BUG-5280: centralize ShardSnapshot operations

[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / persisted / PreBoronShardDataTreeSnapshot.java

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/persisted/PreBoronShardDataTreeSnapshot.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/persisted/PreBoronShardDataTreeSnapshot.java
new file mode 100644 (file)
index 0000000..cd0bd65
--- /dev/null
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/persisted/PreBoronShardDataTreeSnapshot.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.cluster.datastore.persisted;
+
+import com.google.common.annotations.Beta;
+import java.util.Optional;
+import javax.annotation.Nullable;
+import org.opendaylight.controller.cluster.datastore.utils.SerializationUtils;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+
+/**
+ * Legacy data tree snapshot used in versions prior to Boron, which contains only the data.
+ *
+ * @author Robert Varga
+ */
+@Beta
+public final class PreBoronShardDataTreeSnapshot extends ShardDataTreeSnapshot {
+    private final NormalizedNode<?, ?> rootNode;
+
+    @Deprecated
+    public PreBoronShardDataTreeSnapshot(final @Nullable NormalizedNode<?, ?> rootNode) {
+        this.rootNode = rootNode;
+    }
+
+    @Override
+    public Optional<NormalizedNode<?, ?>> getRootNode() {
+        return Optional.ofNullable(rootNode);
+    }
+
+    @Override
+    public byte[] serialize() {
+        return SerializationUtils.serializeNormalizedNode(rootNode);
+    }
+}
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