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