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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