/**
   * For Editing : adds an attribute from a metadata ([add] link). FIXME: Modify and use within Ajax
   * controls
   *
   * @param dbms
   * @param id
   * @param ref
   * @param name
   * @param currVersion
   * @return
   * @throws Exception
   */
  public synchronized boolean addAttribute(
      Dbms dbms, String id, String ref, String name, String currVersion) throws Exception {
    Element md = xmlSerializer.select(dbms, "Metadata", id);

    // --- check if the metadata has been deleted
    if (md == null) return false;

    String schema = dataManager.getMetadataSchema(dbms, id);
    EditLib editLib = dataManager.getEditLib();
    editLib.expandElements(schema, md);
    editLib.enumerateTree(md);

    // --- get element to add
    Element el = editLib.findElement(md, ref);

    if (el == null) Log.error(Geonet.DATA_MANAGER, MSG_ELEMENT_NOT_FOUND_AT_REF + ref);
    // throw new IllegalStateException("Element not found at ref = " + ref);

    // --- remove editing info added by previous call
    editLib.removeEditingInfo(md);

    if (el != null) {
      el.setAttribute(new Attribute(name, ""));
    }

    editLib.contractElements(md);
    String parentUuid = null;
    md =
        dataManager.updateFixedInfo(
            schema, id, null, md, parentUuid, DataManager.UpdateDatestamp.no, dbms);
    String changeDate = null;
    xmlSerializer.update(dbms, id, md, changeDate, false, context);

    // Notifies the metadata change to metatada notifier service
    dataManager.notifyMetadataChange(dbms, md, id);

    // --- update search criteria
    boolean workspace = false;
    dataManager.indexInThreadPoolIfPossible(dbms, id, workspace);

    return true;
  }
  /**
   * For Ajax Editing : adds an element or an attribute to a metadata element ([add] link).
   *
   * @param dbms
   * @param session
   * @param id
   * @param ref
   * @param name
   * @param childName
   * @return
   * @throws Exception
   */
  public synchronized Element addElementEmbedded(
      Dbms dbms, UserSession session, String id, String ref, String name, String childName)
      throws Exception {
    String schema = dataManager.getMetadataSchema(dbms, id);
    // --- get metadata from session
    Element md = getMetadataFromSession(session, id);

    // --- ref is parent element so find it
    EditLib editLib = dataManager.getEditLib();
    Element el = editLib.findElement(md, ref);
    if (el == null) throw new IllegalStateException(MSG_ELEMENT_NOT_FOUND_AT_REF + ref);

    // --- locate the geonet:element and geonet:info elements and clone for
    // --- later re-use
    Element refEl = (Element) (el.getChild(Edit.RootChild.ELEMENT, Edit.NAMESPACE)).clone();
    Element info = (Element) (md.getChild(Edit.RootChild.INFO, Edit.NAMESPACE)).clone();
    md.removeChild(Edit.RootChild.INFO, Edit.NAMESPACE);

    Element child = null;
    MetadataSchema mds = dataManager.getSchema(schema);
    if (childName != null) {
      if (childName.equals("geonet:attribute")) {
        String defaultValue = "";
        List attributeDefs = el.getChildren(Edit.RootChild.ATTRIBUTE, Edit.NAMESPACE);
        for (Object a : attributeDefs) {
          Element attributeDef = (Element) a;
          if (attributeDef != null
              && attributeDef.getAttributeValue(Edit.Attribute.Attr.NAME).equals(name)) {
            Element defaultChild =
                attributeDef.getChild(Edit.Attribute.Child.DEFAULT, Edit.NAMESPACE);
            if (defaultChild != null) {
              defaultValue = defaultChild.getAttributeValue(Edit.Attribute.Attr.VALUE);
            }
          }
        }

        Pair<Namespace, String> attInfo = parseAttributeName(name, ":", id, md, dbms, editLib);
        // --- Add new attribute with default value
        el.setAttribute(new Attribute(attInfo.two(), defaultValue, attInfo.one()));

        // TODO : add attribute should be false and del true after adding an attribute
        child = el;
      } else {
        // --- normal element
        child = editLib.addElement(schema, el, name);
        if (!childName.equals("")) {
          // --- or element
          String uChildName = editLib.getUnqualifiedName(childName);
          String prefix = editLib.getPrefix(childName);
          String ns = editLib.getNamespace(childName, md, mds);
          if (prefix.equals("")) {
            prefix = editLib.getPrefix(el.getName());
            ns = editLib.getNamespace(el.getName(), md, mds);
          }
          Element orChild = new Element(uChildName, prefix, ns);
          child.addContent(orChild);

