se.vgregion.urlservice.controllers.AdminGuiController.java Source code

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Here is the source code for se.vgregion.urlservice.controllers.AdminGuiController.java

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/**
 * Copyright 2010 Vstra Gtalandsregionen
 *
 *   This library is free software; you can redistribute it and/or modify
 *   it under the terms of version 2.1 of the GNU Lesser General Public
 *   License as published by the Free Software Foundation.
 *
 *   This library 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 Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public
 *   License along with this library; if not, write to the
 *   Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 *   Boston, MA 02111-1307  USA
 *
 */

package se.vgregion.urlservice.controllers;

import java.io.IOException;
import java.util.Enumeration;
import java.util.UUID;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;

import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

import se.vgregion.urlservice.services.UrlServiceService;
import se.vgregion.urlservice.types.Application;
import se.vgregion.urlservice.types.RedirectRule;

/**
 * Controller for showing a basic web GUI for shorting link.
 *
 */
@Controller
public class AdminGuiController {

    private final Logger log = LoggerFactory.getLogger(AdminGuiController.class);

    @Resource
    private UrlServiceService urlServiceService;

    public AdminGuiController() {
        log.info("Created {}", AdminGuiController.class.getName());
    }

    @RequestMapping(value = "/admin", method = RequestMethod.GET)
    public ModelAndView index() throws IOException {
        ModelAndView mav = new ModelAndView("admin/index");

        mav.addObject("redirectRules", urlServiceService.findAllRedirectRules());
        mav.addObject("applications", urlServiceService.findAllApplications());

        return mav;
    }

    @RequestMapping(value = "/admin/redirectrules", method = RequestMethod.POST)
    public ModelAndView updateRedirectRules(HttpServletRequest request) throws IOException {
        ModelAndView mav = new ModelAndView("redirect:../admin");

        if (request.getParameter("add") != null) {
            // adding a new rule
            String domain = request.getParameter("domain");
            if (StringUtils.isEmpty(domain)) {
                domain = null;
            }
            String pattern = request.getParameter("pattern");
            String url = request.getParameter("url");

            if (StringUtils.isNotEmpty(pattern)) {
                log.debug("Adding redirect rule with pattern \"{}\" and URL \"{}\"", pattern, url);
                try {
                    urlServiceService.createRedirectRule(new RedirectRule(domain, pattern, url));
                } catch (RuntimeException e) {
                    throw e;
                }
            } else {
                // handle validation error
                System.out.println("Validation error");
            }
        } else {
            UUID deletedId = findDeletedId(request);
            if (deletedId != null) {
                log.debug("Deleting redirect rule {}", deletedId);
                urlServiceService.removeRedirectRule(deletedId);
            }
        }

        return mav;
    }

    @RequestMapping(value = "/admin/applications", method = RequestMethod.POST)
    public ModelAndView updateApplications(HttpServletRequest request) throws IOException {
        ModelAndView mav = new ModelAndView("redirect:../admin");

        if (request.getParameter("add") != null) {
            // adding a new application
            String name = request.getParameter("name");

            if (StringUtils.isNotEmpty(name)) {
                log.debug("Adding application with name \"{}\"", name);
                urlServiceService.createApplication(new Application(name));
            }
        } else {
            UUID deletedId = findDeletedId(request);
            if (deletedId != null) {
                log.debug("Deleting application {}", deletedId);
                urlServiceService.removeApplication(deletedId);
            }
        }

        return mav;
    }

    private UUID findDeletedId(HttpServletRequest request) {
        Enumeration names = request.getParameterNames();
        while (names.hasMoreElements()) {
            String name = (String) names.nextElement();
            if (name.startsWith("delete-")) {
                return UUID.fromString(name.substring(7));
            }
        }

        return null;
    }

    public UrlServiceService getUrlServiceService() {
        return urlServiceService;
    }

    public void setUrlServiceService(UrlServiceService urlServiceService) {
        this.urlServiceService = urlServiceService;
    }
}