gerrit.simantics Code Review - simantics/platform.git/blob

   1 package org.simantics.structural2.scl.procedural;
   2
   3 import java.util.List;
   4
   5 import org.simantics.databoard.Bindings;
   6 import org.simantics.db.ReadGraph;
   7 import org.simantics.db.Resource;
   8 import org.simantics.db.common.procedure.adapter.TransientCacheListener;
   9 import org.simantics.db.exception.DatabaseException;
  10 import org.simantics.db.layer0.scl.AbstractExpressionCompilationRequest;
  11 import org.simantics.db.layer0.variable.Variable;
  12 import org.simantics.scl.compiler.common.names.Name;
  13 import org.simantics.scl.compiler.constants.StringConstant;
  14 import org.simantics.scl.compiler.elaboration.expressions.EApply;
  15 import org.simantics.scl.compiler.elaboration.expressions.EConstant;
  16 import org.simantics.scl.compiler.elaboration.expressions.EExternalConstant;
  17 import org.simantics.scl.compiler.elaboration.expressions.ELiteral;
  18 import org.simantics.scl.compiler.elaboration.expressions.EVariable;
  19 import org.simantics.scl.compiler.elaboration.expressions.Expression;
  20 import org.simantics.scl.compiler.environment.Environment;
  21 import org.simantics.scl.compiler.types.Type;
  22 import org.simantics.scl.compiler.types.Types;
  23 import org.simantics.scl.runtime.SCLContext;
  24 import org.simantics.scl.runtime.function.Function1;
  25 import org.simantics.structural.stubs.StructuralResource2;
  26 import org.simantics.structural2.procedural.Interface;
  27 import org.simantics.structural2.procedural.SubstructureElement;
  28 import org.simantics.structural2.scl.ComponentTypeProperty;
  29
  30 public class CompileProceduralComponentTypeRequest extends AbstractExpressionCompilationRequest<ProceduralComponentTypeCompilationContext, Variable> {
  31
  32     private static final Type EXPECTED_TYPE = Types.list(Types.con("Structural/Procedural", "SubstructureElement"));
  33     private static Name PROPERTY_VALUE = Name.create("Simantics/Variables", "propertyValue");
  34     private static final Type CONNECTION_POINT = Types.con("Structural/Procedural", "ConnectionPoint");
  35
  36     private final Resource componentType;
  37
  38     public CompileProceduralComponentTypeRequest(Resource componentType) {
  39         this.componentType = componentType;
  40     }
  41
  42     @SuppressWarnings("unchecked")
  43     public static List<SubstructureElement> compileAndEvaluate(ReadGraph graph, Resource componentType, Variable context) throws DatabaseException {
  44         SCLContext sclContext = SCLContext.getCurrent();
  45         Object oldGraph = sclContext.get("graph");
  46         try {
  47             Function1<Variable,Object> exp = graph.syncRequest(
  48                     new CompileProceduralComponentTypeRequest(componentType),
  49                     TransientCacheListener.<Function1<Variable,Object>>instance());
  50             sclContext.put("graph", graph);
  51             return (List<SubstructureElement>)exp.apply(context);
  52         } catch (DatabaseException e) {
  53             throw (DatabaseException)e;
  54         } catch (Throwable t) {
  55             throw new DatabaseException(t);
  56         } finally {
  57             sclContext.put("graph", oldGraph);
  58         }
  59     }
  60
  61     @Override
  62     protected String getExpressionText(ReadGraph graph)
  63             throws DatabaseException {
  64         StructuralResource2 STR = StructuralResource2.getInstance(graph);
  65         return graph.getRelatedValue(componentType, STR.ProceduralComponentType_code, Bindings.STRING);
  66     }
  67
  68     @Override
  69     protected ProceduralComponentTypeCompilationContext getCompilationContext(
  70             ReadGraph graph) throws DatabaseException {
  71         return graph.syncRequest(new ProceduralComponentTypeCompilationContextRequest(componentType));
  72     }
  73
  74     @Override
  75     protected Type getContextVariableType() {
  76         return VARIABLE;
  77     }
  78
  79     @Override
  80     protected Expression getVariableAccessExpression(
  81             ReadGraph graph,
  82             ProceduralComponentTypeCompilationContext context,
  83             org.simantics.scl.compiler.elaboration.expressions.Variable contextVariable,
  84             String name) throws DatabaseException {
  85         ComponentTypeProperty property = context.propertyMap.get(name);
  86         if(property != null) {
  87             Environment environment = context.runtimeEnvironment.getEnvironment();
  88             return new EApply(
  89                     new EConstant(environment.getValue(FROM_DYNAMIC), property.type),
  90                     new EApply(
  91                             new EConstant(environment.getValue(PROPERTY_VALUE), Types.DYNAMIC),
  92                             new EVariable(contextVariable),
  93                             new ELiteral(new StringConstant(name))));
  94         }
  95
  96         Resource connectionPoint = context.connectionPointMap.get(name);
  97         if(connectionPoint != null)
  98             return new EExternalConstant(new Interface(connectionPoint), CONNECTION_POINT);
  99
 100         else if(name.equals("input"))
 101             return new EVariable(contextVariable);
 102         else if(name.equals("self"))
 103             return new EVariable(contextVariable);
 104         else
 105             return null;
 106     }
 107
 108     public static Type getExpectedType() {
 109         return EXPECTED_TYPE;
 110     }
 111
 112     @Override
 113     protected boolean parseAsBlock() {
 114         return true;
 115     }
 116
 117     @Override
 118     public boolean equals(Object obj) {
 119         if(obj == this)
 120             return true;
 121         if(obj == null || obj.getClass() != getClass())
 122             return false;
 123         CompileProceduralComponentTypeRequest other = (CompileProceduralComponentTypeRequest)obj;
 124         return componentType.equals(other.componentType);
 125     }
 126
 127     @Override
 128     public int hashCode() {
 129         return componentType.hashCode();
 130     }
 131 }