protected void init(
      HttpServletRequest request,
      Portlet portlet,
      InvokerPortlet invokerPortlet,
      PortletContext portletContext,
      WindowState windowState,
      PortletMode portletMode,
      PortletPreferences preferences,
      long plid) {

    ThemeDisplay themeDisplay = (ThemeDisplay) request.getAttribute(WebKeys.THEME_DISPLAY);

    _portlet = portlet;
    _portletName = portlet.getPortletId();
    _publicRenderParameters = PublicRenderParametersPool.get(request, plid);

    String portletNamespace = PortalUtil.getPortletNamespace(_portletName);

    boolean portalSessionShared = false;

    PortletApp portletApp = portlet.getPortletApp();

    if (portletApp.isWARFile() && !portlet.isPrivateSessionAttributes()) {
      portalSessionShared = true;
    }

    request = new SharedSessionServletRequest(request, portalSessionShared);

    DynamicServletRequest dynamicRequest = null;

    if (portlet.isPrivateRequestAttributes()) {
      dynamicRequest =
          new NamespaceServletRequest(request, portletNamespace, portletNamespace, false);
    } else {
      dynamicRequest = new DynamicServletRequest(request, false);
    }

    boolean portletFocus = false;

    String ppid = ParamUtil.getString(request, "p_p_id");

    boolean windowStateRestoreCurrentView = ParamUtil.getBoolean(request, "p_p_state_rcv");

    if (_portletName.equals(ppid)
        && !(windowStateRestoreCurrentView && portlet.isRestoreCurrentView())) {

      // Request was targeted to this portlet

      if (themeDisplay.isLifecycleRender() || themeDisplay.isLifecycleResource()) {

        // Request was triggered by a render or resource URL

        portletFocus = true;
      } else if (themeDisplay.isLifecycleAction()) {
        _triggeredByActionURL = true;

        if (getLifecycle().equals(PortletRequest.ACTION_PHASE)) {

          // Request was triggered by an action URL and is being
          // processed by com.liferay.portlet.ActionRequestImpl

          portletFocus = true;
        }
      }
    }

    Map<String, String[]> renderParameters = RenderParametersPool.get(request, plid, _portletName);

    if (portletFocus) {
      renderParameters = new HashMap<String, String[]>();

      if (getLifecycle().equals(PortletRequest.RENDER_PHASE)
          && !LiferayWindowState.isExclusive(request)
          && !LiferayWindowState.isPopUp(request)) {

        RenderParametersPool.put(request, plid, _portletName, renderParameters);
      }

      Map<String, String[]> parameters = request.getParameterMap();

      for (Map.Entry<String, String[]> entry : parameters.entrySet()) {
        String name = entry.getKey();

        if (isInvalidParameter(name)) {
          continue;
        }

        String[] values = entry.getValue();

        if (themeDisplay.isLifecycleRender()) {
          renderParameters.put(name, values);
        }

        if (values == null) {
          continue;
        }

        name = removePortletNamespace(invokerPortlet, portletNamespace, name);

        dynamicRequest.setParameterValues(name, values);
      }
    } else {
      for (Map.Entry<String, String[]> entry : renderParameters.entrySet()) {

        String name = entry.getKey();
        String[] values = entry.getValue();

        name = removePortletNamespace(invokerPortlet, portletNamespace, name);

        dynamicRequest.setParameterValues(name, values);
      }
    }

    mergePublicRenderParameters(dynamicRequest, preferences, plid);

    _request = dynamicRequest;
    _originalRequest = request;
    _wapTheme = BrowserSnifferUtil.isWap(_request);
    _portlet = portlet;
    _portalContext = new PortalContextImpl();
    _portletContext = portletContext;
    _windowState = windowState;
    _portletMode = portletMode;
    _preferences = preferences;
    _portalSessionId = _request.getRequestedSessionId();
    _session =
        new PortletSessionImpl(_request, _portletName, _portletContext, _portalSessionId, plid);

    String remoteUser = request.getRemoteUser();

    String userPrincipalStrategy = portlet.getUserPrincipalStrategy();

    if (userPrincipalStrategy.equals(PortletConstants.USER_PRINCIPAL_STRATEGY_SCREEN_NAME)) {

      try {
        User user = PortalUtil.getUser(request);

        if (user != null) {
          _remoteUser = user.getScreenName();
          _remoteUserId = user.getUserId();
          _userPrincipal = new ProtectedPrincipal(_remoteUser);
        }
      } catch (Exception e) {
        _log.error(e);
      }
    } else {
      long userId = PortalUtil.getUserId(request);

      if ((userId > 0) && (remoteUser == null)) {
        _remoteUser = String.valueOf(userId);
        _remoteUserId = userId;
        _userPrincipal = new ProtectedPrincipal(_remoteUser);
      } else {
        _remoteUser = remoteUser;
        _remoteUserId = GetterUtil.getLong(remoteUser);
        _userPrincipal = request.getUserPrincipal();
      }
    }

    _locale = themeDisplay.getLocale();
    _plid = plid;
  }
 public Map<String, String[]> getRenderParameters() {
   return RenderParametersPool.get(_request, _plid, _portletName);
 }