/*
 * ListTagsServlet.java
 *
 * Version: $Revision: 1.14 $
 *
 * Date: $Date: 2005/10/13 05:48:02 $
 *
 * Copyright (c) 2002-2005, Hewlett-Packard Company and Massachusetts
 * Institute of Technology.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * - Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 * - Neither the name of the Hewlett-Packard Company nor the name of the
 * Massachusetts Institute of Technology nor the names of their
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */
package org.dspace.app.webui.servlet;

import java.io.IOException;
import java.sql.SQLException;
import java.util.LinkedList;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;
import org.dspace.app.webui.util.JSPManager;
import org.dspace.app.webui.util.UIUtil;
import org.dspace.authorize.AuthorizeException;
import org.dspace.content.Item;
import org.dspace.content.ItemIterator;
import org.dspace.content.SupervisedItem;
import org.dspace.content.WorkspaceItem;
import org.dspace.core.Context;
import org.dspace.core.LogManager;
import org.dspace.eperson.BookmarkManager;
import org.dspace.eperson.EPerson;
import org.dspace.eperson.Group;
import org.dspace.handle.HandleManager;
import org.dspace.workflow.WorkflowItem;
import org.dspace.workflow.WorkflowManager;

/**
 * Servlet for constructing the components of the "ListTags" page
 * 
 * @author Robert Tansley
 * @version $Id: ListTagsServlet.java,v 1.14 2005/10/13 05:48:02 syeadon Exp $
 */
public class ListTagsServlet extends DSpaceServlet
{
    /** Logger */
    private static Logger log = Logger.getLogger(ListTagsServlet.class);

    protected void doDSGet(Context context, HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException,
            SQLException, AuthorizeException
    {
        // GET displays the main page - everthing else is a POST
        showMainPage(context, request, response);
    }

    protected void doDSPost(Context context, HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException,
            SQLException, AuthorizeException
    {
        showMainPage(context, request, response);
    }

    // ****************************************************************
    // ****************************************************************
    // METHODS FOR SHOWING FORMS
    // ****************************************************************
    // ****************************************************************

    /**
     * Show the main My DSpace page
     * 
     * @param context
     *            current context
     * @param request
     *            current servlet request object
     * @param response
     *            current servlet response object
     */
    private void showMainPage(Context context, HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException,
            SQLException, AuthorizeException
    {
        log.info(LogManager.getHeader(context, "view_ListTags", ""));
        
        EPerson currentUser = context.getCurrentUser();
        
        // Set attributes
        request.setAttribute("user", context.getCurrentUser());

        // Forward to main ListTags page
        JSPManager.showJSP(request, response, "/mydspace/listtags.jsp");
    }
}