Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.debug.browser / src / org / simantics / debug / browser / internal / rewriters / BreadcrumbCreator.java

diff --git a/bundles/org.simantics.debug.browser/src/org/simantics/debug/browser/internal/rewriters/BreadcrumbCreator.java b/bundles/org.simantics.debug.browser/src/org/simantics/debug/browser/internal/rewriters/BreadcrumbCreator.java
new file mode 100644 (file)
index 0000000..8d8ecba
--- /dev/null
+++ b/bundles/org.simantics.debug.browser/src/org/simantics/debug/browser/internal/rewriters/BreadcrumbCreator.java
@@ -0,0 +1,93 @@
+/*******************************************************************************\r
+ * Copyright (c) 2016 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     THTH ry - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.debug.browser.internal.rewriters;\r
+\r
+import java.util.ArrayList;\r
+\r
+import org.simantics.databoard.Bindings;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.Statement;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.debug.browser.content.ResourceBrowserContent;\r
+import org.simantics.debug.browser.content.ResourceBrowserRewriter;\r
+import org.simantics.debug.browser.sections.BreadcrumbSection;\r
+import org.simantics.debug.browser.sections.RawStatementsSection;\r
+import org.simantics.debug.browser.sections.BreadcrumbSection.Node;\r
+import org.simantics.layer0.Layer0;\r
+\r
+public enum BreadcrumbCreator implements ResourceBrowserRewriter {\r
+    INSTANCE;\r
+\r
+    @Override\r
+    public void rewrite(ReadGraph graph, ResourceBrowserContent content)\r
+            throws DatabaseException {\r
+        ArrayList<Node> nodes = new ArrayList<Node>();\r
+        collectBreadcrumbs(graph, nodes, content.resource);\r
+        if(!nodes.isEmpty()) {\r
+            content.putSection(BreadcrumbSection.class,\r
+                    new BreadcrumbSection(nodes.toArray(new Node[nodes.size()])));\r
+            \r
+            Layer0 L0 = Layer0.getInstance(graph);\r
+            RawStatementsSection rawStatementsSection = content.getSection(RawStatementsSection.class);\r
+            rawStatementsSection.statementsByPredicates.remove(L0.HasName);\r
+            rawStatementsSection.statementsByPredicates.remove(L0.PartOf);\r
+        }\r
+    }\r
+\r
+    private static void collectBreadcrumbs(ReadGraph graph, ArrayList<Node> nodes,\r
+            Resource resource) throws DatabaseException {\r
+        if(resource.equals(graph.getRootLibrary())) {\r
+            nodes.add(new Node("", "http:/", resource.getResourceId()));\r
+            return;\r
+        }\r
+        Layer0 L0 = Layer0.getInstance(graph);\r
+        Resource parent = graph.getPossibleObject(resource, L0.PartOf);\r
+        if(parent != null) {\r
+            collectBreadcrumbs(graph, nodes, parent);\r
+            String name = graph.getPossibleRelatedValue(resource, L0.HasName, Bindings.STRING);\r
+            if(name != null)\r
+                nodes.add(new Node("/", name, resource.getResourceId()));\r
+            else\r
+                nodes.add(new Node("/", String.valueOf(resource.getResourceId()), resource.getResourceId()));\r
+            return;\r
+        }\r
+        Statement propertyInverseStatement = graph.getPossibleStatement(resource, L0.PropertyOf);\r
+        if(propertyInverseStatement != null) {\r
+            collectBreadcrumbs(graph, nodes, propertyInverseStatement.getObject());\r
+            String name = graph.getPossibleRelatedValue(graph.getInverse(propertyInverseStatement.getPredicate()),\r
+                    L0.HasName, Bindings.STRING);\r
+            nodes.add(new Node("#", name, resource.getResourceId()));\r
+            return;\r
+        }\r
+        Resource assertion = graph.getPossibleObject(resource, L0.HasObjectInverse);\r
+        if(assertion != null) {\r
+            parent = graph.getPossibleObject(assertion, L0.Asserts_Inverse);\r
+            if(parent != null) {\r
+                collectBreadcrumbs(graph, nodes, parent);\r
+                Resource predicate = graph.getPossibleObject(assertion, L0.HasPredicate);\r
+                String name = predicate == null ? null \r
+                        : (String)graph.getPossibleRelatedValue(predicate, L0.HasName, Bindings.STRING);\r
+                if(name != null)\r
+                    nodes.add(new Node("#assertion#", name, resource.getResourceId()));\r
+                else\r
+                    nodes.add(new Node("#assertion#", String.valueOf(resource.getResourceId()), resource.getResourceId()));\r
+                return;\r
+            }\r
+        }\r
+    }\r
+\r
+    @Override\r
+    public double getPriority() {\r
+        return 1;\r
+    }\r
+}\r