Fantastic, thanks a lot Mario. > -----Original Message----- > From: Mario Ivankovits [mailto:[EMAIL PROTECTED] > Sent: Sunday, 23 May 2004 9:51 PM > To: Jakarta Commons Developers List > Subject: Re: [vfs]: FileSystemManage.createFileSystem(FileObject) > > > Paul Smith wrote: > > > <>FileObject FileSystemManage.createFileSystem(FileObject) > > Do I interpret this code that if I had a FileObject that > was a remote Zip > > file, that the returned FileObject would represent a 'directory' of > > the Zip > > contents? > > yes > > > <>Is that the case? <cross-fingers>true</cross-fingers> > > yesyes. > > > <>If this is the case, is there some way through the > > FileObject/FileSystemManager interfaces whether a > particular FileObject is > > able to be translated into a virtual FileObject? Given any arbitary > > FileObject, how can my code know whether this object could > be mounted as a > > virtualy file system root. > > if (manager.canCreateFileSystem(file)) > { > // Use contents of the file > file = manager.createFileSystem(file); > } > > If the manager returns true on canCreateFileSystem depends on the > "mime-type-map" entries in providers.xml. > > first the java internal methods to determine the mimetype (by > filename) > is used and a lookup on mime-type-map is done: > > <mime-type-map mimetype="application/zip" scheme="zip"/> > > if this fails, vfs tries to find an entry using the extension in the > extension-map > > <extension-map extension="jar" scheme="jar"/> > > if a scheme is found this file "canCreate-A-FileSystem". > > There is a todo from the old authors to implement this more > transparently - i will pick this up as one of the next vfs > things i will do. > Maybe a new hasChildren() and then a simple getChildren() > might do the job. > However, for now the above if/create should make it too. > > -- Mario > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] >
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