Package xal.tools.apputils.files

Class FileFilterFactory

java.lang.Object

xal.tools.apputils.files.FileFilterFactory

public class FileFilterFactory
extends Object

FileFilterFactory generates file filters based on supplied file types.

Author:

tap

Field Summary

Fields

Modifier and Type	Field	Description
static final String	WILDCARD_FILE_EXTENSION	wildcard extension

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	FileFilterFactory()	Creates a new instance of FileFilterFactory

Method Summary

Modifier and Type	Method	Description
static JFileChooser	applyFileFilters(JFileChooser fileChooser, String[] fileTypes)	Applies the file filters to the file chooser and returns this file chooser.
static JFileChooser	applyFileFilters(JFileChooser fileChooser, String[] fileTypes, String[] fileDescriptions)	Applies the file filters to the file chooser and returns this file chooser.
protected static String	getFileExtension(File file)	Determine the file's extension.
static FileFilter	getFileFilter(String fileType, String description)	Create a file filter that accepts files of the specified type.
static FileFilter	getSupportedFileFilter(String[] fileTypes)	Create a file filter that accepts files of the specified types.
protected static boolean	isMatch(String extension, String fileType)	Determine whether the extension matches the file type.

Methods inherited from class java.lang.Object

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

Field Details

WILDCARD_FILE_EXTENSION

public static final String WILDCARD_FILE_EXTENSION

wildcard extension

See Also:

• Constant Field Values

Constructor Details

FileFilterFactory

protected FileFilterFactory()

Creates a new instance of FileFilterFactory

Method Details

applyFileFilters

public static JFileChooser applyFileFilters(JFileChooser fileChooser,
 String[] fileTypes,
 String[] fileDescriptions)

Applies the file filters to the file chooser and returns this file chooser. Existing file filters are removed from the file chooser and then new file filters are added to the file chooser consistent with the specified file types and descriptions.

Parameters:

fileChooser - the file chooser to which to add the file filters

fileTypes - An array of file types to accept

fileDescriptions - An array of corresponding file type descriptions

Returns:

The file chooser that accepts the specified file types (same file chooser as the argument)

applyFileFilters

public static JFileChooser applyFileFilters(JFileChooser fileChooser,
 String[] fileTypes)

Applies the file filters to the file chooser and returns this file chooser. Existing file filters are removed from the file chooser and then new file filters are added to the file chooser consistent with the specified file types.

Parameters:

fileChooser - the file chooser to which to add the file filters

fileTypes - An array of file types to accept

Returns:

The file chooser that accepts the specified file types (same file chooser as the argument)

getFileFilter

public static FileFilter getFileFilter(String fileType,
 String description)

Create a file filter that accepts files of the specified type. This is a supporting method for creating file choosers. A type is identified by its filename suffix.

Parameters:

fileType - File type to accept

description - the description of this file type

Returns:

The file filter that accepts the specified file type

getSupportedFileFilter

public static FileFilter getSupportedFileFilter(String[] fileTypes)

Create a file filter that accepts files of the specified types. This is a supporting method for creating file choosers. A type is identified by its filename suffix.

Parameters:

fileTypes - Array of file types to accept

Returns:

The file filter that accepts the specified file types

getFileExtension

protected static String getFileExtension(File file)

Determine the file's extension.

Parameters:

file - the file for which to get the extension

Returns:

the file's extension

isMatch

protected static boolean isMatch(String extension,
 String fileType)

Determine whether the extension matches the file type. If the file type is the wildcard extension, then accept all extensions as matching.

Parameters:

extension - the file extension to test for matching to the file type.

fileType - the file type against which to test for matching the file extension.

Returns:

true if the extension matches the file type