Coverage Report - org.apache.maven.shared.filtering.CompositeMap
 
Classes in this File Line Coverage Branch Coverage Complexity
CompositeMap
0%
0/33
0%
0/24
2,5
 
 1  
 package org.apache.maven.shared.filtering;
 2  
 
 3  
 /*
 4  
  * Licensed to the Apache Software Foundation (ASF) under one
 5  
  * or more contributor license agreements.  See the NOTICE file
 6  
  * distributed with this work for additional information
 7  
  * regarding copyright ownership.  The ASF licenses this file
 8  
  * to you under the Apache License, Version 2.0 (the
 9  
  * "License"); you may not use this file except in compliance
 10  
  * with the License.  You may obtain a copy of the License at
 11  
  *
 12  
  *    http://www.apache.org/licenses/LICENSE-2.0
 13  
  *
 14  
  * Unless required by applicable law or agreed to in writing,
 15  
  * software distributed under the License is distributed on an
 16  
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 17  
  * KIND, either express or implied.  See the License for the
 18  
  * specific language governing permissions and limitations
 19  
  * under the License.
 20  
  */
 21  
 
 22  
 import java.util.AbstractMap;
 23  
 import java.util.ArrayList;
 24  
 import java.util.Iterator;
 25  
 import java.util.List;
 26  
 import java.util.Map;
 27  
 import java.util.Set;
 28  
 
 29  
 /**
 30  
  * A Map composed with some others (optional adding SystemProperties and envvar).
 31  
  * The get method look in the Map list to return the corresponding value.
 32  
  *
 33  
  * @author <a href="mailto:olamy@apache.org">olamy</a>
 34  
  * @version $Id: CompositeMap.java 1055685 2011-01-05 23:14:08Z dennisl $
 35  
  */
 36  
 public class CompositeMap
 37  
     extends AbstractMap
 38  
 {
 39  
     
 40  
     private List /*Map*/maps;
 41  
 
 42  
     private boolean systemPropertiesFirst;
 43  
 
 44  
     /**
 45  
      * 
 46  
      * @param maps
 47  
      */
 48  
     public CompositeMap( List /* Map */maps )
 49  
     {
 50  0
         this( maps, false, false );
 51  0
     }
 52  
 
 53  
     /**
 54  
      * @param maps an ordered {@link List} of {@link Map}
 55  
      * @param useSystemProperties using or not the System Properties
 56  
      * @param systemPropertiesFirst if with get( key ) the sysProps must win (the internal ordered {@link List} 
 57  
      *        will have in first the System Properties)
 58  
      */
 59  
     public CompositeMap( List /*Map*/maps, boolean useSystemProperties, boolean systemPropertiesFirst )
 60  0
     {
 61  0
         this.systemPropertiesFirst = systemPropertiesFirst;
 62  0
         if ( systemPropertiesFirst && !useSystemProperties )
 63  
         {
 64  0
             throw new IllegalArgumentException( "systemPropertiesFirst can't be true if useSystemProperties is false" );
 65  
         }
 66  0
         this.maps = new ArrayList();
 67  0
         if ( useSystemProperties && !systemPropertiesFirst )
 68  
         {
 69  0
             if ( maps != null )
 70  
             {
 71  0
                 this.maps.addAll( maps );
 72  
             }
 73  0
             this.maps.add( System.getProperties() );
 74  
         }
 75  0
         else if ( useSystemProperties && systemPropertiesFirst )
 76  
         {
 77  0
             this.maps.add( System.getProperties() );
 78  0
             if ( maps != null )
 79  
             {
 80  0
                 this.maps.addAll( maps );
 81  
             }
 82  
         }
 83  
         else
 84  
         {
 85  0
             if ( maps != null )
 86  
             {
 87  0
                 this.maps.addAll( maps );
 88  
             }
 89  
         }
 90  0
     }
 91  
 
 92  
     public Object get( Object key )
 93  
     {
 94  0
         if ( this.maps != null )
 95  
         {
 96  0
             for ( Iterator iterator = this.maps.iterator(); iterator.hasNext(); )
 97  
             {
 98  0
                 Map map = (Map) iterator.next();
 99  0
                 Object value = map.get( key );
 100  0
                 if ( value != null )
 101  
                 {
 102  0
                     return value;
 103  
                 }
 104  0
             }
 105  
         }
 106  0
         return null;
 107  
     }
 108  
 
 109  
     /** 
 110  
      * @see java.util.AbstractMap#entrySet()
 111  
      */
 112  
     public Set entrySet()
 113  
     {
 114  0
         throw new UnsupportedOperationException( "Cannot enumerate properties in a composite map" );
 115  
     }
 116  
 
 117  
     public List getMaps()
 118  
     {
 119  0
         return maps;
 120  
     }
 121  
 
 122  
     public void addMap( Map map )
 123  
     {
 124  
         // see constructors internal Map can't be null
 125  0
         this.maps.add( map );
 126  0
     }
 127  
 
 128  
     public boolean isSystemPropertiesFirst()
 129  
     {
 130  0
         return systemPropertiesFirst;
 131  
     }
 132  
 
 133  
     public void setSystemPropertiesFirst( boolean systemPropertiesFirst )
 134  
     {
 135  0
         this.systemPropertiesFirst = systemPropertiesFirst;
 136  0
     }
 137  
 
 138  
 }