com.socialsite.BasePanel.java Source code

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Here is the source code for com.socialsite.BasePanel.java

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/**
 *     Copyright SocialSite (C) 2009
 *
 *     This program is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     This program is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.socialsite;

import org.apache.wicket.Component;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.authorization.strategies.role.Roles;
import org.apache.wicket.markup.html.IHeaderContributor;
import org.apache.wicket.markup.html.IHeaderResponse;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.IModel;
import org.apache.wicket.spring.injection.annot.SpringBean;

import com.socialsite.dao.UserDao;
import com.socialsite.persistence.User;

/**
 * BasePanel for the socialsite
 * 
 * @author Ananth
 */
public class BasePanel extends Panel implements IHeaderContributor {

    private static final long serialVersionUID = 1L;

    /** spring dao to access the user object */
    @SpringBean(name = "userDao")
    private UserDao<User> userDao;

    /**
     * constructor
     * 
     * @param id
     *            id
     */
    public BasePanel(final String id) {
        super(id);
    }

    /**
     * constructor
     * 
     * @param id
     *            id
     * @param model
     *            model
     */
    public BasePanel(final String id, final IModel<?> model) {
        super(id, model);
    }

    /**
     * fires a event with the collection of all the updated dom elements after
     * the wicket ajax response. To subscribe the event call the
     * <code>SocialSite.Ajax.registerPostAjax</code>. Your callback function
     * will be called with a jQuery Wrapped set of all the update dom as the
     * first argument.
     * 
     * NOTE: call this only once after all the components are added to the
     * target
     * 
     * 
     * @param target
     *            ajax target
     */
    public void firePostAjaxUpdateEvent(final AjaxRequestTarget target) {
        final StringBuffer script = new StringBuffer(" SocialSite.Ajax.handle([");
        for (final Component component : target.getComponents()) {
            script.append("\"" + component.getMarkupId() + "\",");
        }
        script.append("])");

        target.getHeaderResponse().renderOnDomReadyJavascript(script.toString());
    }

    /**
     * helper to get the roles of the session user
     * 
     * @return roles of the session user
     */
    public Roles getRoles() {
        return SocialSiteSession.get().getSessionUser().getRoles();
    }

    /**
     * gets the domain model object of the the user in the session
     * 
     * @return user
     */
    public User getSessionUser() {
        return userDao.load(getSessionUserId());
    }

    /**
     * gets the id of the session user
     * 
     * @return id of the session user
     */
    public long getSessionUserId() {
        return SocialSiteSession.get().getSessionUser().getId();
    }

    /**
     * gets the domain model object of the the user (current page)
     * 
     * @return user
     */
    public User getUser() {
        return userDao.load(getUserId());
    }

    /**
     * gets the user id(the visitor id)
     * 
     * @return visitor id
     */
    public long getUserId() {
        return SocialSiteSession.get().getUserId();
    }

    /**
     * helper to check the role
     * 
     * @param role
     *            role
     */
    public boolean hasRole(final String role) {
        return SocialSiteSession.get().getSessionUser().hasRole(role);
    }

    public void renderHead(final IHeaderResponse response) {

    }

    /**
     * set the user id in the session and also sets the roles in the session
     * 
     * @param userId
     *            user id
     */
    public void setUserId(final long userId) {
        final SocialSiteSession session = SocialSiteSession.get();
        // set the user id
        session.setUserId(userId);
        // set the roles
        session.getSessionUser().setRoles(userDao.getUsersRelation(userId, session.getSessionUser().getId()));
    }
}