Exemplo n.º 1
0
  /**
   * This task adds new attributes / object classes to the specified destination file. The new
   * attributes and object classes must be originally defined in the template file.
   *
   * @param templateFile The file in which the new attribute/object definition can be read.
   * @param destination The file where we want to add the new definitions.
   * @param attributes Those attributes needed to be inserted into the new destination file.
   * @param objectClasses Those object classes needed to be inserted into the new destination file.
   * @return An integer which represents each time an attribute / object class is inserted
   *     successfully to the destination file.
   * @throws IOException If an unexpected IO error occurred while reading the entry.
   * @throws IllegalStateException Failure to find an attribute in the template schema indicates
   *     either a programming error (e.g. typo in the attribute name) or template corruption.
   *     Upgrade should stop.
   */
  static int updateSchemaFile(
      final File templateFile,
      final File destination,
      final String[] attributes,
      final String[] objectClasses)
      throws IOException, IllegalStateException {
    int changeCount = 0;
    LDIFEntryReader templateReader = null;
    LDIFEntryReader destinationReader = null;
    LDIFEntryWriter destinationWriter = null;
    File copy = null;
    try {
      templateReader = new LDIFEntryReader(new FileInputStream(templateFile));
      if (!templateReader.hasNext()) {
        // Unless template are corrupted, this should not happen.
        throw new IOException(
            ERR_UPGRADE_CORRUPTED_TEMPLATE.get(templateFile.getPath()).toString());
      }
      final Entry templateSchemaEntry = templateReader.readEntry();

      destinationReader = new LDIFEntryReader(new FileInputStream(destination));
      if (!destinationReader.hasNext()) {
        // Unless template are corrupted, this should not happen.
        throw new IOException(ERR_UPGRADE_CORRUPTED_TEMPLATE.get(destination.getPath()).toString());
      }
      final Entry destinationSchemaEntry = destinationReader.readEntry();

      if (attributes != null) {
        for (final String att : attributes) {
          final ByteString attributeType =
              getSchemaElement(templateSchemaEntry, "attributeTypes", att);
          destinationSchemaEntry.getAttribute("attributeTypes").add(attributeType);
          changeCount++;
          logger.debug(LocalizableMessage.raw(String.format("Added %s", attributeType)));
        }
      }

      if (objectClasses != null) {
        for (final String oc : objectClasses) {
          final ByteString objectClass = getSchemaElement(templateSchemaEntry, "objectClasses", oc);
          destinationSchemaEntry.getAttribute("objectClasses").add(objectClass);
          changeCount++;
          logger.trace("Added %s", objectClass);
        }
      }

      // Then writes the new schema entry.
      copy = File.createTempFile("copySchema", ".tmp", destination.getParentFile());
      final FileOutputStream fos = new FileOutputStream(copy);
      destinationWriter = new LDIFEntryWriter(fos);
      destinationWriter.setWrapColumn(79);
      // Copy comments to fos (get License and first comments only).
      writeFileHeaderComments(templateFile, destinationWriter);
      // Writes the entry after.
      destinationWriter.writeEntry(destinationSchemaEntry);
    } finally {
      // Readers and writer must be close before writing files.
      // This causes exceptions under windows OS.
      StaticUtils.close(templateReader, destinationReader, destinationWriter);
    }

    // Renames the copy to make it the new schema file.
    try {
      rename(copy, destination);
    } catch (IOException e) {
      logger.error(LocalizableMessage.raw(e.getMessage()));
      deleteRecursively(copy);
      throw e;
    }

    return changeCount;
  }
Exemplo n.º 2
0
  /**
   * Updates the config file during the upgrade process.
   *
   * @param configPath The original path to the file.
   * @param filter The filter to select entries. Only useful for modify change type.
   * @param changeType The change type which must be applied to ldif lines.
   * @param ldifLines The change record ldif lines. For ADD change type, the first line must be the
   *     dn. For DELETE change type, the first and only line must be the dn.
   * @throws IOException If an Exception occurs during the input output methods.
   * @return The changes number that have occurred.
   */
  static int updateConfigFile(
      final String configPath,
      final Filter filter,
      final ChangeOperationType changeType,
      final String... ldifLines)
      throws IOException {
    final File original = new File(configPath);
    final File copyConfig = File.createTempFile("copyConfig", ".tmp", original.getParentFile());

    int changeCount = 0;
    LDIFEntryReader entryReader = null;
    LDIFEntryWriter writer = null;
    try {
      final Schema schema = getUpgradeSchema();
      entryReader = new LDIFEntryReader(new FileInputStream(configPath)).setSchema(schema);

      writer = new LDIFEntryWriter(new FileOutputStream(copyConfig));
      writer.setWrapColumn(80);

      // Writes the header on the new file.
      writer.writeComment(INFO_CONFIG_FILE_HEADER.get());
      writer.setWrapColumn(0);

      boolean entryAlreadyExist = false;
      DN ldifDN = null;
      if (filter == null && (changeType == ADD || changeType == DELETE)) {
        // The first line should start with dn:
        ldifDN = DN.valueOf(ldifLines[0].replaceFirst("dn: ", ""));
      }
      final Filter f = filter != null ? filter : Filter.alwaysFalse();
      final Matcher matcher = f.matcher(schema);
      while (entryReader.hasNext()) {
        Entry entry = entryReader.readEntry();
        final DN entryDN = entry.getName();
        // Searching for the related entries
        if (changeType == MODIFY && matcher.matches(entry) == ConditionResult.TRUE) {
          try {
            final ModifyRequest mr =
                Requests.newModifyRequest(readLDIFLines(entryDN, changeType, ldifLines));
            entry = Entries.modifyEntryPermissive(entry, mr.getModifications());
            changeCount++;
            logger.debug(
                LocalizableMessage.raw("The following entry has been modified : %s", entryDN));
          } catch (Exception ex) {
            logger.error(LocalizableMessage.raw(ex.getMessage()));
          }
        }

        if (entryDN.equals(ldifDN)) {
          logger.debug(LocalizableMessage.raw("Entry %s found", entryDN));
          entryAlreadyExist = true;

          if (changeType == DELETE) {
            entry = null;
            changeCount++;
            logger.debug(
                LocalizableMessage.raw("The following entry has been deleted : %s", entryDN));
          }
        }

        if (entry != null) {
          writer.writeEntry(entry);
        }
      }

      if (changeType == ADD && !entryAlreadyExist) {
        final AddRequest ar = Requests.newAddRequest(ldifLines);
        writer.writeEntry(ar);
        logger.debug(
            LocalizableMessage.raw(
                "Entry successfully added %s in %s", ldifDN, original.getAbsolutePath()));
        changeCount++;
      }
    } catch (Exception ex) {
      throw new IOException(ex.getMessage());
    } finally {
      // The reader and writer must be close before renaming files.
      // Otherwise it causes exceptions under windows OS.
      StaticUtils.close(entryReader, writer);
    }

    try {
      // Renaming the file, overwriting previous one.
      rename(copyConfig, new File(configPath));
    } catch (IOException e) {
      logger.error(LocalizableMessage.raw(e.getMessage()));
      deleteRecursively(original);
      throw e;
    }

    return changeCount;
  }