1 files changed, 36 insertions, 0 deletions
diff --git a/rba.tool.editor/src/rba/tool/editor/model/manager/GlobalIndexResourceSorter.java b/rba.tool.editor/src/rba/tool/editor/model/manager/GlobalIndexResourceSorter.java
new file mode 100644
index 0000000..559e9d5
--- /dev/null
+++ b/rba.tool.editor/src/rba/tool/editor/model/manager/GlobalIndexResourceSorter.java
@@ -0,0 +1,36 @@
+package rba.tool.editor.model.manager;
+
+import java.util.Comparator;
+
+import org.eclipse.emf.common.util.URI;
+import org.eclipse.emf.ecore.resource.Resource;
+
+public class GlobalIndexResourceSorter implements Comparator<Resource> {
+
+    int sort(URI o1, URI o2) {
+        /* first compare folder */
+        int size1 = o1.segmentCount() - 1;
+        int size2 = o2.segmentCount() - 1;
+        for (int i = 0; i < size1 && i < size2; i++) {
+            int result = o1.segment(i).toLowerCase().compareTo(o2.segment(i).toLowerCase());
+            if (result != 0) {
+                return result;
+            }
+        }
+
+        if (size1 == size2) {
+            /* order of name that last segment(file). */
+            return o1.lastSegment().toLowerCase().compareTo(o2.lastSegment().toLowerCase());
+        } else if (size1 > size2) {
+            /* prioritize folder over file */
+            return -1;
+        } else {
+            return 1;
+        }
+    }
+
+    @Override
+    public int compare(Resource o1, Resource o2) {
+        return sort(o1.getURI(), o2.getURI());
+    }
+}