Hi Tycho,
The OpenCMIS server framework has been used by several companies to
build CMIS servers. (Alfresco, Nuxeo, SAP, IBM, OpenText, to name a
few.) They all have different back-ends with different structures or no
structure at all. It's absolutely feasible to implement a CMIS server
with the OpenCMIS server framework on top of another data source.
The OpenCMIS Server Development Guide has originally been written for a
hands-on training. The participants should implement a CMIS server
within 3 hours. Because of the short period of time, we required a
backend all participants were familiar with - the file system.
I don't know what is better option for you, taking the code and changing
it or starting from scratch. Both have pros and cons.
In the end, you need two classes. One derived from
AbstractServiceFactory and one derived from AbstractCmisService.
Implement the read-only operations first.
- Florian
Hello,
In the project I am currently working on, I am trying to implement an
OpenCMIS Server to enable a CMIS connection to our repository.
Following the OpenCMIS Server Development Guide from the corresponding
Github page (see addendum links), I managed to get the Java project
running in Eclipse using Maven and a Tomcat server. In the default
state, this project works with a repository based on a file system
structure. In other words, it assumes a root and a directory/file
structure and uses the Java File class to simulate this logic.
However, the repository I am trying to connect to is an object storage
repository. This means that there is no mention of a file, or
directory. On top of this object storage we have an ElasticSearch
index in which some structure is defined (i.e. there is a file system
like structure through parent/child relationships in the index). I am
now wondering if it is possible to rewrite the provided code in such a
way that it can handle such an object instead of a Java File object.
My attempts thus far have been unsuccessful, but I have not changed
all the required parts of the project yet. After working mainly in the
"FilebridgeRepository.java" file, I noticed that removing the File
structure from that file raised errors in files higher up the chain,
because they expect a File object to be returned.
My question would then be: "Is it feasible to rewrite this project to
a project that can handle different object types?". If the only way to
do that is to rewrite the entire framework, I am unsure if it is even
worth it.
I will be glad to explain more details about my project if more
information is required.
Kind regards,
Tycho Nijon
-----
addendum:
[OpenCMIS Server Development Guide PDF]
https://github.com/cmisdocs/ServerDevelopmentGuide/blob/master/doc/OpenCMIS%20Server%20Development%20Guide.pdf?raw=true
[OpenCMIS Server Development Guide github]
https://github.com/cmisdocs/ServerDevelopmentGuide
