Node does not exist after upload file

agey — Thu, 18 Nov 2010 10:27:29 GMT

Hi all,I deployed an Alfresco extension that basically it consists in a new interface. Sometimes, we have a problem when an user upload a file and then the user wants to see it, the application returns an error: Node does not exist. If I search it from Node browse of Admin Console it is in correct s

Re: Node does not exist after upload file

mrogers — Thu, 18 Nov 2010 12:04:53 GMT

Where do you see the exception?

If it is in your code then let's see it. And more details of the exception.

Re: Node does not exist after upload file

agey — Mon, 29 Nov 2010 16:14:31 GMT

Hi mroger,

My application consists in creating dossiers that are spaces in Alfresco. These dossiers have infomation and files. Information about each dossier is stored in another database, not in alfresco database, because we want to create and modify data and files to request in dossiers from friendly interface and without restart application.

When a file requested is attached to one dossier (upload to one space in Alfresco) the Alfresco reference is stored in the other database. Then, the application shows dossier information and files but somtimes returns an error because it can't find the file just uploaded.

If we enter into Alfresco and navigate through the nodes, it doesn't find. If we search it from node browse of admin console it is into correct node but when we click on it, returns the error. Only when we restart the application the file is into correct node and the application doesn´t return any error.

This is the code to upload a document:


public void registerOtrosDocumentos(Integer numDossier, File file,
         String fileName){

      String container = ExpedienteModel.DOSSIER_DOCUMENTS;
      this.saveFile(numDossier, file, fileName, container);
      
   }

private NodeRef saveFile(Integer numDossier, File file, String fileName, String container){

      String xpath = "/app:company_home/" +
      "cm:" + DossierModel.DOSSIER_NAME_PREFIX + numDossier+ container;
      StoreRef storeRef = StoreRef.STORE_REF_WORKSPACE_SPACESSTORE;
      NodeRef rootNodeRef = serviceRegistry.getNodeService().getRootNode(storeRef);

      List<NodeRef> results = this.serviceRegistry.getSearchService()
      .selectNodes(rootNodeRef, xpath, null, this.serviceRegistry.getNamespaceService(), false);

      String name;
      if(fileName == null){
         name = file.getName();
      }else{
         name = fileName;
      }
      FileInfo fileInfo = this.serviceRegistry.getFileFolderService().create(
            results.get(0),
            name,
            ContentModel.TYPE_CONTENT);
      NodeRef fileNodeRef = fileInfo.getNodeRef();

      ContentWriter writer = this.serviceRegistry.getContentService()
      .getWriter(fileNodeRef, ContentModel.PROP_CONTENT, true);

      writer.setEncoding(getEncoding());
      if (file != null)
      {
         writer.putContent(file);
      }

      return fileNodeRef;
   }
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And this is the code to show the files of a dossier:


public List<Documents> getDocuments(Integer numDossier)
      throws FileNotFoundException{

      List<Documents> docs = new ArrayList<Documents>();
      String xpath = "/app:company_home/" +
      "cm:" + DossierModel.DOSSIER_NAME_PREFIX + numDossier+
      DossierModel.DOSSIER_DOCUMENTS + "/*";
      StoreRef storeRef = StoreRef.STORE_REF_WORKSPACE_SPACESSTORE;
      NodeRef rootNodeRef = serviceRegistry.getNodeService().getRootNode(storeRef);
      List<NodeRef> results = this.serviceRegistry.getSearchService()
      .selectNodes(rootNodeRef, xpath, null, this.serviceRegistry.getNamespaceService(), false);
      
      for(NodeRef nodeRef: results){
         if(nodeRef!=null){
            Node node = new Node(nodeRef);
            if(node != null){
               String url = DownloadContentServlet.generateDownloadURL(nodeRef, node.getName());
               docs.add(new Documents(node.getName(), url, nodeRef.getId()));
            }
         }         
      }
      if(docs.size()>0){
         return docs;
      }else{   
         return null;
      }

   }
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Appreciate any suggestions on the cause of error and how to solve it.

Thanks,

Re: Node does not exist after upload file

openpj — Mon, 29 Nov 2010 16:33:34 GMT

Probably you should encode in ISO9075 the XPath for the file location, try in this way:

String xpath = "/app:company_home/" +
      "cm:" + ISO9075.encode(DossierModel.DOSSIER_NAME_PREFIX + numDossier+ container);‍‍

Hope this helps.

Re: Node does not exist after upload file

agey — Mon, 29 Nov 2010 18:09:19 GMT

Hi OpenPj,

Thank you very much for your reply. I will try it.

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