RE: Error Deleting Item

[Andy Bowes <an...@scientiasolutions.com>]

Hi Oliver

Thanks for the reply.

Closing the stream did help to resolve the problem.  (I wasn't aware that
the stream had even been opened as I hadn't called the getStream() method).

Thanks

Andy Bowes


-----Original Message-----
From: Oliver Zeigermann
To: Slide Users Mailing List
Sent: 29/10/2004 10:21
Subject: Re: Error Deleting Item

The error tells you that you still have a temporary read lock on the
resource to delete. Either execute contentHelper.retrieve(slideToken,
itemUri, currentRevision); in a transaction or get the stream from it
and close it (or access the content in any other way).

Oliver


On Fri, 29 Oct 2004 09:58:24 +0100, Andy Bowes
<an...@scientiasolutions.com> wrote:
> Hi Guys
> 
> I am using the Slide API directly rather than via the WebDav layer and
I am
> encountering an error that has had me baffled for quite a few days.
> 
> If I attempt to delete an item after fetching content then I get the
> following error (after it seems to hang for ages):
> 
> 29 Oct 2004 09:51:30 -
> org.apache.slide.store.txfile.rm.impl.FileResourceManager - WARNING -
Could
> not commit tx main-1099039880546-8, rolling back instead
> 29 Oct 2004 09:51:30 -
> org.apache.slide.store.txfile.rm.impl.FileResourceManager - WARNING -
> org.apache.slide.store.txfile.rm.ResourceManagerException:
> main-1099039880546-8: Could not upgrade to commit lock for resource at
> '/testfolder/myTestItem_1.0' (ERR_NO_LOCK)
> org.apache.slide.store.txfile.rm.ResourceManagerException:
> main-1099039880546-8: Could not upgrade to commit lock for resource at
> '/testfolder/myTestItem_1.0' (ERR_NO_LOCK)
>         at
>
org.apache.slide.store.txfile.rm.impl.FileResourceManager$TransactionCon
text
> .upgradeLockToCommit(FileResourceManager.java:1434)
>         at
>
org.apache.slide.store.txfile.rm.impl.FileResourceManager$TransactionCon
text
> .commit(FileResourceManager.java:1383)
>         at
>
org.apache.slide.store.txfile.rm.impl.FileResourceManager.commitTransact
ion(
> FileResourceManager.java:616)
>         at
>
org.apache.slide.store.txfile.AbstractTxFileStoreService.commit(Abstract
TxFi
> leStoreService.java:248)
>         at
>
org.apache.slide.transaction.SlideTransaction.commit(SlideTransaction.ja
va:3
> 01)
>         at
>
org.apache.slide.transaction.SlideTransactionManager.commit(SlideTransac
tion
> Manager.java:187)
>         at
>
org.apache.slide.common.NamespaceAccessTokenImpl.commit(NamespaceAccessT
oken
> Impl.java:412)
> 
> I have extracted the key parts of my calls to the Slide API into a
single
> method (as show below) so that I can reproduce this error.  If I
remove the
> call to contentHelper.retrieve() then it all works fine.
> 
> Can anyone out there enlighten me ?
> 
> Thanks
> 
> Andy Bowes
> 
> p.s. I am using v2.0 and I have encountered this issue on both the
Text &
> JDBC File Stores.
> 
>  private void testSlideCreation(SlideToken slideToken,
>                                NamespaceAccessToken accessToken,
>                                String itemUri) throws Exception {
>         Content contentHelper = accessToken.getContentHelper();
>         Structure structureHelper = accessToken.getStructureHelper();
> 
>         // Start the Transaction
>         accessToken.begin();
> 
>         structureHelper.create(slideToken, new SubjectNode(),
itemUri);
> 
>         NodeRevisionDescriptor revisionDesc =  new
NodeRevisionDescriptor();
> 
>             Date now = new Date();
>         revisionDesc.setCreationDate(now);
>         revisionDesc.setCreationUser("root");
>         revisionDesc.setLastModified(now);
>         revisionDesc.setModificationDate(now);
>         revisionDesc.setModificationUser("root");
>         revisionDesc.setResourceType("scientia:test");
> 
>         String contents = "Test Binary Contents";
>         revisionDesc.setContentLength(contents.length());
>         revisionDesc.setContentType("application/pdf");
>         revisionDesc.setContentLanguage("en");
> 
>         NodeRevisionContent revisionContent = new
NodeRevisionContent();
>         revisionContent.setContent(contents.getBytes());
> 
>             contentHelper.create(slideToken, itemUri, revisionDesc,
> revisionContent );
> 
>         // Commit the Creation Transaction
>         accessToken.commit();
> 
>         // Fetch the Created Item
>         ObjectNode itemNode = structureHelper.retrieve(slideToken,
itemUri);
>         NodeRevisionDescriptors revisions =
> contentHelper.retrieve(slideToken, itemUri);
> 
>         // Get the latest revision of this Content
>         NodeRevisionDescriptor currentRevision =
> contentHelper.retrieve(slideToken, revisions);
> 
>             // Get the Content of the Current Revision
>         NodeRevisionContent content =
contentHelper.retrieve(slideToken,
> itemUri, currentRevision);
> 
>         // Delete the Created Item
>         accessToken.begin();
>         Macro macroHelper = accessToken.getMacroHelper();
>         macroHelper.delete(slideToken, itemUri);
>         accessToken.commit();
> }
> 
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