Overview (NetBeans File Systems API) - NetBeans API Javadoc 5.0.0

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NetBeans File Systems API

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Description

File Systems API

org.openide.filesystems The IDE internally uses the concept of a virtual filesystem.

What is New (see all changes)?

Oct 25 '05 The way how IllegalArgumentException is thrown from FileUtil.toFileObject was changed

Because of performance reason piece of code checking whether file was properly normalized is called conditionally just in case that assertions are enabled. Then IllegalArgumentException can't be thrown if assertions are disabled.

Jul 21 '05 Removed most static MIME type mappings

Previously, a number of file extensions were given hardcoded MIME types in the Filesystems API library (unless overridden by MIMEResolvers or FileSystem implementations). Most of these static mappings have been removed. The affected mappings were:

Extension	MIME type
`au`	`audio/basic`
`class`	`application/octet-stream`
`css`	`text/css`
`dtd`	`text/x-dtd`
`exe`	`application/octet-stream`
`htm`	`text/html`
`html`	`text/html`
`jar`	`application/x-jar`
`java`	`text/x-java`
`jsp`	`text/plain`
`mov`	`video/quicktime`
`pl`	`text/plain`
`properties`	`text/plain`
`ps`	`application/postscript`
`ra`	`audio/x-pn-realaudio`
`ram`	`audio/x-pn-realaudio`
`rm`	`audio/x-pn-realaudio`
`rpm`	`audio/x-pn-realaudio`
`sh`	`application/x-shar`
`snd`	`audio/basic`
`tar`	`application/x-tar`
`text`	`text/plain`
`txt`	`text/plain`
`uu`	`application/octet-stream`
`wav`	`audio/x-wav`
`xsd`	`text/xml`
`xsl`	`text/xml`
`zip`	`application/zip`

The mapping from *.xml to text/xml is retained as this may be central to processing of XML configuration files on the system file system.

Jan 7 '05 FileObject.getFileObject made not final.

Method public final FileObject getFileObject (String relativePath) in class FileObject isn't final anymore to let more freedom for implemetations.
Aug 4 '04 Added new method FileUtil.createMemoryFileSystem ()

There is a new factory method FileUtil.createMemoryFileSystem () to create an empty, writeable instance of a FileSystem with content completely stored in memory. This filesystem is the one that is by default returned from Repository.getDefaultFileSystem() so since now the standalone applications may expect the default file system to be writable.
Jul 30 '04 Added FileUtil.preventFileChooserSymlinkTraversal(...)
Added a new method FileUtil.preventFileChooserSymlinkTraversal(...) to help work around problems with symbolic links and JFileChooser.

Use Cases

Exported Interfaces

This table lists all of the module exported APIs with defined stability classifications. It is generated based on answers to questions about the architecture of the module. Read them all...

Group of java interfaces

Interface Name	In/Out	Stability	Specified in What Document?
FilesystemsAPI	Exported	Official	.../openide/filesystems/doc-files/api.html

Group of property interfaces

Interface Name	In/Out	Stability	Specified in What Document?
org.openide.filesystems.DefaultAttributes.ATTR_NAME_EXT_XML	Exported	Private	Name of attribute file can be changed , if .nbattrs can't be used.
org.openide.filesystems.LocalFileSystem.REFRESH_TIME	Exported	Private	Periodic refresh can be set.
org.openide.filesystems.annotateUnclosedStreams	Exported	Private	If `true`, better diagnostic information will be available as to when file input or output streams were opened that prevent a file from being deleted because they were not closed. This information comes at a performance cost, however.