X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.ui%2Fsrc%2Forg%2Fsimantics%2Fui%2Fworkbench%2Fe4%2FE4ResourceEditorInput2.java;fp=bundles%2Forg.simantics.ui%2Fsrc%2Forg%2Fsimantics%2Fui%2Fworkbench%2Fe4%2FE4ResourceEditorInput2.java;h=c67fc68b6103822fd6ad93bcd38ababde67b1658;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.ui/src/org/simantics/ui/workbench/e4/E4ResourceEditorInput2.java b/bundles/org.simantics.ui/src/org/simantics/ui/workbench/e4/E4ResourceEditorInput2.java
new file mode 100644
index 000000000..c67fc68b6
--- /dev/null
+++ b/bundles/org.simantics.ui/src/org/simantics/ui/workbench/e4/E4ResourceEditorInput2.java
@@ -0,0 +1,104 @@
+package org.simantics.ui.workbench.e4;
+
+import org.simantics.Simantics;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.common.request.UniqueRead;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.variable.RVI;
+import org.simantics.db.layer0.variable.Variable;
+import org.simantics.db.layer0.variable.Variables;
+import org.simantics.ui.workbench.IResourceEditorInput2;
+
+/**
+ * @author Tuukka Lehtonen
+ * @since 1.22
+ */
+public class E4ResourceEditorInput2 extends E4ResourceEditorInput implements IResourceEditorInput2 {
+
+    protected final Resource model;
+    protected final String rvi;
+    protected transient Variable variable;
+
+    public E4ResourceEditorInput2(Resource resource, Resource model, String rvi) {
+        super(resource);
+        this.model = model;
+        this.rvi = rvi;
+    }
+
+    @Override
+    public void dispose() {
+        // Nullify to prevent the class from keeping unnecessary references to
+        // possible Variable implementation backend resources.
+        variable = null;
+    }
+
+    @Override
+    public Resource getModel(ReadGraph graph) {
+        return model;
+    }
+
+    @Override
+    public String getRVI() {
+        return rvi;
+    }
+
+    @Override
+    public boolean exists(ReadGraph graph) throws DatabaseException {
+        if (!super.exists(graph))
+            return false;
+
+        if (model != null) {
+            boolean modelExists = graph.hasStatement(model);
+            if (!modelExists)
+                return false;
+        }
+
+        if(rvi != null) {
+            Variable context = Variables.getPossibleConfigurationContext(graph, model);
+            if (context == null)
+                return false;
+            RVI rvi_ = RVI.fromResourceFormat(graph, rvi);
+            Variable variable = rvi_.resolvePossible(graph, context);
+            if (variable == null)
+                return false;
+        }
+
+        return true;
+    }
+
+    @Override
+    public Variable getVariable() throws DatabaseException {
+        if (variable != null)
+            return variable;
+        return Simantics.getSession().syncRequest(new UniqueRead<Variable>() {
+            @Override
+            public Variable perform(ReadGraph graph) throws DatabaseException {
+                return getVariable(graph);
+            }
+        });
+    }
+
+    protected Variable getVariable0(ReadGraph graph) throws DatabaseException {
+        Resource model = getModel(graph);
+        String rvi = getRVI();
+        // Model + RVI
+        if (rvi != null) {
+            Variable configuration = Variables.getConfigurationContext(graph, model);
+            RVI rrvi = RVI.fromResourceFormat(graph, rvi);
+            return rrvi.resolve(graph, configuration);
+        }
+        // Absolute URI
+        else {
+            return Variables.getVariable(graph, model);
+        }
+    }
+
+    @Override
+    public Variable getVariable(ReadGraph graph) throws DatabaseException {
+        Variable v = getVariable0(graph);
+        this.variable = v;
+        return v;
+    }
+
+}