Java tutorial
/* ================================================================== * AboutController.java - Jun 17, 2011 6:51:55 PM * * Copyright 2007-2011 SolarNetwork.net Dev Team * * 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 2 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, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA * 02111-1307 USA * ================================================================== * $Id$ * ================================================================== */ package net.solarnetwork.central.dras.web; import java.util.Dictionary; import java.util.LinkedHashMap; import java.util.Locale; import java.util.Map; import javax.servlet.http.HttpServletRequest; import net.solarnetwork.web.support.WebUtils; import org.osgi.framework.BundleContext; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.MessageSource; import org.springframework.osgi.context.BundleContextAware; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; /** * Controller for application details. * * @author matt * @version $Revision$ */ @Controller @RequestMapping("/about") public class AboutController extends ControllerSupport implements BundleContextAware { private static final String[] DEFAULT_KEYS = new String[] { "Bundle-Name", "Bundle-SymbolicName", "Bundle-Version" }; private BundleContext bundleContext; @Autowired private MessageSource messageSource; @Override public void setBundleContext(BundleContext bundleContext) { this.bundleContext = bundleContext; } @ModelAttribute("app") public Map<String, Object> getApplicationDetails(Locale locale) { Map<String, Object> result = new LinkedHashMap<String, Object>(5); if (bundleContext != null) { Dictionary<?, ?> dic = bundleContext.getBundle().getHeaders(); for (String key : DEFAULT_KEYS) { Object val = dic.get(key); Map<String, Object> value = new LinkedHashMap<String, Object>(2); value.put("value", val); if (messageSource != null) { String msg = messageSource.getMessage("about.field." + key, null, locale); value.put("title", msg); } result.put(key, value); } } return result; } @RequestMapping(method = RequestMethod.GET, value = "/app.*") public String version(HttpServletRequest request) { return WebUtils.resolveViewFromUrlExtension(request, getViewName()); } }