file issues on webdav

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file issues on webdav

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truebner file issues on webdav

Oct 21 2008, 8:42 AM

Hi there,



I've got some questions regarding the webdav implementation.



Currently we are building a cms like system with folders, xml- and 

binary-files.

So as of Davids Modell Rule #6 we use hierarchy nodes like nt:folders and 

nt:files for structure and nt:unstructured for content nodes.



The repository has 2 interfaces:

- a webapp to add, edit and delete files

- standard webdav (jcr webapp 1.4)



I enabled versioning on the jcr:content node of nt:files and added some 

mixin node definitions.



Ok, so I've got 2 questions. 

I searched the web to get some information about autocommit and jcr 

through webdav. I've found this issue

http://issues.apache.org/jira/browse/JCR-1348

Is there anything new to this?

I need this feature, maybe I could help?



Another issue is that all my content files have a zero file-size in 

webdav.

The structure of these files is comparable to an XML-backed Content 

Repository (JCR 170 Sec.5.4) 

with a mapping of xml structure to a node-property structure.



I've tried the Windows Explorer, Novell Netdrive and DAVExplorer. 

When I copy the file with the Windows Explorer from webdav to local, the 

file gets a size and a content,

but editing the file on the server (NetDrive) there is no content.

I need the server editing feature, otherwise webdav doesn't make any sense 

in this app.



Maybe the zero-file-size is a bug?



Tobias





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Angela Schreiber Re: file issues on webdav

Oct 21 2008, 9:27 AM

hi tobias



> I searched the web to get some information about autocommit and jcr 

> through webdav. I've found this issue

> http://issues.apache.org/jira/browse/JCR-1348

> Is there anything new to this?



no. this is still open.



> I need this feature, maybe I could help?



sure. there are some thoughts in the issue regarding

the resolution.

some prerequisites i didn't mention: in order to be able

to set custom properties on a webdav resource the underlying

jcr file node must not have it's jcr:content node being

nt:resource (by default it's nt:unstructured in the simple

dav server).



further more: if the DAV:auto-version property was

present in the JCR repository, performing the automated

checkout/checkin or lock/unlock could be done in the

handlers for resource updates/creation.



but note, that this is just a rough guideline. i didn't

carefully think about all the details of the implementation.



> Another issue is that all my content files have a zero file-size in 

> webdav.

> The structure of these files is comparable to an XML-backed Content 

> Repository (JCR 170 Sec.5.4) 

> with a mapping of xml structure to a node-property structure.

[...]

> Maybe the zero-file-size is a bug?



currently the DAV:getcontentlength property is set if

a jcr:data property exists below fileNode/jcr:content.

-> see DefaultHandler#exportProperties (line 435)



if your content structured in a different way (no jcr:data

property) the content length is undefined (not easy to determine).



can you check if this is the reason for the missing

length?



if this is the case you may add your custom Handler

implementation that calculates the length.



hope that helps

angela

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