org.apache.flink.runtime.fs.hdfs

Class HadoopFsFactory

java.lang.Object

org.apache.flink.runtime.fs.hdfs.HadoopFsFactory

All Implemented Interfaces:

FileSystemFactory

public class HadoopFsFactory
extends Object
implements FileSystemFactory

A file system factory for Hadoop-based file systems.

This factory calls Hadoop's mechanism to find a file system implementation for a given file system scheme (a FileSystem) and wraps it as a Flink file system (a FileSystem).

Constructor Summary

Constructors

Constructor and Description
HadoopFsFactory()

Method Summary

Modifier and Type	Method and Description
void	configure(Configuration config) Applies the given configuration to this factory.
FileSystem	create(URI fsUri) Creates a new file system for the given file system URI.
String	getScheme() Gets the scheme of the file system created by this factory.

Methods inherited from class java.lang.Object

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

Constructor Detail

HadoopFsFactory

public HadoopFsFactory()

Method Detail

getScheme

public String getScheme()

Description copied from interface: FileSystemFactory

Gets the scheme of the file system created by this factory.

Specified by:

getScheme in interface FileSystemFactory

configure

public void configure(Configuration config)

Description copied from interface: FileSystemFactory

Applies the given configuration to this factory. All future file system instantiations via FileSystemFactory.create(URI) should take the configuration into account.

Specified by:

configure in interface FileSystemFactory

Parameters:

config - The configuration to apply.

create

public FileSystem create(URI fsUri)
                  throws IOException

Description copied from interface: FileSystemFactory

Creates a new file system for the given file system URI. The URI describes the type of file system (via its scheme) and optionally the authority (for example the host) of the file system.

Specified by:

create in interface FileSystemFactory

Parameters:

fsUri - The URI that describes the file system.

Returns:

A new instance of the specified file system.

Throws:

IOException - Thrown if the file system could not be instantiated.