Clover coverage report - Cactus 1.5 for J2EE API 1.3
Coverage timestamp: Wed Feb 18 2004 09:09:13 EST
file stats: LOC: 138   Methods: 1
NCLOC: 43   Classes: 1
 
 Source file Conditionals Statements Methods TOTAL
ServletUtil.java 0% 0% 0% 0%
coverage
 1   
 /*
 2   
  * ====================================================================
 3   
  *
 4   
  * The Apache Software License, Version 1.1
 5   
  *
 6   
  * Copyright (c) 2001-2003 The Apache Software Foundation.  All rights
 7   
  * reserved.
 8   
  *
 9   
  * Redistribution and use in source and binary forms, with or without
 10   
  * modification, are permitted provided that the following conditions
 11   
  * are met:
 12   
  *
 13   
  * 1. Redistributions of source code must retain the above copyright
 14   
  *    notice, this list of conditions and the following disclaimer.
 15   
  *
 16   
  * 2. Redistributions in binary form must reproduce the above copyright
 17   
  *    notice, this list of conditions and the following disclaimer in
 18   
  *    the documentation and/or other materials provided with the
 19   
  *    distribution.
 20   
  *
 21   
  * 3. The end-user documentation included with the redistribution, if
 22   
  *    any, must include the following acknowlegement:
 23   
  *       "This product includes software developed by the
 24   
  *        Apache Software Foundation (http://www.apache.org/)."
 25   
  *    Alternately, this acknowlegement may appear in the software itself,
 26   
  *    if and wherever such third-party acknowlegements normally appear.
 27   
  *
 28   
  * 4. The names "The Jakarta Project", "Cactus" and "Apache Software
 29   
  *    Foundation" must not be used to endorse or promote products
 30   
  *    derived from this software without prior written permission. For
 31   
  *    written permission, please contact apache@apache.org.
 32   
  *
 33   
  * 5. Products derived from this software may not be called "Apache"
 34   
  *    nor may "Apache" appear in their names without prior written
 35   
  *    permission of the Apache Group.
 36   
  *
 37   
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 38   
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 39   
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 40   
  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 41   
  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 42   
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 43   
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 44   
  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 45   
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 46   
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 47   
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 48   
  * SUCH DAMAGE.
 49   
  * ====================================================================
 50   
  *
 51   
  * This software consists of voluntary contributions made by many
 52   
  * individuals on behalf of the Apache Software Foundation.  For more
 53   
  * information on the Apache Software Foundation, please see
 54   
  * <http://www.apache.org/>.
 55   
  *
 56   
  */
 57   
 package org.apache.cactus.server;
 58   
 
 59   
 import java.net.URLDecoder;
 60   
 
 61   
 import org.apache.cactus.util.ChainedRuntimeException;
 62   
 
 63   
 /**
 64   
  * All prupose utility methods for manipulating the Servlet API.
 65   
  *
 66   
  * @author <a href="mailto:vmassol@apache.org">Vincent Massol</a>
 67   
  *
 68   
  * @version $Id: ServletUtil.java,v 1.5 2003/05/26 11:45:22 cmlenz Exp $
 69   
  */
 70   
 public class ServletUtil
 71   
 {
 72   
     /**
 73   
      * A substitute method for <code>HttpServletRequest.getParameter()</code>.
 74   
      * Contrary to <code>getParameter()</code>, this method does not
 75   
      * access the request input stream (only the query string of the url).
 76   
      *
 77   
      * Note: We use this method internally to retrieve Cactus parameters passed
 78   
      * by the client side. The issue with <code>getParameter()</code> is that
 79   
      * if you use it, then you cannot call <code>getReader()</code> or
 80   
      * <code>getInputStream()</code> (see the Servlet spec). However, if we
 81   
      * want to allow for testing code that uses these 2 methods (and we do !)
 82   
      * we need to use this method to get the internal Cactus parameters.
 83   
      *
 84   
      * @param theQueryString the query string to parse
 85   
      * @param theParameter the name of the parameter to locate
 86   
      * @return the value for theParameter in theQueryString, null if
 87   
      *         theParameter does not exist and "" if the parameter exists but
 88   
      *         has no value defined in the query string
 89   
      */
 90  0
     public static String getQueryStringParameter(String theQueryString, 
 91   
         String theParameter)
 92   
     {
 93  0
         if (theQueryString == null)
 94   
         {
 95  0
             return null;
 96   
         }
 97   
 
 98  0
         String value = null;
 99   
 
 100  0
         int startIndex = theQueryString.indexOf(theParameter + "=");
 101   
 
 102  0
         if (startIndex >= 0)
 103   
         {
 104   
             // add 1 for '='
 105  0
             startIndex += (theParameter.length() + 1);
 106   
 
 107  0
             int endIndex = theQueryString.indexOf('&', startIndex);
 108   
 
 109  0
             if (endIndex > startIndex)
 110   
             {
 111  0
                 value = theQueryString.substring(startIndex, endIndex);
 112   
             }
 113  0
             else if (endIndex == startIndex)
 114   
             {
 115  0
                 value = "";
 116   
             }
 117   
             else
 118   
             {
 119  0
                 value = theQueryString.substring(startIndex);
 120   
             }
 121   
 
 122   
             // In JDK 1.2 URLDecoder.decode throws an Exception. This is not
 123   
             // needed for JDK 1.3+ but needed to keep JDK 1.2.2 compatibility
 124  0
             try
 125   
             {
 126  0
                 value = URLDecoder.decode(value);
 127   
             }
 128   
             catch (Exception e)
 129   
             {
 130  0
                 throw new ChainedRuntimeException("Error URL decoding ["
 131   
                     + value + "]", e);
 132   
             }
 133   
         }
 134   
 
 135  0
         return value;
 136   
     }
 137   
 }
 138