Liferay-Blog

After restarting your Server you might get a:

ClassNotFoundException: org.apache.jsp.html.portlet.dockbar.view_jsp

This is a known issue in Liferay 6.2. The solution is quite simple.

Create a empty file view_user_account.portal.jspf in /webapps/ROOT/html/portlet/dockbar/.

I just tried to show an animated loading icon (like a spinner or progress bar) while my portlet was loading.

 A very simple way is to use the css-class "loading-animation", which is delivered with Alloy-Ui, I guess.

 Adding a single div:
<div class="loading-animation" />

 You will get an animated logo like this:

import com.liferay.portal.kernel.util.HttpUtil; 
import com.liferay.portal.kernel.util.ParamUtil; 
import com.liferay.portal.util.PortalUtil;
 
// delivers url-path including parameters
String currentUrlPathWithParamters = PortalUtil.getCurrentURL( request );
// --> Example: /group/guest/home?foo=test

// delivers url-path without parameters
String currentUrlPath = HttpUtil.getPath(currentUrlPathWithParamters);
// --> Example: /group/guest/home

// delivers complete url
String currentUrl = PortalUtil.getPortalURL( request ) + currentUrlPath;
// --> Example: http://localhost:8080/group/guest/home

// adding parameters to url
String urlWithCustomParameter= HttpUtil.addParameter(currentUrl,"foo", "faa");
// --> Example: http://localhost:8080/group/guest/home?foo=faa

After starting a clean liferay instance, you will see the portal-setup-wizard helping you to configure your portal. It provides help concerning your database-connection, default user,...

After you finished configuration portal-setup-wizard will not show up again. To enable portal-setup-wizard again, you can set the following property inside portal-setup-wizard.properties:

portal.setup.wizard.enabled=true

Using Hooks you can:

• provide a portal configuration (portal-ext.properties)
• define new or modify existing language key (language.properties)
• modify portal JSPs
• define servlet filters
• implement post indexers
• override Liferay-Services (especially by implementing a ServiceWrapper, like for example UserServiceWrapper)

import javax.portlet.PortletPreferences;
import com.liferay.portlet.PortletPreferencesFactoryUtil;

PortletPreferences portletSetup = PortletPreferencesFactoryUtil.getLayoutPortletSetup( layout , portletId); 
String foo = portletSetup.getValue("foo", "defaultValue");

To get all portlets placed on a page (layout) you can use the following lines of code:

import com.liferay.portal.model.LayoutTypePortlet;
import com.liferay.portal.model.Portlet;

LayoutTypePortlet layoutTypePortlet = (LayoutTypePortlet) l.getLayoutType();
List< Portlet > portlets = layoutTypePortlet.getAllPortlets();