Examples of org.dspace.content.Item

org.dspace.content.Item
Class representing an item in DSpace.
This class holds in memory the item Dublin Core metadata, the bundles in the item, and the bitstreams in those bundles. When modifying the item, if you modify the Dublin Core or the "in archive" flag, you must call update for the changes to be written to the database. Creating, adding or removing bundles or bitstreams has immediate effect in the database. @author Robert Tansley @author Martin Hald @version $Revision: 4644 $


        // for now, forget about any targets but item.
        if (dso.getType() != Constants.ITEM)
            throw new CrosswalkInternalException("Wrong target object type, QDCCrosswalk can only crosswalk to an Item.");


        Item item = (Item)dso;


        Iterator mi = ml.iterator();
        while (mi.hasNext())
        {
            Element me = (Element)mi.next();
            String key = makeQualifiedTagName(me);


            // if the root element gets passed here, recurse:
            if (me.getName().equals("qualifieddc"))
                ingest(context, dso, me.getChildren());


            else if (element2qdc.containsKey(key))
            {
                String qdc[] = ((String)element2qdc.get(key)).split("\\.");


                // get language - prefer xml:lang, accept lang.
                String lang = me.getAttributeValue("lang", Namespace.XML_NAMESPACE);
                if (lang == null)
                    lang = me.getAttributeValue("lang");


                if (qdc.length == 3)
                    item.addMetadata(qdc[0], qdc[1], qdc[2], lang, me.getText());
                else if (qdc.length == 2)
                    item.addMetadata(qdc[0], qdc[1], null,   lang, me.getText());
                else
                    throw new CrosswalkInternalException("Unrecognized format in QDC element identifier for key=\""+key+"\", qdc=\""+(String)element2qdc.get(key)+"\"");
            }
            else
                log.warn("WARNING: "+myName+": No mapping for Element=\"" + key+"\" to qdc.");

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        try
        {
            // Save the PDF in a bitstream first, since the parser
            // has to read it as well, and we cannot "rewind" it after that.
            wi = WorkspaceItem.create(context, collection, false);
            Item myitem = wi.getItem();
            original = myitem.createBundle("ORIGINAL");
            bs = original.createBitstream(pkg);
            pkg.close();
            bs.setName("package.pdf");
            setFormatToMIMEType(context, bs, "application/pdf");
            bs.update();
            log.debug("Created bitstream ID="+String.valueOf(bs.getID())+", parsing...");


            crosswalkPDF(context, myitem, bs.retrieve());


            wi.update();
            context.commit();
            success = true;
            log.info(LogManager.getHeader(context, "ingest",
                "Created new Item, db ID="+String.valueOf(myitem.getID())+
                ", WorkspaceItem ID="+String.valueOf(wi.getID())));
            return wi;
        }
        finally
        {

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               AuthorizeException, SQLException, IOException
    {
        if (dso.getType() != Constants.ITEM)
            throw new PackageValidationException("This disseminator can only handle objects of type ITEM.");


        Item item = (Item)dso;
        try
        {
            BitstreamFormat pdff = BitstreamFormat.findByShortDescription(context,
                                    BITSTREAM_FORMAT_NAME);
            if (pdff == null)

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    public Element disseminateElement(DSpaceObject dso)  throws CrosswalkException, IOException, SQLException, AuthorizeException 
  {
      if (dso.getType() != Constants.ITEM)
            throw new CrosswalkObjectNotSupported("DIMDisseminationCrosswalk can only crosswalk an Item.");
        Item item = (Item)dso;
        
      DCValue[] dc = item.getMetadata(Item.ANY, Item.ANY, Item.ANY, Item.ANY);
        Element dim = new Element("dim", DIM_NS);
        for (int i = 0; i < dc.length; i++)
        {
            Element field = new Element("field", DIM_NS);
            field.setAttribute("mdschema", dc[i].schema);

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        throws CrosswalkException,
               IOException, SQLException, AuthorizeException
    {
        if (dso.getType() != Constants.ITEM)
            throw new CrosswalkObjectNotSupported("METSDisseminationCrosswalk can only crosswalk an Item.");
        Item item = (Item)dso;


        PackageDisseminator dip = (PackageDisseminator)
          PluginManager.getNamedPlugin(PackageDisseminator.class, METS_PACKAGER_PLUGIN);
        if (dip == null)
            throw new CrosswalkInternalException("Cannot find a disseminate plugin for package="+METS_PACKAGER_PLUGIN);

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        int itemID = parameters.getParameterAsInteger("itemID",-1);
        int highlightID = parameters.getParameterAsInteger("highlightID",-1);
        String baseURL = contextPath+"/admin/epeople?administrative-continue="+knot.getId();


