1 files changed, 50 insertions, 0 deletions
diff --git a/v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/write/ReflexiveAugmentWriterCustomizer.java b/v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/write/ReflexiveAugmentWriterCustomizer.java
new file mode 100644
index 000000000..6d29214b3
--- /dev/null
+++ b/v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/write/ReflexiveAugmentWriterCustomizer.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.fd.honeycomb.v3po.translate.util.write;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkState;
+
+import com.google.common.base.Optional;
+import io.fd.honeycomb.v3po.translate.spi.write.ChildWriterCustomizer;
+import javax.annotation.Nonnull;
+import org.opendaylight.yangtools.yang.binding.Augmentable;
+import org.opendaylight.yangtools.yang.binding.Augmentation;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+/**
+ * Might be slow !
+ */
+public class ReflexiveAugmentWriterCustomizer<C extends DataObject> extends NoopWriterCustomizer<C> implements
+    ChildWriterCustomizer<C> {
+
+    @Nonnull
+    @Override
+    @SuppressWarnings("unchecked")
+    public Optional<C> extract(@Nonnull final InstanceIdentifier<C> currentId, @Nonnull final DataObject parentData) {
+        checkArgument(parentData instanceof Augmentable<?>, "Not augmnatable parent object: %s", parentData);
+        final Class<C> currentType = currentId.getTargetType();
+        final Augmentation<?> augmentation = ((Augmentable) parentData).getAugmentation(currentType);
+        if(augmentation == null) {
+            return Optional.absent();
+        } else {
+            checkState(currentType.isAssignableFrom(augmentation.getClass()));
+            return Optional.of(currentType.cast(augmentation));
+        }
+    }
+}