jforum example source code file (ConfigAction.java)

This example jforum source code file (ConfigAction.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - jforum tags/keywords

arraylist, configaction, configaction, enumeration, exception, fileinputstream, forumexception, io, iterator, iterator, list, net, network, properties, properties, string, string, util

The jforum ConfigAction.java source code

/*
 * Copyright (c) JForum Team
 * 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) Neither the name of "Rafael Steil" nor 
 * the names of its 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 OWNER 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
 * 
 * This file creation date: 15/08/2003 / 20:56:33
 * The JForum Project
 * http://www.jforum.net
 */
package net.jforum.view.admin;

import java.io.FileInputStream;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Properties;

import net.jforum.context.RequestContext;
import net.jforum.context.ResponseContext;
import net.jforum.entities.Category;
import net.jforum.entities.Forum;
import net.jforum.exceptions.ForumException;
import net.jforum.repository.ForumRepository;
import net.jforum.repository.TopicRepository;
import net.jforum.util.I18n;
import net.jforum.util.SafeHtml;
import net.jforum.util.preferences.ConfigKeys;
import net.jforum.util.preferences.SystemGlobals;
import net.jforum.util.preferences.TemplateKeys;
import freemarker.template.SimpleHash;

/**
 * @author Rafael Steil
 * @version $Id: ConfigAction.java,v 1.22 2008/01/23 01:27:16 rafaelsteil Exp $
 */
public class ConfigAction extends AdminCommand 
{
	public ConfigAction() {}
	
	public ConfigAction(RequestContext request,
			ResponseContext response, 
			SimpleHash context)
	{
		this.request = request;
		this.response = response;
		this.context = context;
	}
	
	public void list() {
		Properties p = new Properties();
		Iterator iter = SystemGlobals.fetchConfigKeyIterator();

		while (iter.hasNext()) {
			String key = (String) iter.next();
			String value = SystemGlobals.getValue(key);
			p.put(key, value);
		}

		Properties locales = new Properties();
		
		FileInputStream fis = null;
		
		try {
			fis = new FileInputStream(SystemGlobals.getValue(ConfigKeys.CONFIG_DIR)
				+ "/languages/locales.properties");
			locales.load(fis);
		}
		catch (IOException e) {
			throw new ForumException(e);
		}
		finally {
			if (fis != null) {
				try { fis.close(); } catch (Exception e) {}
			}
		}
		
		List localesList = new ArrayList();

		for (Enumeration e = locales.keys(); e.hasMoreElements();) {
			localesList.add(e.nextElement());
		}

		this.context.put("config", p);
		this.context.put("locales", localesList);
		this.setTemplateName(TemplateKeys.CONFIG_LIST);
	}

	public void editSave()
	{
		this.updateData(this.getConfig());
		this.list();
	}
	
	Properties getConfig()
	{
		Properties p = new Properties();

		for (Enumeration e = this.request.getParameterNames(); e.hasMoreElements(); ) {
			String formFieldName = (String) e.nextElement();

			if (formFieldName.startsWith("p_")) {
				String propertyKey = formFieldName.substring(formFieldName.indexOf('_') + 1);
				p.setProperty(propertyKey,  this.safeValue(propertyKey, this.request.getParameter(formFieldName)));
			}
		}
		
		return p;
	}

	void updateData(Properties p)
	{
		int oldTopicsPerPage = SystemGlobals.getIntValue(ConfigKeys.TOPICS_PER_PAGE);

		for (Iterator iter = p.entrySet().iterator(); iter.hasNext(); ) {
			Map.Entry entry = (Map.Entry)iter.next();
			
			SystemGlobals.setValue((String)entry.getKey(), (String)entry.getValue());
		}
		
		SystemGlobals.saveInstallation();
		I18n.changeBoardDefault(SystemGlobals.getValue(ConfigKeys.I18N_DEFAULT));
		
		// If topicsPerPage has changed, force a reload in all forums
		if (oldTopicsPerPage != SystemGlobals.getIntValue(ConfigKeys.TOPICS_PER_PAGE)) {
			List categories = ForumRepository.getAllCategories();
			
			for (Iterator iter = categories.iterator(); iter.hasNext(); ) {
				Category c = (Category)iter.next();
				
				for (Iterator iter2 = c.getForums().iterator(); iter2.hasNext(); ) {
					Forum f = (Forum)iter2.next();
					TopicRepository.clearCache(f.getId());
				}
			}
		}
	}
	
	private String safeValue(String name, String value) 
	{
		if (name.equals("homepage.link") || name.equals("forum.link")) {
			// Little trick to try to enforce a 'real' url. We don't care
			// if it throws an exception, because no buggy data is excepted, ever
			try {
				new URL(value).toURI();
			}
			catch (Exception e) {
				throw new ForumException(e);
			}
			
			return value;
		}
		else if (name.equals("encoding") 
			|| name.equals("forum.name")
			|| name.equals("forum.page.metatag.description")
			|| name.equals("forum.page.metatag.keywords")
			|| name.equals("forum.page.title")) {
			value = new SafeHtml().makeSafe(value);
		}
		
		return value;
	}
}