Coverage Report - com.puppycrawl.tools.checkstyle.PropertiesExpander
 
Classes in this File Line Coverage Branch Coverage Complexity
PropertiesExpander
83%
5/6
50%
1/2
2
 
 1  
 ////////////////////////////////////////////////////////////////////////////////
 2  
 // checkstyle: Checks Java source code for adherence to a set of rules.
 3  
 // Copyright (C) 2001-2014  Oliver Burn
 4  
 //
 5  
 // This library is free software; you can redistribute it and/or
 6  
 // modify it under the terms of the GNU Lesser General Public
 7  
 // License as published by the Free Software Foundation; either
 8  
 // version 2.1 of the License, or (at your option) any later version.
 9  
 //
 10  
 // This library is distributed in the hope that it will be useful,
 11  
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 12  
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 13  
 // Lesser General Public License for more details.
 14  
 //
 15  
 // You should have received a copy of the GNU Lesser General Public
 16  
 // License along with this library; if not, write to the Free Software
 17  
 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 18  
 ////////////////////////////////////////////////////////////////////////////////
 19  
 package com.puppycrawl.tools.checkstyle;
 20  
 
 21  
 import java.util.Properties;
 22  
 
 23  
 /**
 24  
  * Resolves external properties from an
 25  
  * underlying <code>Properties</code> object.
 26  
  *
 27  
  * @author lkuehne
 28  
  */
 29  
 public final class PropertiesExpander
 30  
     implements PropertyResolver
 31  
 {
 32  
     /** the underlying Properties object. */
 33  
     private final Properties mProperties;
 34  
 
 35  
     /**
 36  
      * Creates a new PropertiesExpander.
 37  
      * @param aProperties the underlying properties to use for
 38  
      * property resolution.
 39  
      * @throws IllegalArgumentException indicates null was passed
 40  
      */
 41  
     public PropertiesExpander(Properties aProperties)
 42  35
     {
 43  35
         if (aProperties == null) {
 44  0
             throw new IllegalArgumentException("cannot pass null");
 45  
         }
 46  35
         mProperties = aProperties;
 47  35
     }
 48  
 
 49  
     /** {@inheritDoc} */
 50  
     public String resolve(String aPropertyName)
 51  
     {
 52  25
         return mProperties.getProperty(aPropertyName);
 53  
     }
 54  
 }