Coverage Report - org.webmacro.engine.MacroBuildContext
 
Classes in this File Line Coverage Branch Coverage Complexity
MacroBuildContext
0%
0/20
0%
0/10
1.833
 
 1  
 /*
 2  
  * Copyright (C) 1998-2000 Semiotek Inc.  All Rights Reserved.
 3  
  *
 4  
  * Redistribution and use in source and binary forms, with or without
 5  
  * modification, are permitted under the terms of either of the following
 6  
  * Open Source licenses:
 7  
  *
 8  
  * The GNU General Public License, version 2, or any later version, as
 9  
  * published by the Free Software Foundation
 10  
  * (http://www.fsf.org/copyleft/gpl.html);
 11  
  *
 12  
  *  or
 13  
  *
 14  
  * The Semiotek Public License (http://webmacro.org/LICENSE.)
 15  
  *
 16  
  * This software is provided "as is", with NO WARRANTY, not even the
 17  
  * implied warranties of fitness to purpose, or merchantability. You
 18  
  * assume all risks and liabilities associated with its use.
 19  
  *
 20  
  * See www.webmacro.org for more information on the WebMacro project.
 21  
  */
 22  
 
 23  
 
 24  
 package org.webmacro.engine;
 25  
 
 26  
 import org.webmacro.PropertyException;
 27  
 
 28  
 import java.util.HashMap;
 29  
 import java.util.Map;
 30  
 
 31  
 /**
 32  
  * A chained build context, for use in expanding macros.
 33  
  * When called upon to evaluate a reference which is one of the macros
 34  
  * formals, it evaluates the actual argument and returns that, otherwise
 35  
  * it chains back to the build context.
 36  
  */
 37  
 public class MacroBuildContext extends BuildContext
 38  
 {
 39  
 
 40  
     private BuildContext chainedContext, rootContext;
 41  
     private MacroDefinition macro;
 42  
     private Object[] args;
 43  0
     private Map macroArgs = new HashMap();
 44  
 
 45  
     public MacroBuildContext (MacroDefinition macroP,
 46  
                               Object[] argsP,
 47  
                               BuildContext bc)
 48  
     {
 49  0
         super(bc.getBroker());
 50  0
         this.chainedContext = bc;
 51  0
         this.args = argsP;
 52  0
         this.macro = macroP;
 53  0
         String[] argNames = macro.getArgNames();
 54  0
         for (int i = 0; i < argNames.length; i++)
 55  0
             macroArgs.put(argNames[i], args[i]);
 56  
 
 57  0
         rootContext = chainedContext;
 58  0
         while (rootContext instanceof MacroBuildContext)
 59  0
             rootContext = ((MacroBuildContext) rootContext).chainedContext;
 60  0
     }
 61  
 
 62  
     public BuildContext getRootContext ()
 63  
     {
 64  0
         return rootContext;
 65  
     }
 66  
 
 67  
     public void putMacro (String name, MacroDefinition macro)
 68  
     {
 69  0
         rootContext.putMacro(name, macro);
 70  0
     }
 71  
 
 72  
     public MacroDefinition getMacro (String name)
 73  
     {
 74  0
         return rootContext.getMacro(name);
 75  
     }
 76  
 
 77  
     public boolean containsKey (Object name)
 78  
     {
 79  0
         return macroArgs.containsKey(name) || chainedContext.containsKey(name);
 80  
     }
 81  
 
 82  
     protected Object internalGet (Object name) throws PropertyException
 83  
     {
 84  0
         if (macroArgs.containsKey(name))
 85  0
             return macroArgs.get(name);
 86  
         else
 87  
         {
 88  0
             return rootContext.get(name);
 89  
         }
 90  
     }
 91  
 }
 92