Hi Melanie,
While submitting content items from CMS to Contenthub, the identifiers
of the items in the CMS are used. The same id can be used to fetch
documents from Contenthub. To get identifier of a JCR node you can use
Node#getIdentifier() method.
If you remove the nodes from CMS and create same nodes in same paths
their identifiers are changed. After that if you resubmit them to
Contenthub, new ContentItems are created (I think this is the case for
you). However, if you don't remove the items in the CMS but only update
them and then do the resubmission, the existing ContentItems will be
overwritten.
You can update an item in the Jackrabbit using a code snippet as follows:
Node testNode = rootNode.getNode("test");
Node jcrContent =
testNode.getNode("news1.txt").getNode("jcr:content");
File f = new File(
"/home/suat/Desktop/technicalStuff/stanbolTests/cmsAdapter/jackrabbit/news3.txt");
Binary binary = session.getValueFactory().createBinary(
new FileInputStream(f));
jcrContent.setProperty("jcr:data", binary);
session.save();
Best,
Suat
On 09/03/2012 12:27 PM, Melanie Reiplinger wrote:
> Hi again Suat,
>
> sorry, I have to be more accurate here: when re-submitting, a new item
> is only created on the contenthub if the repo item has changed, e.g.
> if its document file contains a new or additional sentence. So there
> are no simple duplicates of repo items, but new items for updated
> versions of the same item.
>
>
> Am 03.09.2012 10:54, schrieb Melanie Reiplinger:
>> Hi Suat,
>>
>> ok, I will retry deletion later.
>> In the meantime - is it possible to submit a content repo item under
>> a specific urn to the contenthub? If I re-submit the same items, they
>> are stored under the same title, but with different urns. In order to
>> get a specific document back from the contenthub, I always used an id
>> that I specified at creation. Can I also specify a urn for my repo
>> items when submitting them via contenthubfeed? I know that this might
>> be problematic when submitting subtrees recursively, because then
>> only the root node would have the corresponding urn, but it would
>> also prevent me from re-submitting the same subtree over and over
>> again. Btw, the POST does not return the content-id like it does on
>> the contenthub, so if I don't specify an id at submission, I won't be
>> able to fetch the item back from the contenthub.
>>
>> One more thing: suppose the deletion worked - would then all the
>> duplicates of my content item on the contenthub (created by duplicate
>> submission of the same subtree) be deleted at once ? (since the
>> deletion works by path or id which the item has in the content repo)
>>
>> Thanks,
>> Melanie
>>
>>
>> Am 31.08.2012 14:27, schrieb Suat Gönül:
>>> Hi Melanie,
>>>
>>> The deletion problems seems to be related with the bug described in
>>> STANBOL-727. Could you please retry after that bug is fixed?
>>>
>>> Best,
>>> Suat
>>>
>>> On Thu, Aug 30, 2012 at 1:00 PM, Melanie Reiplinger <
>>> [email protected]> wrote:
>>>
>>>> Hi Suat,
>>>>
>>>> thank you a lot for demonstrating this. It seems my mistake was
>>>> that I did
>>>> not associate files with the nodes. For no specific reason I
>>>> assumed that
>>>> files would be created when the nodes were created. But then I
>>>> guess that
>>>> usually, it's the other way around: when building a repo, the files
>>>> are
>>>> already there and are then are used to build up the tree.
>>>>
>>>> Now how do you delete your 2 content items from the contenthub? The
>>>> documentation says it's the very same syntax as for submitting
>>>> items, just
>>>> using DELETE instead of POST, but that gives me a Bad Request with
>>>> java.lang.**IllegalArgumentException: No content found for any of the
>>>> following parameters [entity, content].
>>>> It does also not work in the REST interface.
>>>>
>>>> Best,
>>>> Melanie
>>>>
>>>>
>>>> Am 27.08.2012 13:42, schrieb Suat Gonul:
>>>>
>>>> Hi Melanie,
>>>>> It is true that a content repo is needed to run unit tests. Anyway, I
>>>>> tested the Jackrabbit and I shall share the steps with you. I hope
>>>>> they
>>>>> would work for you too.
