001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *
010 *        http://www.apache.org/licenses/LICENSE-2.0
011 *
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License.
018 */
019
020package org.apache.isis.core.webapp.routing;
021
022import java.io.IOException;
023
024import javax.servlet.ServletConfig;
025import javax.servlet.ServletException;
026import javax.servlet.http.HttpServlet;
027import javax.servlet.http.HttpServletRequest;
028import javax.servlet.http.HttpServletResponse;
029
030import org.apache.isis.core.commons.lang.StringExtensions;
031
032public class RedirectServlet extends HttpServlet {
033
034    private static final long serialVersionUID = 1L;
035    private String redirectTo;
036
037    @Override
038    public void init(final ServletConfig config) throws ServletException {
039        redirectTo = config.getInitParameter("redirectTo");
040    }
041
042    @Override
043    protected void doGet(final HttpServletRequest request, final HttpServletResponse response) throws ServletException, IOException {
044
045        response.sendRedirect(StringExtensions.combinePath(request.getContextPath(), redirectTo));
046    }
047
048}