Examples of org.apache.hadoop.hdfs.server.namenode.INode.asDirectory()

Package org.apache.hadoop.hdfs.server.namenode

Class org.apache.hadoop.hdfs.server.namenode.INode

Examples of org.apache.hadoop.hdfs.server.namenode.INode.asDirectory()

org.apache.hadoop.hdfs.server.namenode.INode.asDirectory()
Cast this inode to an {@link INodeDirectory}.

    INode dir2Node = fsdir.getINode4Write(dir2.toString());
    assertTrue(dir2Node.getClass() == INodeDirectorySnapshottable.class);
    Quota.Counts counts = dir2Node.computeQuotaUsage();
    assertEquals(3, counts.get(Quota.NAMESPACE));
    assertEquals(0, counts.get(Quota.DISKSPACE));
    childrenList = ReadOnlyList.Util.asList(dir2Node.asDirectory()
        .getChildrenList(Snapshot.CURRENT_STATE_ID));
    assertEquals(1, childrenList.size());
    INode subdir2Node = childrenList.get(0);
    assertSame(dir2Node, subdir2Node.getParent());
    assertSame(subdir2Node, fsdir.getINode4Write(subdir2.toString()));

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        .asDirectory();
    List<INode> childrenList = ReadOnlyList.Util.asList(dir1Node
        .getChildrenList(Snapshot.CURRENT_STATE_ID));
    assertEquals(1, childrenList.size());
    INode fooNode = childrenList.get(0);
    assertTrue(fooNode.asDirectory().isWithSnapshot());
    assertSame(dir1Node, fooNode.getParent());
    List<DirectoryDiff> diffList = ((INodeDirectorySnapshottable) dir1Node)
        .getDiffs().asList();
    assertEquals(1, diffList.size());
    DirectoryDiff diff = diffList.get(0);

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    INode dir2Node = fsdir.getINode4Write(dir2.toString());
    assertTrue(dir2Node.getClass() == INodeDirectorySnapshottable.class);
    Quota.Counts counts = dir2Node.computeQuotaUsage();
    assertEquals(4, counts.get(Quota.NAMESPACE));
    assertEquals(0, counts.get(Quota.DISKSPACE));
    childrenList = ReadOnlyList.Util.asList(dir2Node.asDirectory()
        .getChildrenList(Snapshot.CURRENT_STATE_ID));
    assertEquals(1, childrenList.size());
    INode subdir2Node = childrenList.get(0);
    assertTrue(subdir2Node.asDirectory().isWithSnapshot());
    assertSame(dir2Node, subdir2Node.getParent());

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    assertEquals(0, counts.get(Quota.DISKSPACE));
    childrenList = ReadOnlyList.Util.asList(dir2Node.asDirectory()
        .getChildrenList(Snapshot.CURRENT_STATE_ID));
    assertEquals(1, childrenList.size());
    INode subdir2Node = childrenList.get(0);
    assertTrue(subdir2Node.asDirectory().isWithSnapshot());
    assertSame(dir2Node, subdir2Node.getParent());
    assertSame(subdir2Node, fsdir.getINode4Write(sub_dir2.toString()));
    INode subsubdir2Node = fsdir.getINode4Write(subsub_dir2.toString());
    assertTrue(subsubdir2Node.getClass() == INodeDirectory.class);
    assertSame(subdir2Node, subsubdir2Node.getParent());

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        .isEmpty());
    
    assertTrue(hdfs.exists(newfoo));
    INode fooRefNode = fsdir.getINode4Write(newfoo.toString());
    assertTrue(fooRefNode instanceof INodeReference.DstReference);
    INodeDirectory fooNode = fooRefNode.asDirectory();
    // fooNode should be still INodeDirectory (With Snapshot) since we call
    // recordModification before the rename
    assertTrue(fooNode.isWithSnapshot());
    assertTrue(fooNode.getDiffs().asList().isEmpty());
    INodeDirectory barNode = fooNode.getChildrenList(Snapshot.CURRENT_STATE_ID)

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    // check foo and its subtree
    final Path newbar = new Path(newfoo, bar.getName());
    INodeDirectory barNode = fsdir.getINode4Write(newbar.toString())
        .asDirectory();
    assertSame(fooNode.asDirectory(), barNode.getParent());
    // bar should only have a snapshot diff for s0
    List<DirectoryDiff> barDiffList = barNode.getDiffs().asList();
    assertEquals(1, barDiffList.size());
    DirectoryDiff diff = barDiffList.get(0);
    INodeDirectorySnapshottable testNode =

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    // check the snapshot copy of subsub, which is contained in the subtree of
    // sub's snapshot copy
    INode snapshotNode4Subsub = snapshotNode4Sub.getChildrenList(
        Snapshot.CURRENT_STATE_ID).get(0);
    assertTrue(snapshotNode4Subsub.asDirectory().isWithSnapshot());
    assertTrue(snapshotNode4Sub == snapshotNode4Subsub.getParent());
    // check the children of subsub
    INodeDirectory snapshotSubsubDir = (INodeDirectory) snapshotNode4Subsub;
    children = snapshotSubsubDir.getChildrenList(Snapshot.CURRENT_STATE_ID);
    assertEquals(2, children.size());

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  static Snapshot read(DataInput in, FSImageFormat.Loader loader)
      throws IOException {
    final int snapshotId = in.readInt();
    final INode root = loader.loadINodeWithLocalName(false, in, false);
    return new Snapshot(snapshotId, root.asDirectory(), null);
  }


  /** The root directory of the snapshot. */
  static public class Root extends INodeDirectory {
    Root(INodeDirectory other) {

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        switch (type) {
        case FILEDIFF:
          loadFileDiffList(in, inode.asFile(), entry.getNumOfDiff());
          break;
        case DIRECTORYDIFF:
          loadDirectoryDiffList(in, inode.asDirectory(), entry.getNumOfDiff(),
              refList);
          break;
        }
      }
    }

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      } else if (topNode.isFile() && topNode.asFile().isWithSnapshot()) {
        INodeFile file = topNode.asFile();
        counts.add(file.getDiffs().deleteSnapshotDiff(post, prior, file,
            collectedBlocks, removedINodes, countDiffChange));
      } else if (topNode.isDirectory()) {
        INodeDirectory dir = topNode.asDirectory();
        ChildrenDiff priorChildrenDiff = null;
        DirectoryWithSnapshotFeature sf = dir.getDirectoryWithSnapshotFeature();
        if (sf != null) {
          // delete files/dirs created after prior. Note that these
          // files/dirs, along with inode, were deleted right after post.

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