X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-distributed-datastore%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fdatastore%2Fpersisted%2FAbstractVersionedShardDataTreeSnapshot.java;h=2712b24fa7933160d483031d8fbe065f188656dc;hb=55a9b9f42a14c56060f74b38f84d444c0fbfecc4;hp=48d267342149e3bbcef9a4b3bc21123701c1510b;hpb=925cb4a228d0fda99c7bfeb432eb25285a223887;p=controller.git

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/persisted/AbstractVersionedShardDataTreeSnapshot.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/persisted/AbstractVersionedShardDataTreeSnapshot.java
index 48d2673421..2712b24fa7 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/persisted/AbstractVersionedShardDataTreeSnapshot.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/persisted/AbstractVersionedShardDataTreeSnapshot.java
@@ -8,14 +8,11 @@
 package org.opendaylight.controller.cluster.datastore.persisted;
 
 import com.google.common.base.Verify;
-import java.io.ByteArrayOutputStream;
-import java.io.DataInputStream;
-import java.io.DataOutputStream;
 import java.io.IOException;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
 import java.util.Optional;
-import javax.annotation.Nonnull;
+import org.eclipse.jdt.annotation.NonNull;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -30,27 +27,32 @@ abstract class AbstractVersionedShardDataTreeSnapshot extends ShardDataTreeSnaps
     private static final Logger LOG = LoggerFactory.getLogger(AbstractVersionedShardDataTreeSnapshot.class);
 
     @SuppressWarnings("checkstyle:FallThrough")
-    static ShardDataTreeSnapshot deserialize(final DataInputStream is) throws IOException {
-        final PayloadVersion version = PayloadVersion.readFrom(is);
+    static @NonNull ShardSnapshotState versionedDeserialize(final ObjectInput in) throws IOException {
+        final PayloadVersion version = PayloadVersion.readFrom(in);
         switch (version) {
             case BORON:
-                // Boron snapshots use Java Serialization
-                try (final ObjectInputStream ois = new ObjectInputStream(is)) {
-                    return (ShardDataTreeSnapshot) ois.readObject();
-                } catch (ClassNotFoundException e) {
-                    LOG.error("Failed to serialize data tree snapshot", e);
-                    throw new IOException("Snapshot failed to deserialize", e);
-                }
+            case NEON_SR2:
+                return new ShardSnapshotState(readSnapshot(in), true);
+            case SODIUM_SR1:
+            case MAGNESIUM:
+                return new ShardSnapshotState(readSnapshot(in), false);
             case TEST_FUTURE_VERSION:
             case TEST_PAST_VERSION:
                 // These versions are never returned and this code is effectively dead
-                break;
             default:
-                throw new IOException("Invalid payload version in snapshot");
+                // Not included as default in above switch to ensure we get warnings when new versions are added
+                throw new IOException("Encountered unhandled version" + version);
         }
+    }
 
-        // Not included as default in above switch to ensure we get warnings when new versions are added
-        throw new IOException("Encountered unhandled version" + version);
+    // Boron and Sodium snapshots use Java Serialization, but differ in stream format
+    private static @NonNull ShardDataTreeSnapshot readSnapshot(final ObjectInput in) throws IOException {
+        try {
+            return (ShardDataTreeSnapshot) in.readObject();
+        } catch (ClassNotFoundException e) {
+            LOG.error("Failed to serialize data tree snapshot", e);
+            throw new IOException("Snapshot failed to deserialize", e);
+        }
     }
 
     @Override
@@ -63,24 +65,23 @@ abstract class AbstractVersionedShardDataTreeSnapshot extends ShardDataTreeSnaps
      *
      * @return The root node.
      */
-    @Nonnull
-    abstract NormalizedNode<?, ?> rootNode();
+    abstract @NonNull NormalizedNode<?, ?> rootNode();
 
     /**
      * Return the snapshot payload version. Implementations of this method should return a constant.
      *
      * @return Snapshot payload version
      */
-    @Nonnull
-    abstract PayloadVersion version();
+    abstract @NonNull PayloadVersion version();
 
-    private void versionedSerialize(final DataOutputStream dos, final PayloadVersion version) throws IOException {
+    private void versionedSerialize(final ObjectOutput out, final PayloadVersion version) throws IOException {
         switch (version) {
             case BORON:
-                // Boron snapshots use Java Serialization
-                try (ObjectOutputStream oos = new ObjectOutputStream(dos)) {
-                    oos.writeObject(this);
-                }
+            case NEON_SR2:
+            case SODIUM_SR1:
+            case MAGNESIUM:
+                // Boron, NeonSR2, Sodium and Magnesium snapshots use Java Serialization, but differ in stream format
+                out.writeObject(this);
                 return;
             case TEST_FUTURE_VERSION:
             case TEST_PAST_VERSION:
@@ -93,15 +94,9 @@ abstract class AbstractVersionedShardDataTreeSnapshot extends ShardDataTreeSnaps
     }
 
     @Override
-    public final byte[] serialize() throws IOException {
-        try (final ByteArrayOutputStream bos = new ByteArrayOutputStream()) {
-            try (final DataOutputStream dos = new DataOutputStream(bos)) {
-                final PayloadVersion version = version();
-                version.writeTo(dos);
-                versionedSerialize(dos, version);
-            }
-
-            return bos.toByteArray();
-        }
+    public void serialize(final ObjectOutput out) throws IOException {
+        final PayloadVersion version = version();
+        version.writeTo(out);
+        versionedSerialize(out, version);
     }
 }