private synchronized void doConfigClearspace() throws UnauthorizedException {

    Log.debug("Starting Clearspace configuration.");

    List<String> bindInterfaces = getServerInterfaces();
    if (bindInterfaces.size() == 0) {
      // We aren't up and running enough to tell Clearspace what interfaces to bind to.
      Log.debug("No bind interfaces found to config Clearspace");
      throw new IllegalStateException("There are no binding interfaces.");
    }

    try {

      XMPPServerInfo serverInfo = XMPPServer.getInstance().getServerInfo();

      String path = IM_URL_PREFIX + "configureComponent/";

      // Creates the XML with the data
      Document groupDoc = DocumentHelper.createDocument();
      Element rootE = groupDoc.addElement("configureComponent");
      Element domainE = rootE.addElement("domain");
      domainE.setText(serverInfo.getXMPPDomain());
      for (String bindInterface : bindInterfaces) {
        Element hostsE = rootE.addElement("hosts");
        hostsE.setText(bindInterface);
      }
      Element portE = rootE.addElement("port");
      portE.setText(String.valueOf(ExternalComponentManager.getServicePort()));

      Log.debug(
          "Trying to configure Clearspace with: Domain: "
              + serverInfo.getXMPPDomain()
              + ", hosts: "
              + bindInterfaces.toString()
              + ", port: "
              + port);

      executeRequest(POST, path, rootE.asXML());

      // Done, Clearspace was configured correctly, clear the task
      Log.debug("Clearspace was configured, stopping the task.");
      TaskEngine.getInstance().cancelScheduledTask(configClearspaceTask);
      configClearspaceTask = null;

    } catch (UnauthorizedException ue) {
      throw ue;
    } catch (Exception e) {
      // It is not supported exception, wrap it into an UnsupportedOperationException
      throw new UnsupportedOperationException("Unexpected error", e);
    }
  }
  /**
   * Sets the shared secret for the Clearspace service we're connecting to.
   *
   * @param sharedSecret the password configured in Clearspace to authenticate Openfire.
   */
  public void setSharedSecret(String sharedSecret) {
    // Set new password for external component
    ExternalComponentConfiguration configuration =
        new ExternalComponentConfiguration(
            "clearspace", true, ExternalComponentConfiguration.Permission.allowed, sharedSecret);
    try {
      ExternalComponentManager.allowAccess(configuration);
    } catch (ModificationNotAllowedException e) {
      Log.warn("Failed to configure password for Clearspace", e);
    }

    // After updating the component information we can update the field, but not before.
    // If it is done before, OF won't be able to execute the updateSharedsecret webservice
    // since it would try with the new password.
    this.sharedSecret = sharedSecret;
    properties.put("clearspace.sharedSecret", sharedSecret);
  }
  public void start() throws IllegalStateException {
    super.start();
    if (isEnabled()) {
      // Before starting up service make sure there is a default secret
      if (ExternalComponentManager.getDefaultSecret() == null
          || "".equals(ExternalComponentManager.getDefaultSecret())) {
        try {
          ExternalComponentManager.setDefaultSecret(StringUtils.randomString(10));
        } catch (ModificationNotAllowedException e) {
          Log.warn("Failed to set a default secret to external component service", e);
        }
      }
      // Make sure that external component service is enabled
      if (!ExternalComponentManager.isServiceEnabled()) {
        try {
          ExternalComponentManager.setServiceEnabled(true);
        } catch (ModificationNotAllowedException e) {
          Log.warn("Failed to start external component service", e);
        }
      }
      // Listen for changes to external component settings
      ExternalComponentManager.addListener(this);
      // Listen for registration of new components
      InternalComponentManager.getInstance().addListener(this);
      // Listen for changes in certificates
      CertificateManager.addListener(this);
      // Listen for property changes
      PropertyEventDispatcher.addListener(this);
      // Set up custom clearspace MUC service
      // Create service if it doesn't exist, load if it does.
      MultiUserChatServiceImpl muc =
          (MultiUserChatServiceImpl)
              XMPPServer.getInstance()
                  .getMultiUserChatManager()
                  .getMultiUserChatService(MUC_SUBDOMAIN);
      if (muc == null) {
        try {
          muc =
              XMPPServer.getInstance()
                  .getMultiUserChatManager()
                  .createMultiUserChatService(MUC_SUBDOMAIN, MUC_DESCRIPTION, true);
        } catch (AlreadyExistsException e) {
          Log.error(
              "ClearspaceManager: Found no "
                  + MUC_SUBDOMAIN
                  + " service, but got already exists when creation attempted?  Service probably not started!");
        }
      }
      if (muc != null) {
        // Set up special delegate for Clearspace MUC service
        muc.setMUCDelegate(new ClearspaceMUCEventDelegate());
        // Set up additional features for Clearspace MUC service
        muc.addExtraFeature("clearspace:service");
        // Set up additional identity of conference service to Clearspace MUC service
        muc.addExtraIdentity("conference", "Clearspace Chat Service", "text");
      }

      // Starts the clearspace configuration task
      startClearspaceConfig();

      // Starts the Clearspace MUC transcript manager
      mucTranscriptManager.start();
    }
  }