本文整理汇总了Java中org.apache.hadoop.hdfs.server.namenode.INodeDirectory.isWithSnapshot方法的典型用法代码示例。如果您正苦于以下问题：Java INodeDirectory.isWithSnapshot方法的具体用法？Java INodeDirectory.isWithSnapshot怎么用？Java INodeDirectory.isWithSnapshot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.isWithSnapshot方法的2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: findLatestSnapshot
import org.apache.hadoop.hdfs.server.namenode.INodeDirectory; //导入方法依赖的package包/类
/**
* Find the latest snapshot that 1) covers the given inode (which means the
* snapshot was either taken on the inode or taken on an ancestor of the
* inode), and 2) was taken before the given snapshot (if the given snapshot
* is not null).
*
* @param inode the given inode that the returned snapshot needs to cover
* @param anchor the returned snapshot should be taken before this given id.
* @return id of the latest snapshot that covers the given inode and was taken
* before the the given snapshot (if it is not null).
*/
public static int findLatestSnapshot(INode inode, final int anchor) {
int latest = NO_SNAPSHOT_ID;
for(; inode != null; inode = inode.getParent()) {
if (inode.isDirectory()) {
final INodeDirectory dir = inode.asDirectory();
if (dir.isWithSnapshot()) {
latest = dir.getDiffs().updatePrior(anchor, latest);
}
}
}
return latest;
}
示例2: loadDirectoryDiffList
import org.apache.hadoop.hdfs.server.namenode.INodeDirectory; //导入方法依赖的package包/类
/**
* Load the {@link SnapshotDiff} list for the INodeDirectoryWithSnapshot
* directory.
*
* @param dir
* The snapshottable directory for loading.
* @param in
* The {@link DataInput} instance to read.
* @param loader
* The loader
*/
public static void loadDirectoryDiffList(INodeDirectory dir,
DataInput in, FSImageFormat.Loader loader) throws IOException {
final int size = in.readInt();
if (dir.isWithSnapshot()) {
DirectoryDiffList diffs = dir.getDiffs();
for (int i = 0; i < size; i++) {
diffs.addFirst(loadDirectoryDiff(dir, in, loader));
}
}
}