Package org.apache.commons.net.ftp

Class FTPFile

java.lang.Object
org.apache.commons.net.ftp.FTPFile
All Implemented Interfaces:
Serializable
public class FTPFile extends Object implements Serializable
The FTPFile class is used to represent information about files stored on an FTP server.
See Also:

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    private Calendar
    _date
     
    private String
    _group
     
    private int
    _hardLinkCount
     
    private String
    _link
     
    private String
    _name
     
    private final boolean[][]
    _permissions
     
    private String
    _rawListing
     
    private long
    _size
     
    private int
    _type
     
    private String
    _user
     
    static final int
    DIRECTORY_TYPE
    A constant indicating an FTPFile is a directory.
    static final int
    EXECUTE_PERMISSION
    A constant indicating file execute permission or directory listing permission.
    static final int
    FILE_TYPE
    A constant indicating an FTPFile is a file.
    static final int
    GROUP_ACCESS
    A constant indicating group access permissions.
    static final int
    READ_PERMISSION
    A constant indicating file/directory read permission.
    private static final long
    serialVersionUID
     
    static final int
    SYMBOLIC_LINK_TYPE
    A constant indicating an FTPFile is a symbolic link.
    static final int
    UNKNOWN_TYPE
    A constant indicating an FTPFile is of unknown type.
    static final int
    USER_ACCESS
    A constant indicating user access permissions.
    static final int
    WORLD_ACCESS
    A constant indicating world access permissions.
    static final int
    WRITE_PERMISSION
    A constant indicating file/directory write permission.

  • Constructor Summary

    Constructors
    Constructor
    Description
    FTPFile()
    Creates an empty FTPFile.
    FTPFile(String rawListing)
    Constructor for use by FTPListParseEngine only.

  • Method Summary

    Modifier and Type
    Method
    Description
    private char
    formatType()
     
    String
    getGroup()
    Returns the name of the group owning the file.
    int
    getHardLinkCount()
    Return the number of hard links to this file.
    String
    getLink()
    If the FTPFile is a symbolic link, this method returns the name of the file being pointed to by the symbolic link.
    String
    getName()
    Return the name of the file.
    String
    getRawListing()
    Get the original FTP server raw listing used to initialize the FTPFile.
    long
    getSize()
    Return the file size in bytes.
    Calendar
    getTimestamp()
    Returns the file timestamp.
    int
    getType()
    Return the type of the file (one of the _TYPE constants), e.g., if it is a directory, a regular file, or a symbolic link.
    String
    getUser()
    Returns the name of the user owning the file.
    boolean
    hasPermission(int access, int permission)
    Determines if the given access group (one of the _ACCESS constants) has the given access permission (one of the _PERMISSION constants) to the file.
    boolean
    isDirectory()
    Determine if the file is a directory.
    boolean
    isFile()
    Determine if the file is a regular file.
    boolean
    isSymbolicLink()
    Determine if the file is a symbolic link.
    boolean
    isUnknown()
    Determine if the type of the file is unknown.
    boolean
    isValid()
    Used to indicate whether an entry is valid or not.
    private String
    permissionToString(int access)
     
    void
    setGroup(String group)
    Set the name of the group owning the file.
    void
    setHardLinkCount(int links)
    Set the number of hard links to this file.
    void
    setLink(String link)
    If the FTPFile is a symbolic link, use this method to set the name of the file being pointed to by the symbolic link.
    void
    setName(String name)
    Set the name of the file.
    void
    setPermission(int access, int permission, boolean value)
    Set if the given access group (one of the _ACCESS constants) has the given access permission (one of the _PERMISSION constants) to the file.
    void
    setRawListing(String rawListing)
    Set the original FTP server raw listing from which the FTPFile was created.
    void
    setSize(long size)
    Set the file size in bytes.
    void
    setTimestamp(Calendar date)
    Set the file timestamp.
    void
    setType(int type)
    Set the type of the file (DIRECTORY_TYPE, FILE_TYPE, etc.).
    void
    setUser(String user)
    Set the name of the user owning the file.
    String
    toFormattedString()
    Returns a string representation of the FTPFile information.
    String
    toFormattedString(String timezone)
    Returns a string representation of the FTPFile information.
    String
    toString()
    Returns a string representation of the FTPFile information.