    /* First, set up our various data structures */
    Item item = Item.find(context, itemID);
    Bundle[] bundles = item.getBundles();
    Bitstream[] bitstreams;
    
    ArrayList<ResourcePolicy> itemPolicies = (ArrayList<ResourcePolicy>)AuthorizeManager.getPolicies(context, item);
    
    ArrayList<ResourcePolicy> bundlePolicies = new ArrayList<ResourcePolicy>();
    ArrayList<ResourcePolicy> bitstreamPolicies = new ArrayList<ResourcePolicy>();


    // DIVISION: main
    Division main = body.addInteractiveDivision("edit-item-policies",contextPath+"/admin/authorize",Division.METHOD_POST,"primary administrative authorization");
    main.setHead(T_main_head.parameterize(item.getHandle(),item.getID()));
    main.addPara().addHighlight("italic").addContent(T_main_para1);
    main.addPara().addHighlight("italic").addContent(T_main_para2);
    
      Table table = main.addTable("policies-confirm-delete",itemPolicies.size() + 3, 5);
        Row header = table.addRow(Row.ROLE_HEADER);
        header.addCell();
        header.addCell().addContent(T_head_id);
        header.addCell().addContent(T_head_action);
        header.addCell().addContent(T_head_group);
        header.addCell();


        
        // First, the item's policies are listed
        Row subheader = table.addRow(null,Row.ROLE_HEADER,"subheader");
        subheader.addCell(1, 4).addHighlight("bold").addContent(T_subhead_item);
        subheader.addCell().addHighlight("bold").addXref(baseURL + "&submit_add_item", T_add_itemPolicy_link);
        
        this.rowBuilder(baseURL, table, itemPolicies, item.getID(), Constants.ITEM, highlightID);
      
      // Next, one by one, we get the bundles
      for (Bundle bundle : bundles) {
        subheader = table.addRow(null,Row.ROLE_HEADER,"subheader");
        subheader.addCell(null, null, 1, 4, "indent").addHighlight("bold").addContent(T_subhead_bundle.parameterize(bundle.getName(),bundle.getID()));

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  public void ingest(Context context, DSpaceObject dso, Element root) throws CrosswalkException, IOException, SQLException, AuthorizeException {
    
    if (dso.getType() != Constants.ITEM)
            throw new CrosswalkObjectNotSupported("DIMIngestionCrosswalk can only crosswalk an Item.");
        Item item = (Item)dso;
        
        if (root == null) {
          System.err.println("The element received by ingest was null");
          return;
        }
        
        List<Element> metadata = root.getChildren("field",DIM_NS);
        for (Element field : metadata) {
          item.addMetadata(field.getAttributeValue("mdschema"), field.getAttributeValue("element"), field.getAttributeValue("qualifier"), 
              field.getAttributeValue("lang"), field.getText());
        }
        
  }

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     */
    public static WorkflowItem start(Context c, WorkspaceItem wsi)
            throws SQLException, AuthorizeException, IOException
    {
        // FIXME Check auth
        Item myitem = wsi.getItem();
        Collection collection = wsi.getCollection();


        log.info(LogManager.getHeader(c, "start_workflow", "workspace_item_id="
                + wsi.getID() + "item_id=" + myitem.getID() + "collection_id="
                + collection.getID()));


        // record the start of the workflow w/provenance message
        recordStart(c, myitem);


        // create the WorkflowItem
        TableRow row = DatabaseManager.create(c, "workflowitem");
        row.setColumn("item_id", myitem.getID());
        row.setColumn("collection_id", wsi.getCollection().getID());


        WorkflowItem wfi = new WorkflowItem(c, row);


        wfi.setMultipleFiles(wsi.hasMultipleFiles());

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                // remove workflow tasks
                deleteTasks(c, wi);


                mycollection = wi.getCollection();


                Item myitem = archive(c, wi);


                // now email notification
                notifyOfArchive(c, myitem, mycollection);
                archived = true;
            }

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     */
    private static Item archive(Context c, WorkflowItem wfi)
            throws SQLException, IOException, AuthorizeException
    {
        // FIXME: Check auth
        Item item = wfi.getItem();
        Collection collection = wfi.getCollection();


        log.info(LogManager.getHeader(c, "archive_item", "workflow_item_id="
                + wfi.getID() + "item_id=" + item.getID() + "collection_id="
                + collection.getID()));


        InstallItem.installItem(c, wfi);


        // Log the event
        log.info(LogManager.getHeader(c, "install_item", "workflow_id="
                + wfi.getID() + ", item_id=" + item.getID() + "handle=FIXME"));


        return item;
    }

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