>>>>>
>>>>> First of all, I was able to create nodes in Jackrabbit through the
>>>>> JCR
>>>>> API.
>>>>>
>>>>> - I ran the jackrabbit-standalone-2.4.2.**jar on the 8080 port.
>>>>> - Then created temporary nodes with the following code below. The
>>>>> code
>>>>> create two nodes to be submitted to the Contenthub under the "test"
>>>>> path. The nodes are associated with two files from the local file
>>>>> system. So, you should adapt the file paths. 3 external libraries are
>>>>> required to run this code: jackrabbit-jcr-rmi-2.2.*.jar,
>>>>> jcr-2.0.jar and
>>>>> slf4j-api-*.jar. They are already downloaded when you build
>>>>> Stanbol into
>>>>> the maven repository i.e the .m2 folder.
>>>>>
>>>>>
>>>>> Repository repository = new URLRemoteRepository(
>>>>> "http://localhost:8080/rmi";);
>>>>> Session session = repository.login(new
>>>>> SimpleCredentials("admin",
>>>>> "admin".toCharArray()));
>>>>>
>>>>> Node testNode = null;
>>>>> try {
>>>>> testNode = session.getNode("/test");
>>>>> testNode.remove();
>>>>> } catch (PathNotFoundException e) {
>>>>> // ignore
>>>>> }
>>>>> Node rootNode = session.getRootNode();
>>>>> testNode = rootNode.addNode("test");
>>>>>
>>>>> File f = new File(
>>>>> "/home/suat/Desktop/**technicalStuff/stanbolTests/**
>>>>> cmsAdapter/jackrabbit/news1.**txt");
>>>>> Node newsNode = testNode.addNode(f.getName(), "nt:file");
>>>>> Node resourceNode = newsNode.addNode("jcr:content"**,
>>>>> "nt:resource");
>>>>> resourceNode.setProperty("jcr:**mimeType", "text/plain");
>>>>> Binary binary = session.getValueFactory().**createBinary(
>>>>> new FileInputStream(f));
>>>>> resourceNode.setProperty("jcr:**data", binary);
>>>>>
>>>>> f = new File(
>>>>> "/home/suat/Desktop/**technicalStuff/stanbolTests/**
>>>>> cmsAdapter/jackrabbit/news2.**txt");
>>>>> newsNode = testNode.addNode(f.getName(), "nt:file");
>>>>> resourceNode = newsNode.addNode("jcr:content"**,
>>>>> "nt:resource");
>>>>> resourceNode.setProperty("jcr:**mimeType", "text/plain");
>>>>> binary = session.getValueFactory().**createBinary(new
>>>>> FileInputStream(f));
>>>>> resourceNode.setProperty("jcr:**data", binary);
>>>>> session.save();
>>>>>
>>>>> - I ran the Stanbol on 8081 and executed the following commands:
>>>>> - curl -X GET -H "Accept: text/plain"
>>>>> "http://localhost:8081/**cmsadapter/session?**repositoryURL=http://**
>>>>> localhost:8080/rmi&username=**admin&password=admin&**connectionType=JCR<http://localhost:8081/cmsadapter/session?repositoryURL=http://localhost:8080/rmi&username=admin&password=admin&connectionType=JCR>
>>>>>
>>>>> "
>>>>> - curl -i -X POST --data
>>>>> "sessionKey=e92be985-e722-**419f-a1ad-5fe02628b537&path=/**
>>>>> test&recursive=true"
>>>>> http://localhost:8081/**cmsadapter/contenthubfeed<http://localhost:8081/cmsadapter/contenthubfeed>
>>>>>
>>>>>
>>>>> In the second command the result of the first command should be used.
>>>>> After executing these commands, I was able to see documents on
>>>>> http://localhost:8081/**contenthub/contenthub/store<http://localhost:8081/contenthub/contenthub/store>
>>>>>
>>>>> .
>>>>>
>>>>> Best,
>>>>> Suat
>>>>>
>>>>>
>>>>>
>>>>> On 08/20/2012 01:11 PM, Melanie Reiplinger wrote:
>>>>>
>>>>>> Hi Suat,
>>>>>>
>>>>>> Thanks for your reply.
