Track skipped transactions

[controller.git] / opendaylight / md-sal / cds-access-api / src / main / java / org / opendaylight / controller / cluster / access / commands / SkipTransactionsRequestV1.java

diff --git a/opendaylight/md-sal/cds-access-api/src/main/java/org/opendaylight/controller/cluster/access/commands/SkipTransactionsRequestV1.java b/opendaylight/md-sal/cds-access-api/src/main/java/org/opendaylight/controller/cluster/access/commands/SkipTransactionsRequestV1.java
new file mode 100644 (file)
index 0000000..c7c383c
--- /dev/null
+++ b/opendaylight/md-sal/cds-access-api/src/main/java/org/opendaylight/controller/cluster/access/commands/SkipTransactionsRequestV1.java
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2021 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.access.commands;
+
+import akka.actor.ActorRef;
+import com.google.common.collect.ImmutableList;
+import com.google.common.primitives.UnsignedLong;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import java.util.List;
+import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
+import org.opendaylight.yangtools.concepts.WritableObjects;
+
+/**
+ * Externalizable proxy for use with {@link SkipTransactionsRequest}. It implements the initial
+ * (Phosphorus SR1) serialization format.
+ */
+final class SkipTransactionsRequestV1 extends AbstractTransactionRequestProxy<SkipTransactionsRequest> {
+    private List<UnsignedLong> others;
+
+    // checkstyle flags the public modifier as redundant however it is explicitly needed for Java serialization to
+    // be able to create instances via reflection.
+    @SuppressWarnings("checkstyle:RedundantModifier")
+    public SkipTransactionsRequestV1() {
+        // For Externalizable
+    }
+
+    SkipTransactionsRequestV1(final SkipTransactionsRequest request) {
+        super(request);
+        others = request.getOthers();
+    }
+
+    @Override
+    public void readExternal(final ObjectInput in) throws IOException, ClassNotFoundException {
+        super.readExternal(in);
+
+        final int size = in.readInt();
+        final var builder = ImmutableList.<UnsignedLong>builderWithExpectedSize(size);
+        int idx;
+        if (size % 2 != 0) {
+            builder.add(UnsignedLong.fromLongBits(WritableObjects.readLong(in)));
+            idx = 1;
+        } else {
+            idx = 0;
+        }
+        for (; idx < size; idx += 2) {
+            final byte hdr = WritableObjects.readLongHeader(in);
+            builder.add(UnsignedLong.fromLongBits(WritableObjects.readFirstLong(in, hdr)));
+            builder.add(UnsignedLong.fromLongBits(WritableObjects.readSecondLong(in, hdr)));
+        }
+        others = builder.build();
+    }
+
+    @Override
+    public void writeExternal(final ObjectOutput out) throws IOException {
+        super.writeExternal(out);
+
+        final int size = others.size();
+        out.writeInt(size);
+
+        int idx;
+        if (size % 2 != 0) {
+            WritableObjects.writeLong(out, others.get(0).longValue());
+            idx = 1;
+        } else {
+            idx = 0;
+        }
+        for (; idx < size; idx += 2) {
+            WritableObjects.writeLongs(out, others.get(idx).longValue(), others.get(idx + 1).longValue());
+        }
+    }
+
+    @Override
+    protected SkipTransactionsRequest createRequest(final TransactionIdentifier target, final long sequence,
+            final ActorRef replyToActor) {
+        return new SkipTransactionsRequest(target, sequence, replyToActor, others);
+    }
+}