Clover coverage report - Code Coverage for hivemind-lib release 1.1-beta-1
Coverage timestamp: Thu Apr 28 2005 19:55:00 EDT
file stats: LOC: 101   Methods: 4
NCLOC: 61   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
DefaultImplementationBuilderImpl.java 100% 95.2% 100% 97%
coverage coverage
 1   
 // Copyright 2004, 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.hivemind.lib.impl;
 16   
 
 17   
 import java.util.Collections;
 18   
 import java.util.HashMap;
 19   
 import java.util.Map;
 20   
 
 21   
 import org.apache.hivemind.ApplicationRuntimeException;
 22   
 import org.apache.hivemind.impl.BaseLocatable;
 23   
 import org.apache.hivemind.lib.DefaultImplementationBuilder;
 24   
 import org.apache.hivemind.service.ClassFab;
 25   
 import org.apache.hivemind.service.ClassFabUtils;
 26   
 import org.apache.hivemind.service.ClassFactory;
 27   
 import org.apache.hivemind.service.MethodIterator;
 28   
 
 29   
 /**
 30   
  * Implemenation of {@link org.apache.hivemind.lib.DefaultImplementationBuilder}.
 31   
  * 
 32   
  * @author Howard Lewis Ship
 33   
  */
 34   
 public class DefaultImplementationBuilderImpl extends BaseLocatable implements
 35   
         DefaultImplementationBuilder
 36   
 {
 37   
     private Map _instances = Collections.synchronizedMap(new HashMap());
 38   
 
 39   
     private ClassFactory _classFactory;
 40   
 
 41  10
     public Object buildDefaultImplementation(Class interfaceType)
 42   
     {
 43  10
         Object result = _instances.get(interfaceType);
 44   
 
 45  10
         if (result == null)
 46   
         {
 47  9
             result = create(interfaceType);
 48   
 
 49  8
             _instances.put(interfaceType, result);
 50   
         }
 51   
 
 52  9
         return result;
 53   
     }
 54   
 
 55  9
     private Object create(Class interfaceType)
 56   
     {
 57  9
         Class defaultClass = createClass(interfaceType);
 58   
 
 59  8
         try
 60   
         {
 61  8
             return defaultClass.newInstance();
 62   
         }
 63   
         catch (Exception ex)
 64   
         {
 65  0
             throw new ApplicationRuntimeException(ImplMessages.unableToCreateDefaultImplementation(
 66   
                     interfaceType,
 67   
                     ex), ex);
 68   
         }
 69   
     }
 70   
 
 71  9
     private Class createClass(Class interfaceType)
 72   
     {
 73  9
         if (!interfaceType.isInterface())
 74  1
             throw new ApplicationRuntimeException(ImplMessages.notAnInterface(interfaceType));
 75   
 
 76  8
         String name = ClassFabUtils.generateClassName(interfaceType);
 77   
 
 78  8
         ClassFab cf = _classFactory.newClass(name, Object.class);
 79   
 
 80  8
         cf.addInterface(interfaceType);
 81   
 
 82  8
         MethodIterator mi = new MethodIterator(interfaceType);
 83   
 
 84  8
         while (mi.hasNext())
 85   
         {
 86  10
             ClassFabUtils.addNoOpMethod(cf, mi.next());
 87   
         }
 88   
 
 89  8
         if (!mi.getToString())
 90  7
             ClassFabUtils.addToStringMethod(cf, ImplMessages
 91   
                     .defaultImplementationDescription(interfaceType));
 92   
 
 93  8
         return cf.createClass();
 94   
     }
 95   
 
 96  14
     public void setClassFactory(ClassFactory factory)
 97   
     {
 98  14
         _classFactory = factory;
 99   
     }
 100   
 
 101   
 }