src/java/de/uapcore/lightpit/AbstractLightPITServlet.java

Sat, 16 Dec 2017 20:19:28 +0100

author
Mike Becker <universe@uap-core.de>
date
Sat, 16 Dec 2017 20:19:28 +0100
changeset 10
89e3e6e28b69
parent 9
20a9b2bc9063
child 11
737ab27e37b3
permissions
-rw-r--r--

implements automatic menu generation from module information

     1 /*
     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
     3  * 
     4  * Copyright 2017 Mike Becker. All rights reserved.
     5  * 
     6  * Redistribution and use in source and binary forms, with or without
     7  * modification, are permitted provided that the following conditions are met:
     8  *
     9  *   1. Redistributions of source code must retain the above copyright
    10  *      notice, this list of conditions and the following disclaimer.
    11  *
    12  *   2. Redistributions in binary form must reproduce the above copyright
    13  *      notice, this list of conditions and the following disclaimer in the
    14  *      documentation and/or other materials provided with the distribution.
    15  *
    16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    19  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
    20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    26  * POSSIBILITY OF SUCH DAMAGE.
    27  * 
    28  */
    29 package de.uapcore.lightpit;
    31 import java.io.IOException;
    32 import javax.servlet.ServletException;
    33 import javax.servlet.http.HttpServlet;
    34 import javax.servlet.http.HttpServletRequest;
    35 import javax.servlet.http.HttpServletResponse;
    36 import org.slf4j.Logger;
    37 import org.slf4j.LoggerFactory;
    39 /**
    40  * A special implementation of a HTTPServlet which is focused on implementing
    41  * the necessary functionality for {@link LightPITModule}s.
    42  */
    43 public abstract class AbstractLightPITServlet extends HttpServlet {
    45     private static final Logger LOG = LoggerFactory.getLogger(AbstractLightPITServlet.class);
    48     /**
    49      * Gives implementing modules access to the {@link ModuleManager}.
    50      * @return the module manager
    51      */
    52     protected final ModuleManager getModuleManager() {
    53         return (ModuleManager) getServletContext().getAttribute(ModuleManager.SC_ATTR_NAME);
    54     }
    56     private void addPathInformation(HttpServletRequest req) {
    57         final String path = req.getServletPath()+"/"+req.getPathInfo();
    58         req.setAttribute(Constants.REQ_ATTR_PATH, path);
    59     }
    61     private void forwardToFullView(HttpServletRequest req, HttpServletResponse resp)
    62             throws IOException, ServletException {
    64         addPathInformation(req);
    66         final ModuleManager mm = getModuleManager();
    67         req.setAttribute(Constants.REQ_ATTR_MENU, mm.getMainMenu());
    69         req.getRequestDispatcher(Functions.jspPath("full.jsp")).forward(req, resp);
    70     }
    72     @Override
    73     protected final void doGet(HttpServletRequest req, HttpServletResponse resp)
    74             throws ServletException, IOException {
    75         forwardToFullView(req, resp);
    76     }
    78     @Override
    79     protected final void doPost(HttpServletRequest req, HttpServletResponse resp)
    80             throws ServletException, IOException {
    82         forwardToFullView(req, resp);
    83     }
    84 }

mercurial