X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.scl.db%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fdb%2FSCLFunctions.java;fp=bundles%2Forg.simantics.scl.db%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fdb%2FSCLFunctions.java;h=00df313ad4e34eaed68253b4ccc93640f52d1c79;hp=9b4d6b8ac92ec90d5c3970285efbe15d7550c008;hb=277ddb17bc33a7c0b5c352f80bbc2605acaee50d;hpb=ea17057d1c483f8a2bcb765527e45cf4fba36df5

diff --git a/bundles/org.simantics.scl.db/src/org/simantics/scl/db/SCLFunctions.java b/bundles/org.simantics.scl.db/src/org/simantics/scl/db/SCLFunctions.java
index 9b4d6b8ac..00df313ad 100644
--- a/bundles/org.simantics.scl.db/src/org/simantics/scl/db/SCLFunctions.java
+++ b/bundles/org.simantics.scl.db/src/org/simantics/scl/db/SCLFunctions.java
@@ -2,6 +2,7 @@ package org.simantics.scl.db;
 
 import java.io.IOException;
 
+import org.cojen.classfile.TypeDesc;
 import org.simantics.Simantics;
 import org.simantics.db.ReadGraph;
 import org.simantics.db.Resource;
@@ -21,6 +22,14 @@ import org.simantics.db.service.ClusterControl;
 import org.simantics.db.service.SerialisationSupport;
 import org.simantics.db.service.VirtualGraphSupport;
 import org.simantics.layer0.utils.triggers.IActivationManager;
+import org.simantics.scl.compiler.environment.specification.EnvironmentSpecification;
+import org.simantics.scl.compiler.errors.Failable;
+import org.simantics.scl.compiler.internal.codegen.types.JavaTypeTranslator;
+import org.simantics.scl.compiler.module.Module;
+import org.simantics.scl.compiler.module.repository.ImportFailureException;
+import org.simantics.scl.compiler.runtime.RuntimeEnvironment;
+import org.simantics.scl.compiler.types.Type;
+import org.simantics.scl.osgi.SCLOsgi;
 import org.simantics.scl.runtime.SCLContext;
 import org.simantics.scl.runtime.function.Function;
 import org.simantics.scl.runtime.function.Function1;
@@ -310,4 +319,28 @@ public class SCLFunctions {
     public static Object subqueryC(ReadGraph graph, Function q) throws DatabaseException {
         return graph.syncRequest(new Subquery(q), TransientCacheAsyncListener.<Object>instance());
     }
+
+    public static Object possibleFromDynamic(Type expectedType, String moduleName, Object value) {
+    	
+        try {
+
+        	
+            Failable<Module> failable = SCLOsgi.MODULE_REPOSITORY.getModule(moduleName);
+            Module module = failable.getResult();
+            
+        	RuntimeEnvironment env = SCLOsgi.MODULE_REPOSITORY.createRuntimeEnvironment(
+        			EnvironmentSpecification.of(moduleName, ""), module.getParentClassLoader());
+
+            JavaTypeTranslator tr = new JavaTypeTranslator(env.getEnvironment());
+            TypeDesc desc = tr.toTypeDesc(expectedType);
+            String className = desc.getFullName();
+            Class<?> clazz = env.getMutableClassLoader().loadClass(className);
+            if (!clazz.isAssignableFrom(value.getClass()))
+                return null;
+            
+        } catch (ImportFailureException | ClassNotFoundException e) {
+        }
+        return value;
+    }
+
 }