i++) {
Root sRoot = snapshots.get(i + skipSize).getRoot();
listing[i] = createFileStatus(sRoot.getLocalNameBytes(), sRoot,
BlockStoragePolicySuite.ID_UNSPECIFIED, Snapshot.CURRENT_STATE_ID,
false, null);
}
return new DirectoryListing(
listing, snapshots.size() - skipSize - numOfListing);
}
示例3: getSnapshotsListing
import org.apache.hadoop.hdfs.server.namenode.snapshot.Snapshot.Root; //导入依赖的package包/类
/**
* Get a listing of all the snapshots of a snapshottable directory
*/
private DirectoryListing getSnapshotsListing(String src, byte[] startAfter)
throws UnresolvedLinkException, IOException {
Preconditions.checkState(hasReadLock());
Preconditions.checkArgument(
src.endsWith(HdfsConstants.SEPARATOR_DOT_SNAPSHOT_DIR),
"%s does not end with %s", src, HdfsConstants.SEPARATOR_DOT_SNAPSHOT_DIR);
final String dirPath = normalizePath(src.substring(0,
src.length() - HdfsConstants.DOT_SNAPSHOT_DIR.length()));
final INode node = this.getINode(dirPath);
final INodeDirectorySnapshottable dirNode = INodeDirectorySnapshottable
.valueOf(node, dirPath);
final ReadOnlyList<Snapshot> snapshots = dirNode.getSnapshotList();
int skipSize = ReadOnlyList.Util.binarySearch(snapshots, startAfter);
skipSize = skipSize < 0 ? -skipSize - 1 : skipSize + 1;
int numOfListing = Math.min(snapshots.size() - skipSize, this.lsLimit);
final HdfsFileStatus listing[] = new HdfsFileStatus[numOfListing];
for (int i = 0; i < numOfListing; i++) {
Root sRoot = snapshots.get(i + skipSize).getRoot();
listing[i] = createFileStatus(sRoot.getLocalNameBytes(), sRoot,
Snapshot.CURRENT_STATE_ID);
}
return new DirectoryListing(
listing, snapshots.size() - skipSize - numOfListing);
}