net.mograsim.logic.model/src/net/mograsim/logic/model/snippets/highlevelstatehandlers/standard/atomic/DelegatingAtomicHighLevelStateHandler.java

   1 package net.mograsim.logic.model.snippets.highlevelstatehandlers.standard.atomic;
   2
   3 import net.mograsim.logic.model.model.components.ModelComponent;
   4 import net.mograsim.logic.model.model.components.submodels.SubmodelComponent;
   5 import net.mograsim.logic.model.serializing.IdentifyParams;
   6 import net.mograsim.logic.model.snippets.SnippetDefinintion;
   7 import net.mograsim.logic.model.snippets.highlevelstatehandlers.standard.HighLevelStateHandlerContext;
   8 import net.mograsim.logic.model.snippets.highlevelstatehandlers.standard.StandardHighLevelStateHandlerSnippetSuppliers;
   9
  10 public class DelegatingAtomicHighLevelStateHandler implements AtomicHighLevelStateHandler
  11 {
  12         private final SubmodelComponent parentComponent;
  13         private ModelComponent delegateTarget;
  14         private String subStateID;
  15
  16         public DelegatingAtomicHighLevelStateHandler(HighLevelStateHandlerContext context)
  17         {
  18                 this(context, null);
  19         }
  20
  21         public DelegatingAtomicHighLevelStateHandler(HighLevelStateHandlerContext context, DelegatingAtomicHighLevelStateHandlerParams params)
  22         {
  23                 this.parentComponent = context.component;
  24                 if (params != null)
  25                 {
  26                         // TODO document this
  27                         if (params.delegateTarget == null)
  28                                 setDelegateTarget(parentComponent);
  29                         else
  30                         {
  31                                 ModelComponent delegateTarget = parentComponent.submodel.getComponentsByName().get(params.delegateTarget);
  32                                 if (delegateTarget == null)
  33                                         throw new NullPointerException("No subcomponent with name " + params.delegateTarget);
  34                                 setDelegateTarget(delegateTarget);
  35                         }
  36                         setSubStateID(params.subStateID);
  37                 }
  38                 parentComponent.submodel.addComponentRemovedListener(c ->
  39                 {
  40                         if (delegateTarget == c)
  41                                 delegateTarget = null;
  42                 });
  43         }
  44
  45         public void set(ModelComponent delegateTarget, String subStateID)
  46         {
  47                 setDelegateTarget(delegateTarget);
  48                 setSubStateID(subStateID);
  49         }
  50
  51         public void setDelegateTarget(ModelComponent delegateTarget)
  52         {
  53                 if (delegateTarget == null)
  54                         this.delegateTarget = parentComponent;
  55                 else if (parentComponent.submodel.getComponentsByName().get(delegateTarget.getName()) != delegateTarget)
  56                         throw new IllegalArgumentException(
  57                                         "Can only set components belonging to the submodel of the parent component of this handler as the delegate target");
  58                 this.delegateTarget = delegateTarget;
  59         }
  60
  61         public ModelComponent getDelegateTarget()
  62         {
  63                 return delegateTarget;
  64         }
  65
  66         public void setSubStateID(String subStateID)
  67         {
  68                 this.subStateID = subStateID;
  69         }
  70
  71         public String getSubStateID()
  72         {
  73                 return subStateID;
  74         }
  75
  76         @Override
  77         public Object getHighLevelState()
  78         {
  79                 if (delegateTarget == null)
  80                         throw new IllegalStateException("Delegating to a component that was destroyed");
  81                 return delegateTarget.getHighLevelState(subStateID);
  82         }
  83
  84         @Override
  85         public void setHighLevelState(Object newState)
  86         {
  87                 if (delegateTarget == null)
  88                         throw new IllegalStateException("Delegating to a component that was destroyed");
  89                 delegateTarget.setHighLevelState(subStateID, newState);
  90         }
  91
  92         @Override
  93         public String getIDForSerializing(IdentifyParams idParams)
  94         {
  95                 return "delegating";
  96         }
  97
  98         @Override
  99         public DelegatingAtomicHighLevelStateHandlerParams getParamsForSerializing(IdentifyParams idParams)
 100         {
 101                 if (delegateTarget == null)
 102                         throw new IllegalStateException("Delegating to a component that was destroyed");
 103                 DelegatingAtomicHighLevelStateHandlerParams params = new DelegatingAtomicHighLevelStateHandlerParams();
 104                 params.delegateTarget = delegateTarget.getName();
 105                 params.subStateID = subStateID;
 106                 return params;
 107         }
 108
 109         public static class DelegatingAtomicHighLevelStateHandlerParams
 110         {
 111                 public String delegateTarget;
 112                 public String subStateID;
 113         }
 114
 115         static
 116         {
 117                 StandardHighLevelStateHandlerSnippetSuppliers.atomicHandlerSupplier.setSnippetSupplier(
 118                                 DelegatingAtomicHighLevelStateHandler.class.getCanonicalName(),
 119                                 SnippetDefinintion.create(DelegatingAtomicHighLevelStateHandlerParams.class, DelegatingAtomicHighLevelStateHandler::new));
 120         }
 121 }