1 package org.simantics.db.layer0.util;
3 import java.util.Collection;
5 import org.simantics.db.ReadGraph;
6 import org.simantics.db.Resource;
7 import org.simantics.db.common.request.BinaryRead;
8 import org.simantics.db.common.request.ObjectsWithType;
9 import org.simantics.db.common.request.ParametrizedPrimitiveRead;
10 import org.simantics.db.exception.DatabaseException;
11 import org.simantics.db.layer0.internal.SimanticsInternal;
12 import org.simantics.db.procedure.Listener;
13 import org.simantics.db.request.Read;
14 import org.simantics.layer0.Layer0;
15 import org.simantics.scl.compiler.environment.specification.EnvironmentSpecification;
16 import org.simantics.scl.compiler.module.repository.ImportFailureException;
17 import org.simantics.scl.compiler.module.repository.UpdateListener;
18 import org.simantics.scl.compiler.runtime.RuntimeEnvironment;
19 import org.simantics.scl.osgi.SCLOsgi;
20 import org.simantics.scl.runtime.SCLContext;
23 * Finds the runtime environment of a model or other index root.
25 * @author Hannu Niemistö
26 * @author Antti Villberg
28 public class RuntimeEnvironmentRequest2 extends BinaryRead<Resource, Resource, RuntimeEnvironment> {
30 public RuntimeEnvironmentRequest2(Resource parameter, Resource parameter2) {
31 super(parameter, parameter2);
34 protected void fillEnvironmentSpecification(EnvironmentSpecification environmentSpecification) {
37 static class UpdateListenerImpl extends UpdateListener {
39 final EnvironmentSpecification environmentSpecification;
40 final Listener<RuntimeEnvironment> callback;
42 UpdateListenerImpl(EnvironmentSpecification environmentSpecification, Listener<RuntimeEnvironment> callback) {
43 this.environmentSpecification = environmentSpecification;
44 this.callback = callback;
48 public void notifyAboutUpdate() {
49 if(callback.isDisposed()) {
53 getRuntimeEnvironment(environmentSpecification, callback, this);
57 final public static void getRuntimeEnvironment(EnvironmentSpecification environmentSpecification, Listener<RuntimeEnvironment> callback, UpdateListenerImpl listener) {
61 SCLContext context = SCLContext.getCurrent();
63 RuntimeEnvironment env;
64 Object graph = context.get("graph");
67 env = SimanticsInternal.getSession().syncRequest(new Read<RuntimeEnvironment>() {
69 public RuntimeEnvironment perform(ReadGraph graph) throws DatabaseException {
71 SCLContext sclContext = SCLContext.getCurrent();
72 Object oldGraph = sclContext.get("graph");
74 sclContext.put("graph", graph);
75 return SCLOsgi.MODULE_REPOSITORY.createRuntimeEnvironment(
76 environmentSpecification,
77 callback.getClass().getClassLoader(), listener);
78 } catch (ImportFailureException e) {
79 throw new DatabaseException(e);
80 } catch (Throwable t) {
81 throw new DatabaseException(t);
83 sclContext.put("graph", oldGraph);
87 } catch (DatabaseException e) {
88 callback.exception(e);
92 env = SCLOsgi.MODULE_REPOSITORY.createRuntimeEnvironment(
93 environmentSpecification,
94 callback.getClass().getClassLoader(), listener);
95 callback.execute(env);
96 } catch (ImportFailureException e) {
97 callback.exception(new DatabaseException(e));
103 public RuntimeEnvironment perform(ReadGraph graph)
104 throws DatabaseException {
105 final EnvironmentSpecification environmentSpecification = EnvironmentSpecification.of(
107 "StandardLibrary", "",
108 "Simantics/All", "");
109 fillEnvironmentSpecification(environmentSpecification);
111 Layer0 L0 = Layer0.getInstance(graph);
112 if (parameter != null) {
113 Collection<Resource> sclModules = graph.syncRequest(new ObjectsWithType(parameter, L0.ConsistsOf, L0.SCLModule));
114 for (Resource sclModule : sclModules) {
115 environmentSpecification.importModule(graph.getURI(sclModule), "");
118 // `parameter` is optional and can be null for e.g. procedural user components
121 Resource mainModule = Layer0Utils.getPossibleChild(graph, parameter2, "SCLMain");
122 if(mainModule != null)
123 environmentSpecification.importModule(graph.getURI(mainModule), "");
125 return graph.syncRequest(new ParametrizedPrimitiveRead<EnvironmentSpecification, RuntimeEnvironment>(environmentSpecification) {
126 UpdateListenerImpl sclListener;
128 public void register(ReadGraph graph, Listener<RuntimeEnvironment> procedure) {
130 SCLContext context = SCLContext.getCurrent();
131 Object oldGraph = context.put("graph", graph);
134 if(procedure.isDisposed()) {
135 getRuntimeEnvironment(parameter, procedure, null);
137 sclListener = new UpdateListenerImpl(parameter, procedure);
138 sclListener.notifyAboutUpdate();
142 context.put("graph", oldGraph);
148 public void unregistered() {
149 if(sclListener != null)
150 sclListener.stopListening();
157 public int hashCode() {
158 return 31*getClass().hashCode() + super.hashCode();