Package org.apache.hadoop.fs.http.server

Class FSOperations.FSGetSnapshotListing

java.lang.Object

org.apache.hadoop.fs.http.server.FSOperations.FSGetSnapshotListing

All Implemented Interfaces:

FileSystemAccess.FileSystemExecutor<String>

Enclosing class:

FSOperations

@Private
public static class FSOperations.FSGetSnapshotListing
extends Object
implements FileSystemAccess.FileSystemExecutor<String>

Executor that performs a getSnapshotListing operation.

Constructor Summary

Constructors

Constructor	Description
FSGetSnapshotListing(String path)	Creates a getSnapshotDiff executor.

Method Summary

Modifier and Type	Method	Description
String	execute(org.apache.hadoop.fs.FileSystem fs)	Executes the filesystem operation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

FSGetSnapshotListing

public FSGetSnapshotListing(String path)

Creates a getSnapshotDiff executor.

Parameters:

path - directory path of the snapshots to be examined.

Method Details

execute

public String execute(org.apache.hadoop.fs.FileSystem fs)
               throws IOException

Executes the filesystem operation.

Specified by:

execute in interface FileSystemAccess.FileSystemExecutor<String>

Parameters:

fs - filesystem instance to use.

Returns:

A JSON string of all snapshots for a snapshottable directory.

Throws:

IOException - thrown if an IO error occurred.