Coverage report

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org.apache.jetspeed.engine.servlet.ServletHelper
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 1   
 /*
 2   
  * Licensed to the Apache Software Foundation (ASF) under one or more
 3   
  * contributor license agreements.  See the NOTICE file distributed with
 4   
  * this work for additional information regarding copyright ownership.
 5   
  * The ASF licenses this file to You under the Apache License, Version 2.0
 6   
  * (the "License"); you may not use this file except in compliance with
 7   
  * the License.  You may obtain a copy of the License at
 8   
  *
 9   
  *      http://www.apache.org/licenses/LICENSE-2.0
 10   
  *
 11   
  * Unless required by applicable law or agreed to in writing, software
 12   
  * distributed under the License is distributed on an "AS IS" BASIS,
 13   
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14   
  * See the License for the specific language governing permissions and
 15   
  * limitations under the License.
 16   
  */
 17   
 package org.apache.jetspeed.engine.servlet;
 18   
 
 19   
 import java.io.File;
 20   
 
 21   
 import javax.servlet.ServletConfig;
 22   
 import javax.servlet.ServletContext;
 23   
 import javax.servlet.ServletException;
 24   
 
 25   
 import org.apache.commons.lang.StringUtils;
 26   
 
 27   
 /**
 28   
  * Servlet Helper functions
 29   
  *
 30   
  * @author <a href="mailto:david@bluesunrise.com">David Sean Taylor</a>
 31   
  * @version $Id: ServletHelper.java 516448 2007-03-09 16:25:47Z ate $
 32   
  */
 33  0 
 public class ServletHelper
 34   
 {
 35   
     public static final String CONFIG_NAMESPACE = "org.apache.jetspeed";
 36   
 
 37   
     /** Default Value for the Logging Directory, relative to the webroot */
 38   
     public static final String LOGGING_ROOT_DEFAULT = "/logs";
 39   
     public static final String LOGGING_ROOT = "loggingRoot";
 40   
 
 41   
     /**
 42   
      * Used to get the real path of configuration and resource
 43   
      * information.
 44   
      *
 45   
      * @param path path translated to the application root
 46   
      * @return the real path
 47   
      */
 48   
     public static String getRealPath(ServletConfig config, String path)
 49   
     {
 50  0 
         if (path.startsWith("/"))
 51   
         {
 52  0 
             path = path.substring(1);
 53   
         }
 54   
 
 55  0 
         return new File(config.getServletContext().getRealPath(""), path).getAbsolutePath();
 56   
     }
 57   
 
 58   
     /**
 59   
      * Finds the specified servlet configuration/initialization
 60   
      * parameter, looking first for a servlet-specific parameter, then
 61   
      * for a global parameter, and using the provided default if not
 62   
      * found.
 63   
      */
 64   
     public static final String findInitParameter(ServletContext context,
 65   
                                                     ServletConfig config,
 66   
                                                     String name,
 67   
                                                     String defaultValue)
 68   
     {
 69  0 
         String path = null;
 70   
 
 71   
         // Try the name as provided first.
 72  0 
         boolean usingNamespace = name.startsWith(CONFIG_NAMESPACE);
 73   
         while (true)
 74   
         {
 75  0 
             path = config.getInitParameter(name);
 76  0 
             if (StringUtils.isEmpty(path))
 77   
             {
 78  0 
                 path = context.getInitParameter(name);
 79  0 
                 if (StringUtils.isEmpty(path))
 80   
                 {
 81   
                     // The named parameter didn't yield a value.
 82  0 
                     if (usingNamespace)
 83   
                     {
 84  0 
                         path = defaultValue;
 85   
                     }
 86   
                     else
 87   
                     {
 88   
                         // Try again using Jetspeed's namespace.
 89  0 
                         name = CONFIG_NAMESPACE + '.' + name;
 90  0 
                         usingNamespace = true;
 91  0 
                         continue;
 92   
                     }
 93   
                 }
 94   
             }
 95   
             break;
 96   
         }
 97   
 
 98  0 
         return path;
 99   
     }
 100   
 
 101   
     /**
 102   
      * Create any directories that might be needed during
 103   
      *
 104   
      */
 105   
     public static void createRuntimeDirectories(ServletContext context,
 106   
                                                  ServletConfig config)
 107   
         throws ServletException
 108   
     {
 109  0 
         String path = findInitParameter(context, config, LOGGING_ROOT, LOGGING_ROOT_DEFAULT);
 110  0 
         File logDir = new File(getRealPath(config, path));
 111  0 
         if (!logDir.exists())
 112   
         {
 113   
             // Create the logging directory
 114  0 
             if (!logDir.mkdirs())
 115   
             {
 116  0 
                 throw new ServletException("Cannot create directory for logs!");
 117   
             }
 118   
         }
 119  0 
     }
 120   
  }

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