net.mograsim.logic.ui/src/net/mograsim/logic/ui/model/components/GUIComponentCreator.java

   1 package net.mograsim.logic.ui.model.components;
   2
   3 import java.io.IOException;
   4 import java.lang.reflect.Constructor;
   5 import java.lang.reflect.InvocationTargetException;
   6 import java.util.HashMap;
   7 import java.util.Map;
   8
   9 import net.mograsim.logic.ui.model.ViewModelModifiable;
  10 import net.mograsim.logic.ui.model.wires.WireCrossPoint;
  11 import net.mograsim.logic.ui.util.JsonHandler;
  12
  13 public class GUIComponentCreator
  14 {
  15         private final static Map<String, String> componentMapping;
  16         private final static String componentMappingPath = "../net.mograsim.logic.ui.am2900/components/mapping.json"; // TODO: manage this
  17                                                                                                                                                                                                                                         // somewhere else
  18
  19         static
  20         {
  21                 Map<String, String> tmp;
  22                 try
  23                 {
  24                         tmp = JsonHandler.readJson(componentMappingPath, Map.class);
  25                 }
  26                 catch (IOException e)
  27                 {
  28                         System.err.println("Failed to initialize component mapping; Components cannot be created from file.");
  29                         e.printStackTrace();
  30                         tmp = new HashMap<>();
  31                 }
  32                 componentMapping = tmp;
  33         }
  34
  35         public static GUIComponent create(ViewModelModifiable model, String name, Map<String, Object> params)
  36         {
  37                 try
  38                 {
  39                         String path = componentMapping.get(name);
  40                         if (path.startsWith("class:"))
  41                         {
  42                                 path = path.substring(6);
  43                                 return createComponentFromClass(model, path, params);
  44                         } else if (path.startsWith("file:"))
  45                         {
  46                                 path = path.substring(5);
  47                                 return GUICustomComponentCreator.create(model, path);
  48                         } else
  49                                 throw new IllegalArgumentException("Invalid submodel type! Type was neither prefixed by 'class:' nor by 'file:'");
  50                 }
  51                 catch (NullPointerException | InstantiationException | IllegalAccessException | InvocationTargetException | NoSuchMethodException
  52                                 | SecurityException | ClassNotFoundException | IllegalArgumentException e)
  53                 {
  54                         System.err.println("Failed to create requested component!");
  55                         e.printStackTrace();
  56                         return new SimpleRectangularSubmodelComponent(model, 1, "ERROR");
  57                 }
  58         }
  59
  60         private static GUIComponent createComponentFromClass(ViewModelModifiable model, String classname, Map<String, Object> params)
  61                         throws InstantiationException, IllegalAccessException, InvocationTargetException, NoSuchMethodException, SecurityException,
  62                         ClassNotFoundException
  63         {
  64                 Class<?> c = Class.forName(classname);
  65                 Object comp;
  66                 if (SimpleRectangularGUIGate.class.isAssignableFrom(c) || WireCrossPoint.class.equals(c))
  67                 {
  68                         Constructor<?> constructor = c.getConstructor(ViewModelModifiable.class, int.class);
  69                         comp = constructor.newInstance(model, ((Number) params.get(SimpleRectangularGUIGate.kLogicWidth)).intValue());
  70                 } else
  71                 {
  72                         Constructor<?> constructor = c.getConstructor(ViewModelModifiable.class);
  73                         comp = constructor.newInstance(model);
  74                 }
  75                 return (GUIComponent) comp;
  76         }
  77 }