portletseventlistener.java

java 写的一个新闻发布系统

//
//                                   ____.
//                       __/\ ______|    |__/\.     _______
//            __   .____|    |       \   |    +----+       \
//    _______|  /--|    |    |    -   \  _    |    :    -   \_________
//   \\______: :---|    :    :           |    :    |         \________>
//           |__\---\_____________:______:    :____|____:_____\
//                                      /_____|
//
//                 . . . i n   j a h i a   w e   t r u s t . . .
//
//--------------------------
// PortletsEventListener
//--------------------------
// J閞鬽e B閐at 18.01.2001
//--------------------------

package org.jahia.layout;

import java.util.*;
import org.jahia.utils.*;               			// JahiaConsole
import org.jahia.exceptions.*;                      // Jahia Exceptions
import org.jahia.data.events.*;                     // EventObject
import org.jahia.services.pages.JahiaPage;
import org.jahia.data.containers.*;                     // JahiaContainers
import org.jahia.services.usermanager.*;            // JahiaUser


public class PortletsEventListener extends JahiaEventListener
{


    /***
        * triggered when Jahia adds a container
        *
        * @param        je                  the associated JahiaEvent
        *
        */
    public void containerAdded( JahiaEvent je ) {
        JahiaConsole.println("LayoutEventListener", "containerAdded called");
        PortletsPersistanceManager PM             = PortletsPersistanceManager.getInstance(false);
        JahiaContainer theObject    = (JahiaContainer) je.getObject();
        int theObjectID             = theObject.getID();
        String theContainerName = "";
        try {
            theContainerName = theObject.getDefinition().getName();
            JahiaConsole.println("LayoutEventListener", "container name=[" + theContainerName + "]");
        } catch (JahiaException e) {
            JahiaConsole.printe( "LayoutEventListener.containerAdded", e);
        }
        if (theContainerName.startsWith("PortletContentList")) {
            JahiaConsole.println("LayoutEventListener.containerAdded",
                                 "Adding portlet metadata entry...");
            int thePageID               = je.getParams().getPage().getID();
            String theTemplatesDiskPath = je.getParams().settings().getJahiaFilesTemplatesDiskPath();
            JahiaUser theUser           = (JahiaUser) je.getParams().getUser();
            String theUserName          = theUser.getUsername();

            try {
                /** @todo the problem here is that this assumes we are using a type of grid, which we might not be
                 *  doing. It is still unclear how listener fit in with the parameter we must pass to them. Loading
                 *  and storing portlet sets is also a heavy operation which needs to be optimized...
                 */
                PortletSetPersistanceManager PSPM = PortletSetPersistanceManager.getInstance(false);
                JahiaContainerDefinition containerDef = theObject.getDefinition();
                String portletGroupName = containerDef.getName();
                PortletBeanSpanningGrid portletSpanningGrid = new PortletBeanSpanningGrid( PSPM.getPortletSet(je.getParams(), je.getJahiaData(), portletGroupName) );
                portletSpanningGrid.add(new PortletBean(theObject.getID()));
                PSPM.setPortletSet(portletSpanningGrid, portletGroupName, je.getParams(), je.getJahiaData());
            } catch (JahiaException e) {
                JahiaConsole.printe("LayoutEventListener.containerAdded", e);
            }
        }
    }


    /***
        * triggered when Jahia delete a container
        *
        * @param        je                  the associated JahiaEvent
        *
        */
    public void containerDeleted( JahiaEvent je ) {
        JahiaConsole.println("LayoutEventListener", "containerDeleted called");
        PortletsPersistanceManager PM             = PortletsPersistanceManager.getInstance(false);
        JahiaContainer theObject    = (JahiaContainer) je.getObject();
        int theObjectID             = theObject.getID();
        String theContainerName = "";
        try {
            theContainerName = theObject.getDefinition().getName();
            JahiaConsole.println("LayoutEventListener", "container name=[" + theContainerName + "]");
        } catch (JahiaException e) {
            JahiaConsole.printe( "LayoutEventListener -> containerDeleted", e );
        }
        if (theContainerName.startsWith("PortletContentList")) {
            JahiaConsole.println("LayoutEventListener.containerAdded",
                                 "Adding portlet metadata entry...");
            int thePageID               = je.getParams().getPage().getID();
            String theTemplatesDiskPath = je.getParams().settings().getJahiaFilesTemplatesDiskPath();
            JahiaUser theUser           = (JahiaUser) je.getParams().getUser();
            String theUserName          = theUser.getUsername();

            try {
                PM.delPortlet( je.getParams(), je.getJahiaData(), theObject, thePageID, theUserName,
                               theTemplatesDiskPath );
            } catch (JahiaException e) {
                JahiaConsole.printe("LayoutEventListener.containerDeleted", e);
            }
        }
    }


    /***
        * triggered when Jahia adds a page
        *
        * @param        je                  the associated JahiaEvent
        *
        */
    public void pageAdded( JahiaEvent je ) {

        if ( je.getParams()!= null ){

            JahiaConsole.println("LayoutEventListener", "pageAdded called");
            PortletsPersistanceManager PM             = PortletsPersistanceManager.getInstance(false);
            JahiaPage theObject         = (JahiaPage) je.getObject();
            int theObjectID             = theObject.getID();

            String theTemplatesDiskPath = je.getParams().settings().getJahiaFilesTemplatesDiskPath();
            JahiaUser theUser           = (JahiaUser) je.getParams().getUser();
            String theUserName          = theUser.getUsername();

            try {
                PM.addPortletGroup( je.getParams(), theObjectID, theUserName, theTemplatesDiskPath );
            } catch (JahiaException e) {
                JahiaConsole.printe("LayoutEventListener.pageAdded", e);
            }
        }
    }


} // end PortletsEventListener