SetUpTreeAction.java

/*
 * $Header: /cvsroot/jonas/jonas/src/org/objectweb/jonas/webapp/jonasadmin/SetUpTreeAction.java,v 1.2 2004/09/15 12:19:50 benoitf Exp $
 * $Revision: 1.2 $
 * $Date: 2004/09/15 12:19:50 $
 *
 * ====================================================================
 *
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2001 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. 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.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache"
 *    nor may "Apache" appear in their names without prior written
 *    permission of the Apache Group.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * ITS 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
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 * 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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */

package org.objectweb.jonas.webapp.jonasadmin;

import java.io.IOException;
import java.util.ArrayList;
import java.util.StringTokenizer;

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

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionServlet;
import org.objectweb.jonas.webapp.taglib.TreeBuilder;
import org.objectweb.jonas.webapp.taglib.TreeControl;
import org.objectweb.jonas.webapp.taglib.TreeControlNode;

public class SetUpTreeAction extends Action {

    public static final int INIT_PLUGIN_MAX = 10;
    public static final String TREEBUILDER_KEY = "treebuilders";
    public static final String ROOTNODENAME_KEY = "rootnodename";

// --------------------------------------------------------- Public Methods

    public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request
        , HttpServletResponse response)
        throws IOException, ServletException {

        //ApplicationServlet servlet = (ApplicationServlet) getServlet();
        ActionServlet servlet = (ActionServlet) getServlet();

        // Getting init parms from web.xml

        // Get the string to be displayed as root node while rendering the tree
        String rootnodeName = (String) servlet.getServletConfig().getInitParameter(ROOTNODENAME_KEY);

        String treeBuildersStr = (String) servlet.getServletConfig().getInitParameter(
            TREEBUILDER_KEY);

        // Make the root node and tree control

        // The root node gets rendered only if its value
        // is set as an init-param in web.xml

        TreeControlNode root = new TreeControlNode("ROOT-NODE", null, rootnodeName
            , "setUpTree.do?select=ROOT-NODE", "content", true);

        TreeControl control = new TreeControl(root);

        if (treeBuildersStr != null) {
            Class treeBuilderImpl;
            TreeBuilder treeBuilderBase;

            ArrayList treeBuilders = new ArrayList(INIT_PLUGIN_MAX);
            int i = 0;
            StringTokenizer st = new StringTokenizer(treeBuildersStr, ",");
            while (st.hasMoreTokens()) {
                treeBuilders.add(st.nextToken().trim());
            }

            if (treeBuilders.size() == 0) {
                treeBuilders.add(treeBuildersStr.trim());
            }
            for (i = 0; i < treeBuilders.size(); i++) {
                try {
                    treeBuilderImpl = Class.forName((String) treeBuilders.get(i));
                    treeBuilderBase = (TreeBuilder) treeBuilderImpl.newInstance();
                    treeBuilderBase.buildTree(control, servlet, request);
                }
                catch (Throwable t) {
                    t.printStackTrace(System.out);
                }
            }
        }

        HttpSession session = request.getSession();
        session.setAttribute("treeControl", control);

        WhereAreYou oWhere = (WhereAreYou) session.getAttribute(WhereAreYou.SESSION_NAME);
        oWhere.setTreeControl(control);

        String name = request.getParameter("select");
        if (name != null) {
            control.selectNode(name);
            // Forward back to the Blank page
            return (mapping.findForward("Blank"));
        }

        return (mapping.findForward("Tree"));

    }
}

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