Bug 7521: Convert Snapshot to store a State instance

[controller.git] / opendaylight / md-sal / sal-akka-raft / src / main / java / org / opendaylight / controller / cluster / raft / NoopRaftActorSnapshotCohort.java

diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/NoopRaftActorSnapshotCohort.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/NoopRaftActorSnapshotCohort.java
new file mode 100644 (file)
index 0000000..42b226f
--- /dev/null
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/NoopRaftActorSnapshotCohort.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2017 Brocade Communications 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.raft;
+
+import akka.actor.ActorRef;
+import com.google.common.io.ByteSource;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.Optional;
+import org.opendaylight.controller.cluster.raft.persisted.EmptyState;
+import org.opendaylight.controller.cluster.raft.persisted.Snapshot.State;
+
+/**
+ * RaftActorSnapshotCohort implementation that does nothing.
+ *
+ * @author Thomas Pantelis
+ */
+public final class NoopRaftActorSnapshotCohort implements RaftActorSnapshotCohort {
+    public static final NoopRaftActorSnapshotCohort INSTANCE = new NoopRaftActorSnapshotCohort();
+
+    private NoopRaftActorSnapshotCohort() {
+    }
+
+    @Override
+    public void createSnapshot(ActorRef actorRef, Optional<OutputStream> installSnapshotStream) {
+    }
+
+    @Override
+    public void applySnapshot(State snapshotState) {
+    }
+
+    @Override
+    public State deserializeSnapshot(ByteSource snapshotBytes) throws IOException {
+        return EmptyState.INSTANCE;
+    }
+}