Coverage report

  %line %branch
org.apache.commons.configuration.web.ServletRequestConfiguration
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 1   
 /*
 2   
  * Copyright 2004 The Apache Software Foundation.
 3   
  *
 4   
  * Licensed under the Apache License, Version 2.0 (the "License")
 5   
  * you may not use this file except in compliance with the License.
 6   
  * You may obtain a copy of the License at
 7   
  *
 8   
  *     http://www.apache.org/licenses/LICENSE-2.0
 9   
  *
 10   
  * Unless required by applicable law or agreed to in writing, software
 11   
  * distributed under the License is distributed on an "AS IS" BASIS,
 12   
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13   
  * See the License for the specific language governing permissions and
 14   
  * limitations under the License.
 15   
  */
 16   
 
 17   
 package org.apache.commons.configuration.web;
 18   
 
 19   
 import java.util.Iterator;
 20   
 import java.util.Arrays;
 21   
 import javax.servlet.ServletRequest;
 22   
 
 23   
 import org.apache.commons.collections.iterators.EnumerationIterator;
 24   
 import org.apache.commons.configuration.AbstractConfiguration;
 25   
 
 26   
 /**
 27   
  * A configuration wrapper to read the parameters of a servlet request. This
 28   
  * configuration is read only, adding or removing a property will throw an
 29   
  * UnsupportedOperationException.
 30   
  *
 31   
  * @author <a href="mailto:ebourg@apache.org">Emmanuel Bourg</a>
 32   
  * @version $Revision: 155408 $, $Date: 2005-02-26 13:56:39 +0100 (Sa, 26 Feb 2005) $
 33   
  * @since 1.1
 34   
  */
 35   
 public class ServletRequestConfiguration extends AbstractConfiguration
 36   
 {
 37   
     protected ServletRequest request;
 38   
 
 39   
     /**
 40   
      * Create a ServletRequestConfiguration using the request parameters.
 41   
      *
 42   
      * @param request the servlet request
 43   
      */
 44  72 
     public ServletRequestConfiguration(ServletRequest request)
 45  184 
     {
 46  184 
         this.request = request;
 47  112 
     }
 48   
 
 49   
     public Object getProperty(String key)
 50  45 
     {
 51  98 
         String values[] = request.getParameterValues(key);
 52   
 
 53  98 
         if (values == null || values.length == 0)
 54   
         {
 55  28 
             return null;
 56   
         }
 57  70 
         else if (values.length == 1)
 58   
         {
 59  42 
             return values[0];
 60   
         }
 61  9 
         else
 62   
         {
 63  28 
             return Arrays.asList(values);
 64   
         }
 65   
     }
 66  18 
 
 67   
     /**
 68   
      * <p><strong>This operation is not supported and will throw an
 69   
      * UnsupportedOperationException.</strong></p>
 70   
      *
 71  18 
      * @throws UnsupportedOperationException
 72   
      */
 73   
     protected void addPropertyDirect(String key, Object obj)
 74   
     {
 75  14 
         throw new UnsupportedOperationException("Read only configuration");
 76   
     }
 77   
 
 78   
     public boolean isEmpty()
 79   
     {
 80  28 
         return !getKeys().hasNext();
 81   
     }
 82  9 
 
 83   
     public boolean containsKey(String key)
 84   
     {
 85  28 
         return getProperty(key) != null;
 86   
     }
 87  36 
 
 88   
     /**
 89   
      * <p><strong>This operation is not supported and will throw an
 90   
      * UnsupportedOperationException.</strong></p>
 91   
      *
 92   
      * @throws UnsupportedOperationException
 93   
      */
 94   
     public void clearProperty(String key)
 95   
     {
 96  14 
         throw new UnsupportedOperationException("Read only configuration");
 97   
     }
 98   
 
 99   
     public Iterator getKeys()
 100   
     {
 101  42 
         return new EnumerationIterator(request.getParameterNames());
 102   
     }
 103   
 }

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