Get Version Content, How to?

[manmeet]

Hi,

There is a txt file with 4-5 versions. I am trying to get the contents of the older version using the webservice API. Here I am hardcoding the UUID of a node in the lightWeightVersionStore store. See the code as below:

public static void main(String[] args) throws Exception{

   Store storeRef = new Store(StoreEnum.workspace, "lightWeightVersionStore");   
   
       String uuid = "d7e29d6c-2965-11db-9253-5f4da51af059";
       String path = null;

   //start Session
   AuthenticationUtils.startSession("admin", "admin");
      
   // Get the content service
   ContentServiceSoapBindingStub contentService = WebServiceFactory.getContentService();
      
   // Create a reference to the node to be read
   Reference newContentReference = new Reference (storeRef,uuid,path);
           
          // Read the newly added content from the respository
          Content[] contents = contentService.read(
              new Predicate(new Reference[]{newContentReference}, storeRef, null), 
                   Constants.PROP_CONTENT);
   
        //Print the file contents
         System.out.println(ContentUtils.getContentAsString(contents[0]));

        // End the session
        AuthenticationUtils.endSession();
}‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

But I keep getting the following error:

Exception in thread "main" org.alfresco.webservice.util.WebServiceException: Unable to get content as string.
   at org.alfresco.webservice.util.ContentUtils.getContentAsString(ContentUtils.java:87)
   at ReadFile.readFile(ReadFile.java:52)
   at ReadFile.main(ReadFile.java:30)
Caused by: java.net.MalformedURLException: no protocol: null?ticket=TICKET_87c3cdd6-296a-11db-9253-5f4da51af059
   at java.net.URL.<init>(URL.java:567)
   at java.net.URL.<init>(URL.java:464)
   at java.net.URL.<init>(URL.java:413)
   at org.alfresco.webservice.util.ContentUtils.getContentAsString(ContentUtils.java:75)
   … 2 more‍‍‍‍‍‍‍‍‍‍

I think its able to locate the content, but while trying to read the contents it fails.

Please let me know how to go about this. Is tehre anything wrong with the code?? Do I need to make some modifications??

————————————
Thanks, Manmeet Bhavsar

[manmeet]

Anyone with a probable solution???

[cludt]

Have a look at the SDK, there is an example GetVersions. Use the VersionHistory to fetch the versions.

[manmeet]

Hi,

Thanks for your reply!

I couldn't locate a GetVersions sample in the SDK under WebserviceSamples.
I am using the 1.3.0 SDK. Is it under sum other samples project?? I am looking to use the Webservice API to achieve the results.

Any pointers shall be useful.

Thanks,
Manmeet

[cludt]

Hi Manmeet,

if you use Eclipse, it's in the SDK WebServiceSamples project.
Or have a look at \samples\WebServiceSamples\source\org\alfresco\sample\webservice\GetVersions.java

Christian