| Clover coverage report - Code Coverage for tapestry release 4.0.3 |
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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| RedirectFilter.java | 0% | 0% | 0% | 0% |
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| 1 | // Copyright 2004, 2005 The Apache Software Foundation | |
| 2 | // | |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); | |
| 4 | // you may not use this file except in compliance with the License. | |
| 5 | // You may obtain a copy of the License at | |
| 6 | // | |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 | |
| 8 | // | |
| 9 | // Unless required by applicable law or agreed to in writing, software | |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, | |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 12 | // See the License for the specific language governing permissions and | |
| 13 | // limitations under the License. | |
| 14 | ||
| 15 | package org.apache.tapestry; | |
| 16 | ||
| 17 | import java.io.IOException; | |
| 18 | ||
| 19 | import javax.servlet.Filter; | |
| 20 | import javax.servlet.FilterChain; | |
| 21 | import javax.servlet.FilterConfig; | |
| 22 | import javax.servlet.ServletException; | |
| 23 | import javax.servlet.ServletRequest; | |
| 24 | import javax.servlet.ServletResponse; | |
| 25 | import javax.servlet.http.HttpServletRequest; | |
| 26 | import javax.servlet.http.HttpServletResponse; | |
| 27 | ||
| 28 | import org.apache.commons.logging.Log; | |
| 29 | import org.apache.commons.logging.LogFactory; | |
| 30 | import org.apache.hivemind.HiveMind; | |
| 31 | ||
| 32 | /** | |
| 33 | * Filter used to redirect a root context URL (i.e., "/context" or "/context/" to the Tapestry | |
| 34 | * application servlet (typically, "/context/app"). This servlet is mapped to "/" and must have a | |
| 35 | * <init-parameter&;gt; <code>redirect-path</code> that is the application servlet's path | |
| 36 | * (i.e., "/app"). If no value is specified, then "/app" is used. The path is always relative to the | |
| 37 | * servlet context, and should always begin with a leading slash. | |
| 38 | * <p> | |
| 39 | * Filters are only available in Servlet API 2.3 and above. | |
| 40 | * <p> | |
| 41 | * Servlet API 2.4 is expected to allow a servlets in the welcome list (equivalent to index.html or | |
| 42 | * index.jsp), at which point this filter should no longer be necessary. | |
| 43 | * | |
| 44 | * @author Howard Lewis Ship | |
| 45 | * @since 3.0 | |
| 46 | */ | |
| 47 | ||
| 48 | public class RedirectFilter implements Filter | |
| 49 | { | |
| 50 | private static final Log LOG = LogFactory.getLog(RedirectFilter.class); | |
| 51 | ||
| 52 | public static final String REDIRECT_PATH_PARAM = "redirect-path"; | |
| 53 | ||
| 54 | private String _redirectPath; | |
| 55 | ||
| 56 | 0 | public void init(FilterConfig config) throws ServletException |
| 57 | { | |
| 58 | 0 | _redirectPath = config.getInitParameter(REDIRECT_PATH_PARAM); |
| 59 | ||
| 60 | 0 | if (HiveMind.isBlank(_redirectPath)) |
| 61 | 0 | _redirectPath = "/app"; |
| 62 | ||
| 63 | 0 | if (LOG.isDebugEnabled()) |
| 64 | 0 | LOG.debug(Tapestry.format("RedirectServlet.redirect-path", _redirectPath)); |
| 65 | } | |
| 66 | ||
| 67 | 0 | public void destroy() |
| 68 | { | |
| 69 | ||
| 70 | } | |
| 71 | ||
| 72 | /** | |
| 73 | * This filter intercepts the so-called "default" servlet, whose job is to provide access to | |
| 74 | * standard resources packaged within the web application context. This code is interested in | |
| 75 | * only the very root, redirecting to the appropriate Tapestry application servlet. Other values | |
| 76 | * are passed through unchanged. | |
| 77 | */ | |
| 78 | 0 | public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) |
| 79 | throws IOException, ServletException | |
| 80 | { | |
| 81 | 0 | HttpServletRequest hrequest = (HttpServletRequest) request; |
| 82 | 0 | HttpServletResponse hresponse = (HttpServletResponse) response; |
| 83 | ||
| 84 | 0 | String servletPath = hrequest.getServletPath(); |
| 85 | 0 | String pathInfo = hrequest.getPathInfo(); |
| 86 | ||
| 87 | // Been experimenting with different servlet containers. In Jetty 4.2.8 and Tomcat 4.1, | |
| 88 | // resources have a non-null servletPath. If JBossWeb 3.0.6, the servletPath is | |
| 89 | // null and the pathInfo indicates the relative location of the resource. | |
| 90 | ||
| 91 | 0 | if ((HiveMind.isBlank(servletPath) || servletPath.equals("/")) |
| 92 | && (HiveMind.isBlank(pathInfo) || pathInfo.equals("/"))) | |
| 93 | { | |
| 94 | 0 | String path = hrequest.getContextPath() + _redirectPath; |
| 95 | ||
| 96 | 0 | if (LOG.isDebugEnabled()) |
| 97 | 0 | LOG.debug(Tapestry.format("RedirectServlet.redirecting", path)); |
| 98 | ||
| 99 | 0 | hresponse.sendRedirect(path); |
| 100 | 0 | return; |
| 101 | } | |
| 102 | ||
| 103 | 0 | chain.doFilter(request, response); |
| 104 | } | |
| 105 | ||
| 106 | } |
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