X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.modeling%2Fsrc%2Forg%2Fsimantics%2Fmodeling%2FComponentTypeScriptRuntimeEnvironmentRequest.java;fp=bundles%2Forg.simantics.modeling%2Fsrc%2Forg%2Fsimantics%2Fmodeling%2FComponentTypeScriptRuntimeEnvironmentRequest.java;h=d5f4365b46c7faca8c0de476f7b52ea5fcc827be;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.modeling/src/org/simantics/modeling/ComponentTypeScriptRuntimeEnvironmentRequest.java b/bundles/org.simantics.modeling/src/org/simantics/modeling/ComponentTypeScriptRuntimeEnvironmentRequest.java
new file mode 100644
index 000000000..d5f4365b4
--- /dev/null
+++ b/bundles/org.simantics.modeling/src/org/simantics/modeling/ComponentTypeScriptRuntimeEnvironmentRequest.java
@@ -0,0 +1,55 @@
+package org.simantics.modeling;
+
+import java.util.ArrayList;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.common.request.ParametrizedPrimitiveRead;
+import org.simantics.db.procedure.Listener;
+import org.simantics.scl.compiler.environment.specification.EnvironmentSpecification;
+import org.simantics.scl.compiler.module.repository.ImportFailureException;
+import org.simantics.scl.compiler.module.repository.UpdateListener;
+import org.simantics.scl.compiler.runtime.RuntimeEnvironment;
+import org.simantics.scl.osgi.SCLOsgi;
+import org.simantics.scl.runtime.SCLContext;
+
+public class ComponentTypeScriptRuntimeEnvironmentRequest extends ParametrizedPrimitiveRead<EnvironmentSpecification, RuntimeEnvironment> {
+
+    // This array list is only needed to keep strong references to update listeners preventing their garbage collection.
+    ArrayList<UpdateListener> listeners;
+    
+    public ComponentTypeScriptRuntimeEnvironmentRequest(EnvironmentSpecification parameter) {
+        super(parameter);
+    }
+
+    @Override
+    public void register(ReadGraph graph, Listener<RuntimeEnvironment> procedure) {
+        UpdateListener listener = null;
+        if(!procedure.isDisposed()) {
+            listener = new UpdateListener() {
+                @Override
+                public void notifyAboutUpdate() {
+                    createRuntimeEnvironment(graph, procedure, this);
+                }
+            };
+            if(listeners == null)
+                listeners = new ArrayList<UpdateListener>(2);
+            listeners.add(listener);
+        }
+        createRuntimeEnvironment(graph, procedure, listener);
+    }
+    
+    private void createRuntimeEnvironment(ReadGraph graph, Listener<RuntimeEnvironment> procedure, UpdateListener listener) {
+        SCLContext context = SCLContext.getCurrent();
+        Object oldGraph = context.put("graph", graph);
+        try {
+            procedure.execute(SCLOsgi.MODULE_REPOSITORY.createRuntimeEnvironment(parameter, ComponentTypeScriptRuntimeEnvironmentRequest.class.getClassLoader(), listener));
+        }
+        catch (ImportFailureException e) {
+            procedure.exception(e);
+        }
+        finally {
+            context.put("graph", oldGraph);
+        }
+    }
+
+}