Coverage report

  %line %branch
org.apache.commons.jelly.tags.threads.UseMutexTag
78% 
100% 

 1  
 /*
 2  
  * Copyright 2002,2004 The Apache Software Foundation.
 3  
  *
 4  
  * Licensed under the Apache License, Version 2.0 (the "License");
 5  
  * you may not use this file except in compliance with the License.
 6  
  * You may obtain a copy of the License at
 7  
  *
 8  
  *      http://www.apache.org/licenses/LICENSE-2.0
 9  
  *
 10  
  * Unless required by applicable law or agreed to in writing, software
 11  
  * distributed under the License is distributed on an "AS IS" BASIS,
 12  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13  
  * See the License for the specific language governing permissions and
 14  
  * limitations under the License.
 15  
  */
 16  
 
 17  
 package org.apache.commons.jelly.tags.threads;
 18  
 
 19  
 import org.apache.commons.jelly.JellyTagException;
 20  
 import org.apache.commons.jelly.TagSupport;
 21  
 import org.apache.commons.jelly.XMLOutput;
 22  
 
 23  
 /**
 24  
  * Base class for tags that will "use" mutexes.
 25  
  *
 26  
  * @author <a href="mailto:jason@jhorman.org">Jason Horman</a>
 27  
  */
 28  
 
 29  104
 public abstract class UseMutexTag extends TagSupport {
 30  
     /** The mutex to use in some way. */
 31  52
     private Object mutex = null;
 32  
 
 33  
     /** Calls useMutex after checking to make sure that <i>setMutex</i> was called */
 34  
     public void doTag(XMLOutput output) throws JellyTagException {
 35  
         // either use the set thread or search for a parent thread to use
 36  52
         if (mutex == null) {
 37  0
             throw new JellyTagException("no mutex set");
 38  
         }
 39  
 
 40  52
         useMutex(mutex, output);
 41  52
     }
 42  
 
 43  
     /** Implement this method to do something with the mutex */
 44  
     protected abstract void useMutex(Object mutex, XMLOutput output) throws JellyTagException;
 45  
 
 46  
     /** Get the mutex */
 47  
     public Object getMutex() {
 48  0
         return mutex;
 49  
     }
 50  
 
 51  
     /** Set the mutex. Any object can be used as a mutex. */
 52  
     public void setMutex(Object mutex) {
 53  52
         this.mutex = mutex;
 54  52
     }
 55  
 }

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