Coverage report

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org.apache.commons.configuration.web.ServletContextConfiguration
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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.List;
 21   
 import javax.servlet.Servlet;
 22   
 import javax.servlet.ServletContext;
 23   
 
 24   
 import org.apache.commons.collections.iterators.EnumerationIterator;
 25   
 import org.apache.commons.configuration.AbstractConfiguration;
 26   
 import org.apache.commons.configuration.PropertyConverter;
 27   
 
 28   
 /**
 29   
  * A configuration wrapper to read the initialization parameters of a servlet
 30   
  * context. This configuration is read only, adding or removing a property will
 31   
  * throw an UnsupportedOperationException.
 32   
  *
 33   
  * @author <a href="mailto:ebourg@apache.org">Emmanuel Bourg</a>
 34   
  * @version $Revision: 155408 $, $Date: 2005-02-26 13:56:39 +0100 (Sa, 26 Feb 2005) $
 35   
  * @since 1.1
 36   
  */
 37   
 public class ServletContextConfiguration extends AbstractConfiguration
 38   
 {
 39   
     protected ServletContext context;
 40   
 
 41   
     /**
 42   
      * Create a ServletContextConfiguration using the context of
 43   
      * the specified servlet.
 44   
      *
 45   
      * @param servlet the servlet
 46  54 
      */
 47  54 
     public ServletContextConfiguration(Servlet servlet)
 48  152 
     {
 49  98 
         this.context = servlet.getServletConfig().getServletContext();
 50  98 
     }
 51   
 
 52   
     /**
 53   
      * Create a ServletContextConfiguration using the servlet context
 54   
      * initialization parameters.
 55   
      *
 56   
      * @param context the servlet context
 57  18 
      */
 58  18 
     public ServletContextConfiguration(ServletContext context)
 59  32 
     {
 60  14 
         this.context = context;
 61  14 
     }
 62   
 
 63  45 
     public Object getProperty(String key)
 64   
     {
 65  98 
         Object value = context.getInitParameter(key);
 66  98 
         List list = PropertyConverter.split((String) value, getDelimiter());
 67   
 
 68  98 
         return list.size() > 1 ? list : value;
 69   
     }
 70   
 
 71   
     /**
 72   
      * <p><strong>This operation is not supported and will throw an
 73   
      * UnsupportedOperationException.</strong></p>
 74  9 
      *
 75   
      * @throws UnsupportedOperationException
 76   
      */
 77   
     protected void addPropertyDirect(String key, Object obj)
 78   
     {
 79  32 
         throw new UnsupportedOperationException("Read only configuration");
 80   
     }
 81   
 
 82   
     public boolean isEmpty()
 83   
     {
 84  46 
         return !getKeys().hasNext();
 85   
     }
 86   
 
 87   
     public boolean containsKey(String key)
 88   
     {
 89  28 
         return getProperty(key) != null;
 90   
     }
 91   
 
 92   
     /**
 93   
      * <p><strong>This operation is not supported and will throw an
 94   
      * UnsupportedOperationException.</strong></p>
 95  9 
      *
 96   
      * @throws UnsupportedOperationException
 97   
      */
 98   
     public void clearProperty(String key)
 99   
     {
 100  50 
         throw new UnsupportedOperationException("Read only configuration");
 101   
     }
 102   
 
 103   
     public Iterator getKeys()
 104   
     {
 105  42 
         return new EnumerationIterator(context.getInitParameterNames());
 106   
     }
 107   
 }

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