org.apache.hadoop.fs.http.server

Class FSOperations.FSListStatus

java.lang.Object

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

All Implemented Interfaces:

PathFilter, FileSystemAccess.FileSystemExecutor<Map>

Enclosing class:

FSOperations

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

Executor that performs a list-status FileSystemAccess files system operation.

Constructor Summary

Constructors

Constructor and Description
FSOperations.FSListStatus(String path, String filter) Creates a list-status executor.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	accept(Path path) Tests whether or not the specified abstract pathname should be included in a pathname list.
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.FSListStatus

public FSOperations.FSListStatus(String path,
                         String filter)
                          throws IOException

Creates a list-status executor.

Parameters:

path - the directory to retrieve the status of its contents.

filter - glob filter to use.

Throws:

IOException - thrown if the filter expression is incorrect.

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 with the file status of the directory contents.

Throws:

IOException - thrown if an IO error occured.

accept

public boolean accept(Path path)

Description copied from interface: PathFilter

Tests whether or not the specified abstract pathname should be included in a pathname list.

Specified by:

accept in interface PathFilter

Parameters:

path - The abstract pathname to be tested

Returns:

true if and only if pathname should be included