```
public class FileOps
extends Object
```

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`FileOps.FileClass`
`(package private) static class`	`FileOps.ImageFileFilter`	FileFilter for image types (helper class for getFile)
`(package private) static class`	`FileOps.ReadableFileFilter`	FileFilter for general files
`(package private) static class`	`FileOps.SVGFileFilter`	FileFilter for svg types (helper class for getFile).
`(package private) static class`	`FileOps.TextFileFilter`	FileFilter for text types (helper class for getFile)

Field Summary

Fields
Modifier and Type	Field	Description
`static Map<String,String>`	`fileTypes`
`static Integer`	`HINT_BASEDIRS`
`static Integer`	`HINT_DIRS`
`static Integer`	`HINT_FILEEXT`
`static List<String>`	`imageExtensions`
`static List<String>`	`svgExtensions`
`static List<String>`	`textExtensions`

Constructor Summary

Constructors
Constructor Description

FileOps()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static String`	`basename(String fn)`	Extract the base of a file name (sans extension).
`static FileOps.FileClass`	`classForFilename(String fn)`	get the file class for the filename (by extension)
`static FileOps.FileClass`	`classForMimetype(String mt)`	returns the file class for a mime-type
`static void`	`emptyDirectory(File dir)`	clean up any broken and unfinished files from the temporary directory.
`static String`	`extname(String fn)`	Extract the extension of a file name.
`static DocuDirent`	`fileForClass(FileOps.FileClass fileClass, File file, FsDirectory[] scaleDirs)`	Factory for DocuDirents based on file class.
`static String`	`filename(String fn)`	Extract the file name of a (digilib) path name.
`static File[]`	`filterFiles(File[] files, FileFilter filter)`	Filters a list of Files through a FileFilter.
`static FileFilter`	`filterForClass(FileOps.FileClass fileClass)`	Factory for FileFilters (image or text).
`static Iterator<String>`	`getImageExtensionIterator()`
`static List<String>`	`getImageExtensions()`
`static Iterator<String>`	`getSVGExtensionIterator()`
`static List<String>`	`getSvgExtensions()`
`static Iterator<String>`	`getTextExtensionIterator()`
`static List<String>`	`getTextExtensions()`
`static boolean`	`isMimeTypeSendable(String mimeType)`	Returns if the mime-type is browser compatible.
`static boolean`	`isValidFilename(String filename)`	Returns if the filename is valid.
`static String`	`mimeForFile(File f)`	get the mime type for a file format (by extension)
`static Map<Integer,Object>`	`newHints(Integer type, Object value)`	Creates a new hints Map with the given first element.
`static String`	`normalName(String pathname)`	Normalize a path name.
`static String`	`parent(String fn)`	Extract the parent directory of a (digilib) path name.
`static String[]`	`pathToArray(String paths)`	convert a string with a list of pathnames into an array of strings using the system's path separator string
`static Predicate<Path>`	`streamFilterForClass(FileOps.FileClass fileClass)`	Factory for DirectoryStream.Filters (image or text).

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - fileTypes
```
public static Map<String,String> fileTypes
```
  - imageExtensions
```
public static List<String> imageExtensions
```
  - textExtensions
```
public static List<String> textExtensions
```
  - svgExtensions
```
public static List<String> svgExtensions
```
  - HINT_BASEDIRS
```
public static final Integer HINT_BASEDIRS
```
  - HINT_FILEEXT
```
public static final Integer HINT_FILEEXT
```
  - HINT_DIRS
```
public static final Integer HINT_DIRS
```
- Constructor Detail
  - FileOps
```
public FileOps()
```
- Method Detail
  - classForMimetype
```
public static FileOps.FileClass classForMimetype(String mt)
```
    returns the file class for a mime-type
    
    Parameters:
    
    mt - the mime type
    
    Returns:
    
    the FileClass
  - mimeForFile
```
public static String mimeForFile(File f)
```
    get the mime type for a file format (by extension)
    
    Parameters:
    
    f - the File
    
    Returns:
    
    the mime type
  - classForFilename
```
public static FileOps.FileClass classForFilename(String fn)
```
    get the file class for the filename (by extension)
    
    Parameters:
    
    fn - the fn
    
    Returns:
    
    the FileClass
  - getImageExtensionIterator
```
public static Iterator<String> getImageExtensionIterator()
```
    Returns:
    
    the Iterator
  - getImageExtensions
```
public static List<String> getImageExtensions()
```
    Returns:
    
    the image extensions
  - getTextExtensionIterator
```
public static Iterator<String> getTextExtensionIterator()
```
    Returns:
    
    the Iterator
  - getTextExtensions
```
public static List<String> getTextExtensions()
```
    Returns:
    
    the extensions
  - getSVGExtensionIterator
```
public static Iterator<String> getSVGExtensionIterator()
```
    Returns:
    
    the extensions
  - getSvgExtensions
```
public static List<String> getSvgExtensions()
```
    Returns:
    
    the extensions
  - pathToArray
```
public static String[] pathToArray(String paths)
```
    convert a string with a list of pathnames into an array of strings using the system's path separator string
    
