bundles/org.simantics.utils/src/org/simantics/utils/Development.java

   1 package org.simantics.utils;\r
   2 \r
   3 import java.util.HashMap;\r
   4 import java.util.Map;\r
   5 import java.util.TreeMap;\r
   6 import java.util.concurrent.CopyOnWriteArrayList;\r
   7 \r
   8 import org.simantics.databoard.Bindings;\r
   9 import org.simantics.databoard.adapter.AdaptException;\r
  10 import org.simantics.databoard.binding.Binding;\r
  11 import org.simantics.databoard.binding.error.BindingException;\r
  12 import org.simantics.databoard.binding.mutable.Variant;\r
  13 \r
  14 public class Development {\r
  15 \r
  16         public static TreeMap<String,Integer> histogram = new TreeMap<String,Integer>();\r
  17 \r
  18         public static final boolean DEVELOPMENT = false;\r
  19         \r
  20         public static final String PRINT = "Development.print";\r
  21 \r
  22         public interface DevelopmentListener {\r
  23                 \r
  24                 void handle(Object event);\r
  25                 \r
  26         }\r
  27         \r
  28         final static private HashMap<String, Variant> properties = new HashMap<String, Variant>(); \r
  29         \r
  30         final static private CopyOnWriteArrayList<DevelopmentListener> listeners = new CopyOnWriteArrayList<DevelopmentListener>();\r
  31 \r
  32         static {\r
  33                 \r
  34                 if(DEVELOPMENT) {\r
  35                         listeners.add(new DevelopmentListener() {\r
  36         \r
  37                                 @Override\r
  38                                 public void handle(Object event) {\r
  39                                         if((Boolean) getProperty(PRINT, Bindings.BOOLEAN))\r
  40                                                 System.err.println(event.toString());\r
  41                                 }\r
  42         \r
  43                         });\r
  44                 }\r
  45 \r
  46         }\r
  47         \r
  48         public static void addListener(DevelopmentListener listener) {\r
  49                 listeners.add(listener);\r
  50         }\r
  51         \r
  52         public static void removeListener(DevelopmentListener listener) {\r
  53                 listeners.remove(listener);\r
  54         }\r
  55         \r
  56         public static void dispatchEvent(Object event) {\r
  57                 for(DevelopmentListener listener : listeners) {\r
  58                         listener.handle(event);\r
  59                 }\r
  60         }\r
  61         \r
  62         \r
  63         public static void setProperty(String name, Object value, Binding binding) {\r
  64                 assert(name != null);\r
  65                 assert(binding != null);\r
  66                 try {\r
  67                         binding.assertInstaceIsValid(value);\r
  68                 } catch (BindingException e) {\r
  69                         throw new RuntimeException(e);\r
  70                 }\r
  71                 properties.put(name, new Variant(binding, value));\r
  72         }\r
  73 \r
  74         @SuppressWarnings("unchecked")\r
  75         public static <T> T getProperty(String name, Binding binding) {\r
  76                 Variant value = properties.get(name);\r
  77                 if(value == null) return null;\r
  78                 try {\r
  79                         return (T)value.getValue(binding);\r
  80                 } catch (AdaptException e) {\r
  81                         throw new RuntimeException(e);\r
  82                 }\r
  83         }\r
  84         \r
  85         public static boolean isTrue(String name) {\r
  86                 Boolean value = getProperty(name, Bindings.BOOLEAN);\r
  87                 return value != null && value;\r
  88         }\r
  89         \r
  90         public static Map<String, Variant> getProperties() {\r
  91                 return properties;\r
  92         }\r
  93         \r
  94         public static void recordHistogram(Object o) {\r
  95                 String key = o.toString();\r
  96                 Integer i = Development.histogram.get(key);\r
  97                 if(i == null) i = 0;\r
  98                 Development.histogram.put(key, i+1);\r
  99         }\r
 100         \r
 101 }\r