Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.modeling / src / org / simantics / modeling / scl / CompileProceduralSCLMonitorRequest.java

diff --git a/bundles/org.simantics.modeling/src/org/simantics/modeling/scl/CompileProceduralSCLMonitorRequest.java b/bundles/org.simantics.modeling/src/org/simantics/modeling/scl/CompileProceduralSCLMonitorRequest.java
new file mode 100644 (file)
index 0000000..7452d6d
--- /dev/null
+++ b/bundles/org.simantics.modeling/src/org/simantics/modeling/scl/CompileProceduralSCLMonitorRequest.java
@@ -0,0 +1,140 @@
+package org.simantics.modeling.scl;\r
+\r
+import gnu.trove.map.hash.THashMap;\r
+\r
+import org.simantics.databoard.Bindings;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.procedure.adapter.TransientCacheListener;\r
+import org.simantics.db.common.request.IndexRoot;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.layer0.request.VariableRead;\r
+import org.simantics.db.layer0.scl.AbstractExpressionCompilationContext;\r
+import org.simantics.db.layer0.scl.AbstractExpressionCompilationRequest;\r
+import org.simantics.db.layer0.util.RuntimeEnvironmentRequest;\r
+import org.simantics.db.layer0.variable.Variable;\r
+import org.simantics.layer0.Layer0;\r
+import org.simantics.modeling.ProceduralSubstructureMapRequest;\r
+import org.simantics.modeling.scl.CompileProceduralSCLMonitorRequest.CompilationContext;\r
+import org.simantics.scl.compiler.common.names.Name;\r
+import org.simantics.scl.compiler.constants.StringConstant;\r
+import org.simantics.scl.compiler.elaboration.expressions.EApply;\r
+import org.simantics.scl.compiler.elaboration.expressions.EConstant;\r
+import org.simantics.scl.compiler.elaboration.expressions.ELiteral;\r
+import org.simantics.scl.compiler.elaboration.expressions.EVariable;\r
+import org.simantics.scl.compiler.elaboration.expressions.Expression;\r
+import org.simantics.scl.compiler.environment.Environment;\r
+import org.simantics.scl.compiler.runtime.RuntimeEnvironment;\r
+import org.simantics.scl.compiler.types.Type;\r
+import org.simantics.scl.runtime.SCLContext;\r
+import org.simantics.scl.runtime.function.Function1;\r
+import org.simantics.utils.datastructures.Pair;\r
+\r
+public class CompileProceduralSCLMonitorRequest extends AbstractExpressionCompilationRequest<CompilationContext, Variable> {\r
+    \r
+    protected static Name BROWSE = Name.create("Simantics/Variables", "browse");\r
+    protected static Name VALUE = Name.create("Simantics/Variables", "value");\r
+    \r
+    private final Resource componentType;\r
+    private final Resource literal;\r
+    private final Variable componentVariable;\r
+    \r
+    public static class CompilationContext extends AbstractExpressionCompilationContext {\r
+        public final THashMap<String, Pair<String,Type>> propertyMap;\r
+        \r
+        public CompilationContext(RuntimeEnvironment runtimeEnvironment,\r
+                THashMap<String, Pair<String,Type>> propertyMap) {\r
+            super(runtimeEnvironment);\r
+            this.propertyMap = propertyMap;\r
+        }\r
+    }\r
+    \r
+    public CompileProceduralSCLMonitorRequest(ReadGraph graph, Variable context)\r
+            throws DatabaseException {\r
+        this.componentType = context.getParent(graph).getType(graph);\r
+        this.literal = context.getRepresents(graph);\r
+        this.componentVariable = context.getParent(graph);\r
+    }\r
+\r
+    public static Object compileAndEvaluate(ReadGraph graph, Variable context) throws DatabaseException {\r
+        SCLContext sclContext = SCLContext.getCurrent();\r
+        Object oldGraph = sclContext.get("graph");\r
+        try {\r
+            Function1<Variable,Object> exp = graph.syncRequest(new CompileProceduralSCLMonitorRequest(graph, context),\r
+                    TransientCacheListener.<Function1<Variable,Object>>instance());\r
+            sclContext.put("graph", graph);\r
+            return exp.apply(context.getParent(graph));\r
+        } catch (DatabaseException e) {\r
+            throw (DatabaseException)e;\r
+        } catch (Throwable t) {\r
+            throw new DatabaseException(t);\r
+        } finally {\r
+            sclContext.put("graph", oldGraph);\r
+        }\r
+    }\r
+\r
+    @Override\r
+    protected String getExpressionText(ReadGraph graph)\r
+            throws DatabaseException {\r
+        Layer0 L0 = Layer0.getInstance(graph);\r
+        return graph.getRelatedValue(literal, L0.SCLValue_expression, Bindings.STRING);\r
+    }\r
+\r
+    @Override\r
+    protected CompilationContext getCompilationContext(ReadGraph graph)\r
+            throws DatabaseException {\r
+        return graph.syncRequest(new VariableRead<CompilationContext>(componentVariable) {\r
+            @Override\r
+            public CompilationContext perform(ReadGraph graph)\r
+                    throws DatabaseException {\r
+                Resource indexRoot = graph.syncRequest(new IndexRoot(componentType));\r
+                RuntimeEnvironment runtimeEnvironment = graph.syncRequest(new RuntimeEnvironmentRequest(indexRoot));\r
+                THashMap<String, Pair<String,Type>> propertyMap =\r
+                        graph.sync(new ProceduralSubstructureMapRequest(componentVariable));\r
+                return new CompilationContext(runtimeEnvironment, propertyMap);\r
+            }\r
+        });\r
+    }\r
+\r
+    @Override\r
+    protected Type getContextVariableType() {\r
+        return VARIABLE;\r
+    }\r
+\r
+    @Override\r
+    protected Expression getVariableAccessExpression(\r
+            ReadGraph graph,\r
+            CompilationContext context,\r
+            org.simantics.scl.compiler.elaboration.expressions.Variable contextVariable,\r
+            String name) throws DatabaseException {\r
+        Pair<String,Type> entry = context.propertyMap.get(name);\r
+        if(entry == null)\r
+            return null;\r
+        Environment environment = context.runtimeEnvironment.getEnvironment();\r
+        Expression propertyVariable = new EApply(\r
+                new EConstant(environment.getValue(BROWSE)),\r
+                new EVariable(contextVariable),\r
+                new ELiteral(new StringConstant(entry.first))\r
+                );\r
+        return new EApply(\r
+                new EConstant(environment.getValue(VALUE), entry.second),\r
+                propertyVariable\r
+                );\r
+    }\r
+    \r
+    @Override\r
+    public int hashCode() {\r
+        return 31*componentVariable.hashCode() + literal.hashCode();\r
+    }\r
+    \r
+    @Override\r
+    public boolean equals(Object obj) {\r
+        if(this == obj)\r
+            return true;\r
+        if(obj == null || obj.getClass() != getClass())\r
+            return false;\r
+        CompileProceduralSCLMonitorRequest other = (CompileProceduralSCLMonitorRequest)obj;\r
+        return literal.equals(other.literal) && componentVariable.equals(other.componentVariable);\r
+    }\r
+}\r
+\r