>>>>>>
>>>>>>
>>>>>> Am 20.08.2012 11:55, schrieb Suat Gönül:
>>>>>>
>>>>>>> Hi Melanie,
>>>>>>>
>>>>>>> Sorry, I could not answer you as I was in holiday. I will start to
>>>>>>> work on
>>>>>>> August 27. In my demonstration, I was using CRX CMS.
>>>>>>>
>>>>>> That seems to be commercial software. I Cannot use that. So I'll
>>>>>> have
>>>>>> to find another way. Under these conditions, I'm not even sure it
>>>>>> makes much sense to create unit tests for the JavaScript
>>>>>> interface to
>>>>>> the cmsadapter, since whoever wanted to run them would need to
>>>>>> have a
>>>>>> content repo locally installed to connect stanbol to it. It makes
>>>>>> sense only if I could set up (or use) a remote repo that's
>>>>>> accessible
>>>>>> from wherever the test script is called...
>>>>>>
>>>>>> Best,
>>>>>> Melanie
>>>>>>
>>>>>> But to connect CRX, I
>>>>>>> have and additional bundle to be added to the OSGi environment.
>>>>>>> I can
>>>>>>> provide you that bundle when I'm back.
>>>>>>>
>>>>>>> I did not access to the repo via HTTP. In my demonstration, a
>>>>>>> session is
>>>>>>> obtained together with a session key after giving the necessary
>>>>>>> credentials
>>>>>>> e.g username, password, rmi endpoint. And that session key is
>>>>>>> used by
>>>>>>> CMS
>>>>>>> Adapter to access to the repo.
>>>>>>>
>>>>>>> Best,
>>>>>>> Suat
>>>>>>>
>>>>>>> On Mon, Aug 20, 2012 at 12:11 PM, Melanie Reiplinger <
>>>>>>> [email protected]> wrote:
>>>>>>>
>>>>>>> Hi Suat,
>>>>>>>> I cannot access my jackrabbit repo via xmlhttp either (although
>>>>>>>> curl
>>>>>>>> works
>>>>>>>> fine), so this might as well be a CORS access problem. In your
>>>>>>>> demo,
>>>>>>>> did
>>>>>>>> you have to somehow provide access to the repo (by setting headers
>>>>>>>> etc)?
>>>>>>>>
>>>>>>>> Best,
>>>>>>>> Melanie
>>>>>>>>
>>>>>>>> Am 15.08.2012 11:15, schrieb Melanie Reiplinger:
>>>>>>>>
>>>>>>>> Hi Suat,
>>>>>>>>
>>>>>>>>> Am 13.08.2012 13:35, schrieb Suat Gonul:
>>>>>>>>>
>>>>>>>>> In any case, I guess that you
>>>>>>>>>> need to configure a RDF Bridge through the
>>>>>>>>>> {stanbol}/system/console/****configMgr interface. There you
>>>>>>>>>> should
>>>>>>>>>> find
>>>>>>>>>> the
>>>>>>>>>> "Apache Stanbol CMS Adapter Default RDF Bridge
>>>>>>>>>> Configurations". In
>>>>>>>>>> that
>>>>>>>>>> configuration you specify the root path in the CMS to be
>>>>>>>>>> exported
>>>>>>>>>> to the
>>>>>>>>>> RDF.
>>>>>>>>>>
>>>>>>>>>> by that you mean the content repository path? This means
>>>>>>>>>> that I set
>>>>>>>>>>> there the path to my content repository?
>>>>>>>>>>>
>>>>>>>>>>> Yes, you set there a path residing in the content repository.
>>>>>>>>>> I have set up a jackrabbit workspace with some toy nodes
>>>>>>>>>> in it. To
>>>>>>>>>>
>>>>>>>>>>> access it remotely, I'd configure something like
>>>>>>>>>>> http://[myserver]/server/
>>>>>>>>>>> <http://lnv-89012.dfki.uni-sb.****de:9002/server/default/**node1<
>>>>>>>>>>>
>>>>>>>>>>> http://lnv-89012.dfki.**uni-sb.de:9002/server/default/**node1<http://lnv-89012.dfki.uni-sb.de:9002/server/default/node1>
>>>>>>>>>>>
>>>>>>>>>>>>> ,
>>>>>>>>>>> but then
>>>>>>>>>>> I can work with this repository exclusively, right?
