1 files changed, 83 insertions, 0 deletions
diff --git a/infra/data-impl/src/main/java/io/fd/honeycomb/data/impl/ContainerRewriteDeleteProducer.java b/infra/data-impl/src/main/java/io/fd/honeycomb/data/impl/ContainerRewriteDeleteProducer.java
new file mode 100644
index 000000000..7a2b31eea
--- /dev/null
+++ b/infra/data-impl/src/main/java/io/fd/honeycomb/data/impl/ContainerRewriteDeleteProducer.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2017 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.data.impl;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import javax.annotation.Nonnull;
+import org.opendaylight.yangtools.yang.common.QName;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
+import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
+import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+import org.opendaylight.yangtools.yang.model.api.SchemaPath;
+import org.opendaylight.yangtools.yang.model.util.SchemaContextUtil;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+class ContainerRewriteDeleteProducer extends DelegatingRewriteDeleteProducer implements RewriteDeleteProducer {
+
+    private static final Logger LOG = LoggerFactory.getLogger(ContainerRewriteDeleteProducer.class);
+
+    private final SchemaContext ctx;
+
+    ContainerRewriteDeleteProducer(@Nonnull final NormalizedNodeRewriteDeleteRegistry baseRewriteProducer,
+                                   @Nonnull final SchemaContext ctx) {
+        super(baseRewriteProducer);
+        this.ctx = ctx;
+    }
+
+    @Override
+    public Collection<NormalizedNodeUpdate> normalizedUpdates(@Nonnull final YangInstanceIdentifier topLevelIdentifier,
+                                                              @Nonnull final Map.Entry<YangInstanceIdentifier.PathArgument, DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?>> entry) {
+        final ContainerSchemaNode containerSchemaNode =
+                (ContainerSchemaNode) SchemaContextUtil
+                        .findDataSchemaNode(ctx, getSchemaPath(topLevelIdentifier, entry));
+
+        if (containerSchemaNode.isPresenceContainer()) {
+            LOG.debug("Processing {} as presence container", topLevelIdentifier);
+            // if presence container  - create delete right away
+            return ((ContainerNode) entry.getValue()).getValue().stream()
+                    .map(containerNode -> new NormalizedNodeUpdate(
+                            YangInstanceIdentifier.builder(topLevelIdentifier)
+                                    .node(containerNode.getIdentifier()).build(), containerNode, null))
+                    .collect(Collectors.toList());
+        } else {
+            LOG.debug("Processing {} as non-presence container", topLevelIdentifier);
+            // if non-presence - goes deep with base logic
+            return super.normalizedUpdates(topLevelIdentifier, entry);
+        }
+    }
+
+    private static SchemaPath getSchemaPath(final YangInstanceIdentifier topLevelIdentifier,
+                                            final Map.Entry<YangInstanceIdentifier.PathArgument, DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?>> entry) {
+        return SchemaPath.create(extractSchemaPathQNames(topLevelIdentifier, entry), true);
+    }
+
+    private static List<QName> extractSchemaPathQNames(final YangInstanceIdentifier topLevelIdentifier,
+                                                       final Map.Entry<YangInstanceIdentifier.PathArgument, DataContainerChild<? extends YangInstanceIdentifier.PathArgument, ?>> entry) {
+        // must be filtered out of augmentation and keyed NodeIdentifiers
+        return Stream.concat(topLevelIdentifier.getPathArguments().stream(), Stream.of(entry.getKey()))
+                .filter(pathArgument -> pathArgument instanceof YangInstanceIdentifier.NodeIdentifier)
+                .map(YangInstanceIdentifier.PathArgument::getNodeType)
+                .collect(Collectors.toList());
+    }
+}