Minor code refactoring and improvements.

[controller.git] / opendaylight / sal / yang-prototype / code-generator / yang-model-parser-impl / src / main / java / org / opendaylight / controller / yang / parser / builder / impl / IdentitySchemaNodeBuilder.java

diff --git a/opendaylight/sal/yang-prototype/code-generator/yang-model-parser-impl/src/main/java/org/opendaylight/controller/yang/parser/builder/impl/IdentitySchemaNodeBuilder.java b/opendaylight/sal/yang-prototype/code-generator/yang-model-parser-impl/src/main/java/org/opendaylight/controller/yang/parser/builder/impl/IdentitySchemaNodeBuilder.java
index 14fca7d250cb4cf9300fcb0d4d4757156762d0ef..96b4bd4dd89826176af584cce712f47504a9b8ee 100644 (file)
--- a/opendaylight/sal/yang-prototype/code-generator/yang-model-parser-impl/src/main/java/org/opendaylight/controller/yang/parser/builder/impl/IdentitySchemaNodeBuilder.java
+++ b/opendaylight/sal/yang-prototype/code-generator/yang-model-parser-impl/src/main/java/org/opendaylight/controller/yang/parser/builder/impl/IdentitySchemaNodeBuilder.java
@@ -48,11 +48,13 @@ public final class IdentitySchemaNodeBuilder extends AbstractSchemaNodeBuilder {
             }
 
             // UNKNOWN NODES
-            final List<UnknownSchemaNode> unknownNodes = new ArrayList<UnknownSchemaNode>();
-            for (UnknownSchemaNodeBuilder b : addedUnknownNodes) {
-                unknownNodes.add(b.build());
+            if (unknownNodes == null) {
+                unknownNodes = new ArrayList<UnknownSchemaNode>();
+                for (UnknownSchemaNodeBuilder b : addedUnknownNodes) {
+                    unknownNodes.add(b.build());
+                }
+                Collections.sort(unknownNodes, Comparators.SCHEMA_NODE_COMP);
             }
-            Collections.sort(unknownNodes, Comparators.SCHEMA_NODE_COMP);
             instance.setUnknownSchemaNodes(unknownNodes);
 
             isBuilt = true;