Exemple #1
0
  /**
   * This method finds all the pages which have anything to do with the fromPage and change any
   * referrers it can figure out in that page.
   *
   * @param context WikiContext in which we operate
   * @param fromPage The old page
   * @param toPage The new page
   */
  @SuppressWarnings("unchecked")
  private void updateReferrers(
      WikiContext context, WikiPage fromPage, WikiPage toPage, Set<String> referrers) {
    WikiEngine engine = context.getEngine();

    if (referrers.isEmpty()) return; // No referrers

    for (String pageName : referrers) {
      //  In case the page was just changed from under us, let's do this
      //  small kludge.
      if (pageName.equals(fromPage.getName())) {
        pageName = toPage.getName();
      }

      WikiPage p = engine.getPage(pageName);

      String sourceText = engine.getPureText(p);

      String newText =
          replaceReferrerString(context, sourceText, fromPage.getName(), toPage.getName());

      if (m_camelCase)
        newText = replaceCCReferrerString(context, newText, fromPage.getName(), toPage.getName());

      if (!sourceText.equals(newText)) {
        p.setAttribute(WikiPage.CHANGENOTE, fromPage.getName() + " ==> " + toPage.getName());
        p.setAuthor(context.getCurrentUser().getName());

        try {
          engine.getPageManager().putPageText(p, newText);
          engine.updateReferences(p);
        } catch (ProviderException e) {
          //
          //  We fail with an error, but we will try to continue to rename
          //  other referrers as well.
          //
          log.error("Unable to perform rename.", e);
        }
      }
    }
  }
  /**
   * Stores an attachment directly from a stream. If the attachment did not exist previously, this
   * method will create it. If it did exist, it stores a new version.
   *
   * @param att Attachment to store this under.
   * @param in InputStream from which the attachment contents will be read.
   * @throws IOException If writing the attachment failed.
   * @throws ProviderException If something else went wrong.
   */
  public void storeAttachment(Attachment att, InputStream in)
      throws IOException, ProviderException {
    if (m_provider == null) {
      return;
    }

    //
    //  Checks if the actual, real page exists without any modifications
    //  or aliases.  We cannot store an attachment to a non-existant page.
    //
    if (!m_engine.getPageManager().pageExists(att.getParentName())) {
      // the caller should catch the exception and use the exception text as an i18n key
      throw new ProviderException("attach.parent.not.exist");
    }

    m_provider.putAttachmentData(att, in);

    m_engine.getReferenceManager().updateReferences(att.getName(), new java.util.Vector());

    WikiPage parent = new WikiPage(m_engine, att.getParentName());
    m_engine.updateReferences(parent);

    m_engine.getSearchManager().reindexPage(att);
  }
Exemple #3
0
  /**
   * Renames a page.
   *
   * @param context The current context.
   * @param renameFrom The name from which to rename.
   * @param renameTo The new name.
   * @param changeReferrers If true, also changes all the referrers.
   * @return The final new name (in case it had to be modified)
   * @throws WikiException If the page cannot be renamed.
   */
  public String renamePage(
      WikiContext context, String renameFrom, String renameTo, boolean changeReferrers)
      throws WikiException {
    //
    //  Sanity checks first
    //
    if (renameFrom == null || renameFrom.length() == 0) {
      throw new WikiException("From name may not be null or empty");
    }
    if (renameTo == null || renameTo.length() == 0) {
      throw new WikiException("To name may not be null or empty");
    }

    //
    //  Clean up the "to" -name so that it does not contain anything illegal
    //

    renameTo = MarkupParser.cleanLink(renameTo.trim());

    if (renameTo.equals(renameFrom)) {
      throw new WikiException("You cannot rename the page to itself");
    }

    //
    //  Preconditions: "from" page must exist, and "to" page must not yet exist.
    //
    WikiEngine engine = context.getEngine();
    WikiPage fromPage = engine.getPage(renameFrom);

    if (fromPage == null) {
      throw new WikiException("No such page " + renameFrom);
    }

    WikiPage toPage = engine.getPage(renameTo);

    if (toPage != null) {
      throw new WikiException("Page already exists " + renameTo);
    }

    //
    //  Options
    //

    m_camelCase =
        TextUtil.getBooleanProperty(
            engine.getWikiProperties(), JSPWikiMarkupParser.PROP_CAMELCASELINKS, m_camelCase);

    Set<String> referrers = getReferencesToChange(fromPage, engine);

    //
    //  Do the actual rename by changing from the frompage to the topage, including
    //  all of the attachments
    //

    engine.getPageManager().getProvider().movePage(renameFrom, renameTo);

    if (engine.getAttachmentManager().attachmentsEnabled()) {
      engine
          .getAttachmentManager()
          .getCurrentProvider()
          .moveAttachmentsForPage(renameFrom, renameTo);
    }

    //
    //  Add a comment to the page notifying what changed.  This adds a new revision
    //  to the repo with no actual change.
    //

    toPage = engine.getPage(renameTo);

    if (toPage == null)
      throw new InternalWikiException(
          "Rename seems to have failed for some strange reason - please check logs!");

    toPage.setAttribute(WikiPage.CHANGENOTE, fromPage.getName() + " ==> " + toPage.getName());
    toPage.setAuthor(context.getCurrentUser().getName());

    engine.getPageManager().putPageText(toPage, engine.getPureText(toPage));

    //
    //  Update the references
    //

    engine.getReferenceManager().pageRemoved(fromPage);
    engine.updateReferences(toPage);

    //
    //  Update referrers
    //
    if (changeReferrers) {
      updateReferrers(context, fromPage, toPage, referrers);
    }

    //
    //  re-index the page
    //
    engine.getSearchManager().reindexPage(toPage);

    Collection<Attachment> attachments = engine.getAttachmentManager().listAttachments(toPage);
    for (Attachment att : attachments) {
      engine.getSearchManager().reindexPage(att);
    }

    //
    //  Done, return the new name.
    //
    return renameTo;
  }