Why can't I UPDATE an attachment with the Confluence Java API?

[Brian Alston]

If I use the default Confluence GUI to add an updated version of an existing page attachment, the attachment is updated, and Confluence keeps a version history of the attachment. If our users use the ConfluenceSoapService to add an updated version of an existing page attachment, the attachment is updated, and Confluence keeps a version history of the attachment.

However ... if I attempt to add an updated version of an existing page attachment with the AttachmentManager, the attachment does not get updated; Confluence creates a brand new attachment entry on the page.

What gives? Can I not update an attachment using the Java API? Can I only do this if I call the ConfluenceSoapService locally? This should not be this difficult, and it is driving me crazy.

Please Help

[Dennis Andersen]

Hi Brian & Laura,

I was having the same issue but recently found a solution. My solution is based on the fact that I already have an Attachment object to work with. It's possible to re-write if you only have a file/inputstream as well. 

It depends on InputStreamAttachmentResource.java and FileUploadManager.java along with the attachmentManager.

import com.atlassian.confluence.pages.FileUploadManager;

Attachment a = ...; // Get your attachmentObject or File/Inputstream
Page spaceHomePage = ...; // ContentEntityObject where we save the attachment.

AttachmentResource attachmentResource = new InputStreamAttachmentResource(attachmentManager.getAttachmentData(a), a.getFileName(), a.getContentType(), a.getFileSize());

fileUploadManager.storeResource(attachmentResource, spaceHomePage);

[Brian Alston]

I'm sorry, but I was never able to figure this out. In fact, I disliked working with Confluence so much that I found a different job (Android developer now). Good luck, I hope you find your answer.

[Laura Martin]

Hi,

I know this was a year ago, but did you find a solution to this? I am also in the same position and it is driving me mad.

Thanks in advance,

Laura