本文整理汇总了Java中org.apache.hadoop.fs.FileSystem.renameSnapshot方法的典型用法代码示例。如果您正苦于以下问题：Java FileSystem.renameSnapshot方法的具体用法？Java FileSystem.renameSnapshot怎么用？Java FileSystem.renameSnapshot使用的例子？那么, 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.fs.FileSystem的用法示例。
在下文中一共展示了FileSystem.renameSnapshot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: renameSnapshot
import org.apache.hadoop.fs.FileSystem; //导入方法依赖的package包/类
/**
* 此方法用于重命名文件快照
*
* @param fileSystemInfo
* 文件系统信息
* @param path
* 文件路径
* @param snapshotOldName
* 旧快照名称
* @param snapshotNewName
* 新快照名称
*/
public static void renameSnapshot(FileSystemInfo fileSystemInfo, String path, String snapshotOldName,
String snapshotNewName) {
FileSystem fs = getFileSystem(fileSystemInfo);
Path uri = new Path(path);
try {
pathNotExistCheck(path, fs, uri);
pathNotDirectoryCheck(path, fs, uri);
fs.renameSnapshot(uri, snapshotOldName, snapshotNewName);
} catch (IOException e) {
e.printStackTrace();
} finally {
closeFileSystem(fs);
}
}
示例2: testWebHdfsRenameSnapshot
import org.apache.hadoop.fs.FileSystem; //导入方法依赖的package包/类
/**
* Test snapshot rename through WebHdfs
*/
@Test
public void testWebHdfsRenameSnapshot() throws Exception {
MiniDFSCluster cluster = null;
final Configuration conf = WebHdfsTestUtil.createConf();
try {
cluster = new MiniDFSCluster.Builder(conf).numDataNodes(0).build();
cluster.waitActive();
final DistributedFileSystem dfs = cluster.getFileSystem();
final FileSystem webHdfs = WebHdfsTestUtil.getWebHdfsFileSystem(conf,
WebHdfsFileSystem.SCHEME);
final Path foo = new Path("/foo");
dfs.mkdirs(foo);
dfs.allowSnapshot(foo);
webHdfs.createSnapshot(foo, "s1");
final Path s1path = SnapshotTestHelper.getSnapshotRoot(foo, "s1");
Assert.assertTrue(webHdfs.exists(s1path));
// rename s1 to s2
webHdfs.renameSnapshot(foo, "s1", "s2");
Assert.assertFalse(webHdfs.exists(s1path));
final Path s2path = SnapshotTestHelper.getSnapshotRoot(foo, "s2");
Assert.assertTrue(webHdfs.exists(s2path));
webHdfs.deleteSnapshot(foo, "s2");
Assert.assertFalse(webHdfs.exists(s2path));
} finally {
if (cluster != null) {
cluster.shutdown();
}
}
}