Clover coverage report - Code Coverage for tapestry release 4.0-alpha-3
Coverage timestamp: Mon May 16 2005 09:05:49 EDT
file stats: LOC: 86   Methods: 5
NCLOC: 47   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
ListenerMapImpl.java 100% 100% 100% 100%
coverage
 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.listener;
 16   
 
 17   
 import java.util.Collection;
 18   
 import java.util.Collections;
 19   
 import java.util.HashMap;
 20   
 import java.util.Map;
 21   
 
 22   
 import org.apache.hivemind.ApplicationRuntimeException;
 23   
 import org.apache.hivemind.util.Defense;
 24   
 import org.apache.tapestry.IActionListener;
 25   
 
 26   
 /**
 27   
  * @author Howard M. Lewis Ship
 28   
  * @since 4.0
 29   
  */
 30   
 public class ListenerMapImpl implements ListenerMap
 31   
 {
 32   
     private final Object _target;
 33   
 
 34   
     /**
 35   
      * Keyed on String method name, value is
 36   
      * {@link org.apache.tapestry.listener.ListenerMethodInvoker}.
 37   
      */
 38   
 
 39   
     private final Map _invokers;
 40   
 
 41   
     private final Map _listeners = new HashMap();
 42   
 
 43  40
     public ListenerMapImpl(Object target, Map invokers)
 44   
     {
 45  40
         Defense.notNull(target, "target");
 46  40
         Defense.notNull(invokers, "invokers");
 47   
 
 48  40
         _target = target;
 49  40
         _invokers = invokers;
 50   
     }
 51   
 
 52  9
     public boolean canProvideListener(String name)
 53   
     {
 54  9
         return _invokers.containsKey(name);
 55   
     }
 56   
 
 57  45
     public synchronized IActionListener getListener(String name)
 58   
     {
 59  45
         IActionListener result = (IActionListener) _listeners.get(name);
 60   
 
 61  45
         if (result == null)
 62   
         {
 63  41
             result = createListener(name);
 64  40
             _listeners.put(name, result);
 65   
         }
 66   
 
 67  44
         return result;
 68   
     }
 69   
 
 70  41
     private IActionListener createListener(String name)
 71   
     {
 72  41
         ListenerMethodInvoker invoker = (ListenerMethodInvoker) _invokers.get(name);
 73   
 
 74  41
         if (invoker == null)
 75  1
             throw new ApplicationRuntimeException(ListenerMessages.objectMissingMethod(
 76   
                     _target,
 77   
                     name), _target, null, null);
 78   
 
 79  40
         return new SyntheticListener(_target, invoker);
 80   
     }
 81   
 
 82  2
     public Collection getListenerNames()
 83   
     {
 84  2
         return Collections.unmodifiableCollection(_invokers.keySet());
 85   
     }
 86   
 }