    Methods inherited from class java.lang.Object

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

  • Field Details

    • serialVersionUID

      private static final long serialVersionUID
      See Also:

    • FILE_TYPE

      public static final int FILE_TYPE
      A constant indicating an FTPFile is a file.
      See Also:

    • DIRECTORY_TYPE

      public static final int DIRECTORY_TYPE
      A constant indicating an FTPFile is a directory.
      See Also:

    • UNKNOWN_TYPE

      public static final int UNKNOWN_TYPE
      A constant indicating an FTPFile is of unknown type.
      See Also:

    • USER_ACCESS

      public static final int USER_ACCESS
      A constant indicating user access permissions.
      See Also:

    • GROUP_ACCESS

      public static final int GROUP_ACCESS
      A constant indicating group access permissions.
      See Also:

    • WORLD_ACCESS

      public static final int WORLD_ACCESS
      A constant indicating world access permissions.
      See Also:

    • READ_PERMISSION

      public static final int READ_PERMISSION
      A constant indicating file/directory read permission.
      See Also:

    • WRITE_PERMISSION

      public static final int WRITE_PERMISSION
      A constant indicating file/directory write permission.
      See Also:

    • EXECUTE_PERMISSION

      public static final int EXECUTE_PERMISSION
      A constant indicating file execute permission or directory listing permission.
      See Also:

    • _type

      private int _type

    • _hardLinkCount

      private int _hardLinkCount

    • _size

      private long _size

    • _rawListing

      private String _rawListing

    • _user

      private String _user

    • _group

      private String _group

    • _name

      private String _name

    • _link

      private String _link

    • _date

      private Calendar _date

    • _permissions

      private final boolean[][] _permissions

  • Constructor Details

    • FTPFile

      public FTPFile()
      Creates an empty FTPFile.

    • FTPFile

      FTPFile(String rawListing)
      Constructor for use by FTPListParseEngine only. Used to create FTPFile entries for failed parses
      Parameters:
      rawListing - line that could not be parsed.
      Since:
      3.4

  • Method Details

    • setRawListing

      public void setRawListing(String rawListing)
      Set the original FTP server raw listing from which the FTPFile was created.
      Parameters:
      rawListing - The raw FTP server listing.

    • getRawListing

      public String getRawListing()
      Get the original FTP server raw listing used to initialize the FTPFile.
      Returns:
      The original FTP server raw listing used to initialize the FTPFile.

    • isDirectory

      public boolean isDirectory()
      Determine if the file is a directory.
      Returns:
      True if the file is of type DIRECTORY_TYPE, false if not.

    • isFile

      public boolean isFile()
      Determine if the file is a regular file.
      Returns:
      True if the file is of type FILE_TYPE, false if not.

    • isSymbolicLink

      public boolean isSymbolicLink()
      Determine if the file is a symbolic link.
      Returns:
      True if the file is of type UNKNOWN_TYPE, false if not.

    • isUnknown

      public boolean isUnknown()
      Determine if the type of the file is unknown.
      Returns:
      True if the file is of type UNKNOWN_TYPE, false if not.

    • isValid

      public boolean isValid()
      Used to indicate whether an entry is valid or not. If the entry is invalid, only the getRawListing() method will be useful. Other methods may fail. Used in conjunction with list parsing that preseverves entries that failed to parse.
      Returns:
      true if the entry is valid
      Since:
      3.4
      See Also:

    • setType

      public void setType(int type)
      Set the type of the file (DIRECTORY_TYPE, FILE_TYPE, etc.).
      Parameters:
      type - The integer code representing the type of the file.

    • getType

      public int getType()
      Return the type of the file (one of the _TYPE constants), e.g., if it is a directory, a regular file, or a symbolic link.
      Returns:
      The type of the file.

    • setName

      public void setName(String name)
      Set the name of the file.
      Parameters:
      name - The name of the file.

    • getName

      public String getName()
      Return the name of the file.
      Returns:
      The name of the file.

    • setSize

      public void setSize(long size)
      Set the file size in bytes.
      Parameters:
      size - The file size in bytes.

