topic Re: Can't get children for User Homes in Alfresco Archive

Can't get children for User Homes

naresh — Fri, 02 Sep 2011 18:48:24 GMT

I am trying to browse the User Homes folder using OpenCMIS. My code is as followsbjectId folderId = session.createObjectId(folderIdString);Folder folder = (Folder)session.getObject(folderId);for (CmisObject cmisObject : folder.getChildren()) { // print child}‍‍‍‍‍‍‍While session.getObject() get

Re: Can't get children for User Homes

fmui — Tue, 06 Sep 2011 08:32:19 GMT

Hi Naresh,

That should work. You should be able to see all children of the User Homes folder if you have the permission to see them with the logged in user. This folder is not special to CMIS.

- Florian

Re: Can't get children for User Homes

naresh — Wed, 07 Sep 2011 14:39:23 GMT

Ok, I think it is some sort of permissions issue.

- If I go through share, I am able to visit User Homes and my folder underneath it.
- If I go through CMIS workbench (with the same user id) and I click on User Homes, I get a 500 - Internal Error. The log says:


org.apache.chemistry.opencmis.commons.exceptions.CmisRuntimeException: Internal Server Error
   at org.apache.chemistry.opencmis.client.bindings.spi.atompub.AbstractAtomPubService.convertStatusCode(AbstractAtomPubService.java:450)
   at org.apache.chemistry.opencmis.client.bindings.spi.atompub.AbstractAtomPubService.read(AbstractAtomPubService.java:552)
   at org.apache.chemistry.opencmis.client.bindings.spi.atompub.AbstractAtomPubService.getObjectInternal(AbstractAtomPubService.java:777)
   at org.apache.chemistry.opencmis.client.bindings.spi.atompub.ObjectServiceImpl.getObject(ObjectServiceImpl.java:433)
   at org.apache.chemistry.opencmis.client.runtime.SessionImpl.getObject(SessionImpl.java:393)
   at org.apache.chemistry.opencmis.workbench.model.ClientModel.loadObject(ClientModel.java:177)
   at org.apache.chemistry.opencmis.workbench.FolderTable$1.valueChanged(FolderTable.java:103)
   at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:167)
   at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:147)
   at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:194)
   at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:388)
   at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:398)
   at javax.swing.DefaultListSelectionModel.setSelectionInterval(DefaultListSelectionModel.java:442)
   at javax.swing.JTable.changeSelectionModel(JTable.java:2351)

Wrapped Exception (with status template): 08070651 Error during processing of the template '08070650 Access Denied.  You do not have the appropriate permissions to perform this operation.'
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

- If I go at the same folder through my app (which uses OpenCMIS), I don't get any exception (and I don't think I am eating any) but I simply get an empty folder with no children.

Any clues as to what might be the problem?

Thanks.
Naresh

Re: Can't get children for User Homes

fmui — Wed, 07 Sep 2011 15:06:35 GMT

The Workbench error message makes kind of sense. Try connecting via the Expert tab in the login dialog and add this line to the configuration:

cmis.workbench.object.includeAcls=false‍

The error message should disappear.

If you are calling getObjectByPath() with a path which includes User Homes, does that work?

Which Alfresco version are you using? Have there been issues with the Lucene index? (Alfresco 3.x retrieves folder children from the Lucene index. Alfresco 4 queries the database.)

- Florian

Re: Can't get children for User Homes

naresh — Wed, 07 Sep 2011 22:43:26 GMT

Adding cmis.workbench.object.includeAcls=false to workbench configuration makes the error message go away. But when I traverse to User Homes, it is still empty.

getObjectByPath() with "/User Homes/BhatiNa/sqlj-overview.pdf" or any sub-path of this works just fine.

Alfresco version 3.4.0 (d 3370)

No idea if we have had any issues with the Lucene index.

Re: Can't get children for User Homes

fmui — Thu, 08 Sep 2011 10:00:48 GMT

I cannot reproduce it. Have you tried an other interface, WebDAV for example?
The only explanation at the moment is the Lucene index…

Re: Can't get children for User Homes

naresh — Thu, 08 Sep 2011 13:31:53 GMT

I have some more information on this issue:

I tried accessing User Homes on another Alfresco instance within my company - same issue - shows zero children. This makes me think it can't be the Lucene index (unless the indexes are messed up on both instances). In any case, how do I rebuild the index?

I also tried the same thing on an instance on Amazon - and the same scenario works just fine over there. I can see my own folder under User Homes (and nobody else's folders), I can navigate to its children. That makes me think it is a permissions issue. Does the CMIS interface use the same permissions model as Alfresco share. Is there any other place I should be setting permissions for CMIS?

Thanks.
Naresh

Re: Can't get children for User Homes

fmui — Thu, 08 Sep 2011 14:15:07 GMT

The CMIS interface does not introduce any new permission rules. Permissions are solely handled by the repository.
So you should get the same view in Alfresco Share, Alfresco Explorer and CMIS when you are logged in with the same user.

Florian

Re: Can't get children for User Homes

naresh — Thu, 08 Sep 2011 14:27:53 GMT

Ok, then may be I should rebuild the indexes. Can you please point me to the docs for that? I could only find this which is probably not what I want:

Alfresco Documentation > Administering > Backing up and restoring > Backing up and restoring Lucene indexes