示例#1
0
  /**
   * 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);
  }
  /**
   * Performs a full Lucene reindex, if necessary.
   *
   * @throws IOException If there's a problem during indexing
   */
  protected void doFullLuceneReindex() throws IOException {
    File dir = new File(m_luceneDirectory);

    String[] filelist = dir.list();

    if (filelist == null) {
      throw new IOException(
          "Invalid Lucene directory: cannot produce listing: " + dir.getAbsolutePath());
    }

    try {
      if (filelist.length == 0) {
        //
        //  No files? Reindex!
        //
        Date start = new Date();
        IndexWriter writer = null;

        log.info("Starting Lucene reindexing, this can take a couple minutes...");

        Directory luceneDir = new SimpleFSDirectory(dir, null);

        try {
          writer = getIndexWriter(luceneDir);
          Collection allPages = m_engine.getPageManager().getAllPages();

          for (Iterator iterator = allPages.iterator(); iterator.hasNext(); ) {
            WikiPage page = (WikiPage) iterator.next();

            try {
              String text =
                  m_engine
                      .getPageManager()
                      .getPageText(page.getName(), WikiProvider.LATEST_VERSION);
              luceneIndexPage(page, text, writer);
            } catch (IOException e) {
              log.warn("Unable to index page " + page.getName() + ", continuing to next ", e);
            }
          }

          Collection allAttachments = m_engine.getAttachmentManager().getAllAttachments();
          for (Iterator iterator = allAttachments.iterator(); iterator.hasNext(); ) {
            Attachment att = (Attachment) iterator.next();

            try {
              String text = getAttachmentContent(att.getName(), WikiProvider.LATEST_VERSION);
              luceneIndexPage(att, text, writer);
            } catch (IOException e) {
              log.warn("Unable to index attachment " + att.getName() + ", continuing to next", e);
            }
          }

        } finally {
          close(writer);
        }

        Date end = new Date();
        log.info(
            "Full Lucene index finished in "
                + (end.getTime() - start.getTime())
                + " milliseconds.");
      } else {
        log.info("Files found in Lucene directory, not reindexing.");
      }
    } catch (NoClassDefFoundError e) {
      log.info("Lucene libraries do not exist - not using Lucene.");
    } catch (IOException e) {
      log.error("Problem while creating Lucene index - not using Lucene.", e);
    } catch (ProviderException e) {
      log.error("Problem reading pages while creating Lucene index (JSPWiki won't start.)", e);
      throw new IllegalArgumentException("unable to create Lucene index");
    } catch (Exception e) {
      log.error("Unable to start lucene", e);
    }
  }