topic Re: CMIS with multi tenancy in Alfresco Archive

CMIS with multi tenancy

andrewg5e — Fri, 10 Feb 2012 21:21:11 GMT

We're using CMIS (via OpenCMIS) to access an Alfresco Community 4.0b repository with multi-tenancy enabled. When we were using the "old" 3.x CMIS AtomPub endpoint, users in different tenants got the tenant-specific folders and documents in object fetches. When using the new 4.x endpoint, all tenants

Re: CMIS with multi tenancy

gressho — Mon, 13 Feb 2012 07:00:21 GMT

Yes, I've seen this behaviour! We will try with the 4.0 Enterprise version and 4.0d :cry:

Re: CMIS with multi tenancy

gressho — Mon, 13 Feb 2012 09:20:42 GMT

Just tested with the enterprise release: the repository ids are identical in all tenants, the id's of the folders and documents inside differ!
So I'll give the 4.0d community edition a try (was released the same day).

Re: CMIS with multi tenancy

andrewg5e — Mon, 13 Feb 2012 14:01:15 GMT

Thanks, I'll also upgrade to 4.0d as well and see if that has a fix.

Re: CMIS with multi tenancy

andrewg5e — Mon, 06 Aug 2012 22:30:04 GMT

I have an update to this. We continued issues with Alfresco 4.0.d Community and the 4.x Atom endpoint. I debugged the problem and it turned out to be an issue with how the CMISConnector manages its map of CMISRenditionMapping objects. In a multi-tenancy environment, the map does not seem to get pre-populated consistently. So the following code can cause a NullPointerException:


    public List<RenditionData> getRenditions(NodeRef nodeRef, String renditionFilter, BigInteger maxItems,
            BigInteger skipCount)
    {
        String tenantDomain = tenantAdminService.getCurrentUserDomain();
        CMISRenditionMapping mapping = renditionMapping.get(tenantDomain);    //BUG: "mapping" might be null

        return mapping.getRenditions(nodeRef, renditionFilter, maxItems, skipCount);
    }
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My fix was to test for "null" and add a map entry if needed:


    public List<RenditionData> getRenditions(NodeRef nodeRef, String renditionFilter, BigInteger maxItems,
            BigInteger skipCount)
    {
        String tenantDomain = tenantAdminService.getCurrentUserDomain();
        CMISRenditionMapping mapping = getRenditionMapping(tenantDomain);

        return mapping.getRenditions(nodeRef, renditionFilter, maxItems, skipCount);
    }

   private CMISRenditionMapping getRenditionMapping(String tenantDomain)
   {
      CMISRenditionMapping mapping = renditionMapping.get(tenantDomain);
      if (mapping == null)
      {
         mapping = new CMISRenditionMapping(nodeService, contentService, renditionService,
               transactionService, kindToRenditionNames);

      }
      return mapping;
   }

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Hope this helps anyone who's using Alfresco 4.0 Community with CMIS and multi-tenancy enabled.