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Java Root类代码示例

本文整理汇总了Java中org.apache.hadoop.hdfs.server.namenode.snapshot.Snapshot.Root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);
}
 
开发者ID:ict-carch,项目名称:hadoop-plus,代码行数:29,代码来源:FSDirectory.java

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);
}
 
开发者ID:Nextzero,项目名称:hadoop-2.6.0-cdh5.4.3,代码行数:35,代码来源:FSDirectory.java

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);
}
 
开发者ID:Seagate,项目名称:hadoop-on-lustre2,代码行数:30,代码来源:FSDirectory.java


注:本文中的org.apache.hadoop.hdfs.server.namenode.snapshot.Snapshot.Root类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。