          // --- add mandatory sub-tags
          editLib.fillElement(schema, child, orChild);
        }
      }
    } else {
      child = editLib.addElement(schema, el, name);
    }
    // --- now enumerate the new child (if not a simple attribute)
    if (childName == null || !childName.equals("geonet:attribute")) {
      // --- now add the geonet:element back again to keep ref number
      el.addContent(refEl);

      int iRef = editLib.findMaximumRef(md);
      editLib.expandElements(schema, child);
      editLib.enumerateTreeStartingAt(child, iRef + 1, Integer.parseInt(ref));

      // --- add editing info to everything from the parent down
      editLib.expandTree(mds, el);
    }
    // --- attach the info element to the child
    child.addContent(info);

    // --- attach the info element to the metadata root)
    md.addContent((Element) info.clone());

    // --- store the metadata in the session again
    setMetadataIntoSession(session, (Element) md.clone(), id);

    // Return element added
    return child;
  }
Beispiel #3
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  /**
   * TODO javadoc.
   *
   * @param dbms
   * @param id
   * @param changes
   * @param currVersion
   * @return
   * @throws Exception
   */
  private Element applyChanges(Dbms dbms, String id, Hashtable changes, String currVersion)
      throws Exception {
    Lib.resource.checkEditPrivilege(context, id);
    Element md = xmlSerializer.select(dbms, "Metadata", id, context);

    // --- check if the metadata has been deleted
    if (md == null) {
      return null;
    }

    EditLib editLib = dataManager.getEditLib();

    String schema = dataManager.getMetadataSchema(dbms, id);
    editLib.expandElements(schema, md);
    editLib.enumerateTree(md);

    // --- check if the metadata has been modified from last time
    if (currVersion != null && !editLib.getVersion(id).equals(currVersion)) {
      return null;
    }

    // --- update elements
    for (Enumeration e = changes.keys(); e.hasMoreElements(); ) {
      String ref = ((String) e.nextElement()).trim();
      String val = ((String) changes.get(ref)).trim();
      String attr = null;

      if (updatedLocalizedTextElement(md, ref, val, editLib)) {
        continue;
      }

      int at = ref.indexOf('_');
      if (at != -1) {
        attr = ref.substring(at + 1);
        ref = ref.substring(0, at);
      }
      boolean xmlContent = false;
      if (ref.startsWith("X")) {
        ref = ref.substring(1);
        xmlContent = true;
      }
      Element el = editLib.findElement(md, ref);
      if (el == null) throw new IllegalStateException("Element not found at ref = " + ref);

      if (attr != null) {
        // The following work-around decodes any attribute name that has a COLON in it
        // The : is replaced by the word COLON in the xslt so that it can be processed
        // by the XML Serializer when an update is submitted - a better solution is
        // to modify the argument handler in Jeeves to store arguments with their name
        // as a value rather than as the element itself
        Integer indexColon = attr.indexOf("COLON");
        if (indexColon != -1) {
          String prefix = attr.substring(0, indexColon);
          String localname = attr.substring(indexColon + 5);
          String namespace =
              editLib.getNamespace(prefix + ":" + localname, md, dataManager.getSchema(schema));
          Namespace attrNS = Namespace.getNamespace(prefix, namespace);
          if (el.getAttribute(localname, attrNS) != null) {
            el.setAttribute(new Attribute(localname, val, attrNS));
          }
          // End of work-around
        } else {
          if (el.getAttribute(attr) != null) el.setAttribute(new Attribute(attr, val));
        }
      } else if (xmlContent) {
        if (Log.isDebugEnabled(Geonet.EDITOR)) Log.debug(Geonet.EDITOR, "replacing XML content");
        el.removeContent();
        val = addNamespaceToFragment(val);
        el.addContent(Xml.loadString(val, false));
      } else {
        List content = el.getContent();
        for (int i = 0; i < content.size(); i++) {
          if (content.get(i) instanceof Text) {
            el.removeContent((Text) content.get(i));
            i--;
          }
        }
        el.addContent(val);
      }
    }
    // --- remove editing info added by previous call
    editLib.removeEditingInfo(md);

    editLib.contractElements(md);
    return md;
  }