portletsbean.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 . . .
//
//--------------------------
// PortletsBean
//--------------------------
// Jerome Bedat 18.12.2000
//--------------------------
/**
 * @todo: This class should probably be renamed to PortletsManager
 */

package jahiatemplates.org.jahia.portlets_api;

import java.io.*;
import java.util.*;
import org.jahia.utils.*;               			// JahiaConsole
import org.jahia.exceptions.JahiaException;         // Jahia Exceptions


import org.jahia.data.containers.JahiaContainer;
import org.jahia.services.containers.JahiaContainersService;

import org.jahia.data.fields.JahiaField;
import org.jahia.services.fields.JahiaFieldService;

import org.jahia.services.acl.JahiaBaseACL;
import org.jahia.services.acl.JahiaACLEntry;
import org.jahia.services.acl.ACLNotFoundException;

import org.jahia.services.usermanager.JahiaGroup;
import org.jahia.services.usermanager.JahiaUser;
import org.jahia.services.usermanager.JahiaGroupManagerService;

import org.jahia.registries.ServicesRegistry;

public class PortletsBean
{

    private static PortletsBean theObject = null;
    private static String theDefaultUser = "guest";
    private DesktopObj  theDesktop;
    private PortletObj  thePortlet;
    private SkinObj     theSkin;
    private Vector      thePortletList;
    private int         theColumnCount;


    /**
     * PortletsBean
     *
     * @author Jerome Bedat
     *
     */
    private PortletsBean()
    {
        JahiaConsole.println( "PortletsBean", "***** Starting the PortletBean *****" );
    }


    /**
     * Retrieves an instance of the PortletsBean
     *
     * @author Jerome Bedat
     *
     */
    public static synchronized PortletsBean getInstance()
    {
        if (theObject == null) {
            theObject = new PortletsBean();
        }
        return theObject;
    } // end getInstance



    /**
     * Retrieves a list of portlets for the specified page
     *
     * @author Jerome Bedat
     *
     */
    public Enumeration getPortlets(int thePageID, String theUserName, String uRLtoTemplatesDir) {
        try {
            String theFile = theUserName + ".xml";
            String theDefaultFile = theDefaultUser + ".xml";
            XMLPortlets XMLFile = new XMLPortlets(uRLtoTemplatesDir, theFile, theDefaultFile, thePageID);
            thePortletList = XMLFile.getPortletList();
        } catch (JahiaException e) {
            JahiaConsole.println( "PortletsBean -> loadPortlet", e.toString() );
        }
        return thePortletList.elements();
    } // end getPortlets


    /**
     * Retrieves a list of portlets for the specified page and column
     *
     * @author Jerome Bedat
     *
     */
    public Enumeration getPortletsFromColumn(int theColumn, int thePageID, String theUserName, String uRLtoTemplatesDir) {
        try {
            String theFile = theUserName + ".xml";
            String theDefaultFile = theDefaultUser + ".xml";
            XMLPortlets XMLFile = new XMLPortlets(uRLtoTemplatesDir, theFile, theDefaultFile, thePageID);
            thePortletList = XMLFile.getPortletListFromColumn(theColumn);
        } catch (JahiaException e) {
            JahiaConsole.println( "PortletsBean -> loadPortlet", e.toString() );
        }
        return thePortletList.elements();
    } // end getPortletsFromColumn


    /**
     * Retrieves a portlet for the specified page and portletid
     *
     * @author Jerome Bedat
     *
     */
    public PortletObj getPortletByID(int thePortletID, int thePageID, String theUserName, String uRLtoTemplatesDir) {
        try {
            String theFile = theUserName + ".xml";
            String theDefaultFile = theDefaultUser + ".xml";
            XMLPortlets XMLFile = new XMLPortlets(uRLtoTemplatesDir, theFile, theDefaultFile, thePageID);
            thePortlet = XMLFile.getPortlet(thePortletID);
        } catch (JahiaException e) {
            JahiaConsole.println( "PortletsBean -> loadPortlet", e.toString() );
        }
        return thePortlet;
    } // end getPortletByID



    /**
     * Add new portlet in the specified page
     *
     * @author Jerome Bedat
     *
     */
    public void addPortlet(int theJahiaEventObjectID, int theJahiaEventPageID, String theJahiaEventUserName, String uRLtoTemplatesDir) {
        try {
            String theFile = theJahiaEventUserName + ".xml";
            String theDefaultFile = theDefaultUser + ".xml";
            XMLPortlets XMLFile = new XMLPortlets(uRLtoTemplatesDir, theFile, theDefaultFile, theJahiaEventPageID);
            XMLFile.addPortlet(theJahiaEventObjectID);
        } catch (JahiaException e) {
            JahiaConsole.println( "PortletsBean -> addPortlet", e.toString() );
        }
    } // end addPortlet


    /**
     * Update portlet settings for the specified portletid
     *
     * @author Jerome Bedat
     *
     */
    public void setPortlet(PortletObj thePortlet, int thePageID, String theUserName, String uRLtoTemplatesDir) {
        try {
            String theFile = theUserName + ".xml";
            String theDefaultFile = theDefaultUser + ".xml";
            XMLPortlets XMLFile = new XMLPortlets(uRLtoTemplatesDir, theFile, theDefaultFile, thePageID);
            XMLFile.updatePortlet(thePortlet);
        } catch (JahiaException e) {
            JahiaConsole.println( "PortletsBean -> setPortlet", e.toString() );
        }
    } // end setPortlet


    /**
     * Delete a Portlet
     *
     * @author Jerome Bedat
     *
     */
    public void delPortlet(int theJahiaEventObjectID, int theJahiaEventPageID, String theJahiaEventUserName, String uRLtoTemplatesDir) {
        try {
            String theFile = theJahiaEventUserName + ".xml";
            String theDefaultFile = theDefaultUser + ".xml";
            XMLPortlets XMLFile = new XMLPortlets(uRLtoTemplatesDir, theFile, theDefaultFile, theJahiaEventPageID);
            XMLFile.deletePortlet(theJahiaEventObjectID);
        } catch (JahiaException e) {
            JahiaConsole.println( "PortletsBean -> addPortlet", e.toString() );
        }
    } // end delPortlet


    /**
     * Add new portlet group (add new page)
     *
     * @author Jerome Bedat
     *
     */
    public void addPortletGroup(int theJahiaEventObjectID, String theJahiaEventUserName, String uRLtoTemplatesDir) {
        try {
            String theFile = theJahiaEventUserName + ".xml";
            String theDefaultFile = theDefaultUser + ".xml";
            XMLPortlets XMLFile = new XMLPortlets(uRLtoTemplatesDir, theFile, theDefaultFile, theJahiaEventObjectID);
            XMLFile.addPortletGroup();
        } catch (JahiaException e) {
            JahiaConsole.println( "PortletsBean -> addPortletGroup", e.toString() );
        }
    } // end addPortletGroup


    /**
     * Retrieves a column count for the specified page
     *
     * @author Jerome Bedat
     *
     */
    public int getPortletsColumnCount(int thePageID, String theUserName, String uRLtoTemplatesDir) {
        try {
            String theFile = theUserName + ".xml";
            String theDefaultFile = theDefaultUser + ".xml";
            XMLPortlets XMLFile = new XMLPortlets(uRLtoTemplatesDir, theFile, theDefaultFile, thePageID);
            theColumnCount = XMLFile.getColumnCount();
        } catch (JahiaException e) {
            JahiaConsole.println( "PortletsBean -> getPortletsColumnCount", e.toString() );
        }
        return theColumnCount;
    } // end getPortletsColumnCount


    /**
     * Move the portlet to the right column