Clover coverage report - Code Coverage for tapestry release 4.0-alpha-3
Coverage timestamp: Mon May 16 2005 09:05:49 EDT
file stats: LOC: 106   Methods: 3
NCLOC: 47   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
RedirectFilter.java 0% 0% 0% 0%
coverage
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 // Copyright 2004, 2005 The Apache Software Foundation
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 //
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 // Licensed under the Apache License, Version 2.0 (the "License");
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 // you may not use this file except in compliance with the License.
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 // You may obtain a copy of the License at
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 //
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 //     http://www.apache.org/licenses/LICENSE-2.0
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 //
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 // Unless required by applicable law or agreed to in writing, software
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 // distributed under the License is distributed on an "AS IS" BASIS,
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 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 // See the License for the specific language governing permissions and
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 // limitations under the License.
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 package org.apache.tapestry;
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 import java.io.IOException;
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 import javax.servlet.Filter;
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 import javax.servlet.FilterChain;
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 import javax.servlet.FilterConfig;
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 import javax.servlet.ServletException;
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 import javax.servlet.ServletRequest;
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 import javax.servlet.ServletResponse;
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 import javax.servlet.http.HttpServletRequest;
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 import javax.servlet.http.HttpServletResponse;
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 import org.apache.commons.logging.Log;
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 import org.apache.commons.logging.LogFactory;
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 import org.apache.hivemind.HiveMind;
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 /**
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  * Filter used to redirect a root context URL (i.e., "/context" or "/context/" to the Tapestry
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  * application servlet (typically, "/context/app"). This servlet is mapped to "/" and must have a
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  * &lt;init-parameter&;gt; <code>redirect-path</code> that is the application servlet's path
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  * (i.e., "/app"). If no value is specified, then "/app" is used. The path is always relative to the
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  * servlet context, and should always begin with a leading slash.
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  * <p>
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  * Filters are only available in Servlet API 2.3 and above.
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  * <p>
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  * Servlet API 2.4 is expected to allow a servlets in the welcome list (equivalent to index.html or
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  * index.jsp), at which point this filter should no longer be necessary.
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  * 
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  * @author Howard Lewis Ship
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  * @since 3.0
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  */
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 public class RedirectFilter implements Filter
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 {
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     private static final Log LOG = LogFactory.getLog(RedirectFilter.class);
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     public static final String REDIRECT_PATH_PARAM = "redirect-path";
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     private String _redirectPath;
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     public void init(FilterConfig config) throws ServletException
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     {
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         _redirectPath = config.getInitParameter(REDIRECT_PATH_PARAM);
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         if (HiveMind.isBlank(_redirectPath))
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             _redirectPath = "/app";
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         if (LOG.isDebugEnabled())
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             LOG.debug(Tapestry.format("RedirectServlet.redirect-path", _redirectPath));
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     }
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     public void destroy()
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     {
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     }
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     /**
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      * This filter intercepts the so-called "default" servlet, whose job is to provide access to
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      * standard resources packaged within the web application context. This code is interested in
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      * only the very root, redirecting to the appropriate Tapestry application servlet. Other values
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      * are passed through unchanged.
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      */
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     public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
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             throws IOException, ServletException
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     {
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         HttpServletRequest hrequest = (HttpServletRequest) request;
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         HttpServletResponse hresponse = (HttpServletResponse) response;
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         String servletPath = hrequest.getServletPath();
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         String pathInfo = hrequest.getPathInfo();
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         // Been experimenting with different servlet containers. In Jetty 4.2.8 and Tomcat 4.1,
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         // resources have a non-null servletPath. If JBossWeb 3.0.6, the servletPath is
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         // null and the pathInfo indicates the relative location of the resource.
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         if ((HiveMind.isBlank(servletPath) || servletPath.equals("/"))
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                 && (HiveMind.isBlank(pathInfo) || pathInfo.equals("/")))
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         {
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             String path = hrequest.getContextPath() + _redirectPath;
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             if (LOG.isDebugEnabled())
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                 LOG.debug(Tapestry.format("RedirectServlet.redirecting", path));
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             hresponse.sendRedirect(path);
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             return;
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         }
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         chain.doFilter(request, response);
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     }
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 }