FileSystem (MockFtpServer 2.7.1 API)

All Known Implementing Classes:

AbstractFakeFileSystem, UnixFakeFileSystem, WindowsFakeFileSystem
```
public interface FileSystem
```
Interface for a file system for managing files and directories.

Version:

$Revision: 288 $ - $Date: 2016-10-13 21:28:23 -0400 (Thu, 13 Oct 2016) $

Author:

Chris Mair

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`add(FileSystemEntry entry)` Add the specified file system entry (file or directory) to this file system
`boolean`	`delete(String path)` Delete the file or directory specified by the path.
`boolean`	`exists(String path)` Return true if there exists a file or directory at the specified path
`String`	`formatDirectoryListing(FileSystemEntry fileSystemEntry)` Return the formatted directory listing entry for the file represented by the specified FileSystemEntry
`FileSystemEntry`	`getEntry(String path)` Returns the FileSystemEntry object representing the file system entry at the specified path, or null if the path does not specify an existing file or directory within this file system.
`String`	`getParent(String path)` Return the parent path of the specified path.
`boolean`	`isAbsolute(String path)` Return true if the specified path designates an absolute file path.
`boolean`	`isDirectory(String path)` Return true if the specified path designates an existing directory, false otherwise
`boolean`	`isFile(String path)` Return true if the specified path designates an existing file, false otherwise
`List`	`listFiles(String path)` Return the List of FileSystemEntry objects for the files in the specified directory path.
`List`	`listNames(String path)` Return the List of filenames in the specified directory path.
`String`	`path(String path1, String path2)` Build a path from the two path components.
`void`	`rename(String fromPath, String toPath)` Rename the file or directory.

- Method Detail
  - add
```
void add(FileSystemEntry entry)
```
    Add the specified file system entry (file or directory) to this file system
    
    Parameters:
    
    entry - - the FileSystemEntry to add
  - listFiles
```
List listFiles(String path)
```
    Return the List of FileSystemEntry objects for the files in the specified directory path. If the path does not refer to a valid directory, then an empty List is returned.
    
    Parameters:
    
    path - - the path of the directory whose contents should be returned
    
    Returns:
    
    the List of FileSystemEntry objects for all files in the specified directory may be empty
  - listNames
```
List listNames(String path)
```
    Return the List of filenames in the specified directory path. The returned filenames do not include a path. If the path does not refer to a valid directory, then an empty List is returned.
    
    Parameters:
    
    path - - the path of the directory whose contents should be returned
    
    Returns:
    
    the List of filenames (not including paths) for all files in the specified directory may be empty
    
    Throws:
    
    AssertionError - - if path is null
  - delete
```
boolean delete(String path)
```
    Delete the file or directory specified by the path. Return true if the file is successfully deleted, false otherwise. If the path refers to a directory, it must be empty. Return false if the path does not refer to a valid file or directory or if it is a non-empty directory.
    
    Parameters:
    
    path - - the path of the file or directory to delete
    
    Returns:
    
    true if the file or directory is successfully deleted
    
    Throws:
    
    AssertionError - - if path is null
  - rename
```
void rename(String fromPath,
            String toPath)
```
    Rename the file or directory. Specify the FROM path and the TO path. Throw an exception if the FROM path or the parent directory of the TO path do not exist; or if the rename fails for another reason.
    
    Parameters:
    
    fromPath - - the source (old) path + filename
    
    toPath - - the target (new) path + filename
    
    Throws:
    
    AssertionError - - if fromPath or toPath is null
    
    FileSystemException - - if the rename fails.
  - formatDirectoryListing
```
String formatDirectoryListing(FileSystemEntry fileSystemEntry)
```
    Return the formatted directory listing entry for the file represented by the specified FileSystemEntry
    
    Parameters:
    
    fileSystemEntry - - the FileSystemEntry representing the file or directory entry to be formatted
    
    Returns:
    
    the the formatted directory listing entry
  - exists
```
boolean exists(String path)
```
    Return true if there exists a file or directory at the specified path
    
    Parameters:
    
    path - - the path
    
    Returns:
    
    true if the file/directory exists
    
    Throws:
    
    AssertionError - - if path is null
  - isDirectory
```
boolean isDirectory(String path)
```
    Return true if the specified path designates an existing directory, false otherwise
    
    Parameters:
    
    path - - the path
    
    Returns:
    
    true if path is a directory, false otherwise
    
    Throws:
    
    AssertionError - - if path is null
  - isFile
```
boolean isFile(String path)
```
    Return true if the specified path designates an existing file, false otherwise
    
    Parameters:
    
    path - - the path
    
    Returns:
    
    true if path is a file, false otherwise
    
    Throws:
    
    AssertionError - - if path is null
  - isAbsolute
```
boolean isAbsolute(String path)
```
    Return true if the specified path designates an absolute file path. What constitutes an absolute path is dependent on the file system implementation.
    
    Parameters:
    
    path - - the path
    
    Returns:
    
    true if path is absolute, false otherwise
    
    Throws:
    
    AssertionError - - if path is null
  - path
```
String path(String path1,
            String path2)
```
    Build a path from the two path components. Concatenate path1 and path2. Insert the file system-dependent separator character in between if necessary (i.e., if both are non-empty and path1 does not already end with a separator character AND path2 does not begin with one).
    
    Parameters:
    
    path1 - - the first path component may be null or empty
    
    path2 - - the second path component may be null or empty
    
    Returns:
    
    the path resulting from concatenating path1 to path2
  - getEntry
```
FileSystemEntry getEntry(String path)
```
    Returns the FileSystemEntry object representing the file system entry at the specified path, or null if the path does not specify an existing file or directory within this file system.
    
    Parameters:
    
    path - - the path of the file or directory within this file system
    
    Returns:
    
    the FileSystemEntry containing the information for the file or directory, or else null
  - getParent
```
String getParent(String path)
```
    Return the parent path of the specified path. If path specifies a filename, then this method returns the path of the directory containing that file. If path specifies a directory, the this method returns its parent directory. If path is empty or does not have a parent component, then return an empty string.
    All path separators in the returned path are converted to the system-dependent separator character.
    
    Parameters:
    
    path - - the path
    
    Returns:
    
    the parent of the specified path, or null if path has no parent
    
    Throws:
    
    AssertionError - - if path is null

Interface FileSystem

Method Summary

Method Detail

add

listFiles

listNames

delete

rename

formatDirectoryListing

exists

isDirectory

isFile

isAbsolute

path

getEntry

getParent