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Posted to issues@commons.apache.org by "Joerg Schaible (JIRA)" <ji...@apache.org> on 2012/11/14 10:14:11 UTC
[jira] [Reopened] (VFS-443) Need an easy way to convert from a
FileObject to a File
[ https://issues.apache.org/jira/browse/VFS-443?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Joerg Schaible reopened VFS-443:
--------------------------------
> Need an easy way to convert from a FileObject to a File
> -------------------------------------------------------
>
> Key: VFS-443
> URL: https://issues.apache.org/jira/browse/VFS-443
> Project: Commons VFS
> Issue Type: Bug
> Affects Versions: 2.0
> Reporter: Nicholas Allen
> Assignee: Gary Gregory
> Fix For: 2.1
>
>
> I've seen the reasons why Apache does not want to provide an easy way to convert from a FileObject to a java.io.File and those reasons make sense - however, I think that some things are being overlooked and there are still valid reasons for needing to convert from a FileObject to a File.
> Firstly, I would like to always use Apache VFS for everything I do - even if I know it's only on the local file system. The reasons for this are:
> 1. it makes the code more flexible (it might start of being local file system and then as specs change it could become a requirement to work over http or inside zip files for example).
> 2. The API is nicer to use than the java.io.File and it's easier to write cross platform code using it (file separator is always "/" etc).
> So if I work with Apache VFS for local file system use I would like to be able to get back to a java.io.File in case I need to interface with same other library. I would like a method that converted to a File or null if not possible. This would allow me to take an alternate action (eg copy file to local temp file if it's not already a local file). There's no need to copy the file if it is already local.
> The simplest fix for this is to just make the getLocalFile() method in LocalFile public. Once the user knows it's a LocalFile object it makes sense to call this method to obtain the java.io.File. So I could write a method like this:
> /**
> * If the supplied {@link FileObject} represents a local file then this returns that, otherwise
> * returns null.
> */
> public File getLocalFile(final FileObject fileObject)
> {
> if (fileObject instanceof LocalFile)
> {
> final LocalFile localFile = (LocalFile)fileObject;
> return localFile.getLocalFile();
> }
> return null;
> }
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