bundles/org.simantics.modeling/src/org/simantics/modeling/scl/CompileSCLValueRequest.java

   1 package org.simantics.modeling.scl;
   2
   3 import org.simantics.db.ReadGraph;
   4 import org.simantics.db.common.procedure.adapter.TransientCacheListener;
   5 import org.simantics.db.exception.DatabaseException;
   6 import org.simantics.db.layer0.variable.Variable;
   7 import org.simantics.scl.runtime.SCLContext;
   8 import org.simantics.scl.runtime.function.Function1;
   9 import org.simantics.structural2.scl.CompileStructuralValueRequest;
  10
  11 public class CompileSCLValueRequest extends CompileStructuralValueRequest {
  12
  13     public CompileSCLValueRequest(ReadGraph graph, Variable context)
  14             throws DatabaseException {
  15         super(graph, context);
  16     }
  17
  18     public static Object compileAndEvaluate(ReadGraph graph, Variable context) throws DatabaseException {
  19         SCLContext sclContext = SCLContext.getCurrent();
  20         Object oldGraph = sclContext.get("graph");
  21         try {
  22             Function1<Variable,Object> exp = graph.syncRequest(new CompileSCLValueRequest(graph, context),
  23                     TransientCacheListener.<Function1<Variable,Object>>instance());
  24             sclContext.put("graph", graph);
  25             return exp.apply(context);
  26         } catch (DatabaseException e) {
  27             throw (DatabaseException)e;
  28         } catch (Throwable t) {
  29             throw new DatabaseException(t);
  30         } finally {
  31             sclContext.put("graph", oldGraph);
  32         }
  33     }
  34
  35 }