Coverage report

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org.apache.commons.configuration.ConfigurationConverter
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 1   
 /*
 2   
  * Copyright 2001-2005 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;
 18   
 
 19   
 import java.util.Iterator;
 20   
 import java.util.List;
 21   
 import java.util.Map;
 22   
 import java.util.Properties;
 23   
 import java.util.Vector;
 24   
 
 25   
 import org.apache.commons.collections.ExtendedProperties;
 26   
 import org.apache.commons.lang.StringUtils;
 27   
 
 28   
 /**
 29   
  * Configuration converter. Helper class to convert between Configuration,
 30   
  * ExtendedProperties and standard Properties.
 31   
  *
 32   
  * @author <a href="mailto:mpoeschl@marmot.at">Martin Poeschl</a>
 33   
  * @version $Revision$, $Date: 2005-10-03 20:12:54 +0200 (Mon, 03 Oct 2005) $
 34   
  */
 35   
 public final class ConfigurationConverter
 36   
 {
 37   
     /**
 38   
      * Private constructor prevents instances from being created.
 39   
      */
 40   
     private ConfigurationConverter()
 41  0 
     {
 42   
         // to prevent instanciation...
 43  0 
     }
 44   
 
 45   
     /**
 46   
      * Convert a ExtendedProperties class into a Configuration class.
 47   
      *
 48   
      * @param eprops ExtendedProperties object to convert
 49   
      * @return Configuration created from the ExtendedProperties
 50   
      */
 51   
     public static Configuration getConfiguration(ExtendedProperties eprops)
 52   
     {
 53  3 
         return new MapConfiguration(eprops);
 54   
     }
 55   
 
 56   
     /**
 57   
      * Convert a standard Properties class into a configuration class.
 58   
      *
 59   
      * @param props properties object to convert
 60   
      * @return Configuration configuration created from the Properties
 61   
      */
 62   
     public static Configuration getConfiguration(Properties props)
 63   
     {
 64  9 
         return new MapConfiguration(props);
 65   
     }
 66   
 
 67   
     /**
 68   
      * Convert a Configuration class into a ExtendedProperties class.
 69   
      *
 70   
      * @param config Configuration object to convert
 71   
      * @return ExtendedProperties created from the Configuration
 72   
      */
 73   
     public static ExtendedProperties getExtendedProperties(Configuration config)
 74   
     {
 75  3 
         ExtendedProperties props = new ExtendedProperties();
 76   
 
 77  3 
         Iterator keys = config.getKeys();
 78   
 
 79  15 
         while (keys.hasNext())
 80   
         {
 81  9 
             String key = (String) keys.next();
 82  9 
             Object property = config.getProperty(key);
 83   
 
 84   
             // turn lists into vectors
 85  9 
             if (property instanceof List)
 86   
             {
 87  3 
                 property = new Vector((List) property);
 88   
             }
 89   
 
 90  9 
             props.setProperty(key, property);
 91   
         }
 92   
 
 93  3 
         return props;
 94   
     }
 95   
 
 96   
     /**
 97   
      * Convert a Configuration class into a Properties class. List properties
 98   
      * are joined into a string using the delimiter of the configuration if it
 99   
      * extends AbstractConfiguration, and a comma otherwise.
 100   
      *
 101   
      * @param config Configuration object to convert
 102   
      * @return Properties created from the Configuration
 103   
      */
 104   
     public static Properties getProperties(Configuration config)
 105   
     {
 106  6 
         Properties props = new Properties();
 107   
 
 108  6 
         char delimiter = (config instanceof AbstractConfiguration)
 109   
             ? ((AbstractConfiguration) config).getDelimiter() : ',';
 110   
 
 111  6 
         Iterator keys = config.getKeys();
 112  36 
         while (keys.hasNext())
 113   
         {
 114  24 
             String key = (String) keys.next();
 115  24 
             List list = config.getList(key);
 116   
 
 117   
             // turn the list into a string
 118  24 
             props.setProperty(key, StringUtils.join(list.iterator(), delimiter));
 119   
         }
 120   
 
 121  6 
         return props;
 122   
     }
 123   
 
 124   
     /**
 125   
      * Convert a Configuration class into a Map class.
 126   
      *
 127   
      * @param config Configuration object to convert
 128   
      * @return Map created from the Configuration
 129   
      */
 130   
     public static Map getMap(Configuration config)
 131   
     {
 132  3 
         return new ConfigurationMap(config);
 133   
     }
 134   
 
 135   
 }

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