>>>>>>>>>>>
>>>>>>>>>>> I cannot access the URL you gave, but I guess you
>>>>>>>>>>> should give
>>>>>>>>>> /node1
>>>>>>>>>> path to export it as RDF. I didn't get your question about
>>>>>>>>>> working
>>>>>>>>>> exclusively with the repository. But, you already seem to
>>>>>>>>>> work on the
>>>>>>>>>> default repository of Jackrabbit running on your server.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> I tried with several paths, none will work.
>>>>>>>>> My remote repository stub is
>>>>>>>>> http://lnv-89012.dfki.uni-sb.****de:9002/rmi<http://lnv-89012.**
>>>>>>>>> dfki.uni-sb.de:9002/rmi
>>>>>>>>> <http://lnv-89012.dfki.uni-sb.de:9002/rmi>>
>>>>>>>>> .
>>>>>>>>> (you cannot access those URIs because they are in a closed
>>>>>>>>> network)
>>>>>>>>> For accessing the content repository, I should use (according
>>>>>>>>> to my
>>>>>>>>> jackrabbit guidelines):
>>>>>>>>> http://lnv-89012.dfki.uni-sb.****de:9002/server<http://lnv-**
>>>>>>>>> 89012.dfki.uni-sb.de:9002/**server<http://lnv-89012.dfki.uni-sb.de:9002/server>
>>>>>>>>>
>>>>>>>>>> to
>>>>>>>>> access all workspaces of myJCR repository
>>>>>>>>> http://lnv-89012.dfki.uni-sb.****de:9002/server/default/jcr:****
>>>>>>>>> rootto<http://lnv-89012.dfki.**uni-sb.de:9002/server/default/**
>>>>>>>>> jcr:rootto<http://lnv-89012.dfki.uni-sb.de:9002/server/default/jcr:rootto>
>>>>>>>>>
>>>>>>>>>> access
>>>>>>>>> a single workspace (example with workspace named 'default').
>>>>>>>>> -> this
>>>>>>>>> one is also where I can navigate to with my browser, so this
>>>>>>>>> should
>>>>>>>>> then be
>>>>>>>>> the correct path I guess.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> But I always get the same error about
>>>>>>>>> org.apache.stanbol.cmsadapter.****jcr.mapping.JCRRDFMapper
>>>>>>>>> Failed to
>>>>>>>>> retrieve node having path: <thePath> or its childr
>>>>>>>>>
>>>>>>>>> I'm an absolute beginner with content repositories, using
>>>>>>>>> jackrabbit for
>>>>>>>>> the first time and I'm really unsure of what would have to
>>>>>>>>> work if
>>>>>>>>> everything was correct, but I can see my repository in the
>>>>>>>>> jackrabbit
>>>>>>>>> console and I also can see that my nodes are existing, and the
>>>>>>>>> info
>>>>>>>>> command
>>>>>>>>> tells me that everything looks like I would expect:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Repository:
>>>>>>>>> http://lnv-89012.dfki.uni-sb.****de:9002/rmi<http://lnv-89012.**
>>>>>>>>> dfki.uni-sb.de:9002/rmi
>>>>>>>>> <http://lnv-89012.dfki.uni-sb.de:9002/rmi>>
>>>>>>>>> User : admin
>>>>>>>>> Workspace : default
>>>>>>>>> Node : /
>>>>>>>>>
>>>>>>>>> I looked at your paper ("Semantic Content Management with Apache
>>>>>>>>> Stanbol") and saw that you used jackrabbit in the demo, too. Is
>>>>>>>>> there some
>>>>>>>>> publicly accessible repository I could use for testing (so that I
>>>>>>>>> see what
>>>>>>>>> the path I have to specify looks like in a working example)?
>>>>>>>>>
>>>>>>>>> best,
>>>>>>>>> melanie
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>
>
>
