org.apache.hadoop.fs.http.server

Class FSOperations.FSFileChecksum

java.lang.Object

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

All Implemented Interfaces:

FileSystemAccess.FileSystemExecutor<Map>

Enclosing class:

FSOperations

@InterfaceAudience.Private
public static class FSOperations.FSFileChecksum
extends Object
implements FileSystemAccess.FileSystemExecutor<Map>

Executor that performs a file-checksum FileSystemAccess files system operation.

Constructor Summary

Constructors

Constructor and Description
FSOperations.FSFileChecksum(String path) Creates a file-checksum executor.

Method Summary

Methods

Modifier and Type	Method and Description
Map	execute(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 Detail

FSOperations.FSFileChecksum

public FSOperations.FSFileChecksum(String path)

Creates a file-checksum executor.

Parameters:

path - the path to retrieve the checksum.

Method Detail

execute

public Map execute(FileSystem fs)
            throws IOException

Executes the filesystem operation.

Specified by:

execute in interface FileSystemAccess.FileSystemExecutor<Map>

Parameters:

fs - filesystem instance to use.

Returns:

a Map object (JSON friendly) with the file checksum.

Throws:

IOException - thrown if an IO error occured.