src/main/java/jp/sourceforge/stigmata/hook/StigmataHookManager.java

   1 package jp.sourceforge.stigmata.hook;
   2
   3 /*
   4  * $Id$
   5  */
   6
   7 import java.util.Iterator;
   8
   9 import jp.sourceforge.stigmata.BirthmarkContext;
  10 import jp.sourceforge.stigmata.BirthmarkEnvironment;
  11 import jp.sourceforge.stigmata.spi.StigmataHookSpi;
  12
  13 /**
  14  *
  15  * @author Haruaki Tamada
  16  */
  17 public class StigmataHookManager{
  18     private static final StigmataHookManager manager = new StigmataHookManager();
  19
  20     /**
  21      * private constructor for singleton pattern.
  22      */
  23     private StigmataHookManager(){
  24     }
  25
  26     public static StigmataHookManager getInstance(){
  27         return manager;
  28     }
  29
  30     public void runHook(Phase phase, BirthmarkContext context){
  31         StigmataRuntimeHook hook = buildHook(phase, context.getEnvironment());
  32         hook.onHook(phase, context);
  33     }
  34
  35     public void runHook(Phase phase, BirthmarkEnvironment env){
  36         StigmataHook hook = buildHook(phase, env);
  37         hook.onHook(phase, env);
  38     }
  39
  40     private MultipleStigmataHook buildHook(Phase phase, BirthmarkEnvironment env){
  41         MultipleStigmataHook hooks = new MultipleStigmataHook();
  42
  43         for(Iterator<StigmataHookSpi> i = env.lookupProviders(StigmataHookSpi.class); i.hasNext(); ){
  44             StigmataHookSpi service = i.next();
  45
  46             switch(phase){
  47             case SETUP:
  48                 hooks.addHook(service.onSetup());
  49                 break;
  50             case TEAR_DOWN:
  51                 hooks.addHook(service.onTearDown());
  52                 break;
  53             case BEFORE_EXTRACTION:
  54                 hooks.addRuntimeHook(service.beforeExtraction());
  55                 break;
  56             case AFTER_EXTRACTION:
  57                 hooks.addRuntimeHook(service.afterExtraction());
  58                 break;
  59             case BEFORE_COMPARISON:
  60                 hooks.addRuntimeHook(service.beforeComparison());
  61                 break;
  62             case AFTER_COMPARISON:
  63                 hooks.addRuntimeHook(service.afterComparison());
  64                 break;
  65             case BEFORE_FILTERING:
  66                 hooks.addRuntimeHook(service.beforeFiltering());
  67                 break;
  68             case AFTER_FILTERING:
  69                 hooks.addRuntimeHook(service.afterFiltering());
  70                 break;
  71             default:
  72                 throw new InternalError("invalid phase: " + phase);
  73             }
  74         }
  75         return hooks;
  76     }
  77 }