FTPFile (Apache Commons Net 3.4 API)

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:
    `FTPFileEntryParser`, `FTPClient.listFiles(java.lang.String)`, Serialized Form

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static int` | `DIRECTORY_TYPE` A constant indicating an FTPFile is a directory.
    `static int` | `EXECUTE_PERMISSION` A constant indicating file execute permission or directory listing permission.
    `static int` | `FILE_TYPE` A constant indicating an FTPFile is a file.
    `static int` | `GROUP_ACCESS` A constant indicating group access permissions.
    `static int` | `READ_PERMISSION` A constant indicating file/directory read permission.
    `static int` | `SYMBOLIC_LINK_TYPE` A constant indicating an FTPFile is a symbolic link.
    `static int` | `UNKNOWN_TYPE` A constant indicating an FTPFile is of unknown type.
    `static int` | `USER_ACCESS` A constant indicating user access permissions.
    `static int` | `WORLD_ACCESS` A constant indicating world access permissions.
    `static int` | `WRITE_PERMISSION` A constant indicating file/directory write permission.

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `FTPFile()` Creates an empty FTPFile.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `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.
    `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 Detail

    - #### FILE_TYPE

          public static final int FILE_TYPE

      A constant indicating an FTPFile is a file.
      See Also:
        Constant Field Values

    - #### DIRECTORY_TYPE

          public static final int DIRECTORY_TYPE

      A constant indicating an FTPFile is a directory.
      See Also:
        Constant Field Values

    - #### SYMBOLIC_LINK_TYPE

          public static final int SYMBOLIC_LINK_TYPE

      A constant indicating an FTPFile is a symbolic link.
      See Also:
        Constant Field Values

    - #### UNKNOWN_TYPE

          public static final int UNKNOWN_TYPE

      A constant indicating an FTPFile is of unknown type.
      See Also:
        Constant Field Values

    - #### USER_ACCESS

          public static final int USER_ACCESS

      A constant indicating user access permissions.
      See Also:
        Constant Field Values

    - #### GROUP_ACCESS

          public static final int GROUP_ACCESS

      A constant indicating group access permissions.
      See Also:
        Constant Field Values

    - #### WORLD_ACCESS

          public static final int WORLD_ACCESS

      A constant indicating world access permissions.
      See Also:
        Constant Field Values

    - #### READ_PERMISSION

          public static final int READ_PERMISSION

      A constant indicating file/directory read permission.
      See Also:
        Constant Field Values

    - #### WRITE_PERMISSION

          public static final int WRITE_PERMISSION

      A constant indicating file/directory write permission.
      See Also:
        Constant Field Values

    - #### EXECUTE_PERMISSION

          public static final int EXECUTE_PERMISSION

      A constant indicating file execute permission or directory listing permission.
      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### FTPFile

          public FTPFile()

      Creates an empty FTPFile.

  - ### Method Detail

    - #### 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:
        `FTPClientConfig.setUnparseableEntries(boolean)`

    - #### 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

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