--- /dev/null
+/*
+ * Copyright (c) 2022 PANTHEON.tech, s.r.o. 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 static com.google.common.base.Verify.verifyNotNull;
+import static java.util.Objects.requireNonNull;
+
+/**
+ * Serialization proxy for {@link ShardSnapshotState}.
+ */
+final class SS implements ShardSnapshotState.SerialForm {
+ private static final long serialVersionUID = 1L;
+
+ private ShardSnapshotState snapshotState;
+
+ @SuppressWarnings("checkstyle:RedundantModifier")
+ public SS() {
+ // For Externalizable
+ }
+
+ SS(final ShardSnapshotState snapshotState) {
+ this.snapshotState = requireNonNull(snapshotState);
+ }
+
+ @Override
+ public ShardSnapshotState snapshotState() {
+ return snapshotState;
+ }
+
+ @Override
+ public void resolveTo(final ShardSnapshotState newSnapshotState) {
+ snapshotState = requireNonNull(newSnapshotState);
+ }
+
+ @Override
+ public Object readResolve() {
+ return verifyNotNull(snapshotState);
+ }
+}