    • getSize

      public long getSize()
      Return the file size in bytes.
      Returns:
      The file size in bytes.

    • setHardLinkCount

      public void setHardLinkCount(int links)
      Set the number of hard links to this file. This is not to be confused with symbolic links.
      Parameters:
      links - The number of hard links to this file.

    • getHardLinkCount

      public int getHardLinkCount()
      Return the number of hard links to this file. This is not to be confused with symbolic links.
      Returns:
      The number of hard links to this file.

    • setGroup

      public void setGroup(String group)
      Set the name of the group owning the file. This may be a string representation of the group number.
      Parameters:
      group - The name of the group owning the file.

    • getGroup

      public String getGroup()
      Returns the name of the group owning the file. Sometimes this will be a string representation of the group number.
      Returns:
      The name of the group owning the file.

    • setUser

      public void setUser(String user)
      Set the name of the user owning the file. This may be a string representation of the user number;
      Parameters:
      user - The name of the user owning the file.

    • getUser

      public String getUser()
      Returns the name of the user owning the file. Sometimes this will be a string representation of the user number.
      Returns:
      The name of the user owning the file.

    • setLink

      public void setLink(String link)
      If the FTPFile is a symbolic link, use this method to set the name of the file being pointed to by the symbolic link.
      Parameters:
      link - The file pointed to by the symbolic link.

    • getLink

      public String getLink()
      If the FTPFile is a symbolic link, this method returns the name of the file being pointed to by the symbolic link. Otherwise it returns null.
      Returns:
      The file pointed to by the symbolic link (null if the FTPFile is not a symbolic link).

    • setTimestamp

      public void setTimestamp(Calendar date)
      Set the file timestamp. This usually the last modification time. The parameter is not cloned, so do not alter its value after calling this method.
      Parameters:
      date - A Calendar instance representing the file timestamp.

    • getTimestamp

      public Calendar getTimestamp()
      Returns the file timestamp. This usually the last modification time.
      Returns:
      A Calendar instance representing the file timestamp.

    • setPermission

      public void setPermission(int access, int permission, boolean value)
      Set if the given access group (one of the _ACCESS constants) has the given access permission (one of the _PERMISSION constants) to the file.
      Parameters:
      access - The access group (one of the _ACCESS constants)
      permission - The access permission (one of the _PERMISSION constants)
      value - True if permission is allowed, false if not.
      Throws:
      ArrayIndexOutOfBoundsException - if either of the parameters is out of range

    • hasPermission

      public boolean hasPermission(int access, int permission)
      Determines if the given access group (one of the _ACCESS constants) has the given access permission (one of the _PERMISSION constants) to the file.
      Parameters:
      access - The access group (one of the _ACCESS constants)
      permission - The access permission (one of the _PERMISSION constants)
      Returns:
      true if isValid() is true && the associated permission is set; false otherwise.
      Throws:
      ArrayIndexOutOfBoundsException - if either of the parameters is out of range

    • toString

      public String toString()
      Returns a string representation of the FTPFile information.
      Overrides:
      toString in class Object
      Returns:
      A string representation of the FTPFile information.

    • toFormattedString

      public String toFormattedString()
      Returns a string representation of the FTPFile information. This currently mimics the Unix listing format. This method uses the timezone of the Calendar entry, which is the server time zone (if one was provided) otherwise it is the local time zone.

      Note: if the instance is not valid isValid(), no useful information can be returned. In this case, use getRawListing() instead.

      Returns:
      A string representation of the FTPFile information.
      Since:
      3.0

    • toFormattedString

      public String toFormattedString(String timezone)
      Returns a string representation of the FTPFile information. This currently mimics the Unix listing format. This method allows the Calendar time zone to be overridden.

      Note: if the instance is not valid isValid(), no useful information can be returned. In this case, use getRawListing() instead.

      Parameters:
      timezone - the timezone to use for displaying the time stamp If null, then use the Calendar entry timezone
      Returns:
      A string representation of the FTPFile information.
      Since:
      3.4

    • formatType

      private char formatType()

    • permissionToString

      private String permissionToString(int access)