portletsetpersistancemanager.java

java 写的一个新闻发布系统

package org.jahia.layout;

/**
 * Title:        PortletSet persistance manager, store and retrieve PortletSet
 * objects to/from persistant storage
 * Description:  This object uses the PortletsPersistanceStorage to do most of
 * it's job.
 * Copyright:    Copyright (c) 2002
 * Company:     Jahia Ltd
 * @author Serge Huber
 * @version 1.0
 */

import java.util.Enumeration;

import org.jahia.exceptions.JahiaException;
import org.jahia.params.ParamBean;
import org.jahia.utils.JahiaConsole;
import org.jahia.data.JahiaData;

public class PortletSetPersistanceManager {

    private boolean personalizationActivated;
    private static PortletSetPersistanceManager sharingManager = null;
    private static PortletSetPersistanceManager personalizedManager = null;

    private PortletSetPersistanceManager(boolean personalizationActivated) {
        this.personalizationActivated = personalizationActivated;
    }

    public static synchronized PortletSetPersistanceManager getInstance(boolean personalizationActivated) {
        if (personalizationActivated) {
            if (personalizedManager == null) {
                personalizedManager =
                    new PortletSetPersistanceManager(personalizationActivated);
            }
            return personalizedManager;
        } else {
            if (sharingManager == null) {
                sharingManager = new PortletSetPersistanceManager(personalizationActivated);
            }
            return sharingManager;
        }
    }

    public PortletBeanSet getPortletSet(ParamBean jParams,
                                        JahiaData jData,
                                        String portletGroupName) {
        JahiaConsole.println("PortletSetPersistanceManager.getPortletSet",
                             "Retrieving portlet set for portletGroup=[" + portletGroupName + "]");
        int pageID = jParams.getPageID();
        PortletsPersistanceManager portletsManager =
            PortletsPersistanceManager.getInstance(personalizationActivated);
        Enumeration portletEnum = portletsManager.getPortlets(jParams,
                                                              jData,
                                                              jParams.getPageID(),
                                                              portletGroupName,
                                                              jParams.getUser().getUsername(),
                                                              jParams.settings().getJahiaTemplatesDiskPath());
        PortletBeanSet portletSet = new PortletBeanSet();
        int count = 0;
        while (portletEnum.hasMoreElements()) {
            PortletBean portlet = (PortletBean) portletEnum.nextElement();
            portletSet.add(portlet);
            count++;
        }
        JahiaConsole.println("PortletSetPersistanceManager.getPortletSet",
                             "Found " + Integer.toString(count) + " portlets...");
        return portletSet;
    }

    public void setPortletSet(PortletBeanSet portletSet,
                              String portletGroupName,
                              ParamBean jParams,
                              JahiaData jData) throws JahiaException {
        Enumeration portletEnum = portletSet.elements();
        PortletsPersistanceManager portletsManager =
            PortletsPersistanceManager.getInstance(personalizationActivated);
        while (portletEnum.hasMoreElements()) {
            PortletBean portlet = (PortletBean) portletEnum.nextElement();
            if (portlet.isModified()) {
                portletsManager.setPortlet(jParams,
                                           jData,
                                           portlet,
                                           portletGroupName,
                                           jParams.getPageID(),
                                           jParams.getUser().getUsername(),
                                           jParams.settings().getJahiaTemplatesDiskPath());
            } else {
                /*
                JahiaConsole.println("PortletSetPersistanceManager.setPortletSet",
                                     "No modifications in portlet " + portlet.getPortletID() + ", no need to save...");
                */
            }
        }
    }

    public void removePortletSet(PortletBeanSet portletSet,
                                 String portletGroupName,
                                 ParamBean jParams) {
    }

}