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From "James Carman" <ja...@carmanconsulting.com>
Subject Re: [ understand VFS ]
Date Wed, 24 Sep 2008 10:21:22 GMT
No problem.  Glad to help!

On Wed, Sep 24, 2008 at 4:15 AM, Bakary Dialaya DJIBA <dialaya@gmail.com> wrote:
>  It works well.
> Thanks.
>
> On Wed, Sep 24, 2008 at 2:10 AM, James Carman <james@carmanconsulting.com>wrote:
>
>> I wouldn't do any downcasting if you want it to be generic.  Use the
>> FileObject API:
>>
>> FileObject rootDir = manager.resolveFile("sch:/");
>> FileObject userFolder = rootDir.resolveFile(userName);
>> userFolder.createFolder();
>> FileObject userFile = userFolder.resolveFile("MyFile.txt");
>> userFile.createFile();
>>
>> To get stuff into this "user file", you can use:
>>
>> File localFile = ...;
>> FileObject localFileObject = manager.toFileObject(localFile);
>> FileUtil.copyContent(localFileObject,userFile);
>>
>> On Tue, Sep 23, 2008 at 3:37 PM, Bakary Dialaya DJIBA <dialaya@gmail.com>
>> wrote:
>> > Hi,
>> >
>> > Given a FileSystem *fs* (extends abstractFS) and a FileObject *fo
>> *(extends
>> > AbstractFO), how can I attach the fo to the fs?
>> >
>> > It's a silly question. I am trying to create a provider that I'll add to
>> > the default manager (of VFS). The provider is added successfully but I
>> > cannot make a link between *fs* and *fo*.
>> >
>> > To do this I write the code below:
>> >
>> > DefaultFileSystemManager manager new DefaultFileSystemManager();
>> > MyProvider provider = new MyProvider();
>> > FileSystemOptions fileSystemOptions = new FileSystemOptions();
>> >
>> > manager.addProvider("sch", provider);
>> > manager.init();
>> >
>> > CustomFileObject fo = (CustomFileObject)manager.resolveFile("sch:/");
>> >
>> > CustomFileName fn = new CustomFileName("sch",
>> "userName",FileType.FOLDER);
>> >
>> > CustomFileSystem fs = new CustomFileSystem(fn,fileSystemOptions);
>> > fs.attach(fo);
>> > System.out.println(fo.isAttached()); // return false
>> > fo.doAttach();
>> > System.out.println(fo.isAttached()); // return false
>> >
>> >
>> > My second problème is that I don't know how to set my root file system.
>> And
>> > also fo.getParent() throw a null pointer exception.
>> >
>> > Someone can tell me how to do this:
>> >
>> > FS
>> >  |__FileObject1 ...
>> >  |
>> >  |__FileObject2 ...
>> >
>> > or give me a tutorial to understand VFS API.
>> >
>> > Thanks & Regards.
>> >
>> >
>> > --
>> > Bakary,
>> >
>>
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>>
>
>
> --
> Bakary,
>

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