Coverage Report - org.apache.tapestry.services.impl.ComponentPropertySourceImpl
 
Classes in this File Line Coverage Branch Coverage Complexity
ComponentPropertySourceImpl
0%
0/52
0%
0/12
1.308
 
 1  
 // Copyright 2005 The Apache Software Foundation
 2  
 //
 3  
 // Licensed under the Apache License, Version 2.0 (the "License");
 4  
 // you may not use this file except in compliance with the License.
 5  
 // You may obtain a copy of the License at
 6  
 //
 7  
 //     http://www.apache.org/licenses/LICENSE-2.0
 8  
 //
 9  
 // Unless required by applicable law or agreed to in writing, software
 10  
 // distributed under the License is distributed on an "AS IS" BASIS,
 11  
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 12  
 // See the License for the specific language governing permissions and
 13  
 // limitations under the License.
 14  
 
 15  
 package org.apache.tapestry.services.impl;
 16  
 
 17  
 import edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap;
 18  
 import org.apache.hivemind.Resource;
 19  
 import org.apache.hivemind.lib.chain.ChainBuilder;
 20  
 import org.apache.tapestry.IComponent;
 21  
 import org.apache.tapestry.INamespace;
 22  
 import org.apache.tapestry.engine.IPropertySource;
 23  
 import org.apache.tapestry.event.ResetEventListener;
 24  
 import org.apache.tapestry.services.ComponentPropertySource;
 25  
 import org.apache.tapestry.spec.IComponentSpecification;
 26  
 import org.apache.tapestry.util.PropertyHolderPropertySource;
 27  
 
 28  
 import java.util.ArrayList;
 29  
 import java.util.List;
 30  
 import java.util.Locale;
 31  
 import java.util.Map;
 32  
 
 33  
 /**
 34  
  * Implementation of tapestry.props.ComponentPropertySource.
 35  
  * <p>
 36  
  * TODO: Figure out a testing strategy for this beast!
 37  
  *
 38  
  * @author Howard M. Lewis Ship
 39  
  * @since 4.0
 40  
  */
 41  0
 public class ComponentPropertySourceImpl implements ComponentPropertySource, ResetEventListener
 42  
 {
 43  
     private IPropertySource _globalProperties;
 44  
 
 45  
     private ChainBuilder _chainBuilder;
 46  
 
 47  0
     private Map _componentSources = new ConcurrentHashMap();
 48  
 
 49  0
     private Map _localizedComponentSources = new ConcurrentHashMap();
 50  
 
 51  0
     private Map _namespaceSources = new ConcurrentHashMap();
 52  
 
 53  0
     private Map _localizedNamespaceSources = new ConcurrentHashMap();
 54  
 
 55  
     public void resetEventDidOccur()
 56  
     {
 57  0
         _componentSources.clear();
 58  0
         _localizedComponentSources.clear();
 59  0
         _namespaceSources.clear();
 60  0
         _localizedNamespaceSources.clear();
 61  0
     }
 62  
 
 63  
     private IPropertySource getSourceForNamespace(INamespace namespace)
 64  
     {
 65  0
         Resource key = namespace.getSpecificationLocation();
 66  
 
 67  0
         IPropertySource result = (IPropertySource) _namespaceSources.get(key);
 68  
 
 69  0
         if (result == null)
 70  
         {
 71  0
             result = createSourceForNamespace(namespace);
 72  
 
 73  0
             _namespaceSources.put(key, result);
 74  
         }
 75  
 
 76  0
         return result;
 77  
     }
 78  
 
 79  
     private IPropertySource getSourceForComponent(IComponent component)
 80  
     {
 81  0
         Resource key = component.getSpecification().getSpecificationLocation();
 82  
 
 83  0
         IPropertySource result = (IPropertySource) _componentSources.get(key);
 84  
 
 85  0
         if (result == null)
 86  
         {
 87  0
             result = createSourceForComponent(component);
 88  0
             _componentSources.put(key, result);
 89  
         }
 90  
 
