[brailleblaster] Re: Michael, Why aren't the direcories being created?
- From: "John J. Boyer" <john.boyer@xxxxxxxxxxxxxxxxx>
- To: brailleblaster@xxxxxxxxxxxxx
- Date: Tue, 13 Mar 2012 05:53:28 -0500
mkdirs() did the trick. The directories are all present on my Linux
development system. I'm thinking of other changes, so I'll hold off on a
push, since everybody who is actively participating on development on
Windows has already created the directories.
Thanks< Michael for the link and the information. I guess you are our
Java guru.
John
On Tue, Mar 13, 2012 at 09:52:20AM -0000, Michael Whapples wrote:
> Here are some notes, you may want to read the javadoc for the java.io.File
> class http://docs.oracle.com/javase/1.5.0/docs/api/java/io/File.html
>
> Firstly how are you creating the directory? Please remember that the
> mkdir() method will not create any required parent directories, if a parent
> directory does not exist then it will fail. Could this be the problem? If
> it is overcome it either by manually creating the parent directories or
> just use the mkdirs() method instead (mkdirs() will create any required
> parent directories for you), bear in mind though mkdirs() even if it fails
> may have created some of the parent directories, if that is important to
> know then manually creating the parent directories might be required. The
> difference between mkdir() and mkdirs() caught out orca developers as well
> and lead to a similar problem, however as orca is python I cannot compare
> the exceptions raised.
>
> Also I am not sure what the situation is regarding creating the directory
> names, might you be getting multiple separators? While I think java can
> swallow these without trouble, you may want to look at options like the
> constructor File(String parent, String child) which will join the parent
> path and child path for you. Oh why java cannot have a join method like
> python for joining whole lists of parts of file/path names rather than this
> constructor which oly takes two parts.
>
> Moving to Java7 would be unlikely to offer anything here I think.
>
> Michael Whapples
>
> -----Original Message-----
> From: John J. Boyer
> Sent: Tuesday, March 13, 2012 9:26 AM
> To: brailleblaster@xxxxxxxxxxxxx
> Subject: [brailleblaster] Michael, Why aren't the direcories being created?
>
> I wrote the code in BBIni.java early and didn't know much about the File
> class. So I used a system property to get the file separator. Later I
> used the File class to create the settings and temp directories. This
> worked fine with the initial paths. Now the directories aren't created
> even in Linux, where the paths are much shorter than for Windows. Does
> Java have a limit on the length of apths or on the number of elements
> they can contain? Would using Java 7 improve the situation?
>
> Thanks,
> John
>
> --
> John J. Boyer; President, Chief Software Developer
> Abilitiessoft, Inc.
> http://www.abilitiessoft.com
> Madison, Wisconsin USA
> Developing software for people with disabilities
>
>
--
John J. Boyer; President, Chief Software Developer
Abilitiessoft, Inc.
http://www.abilitiessoft.com
Madison, Wisconsin USA
Developing software for people with disabilities
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