- protected void fillEnvironmentSpecification(EnvironmentSpecification environmentSpecification) {
- }
-
- static class UpdateListenerImpl extends UpdateListener {
-
- final EnvironmentSpecification environmentSpecification;
- final Listener<RuntimeEnvironment> callback;
-
- UpdateListenerImpl(EnvironmentSpecification environmentSpecification, Listener<RuntimeEnvironment> callback) {
- this.environmentSpecification = environmentSpecification;
- this.callback = callback;
- }
-
- @Override
- public void notifyAboutUpdate() {
- if(callback.isDisposed()) {
- stopListening();
- return;
- }
- getRuntimeEnvironment(environmentSpecification, callback, this);
- }
- };
-
- public static void getRuntimeEnvironment(EnvironmentSpecification environmentSpecification, Listener<RuntimeEnvironment> callback, UpdateListenerImpl listener) {
-
- try {
-
- SCLContext context = SCLContext.getCurrent();
-
- RuntimeEnvironment env;
- Object graph = context.get("graph");
- if(graph == null)
- try {
- env = SimanticsInternal.getSession().syncRequest(new Read<RuntimeEnvironment>() {
- @Override
- public RuntimeEnvironment perform(ReadGraph graph) throws DatabaseException {
-
- SCLContext sclContext = SCLContext.getCurrent();
- Object oldGraph = sclContext.get("graph");
- try {
- sclContext.put("graph", graph);
- return SCLOsgi.MODULE_REPOSITORY.createRuntimeEnvironment(
- environmentSpecification,
- callback.getClass().getClassLoader(), listener);
- } catch (ImportFailureException e) {
- throw new DatabaseException(e);
- } catch (Throwable t) {
- throw new DatabaseException(t);
- } finally {
- sclContext.put("graph", oldGraph);
- }
- }
- });
- } catch (DatabaseException e) {
- callback.exception(e);
- return;
- }
- else
- env = SCLOsgi.MODULE_REPOSITORY.createRuntimeEnvironment(
- environmentSpecification,
- callback.getClass().getClassLoader(), listener);
- callback.execute(env);
- } catch (ImportFailureException e) {
- callback.exception(new DatabaseException(e));
- }
-
- }
-
- @Override
- public RuntimeEnvironment perform(ReadGraph graph)
- throws DatabaseException {
- final EnvironmentSpecification environmentSpecification = EnvironmentSpecification.of(
- "Builtin", "",
- "StandardLibrary", "",
- "Simantics/All", "");
- fillEnvironmentSpecification(environmentSpecification);
-
- Resource mainModule = Layer0Utils.getPossibleChild(graph, parameter, "SCLMain");
- String mainModuleUri;
- if(mainModule != null) {
- mainModuleUri = graph.getURI(mainModule);
- environmentSpecification.importModule(mainModuleUri, "");
- }
- else
- mainModuleUri = graph.getURI(parameter) + "/#"; // Add something dummy to the model uri that cannot be in a real URI
-
- return graph.syncRequest(new ParametrizedPrimitiveRead<String, RuntimeEnvironment>(mainModuleUri) {
-
- UpdateListenerImpl sclListener;
-
- @Override
- public void register(ReadGraph graph, Listener<RuntimeEnvironment> procedure) {
-
- SCLContext context = SCLContext.getCurrent();
- Object oldGraph = context.put("graph", graph);
- try {
-
- if(procedure.isDisposed()) {
- getRuntimeEnvironment(environmentSpecification, procedure, null);
- } else {
- sclListener = new UpdateListenerImpl(environmentSpecification, procedure);
- sclListener.notifyAboutUpdate();
- }
-
- } finally {
- context.put("graph", oldGraph);
- }
-
- }
-
- @Override
- public void unregistered() {
- if(sclListener != null)
- sclListener.stopListening();
- }
-
- });
- }
-
- @Override
- public int hashCode() {
- return 31*getClass().hashCode() + super.hashCode();
- }
-