Package org.apache.commons.io

Class FileSystemUtils

java.lang.Object
org.apache.commons.io.FileSystemUtils
@Deprecated public class FileSystemUtils extends Object
Deprecated.
As of 2.6 deprecated without replacement. Use equivalent methods in FileStore instead, Files.getFileStore(Paths.get("/home")).getUsableSpace() or iterate over FileSystems.getDefault().getFileStores()
General File System utilities.

This class provides static utility methods for general file system functions not provided before Java 6's File class.

The current functions provided are:

  • Get the free space on a drive
Since:
1.1

  • Constructor Summary

    Constructors
    Constructor
    Description
    FileSystemUtils()
    Deprecated.
    TODO Make private in 3.0.

  • Method Summary

    Modifier and Type
    Method
    Description
    static long
    freeSpace(String path)
    Deprecated.
    Use freeSpaceKb(String) Deprecated from 1.3, may be removed in 2.0
    static long
    freeSpaceKb()
    Deprecated.
    As of 2.6 deprecated without replacement.
    static long
    freeSpaceKb(long timeout)
    Deprecated.
    As of 2.6 deprecated without replacement.
    static long
    freeSpaceKb(String path)
    Deprecated.
    As of 2.6 deprecated without replacement.
    static long
    freeSpaceKb(String path, long timeout)
    Deprecated.
    As of 2.6 deprecated without replacement.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • FileSystemUtils

      @Deprecated public FileSystemUtils()
      Deprecated.
      TODO Make private in 3.0.
      Instances should NOT be constructed in standard programming.

  • Method Details

    • freeSpace

      @Deprecated public static long freeSpace(String path) throws IOException
      Deprecated.
      Use freeSpaceKb(String) Deprecated from 1.3, may be removed in 2.0
      Gets the number of kibibytes (1024 bytes) available to this Java virtual machine on the given file store.

      Note that some OS's are NOT currently supported, including OS/390, OpenVMS. 

       FileSystemUtils.freeSpace("C:"); // Windows
 FileSystemUtils.freeSpace("/volume"); // *nix
      Parameters:
      path - the path to get free space for, not null, not empty on UNIX
      Returns:
      the amount of free drive space on the drive or volume
      Throws:
      IOException - if an I/O error occurs.
      IllegalArgumentException - if the path is invalid.
      Since:
      1.1, enhanced OS support in 1.2 and 1.3

    • freeSpaceKb

      @Deprecated public static long freeSpaceKb() throws IOException
      Deprecated.
      As of 2.6 deprecated without replacement. Please use FileStore.getUsableSpace().
      Gets the number of kibibytes (1024 bytes) available to this Java virtual machine on the current file store.

      Identical to: 

       freeSpaceKb(FileUtils.current().getAbsolutePath())
      Returns:
      the amount of free drive space on the drive or volume in kilobytes
      Throws:
      IOException - if an I/O error occurs.
      IllegalArgumentException - if the path is invalid.
      Since:
      2.0

    • freeSpaceKb

      @Deprecated public static long freeSpaceKb(long timeout) throws IOException
      Deprecated.
      As of 2.6 deprecated without replacement. Please use FileStore.getUsableSpace().
      Gets the number of kibibytes (1024 bytes) available to this Java virtual machine on the current file store.

      Identical to: 

       freeSpaceKb(FileUtils.current().getAbsolutePath())
      Parameters:
      timeout - ignored.
      Returns:
      the amount of free drive space on the drive or volume in kilobytes
      Throws:
      IOException - if an I/O error occurs.
      IllegalArgumentException - if the path is invalid.
      Since:
      2.0

    • freeSpaceKb

      @Deprecated public static long freeSpaceKb(String path) throws IOException
      Deprecated.
      As of 2.6 deprecated without replacement. Please use FileStore.getUsableSpace().
      Gets the number of kibibytes (1024 bytes) available to this Java virtual machine on the given file store. 
       FileSystemUtils.freeSpaceKb("C:"); // Windows
 FileSystemUtils.freeSpaceKb("/volume"); // *nix
      Parameters:
      path - the path to get free space for, not null, not empty on UNIX
      Returns:
      the amount of free drive space on the drive or volume in kilobytes
      Throws:
      IOException - if an I/O error occurs.
      IllegalArgumentException - if the path is invalid.
      Since:
      1.2, enhanced OS support in 1.3

    • freeSpaceKb

      @Deprecated public static long freeSpaceKb(String path, long timeout) throws IOException
      Deprecated.
      As of 2.6 deprecated without replacement. Please use FileStore.getUsableSpace().
      Gets the number of kibibytes (1024 bytes) available to this Java virtual machine on the given file store. 
       FileSystemUtils.freeSpaceKb("C:"); // Windows
 FileSystemUtils.freeSpaceKb("/volume"); // *nix
      Parameters:
      path - the path to get free space for, not null, not empty on UNIX
      timeout - ignored.
      Returns:
      the amount of free drive space on the drive or volume in kilobytes
      Throws:
      IOException - if an I/O error occurs.
      IllegalArgumentException - if the path is invalid.
      Since:
      2.0