hi,
I have just resolved a problem due to caching and deletion :
-delete()
-close() <- I found this tip in this thread :)
I understand that close() is needed to flush the cache, but I found a
problem in this sequence :
-delete()
-copy()
-set-attributes()
I catch an exception telling me that the file didn't exist ; but it does
exist : i just have create it !!! so, after creation, the cache seems
not be updated
the solution rigth now is :
-delete()
-close()
-copy()
-set-attributes()
but it is not fair
Mario Ivankovits wrote:
Andy Lewis wrote:
First, what about adding a stat() method on FileObject, something akin
I dont want to introduce a new public api function.
Especially if I think that I have to call stat() immediatly after
resolveFile() every time as I am not interested in performance but more
in correct results.
My current code is flooded with nasty close() (instead of stat()) as
this is the method which is intended to to the same as stat().
Sure, I know, it closes all streams (opened by the calling thread), but
this is not a problem in this context, moreover it is wanted to behave so.
This forces a clean state on the remote side.
I admit, what we can do is to force this during findFiles() ... will see.
While it might not solve every case, for example, if you resolve a
cached deleted file from a URL using FileSystemManager.resolveFile() -
how would that show up? (haven't tested it)
No server round trip here, so this file is still marked as "deleted".
I will have a look in refactoring FileObject to use no internal caching
and allow to decorate it with a CacheFileObject with behaves more or
less like we see it today.
And then, we could have such a CacheFileObject.stat() method.
It should be configureable on FileSystemManager and maybe on FileSystem
level.
And the default might be to use the FileObject without caching.
---
Mario
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Cordialement,
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(. .)
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| Philippe Poulard |
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