org.apache.hadoop.fs

Class LocatedFileStatus

java.lang.Object

org.apache.hadoop.fs.FileStatus

org.apache.hadoop.fs.LocatedFileStatus

All Implemented Interfaces:

Comparable, Writable

@InterfaceAudience.Public
@InterfaceStability.Evolving
public class LocatedFileStatus
extends FileStatus

This class defines a FileStatus that includes a file's block locations.

Constructor Summary

Constructors

Constructor and Description
LocatedFileStatus()
LocatedFileStatus(FileStatus stat, BlockLocation[] locations) Constructor
LocatedFileStatus(long length, boolean isdir, int block_replication, long blocksize, long modification_time, long access_time, FsPermission permission, String owner, String group, Path symlink, Path path, BlockLocation[] locations) Constructor

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTo(Object o) Compare this object to another object
boolean	equals(Object o) Compare if this object is equal to another object
BlockLocation[]	getBlockLocations() Get the file's block locations
int	hashCode() Returns a hash code value for the object, which is defined as the hash code of the path name.

Methods inherited from class org.apache.hadoop.fs.FileStatus

getAccessTime, getBlockSize, getGroup, getLen, getModificationTime, getOwner, getPath, getPermission, getReplication, getSymlink, isDir, isDirectory, isEncrypted, isFile, isSymlink, readFields, setGroup, setOwner, setPath, setPermission, setSymlink, toString, write

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

LocatedFileStatus

public LocatedFileStatus()

LocatedFileStatus

public LocatedFileStatus(FileStatus stat,
                 BlockLocation[] locations)
                  throws IOException

Constructor

Parameters:

stat - a file status

locations - a file's block locations

Throws:

IOException

LocatedFileStatus

public LocatedFileStatus(long length,
                 boolean isdir,
                 int block_replication,
                 long blocksize,
                 long modification_time,
                 long access_time,
                 FsPermission permission,
                 String owner,
                 String group,
                 Path symlink,
                 Path path,
                 BlockLocation[] locations)

Constructor

Parameters:

length - a file's length

isdir - if the path is a directory

block_replication - the file's replication factor

blocksize - a file's block size

modification_time - a file's modification time

access_time - a file's access time

permission - a file's permission

owner - a file's owner

group - a file's group

symlink - symlink if the path is a symbolic link

path - the path's qualified name

locations - a file's block locations

Method Detail

getBlockLocations

public BlockLocation[] getBlockLocations()

Get the file's block locations

Returns:

the file's block locations

compareTo

public int compareTo(Object o)

Compare this object to another object

Specified by:

compareTo in interface Comparable

Overrides:

compareTo in class FileStatus

Parameters:

o - the object to be compared.

Returns:

a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

Throws:

ClassCastException - if the specified object's is not of type FileStatus

equals

public boolean equals(Object o)

Compare if this object is equal to another object

Overrides:

equals in class FileStatus

Parameters:

o - the object to be compared.

Returns:

true if two file status has the same path name; false if not.

hashCode

public int hashCode()

Returns a hash code value for the object, which is defined as the hash code of the path name.

Overrides:

hashCode in class FileStatus

Returns:

a hash code value for the path name.