    Parameters:
    
    paths - the paths string
    
    Returns:
    
    the paths
  - basename
```
public static String basename(String fn)
```
    Extract the base of a file name (sans extension). Returns the filename without the extension. The extension is the part behind the last dot in the filename. If the filename contains no dot the full file name is returned.
    
    Parameters:
    
    fn - the fn
    
    Returns:
    
    the base name
  - extname
```
public static String extname(String fn)
```
    Extract the extension of a file name. Returns the extension of a file name. The extension is the part behind the last dot in the filename. If the filename has no dot the empty string is returned.
    
    Parameters:
    
    fn - the fn
    
    Returns:
    
    the extension
  - parent
```
public static String parent(String fn)
```
    Extract the parent directory of a (digilib) path name. Returns the parent directory of a path name. The parent is the part before the last slash in the path name. If the path name has no slash the empty string is returned.
    
    Parameters:
    
    fn - the fn
    
    Returns:
    
    the parent
  - filename
```
public static String filename(String fn)
```
    Extract the file name of a (digilib) path name. Returns the file name of a path name. The file name is the part after the last slash in the path name. If the path name has no slash the original string is returned.
    
    Parameters:
    
    fn - the fn
    
    Returns:
    
    the file name
  - normalName
```
public static String normalName(String pathname)
```
    Normalize a path name. Removes leading and trailing slashes. Returns null if there is other unwanted stuff in the path name.
    
    Parameters:
    
    pathname - the pathname
    
    Returns:
    
    the pathname
  - isValidFilename
```
public static boolean isValidFilename(String filename)
```
    Returns if the filename is valid. Currently only checks if filename starts with a dot.
    
    Parameters:
    
    filename - the filename
    
    Returns:
    
    is valid
  - filterForClass
```
public static FileFilter filterForClass(FileOps.FileClass fileClass)
```
    Factory for FileFilters (image or text).
    
    Parameters:
    
    fileClass - the FileClass
    
    Returns:
    
    the FileFilter
  - streamFilterForClass
```
public static Predicate<Path> streamFilterForClass(FileOps.FileClass fileClass)
```
    Factory for DirectoryStream.Filters (image or text).
    
    Parameters:
    
    fileClass - the FileClass
    
    Returns:
    
    the FileFilter
  - fileForClass
```
public static DocuDirent fileForClass(FileOps.FileClass fileClass,
                                      File file,
                                      FsDirectory[] scaleDirs)
```
    Factory for DocuDirents based on file class. Returns an ImageSet, TextFile or SVGFile. scaleDirs are only for ImageFilesets.
    
    Parameters:
    
    fileClass - the FileClass
    
    file - the File
    
    scaleDirs - optional additional parameters
    
    Returns:
    
    the DocuDirent
  - filterFiles
```
public static File[] filterFiles(File[] files,
                                 FileFilter filter)
```
    Filters a list of Files through a FileFilter.
    
    Parameters:
    
    files - the Files
    
    filter - the FileFilter
    
    Returns:
    
    the Files
  - newHints
```
public static Map<Integer,Object> newHints(Integer type,
                                                 Object value)
```
    Creates a new hints Map with the given first element.
    
    Parameters:
    
    type - the type
    
    value - the value
    
    Returns:
    
    the Map
  - emptyDirectory
```
public static void emptyDirectory(File dir)
```
    clean up any broken and unfinished files from the temporary directory.
    
    Parameters:
    
    dir - the File
  - isMimeTypeSendable
```
public static boolean isMimeTypeSendable(String mimeType)
```
    Returns if the mime-type is browser compatible.
    
    Parameters:
    
    mimeType -
    
    Returns:

Class FileOps

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

fileTypes

imageExtensions

textExtensions

svgExtensions

HINT_BASEDIRS

HINT_FILEEXT

HINT_DIRS

Constructor Detail

FileOps

Method Detail

classForMimetype

mimeForFile

classForFilename

getImageExtensionIterator

getImageExtensions

getTextExtensionIterator

getTextExtensions

getSVGExtensionIterator

getSvgExtensions

pathToArray

basename

extname

parent

filename

normalName

isValidFilename

filterForClass

streamFilterForClass

fileForClass

filterFiles

newHints

emptyDirectory

isMimeTypeSendable