 91  0
         return result;
 92  
     }
 93  
 
 94  
     private LocalizedPropertySource getLocalizedSourceForComponent(IComponent component)
 95  
     {
 96  0
         Resource key = component.getSpecification().getSpecificationLocation();
 97  
 
 98  0
         LocalizedPropertySource result = (LocalizedPropertySource) _localizedComponentSources.get(key);
 99  
 
 100  0
         if (result == null)
 101  
         {
 102  0
             result = new LocalizedPropertySource(getSourceForComponent(component));
 103  
 
 104  0
             _localizedComponentSources.put(key, result);
 105  
         }
 106  
 
 107  0
         return result;
 108  
     }
 109  
 
 110  
     private LocalizedPropertySource getLocalizedSourceForNamespace(INamespace namespace)
 111  
     {
 112  0
         Resource key = namespace.getSpecificationLocation();
 113  
 
 114  0
         LocalizedPropertySource result = (LocalizedPropertySource) _localizedNamespaceSources.get(key);
 115  
 
 116  0
         if (result == null)
 117  
         {
 118  0
             result = new LocalizedPropertySource(getSourceForNamespace(namespace));
 119  
 
 120  0
             _localizedNamespaceSources.put(key, result);
 121  
         }
 122  
 
 123  0
         return result;
 124  
     }
 125  
 
 126  
     private IPropertySource createSourceForComponent(IComponent component)
 127  
     {
 128  0
         IComponentSpecification specification = component.getSpecification();
 129  
 
 130  0
         List sources = new ArrayList();
 131  
 
 132  0
         sources.add(new PropertyHolderPropertySource(specification));
 133  0
         sources.add(getSourceForNamespace(component.getNamespace()));
 134  
 
 135  0
         return (IPropertySource) _chainBuilder.buildImplementation(
 136  0
           IPropertySource.class,
 137  
           sources,
 138  
           ImplMessages.componentPropertySourceDescription(specification));
 139  
     }
 140  
 
 141  
     private IPropertySource createSourceForNamespace(INamespace namespace)
 142  
     {
 143  0
         List sources = new ArrayList();
 144  
 
 145  0
         sources.add(new PropertyHolderPropertySource(namespace.getSpecification()));
 146  0
         sources.add(_globalProperties);
 147  
 
 148  0
         return (IPropertySource) _chainBuilder.buildImplementation(IPropertySource.class,
 149  
                                                                    sources,
 150  
                                                                    ImplMessages.namespacePropertySourceDescription(namespace));
 151  
     }
 152  
 
 153  
     public String getComponentProperty(IComponent component, String propertyName)
 154  
     {
 155  0
         return getSourceForComponent(component).getPropertyValue(propertyName);
 156  
     }
 157  
 
 158  
     public String getLocalizedComponentProperty(IComponent component, Locale locale, String propertyName)
 159  
     {
 160  0
         return getLocalizedSourceForComponent(component).getPropertyValue(propertyName, locale);
 161  
     }
 162  
 
 163  
     public String getNamespaceProperty(INamespace namespace, String propertyName)
 164  
     {
 165  0
         return getSourceForNamespace(namespace).getPropertyValue(propertyName);
 166  
     }
 167  
 
 168  
     public String getLocalizedNamespaceProperty(INamespace namespace, Locale locale, String propertyName)
 169  
     {
 170  0
         return getLocalizedSourceForNamespace(namespace).getPropertyValue(propertyName, locale);
 171  
     }
 172  
 
 173  
     public void setChainBuilder(ChainBuilder chainBuilder)
 174  
     {
 175  0
         _chainBuilder = chainBuilder;
 176  0
     }
 177  
 
 178  
     public void setGlobalProperties(IPropertySource globalProperties)
 179  
     {
 180  0
         _globalProperties = globalProperties;
 181  0
     }
 182  
 }