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

Class FSOperations.FSListStatus

java.lang.Object

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

All Implemented Interfaces:

org.apache.hadoop.fs.PathFilter, FileSystemAccess.FileSystemExecutor<Map>

Enclosing class:

FSOperations

@Private
public static class FSOperations.FSListStatus
extends Object
implements FileSystemAccess.FileSystemExecutor<Map>, org.apache.hadoop.fs.PathFilter

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

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
boolean	accept(org.apache.hadoop.fs.Path path)
Map	execute(org.apache.hadoop.fs.FileSystem fs)	Returns data for a JSON Map containing the information for the set of files in 'path' that match 'filter'.

Methods inherited from class java.lang.Object

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

Constructor Details

FSListStatus

public FSListStatus(String path,
 String filter)
             throws IOException

Creates a list-status executor.

Parameters:

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

filter - glob filter to use.

Throws:

IOException - thrown if the filter expression is incorrect.

Method Details

execute

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

Returns data for a JSON Map containing the information for the set of files in 'path' that match 'filter'.

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 that match the filter

Throws:

IOException - thrown if an IO error occurred.

accept

public boolean accept(org.apache.hadoop.fs.Path path)

Specified by:

accept in interface org.apache.hadoop.fs.PathFilter