public EstimatedHistogram deserialize(DataInputPlus in) throws IOException {
int size = in.readInt();
long[] offsets = new long[size - 1];
long[] buckets = new long[size];
for (int i = 0; i < size; i++) {
offsets[i == 0 ? 0 : i - 1] = in.readLong();
buckets[i] = in.readLong();
}
return new EstimatedHistogram(offsets, buckets);
}
private static Collection<Mutation> decodeMutations(DataInputPlus in, int version)
throws IOException {
int count = (int) in.readUnsignedVInt();
ArrayList<Mutation> mutations = new ArrayList<>(count);
for (int i = 0; i < count; i++) {
in.readUnsignedVInt(); // skip mutation size
mutations.add(Mutation.serializer.deserialize(in, version));
}
return mutations;
}
private static Collection<ByteBuffer> readEncodedMutations(DataInputPlus in)
throws IOException {
int count = (int) in.readUnsignedVInt();
ArrayList<ByteBuffer> mutations = new ArrayList<>(count);
for (int i = 0; i < count; i++) mutations.add(ByteBufferUtil.readWithVIntLength(in));
return mutations;
}
public Batch deserialize(DataInputPlus in, int version) throws IOException {
UUID id = UUIDSerializer.serializer.deserialize(in, version);
long creationTime = in.readLong();
/*
* If version doesn't match the current one, we cannot not just read the encoded mutations verbatim,
* so we decode them instead, to deal with compatibility.
*/
return version == MessagingService.current_version
? createRemote(id, creationTime, readEncodedMutations(in))
: createLocal(id, creationTime, decodeMutations(in, version));
}
public PrepareResponse deserialize(DataInputPlus in, int version) throws IOException {
boolean success = in.readBoolean();
Commit inProgress = Commit.serializer.deserialize(in, version);
Commit mostRecent;
if (version < MessagingService.VERSION_30) {
UUID ballot = UUIDSerializer.serializer.deserialize(in, version);
PartitionUpdate update =
PartitionUpdate.serializer.deserialize(
in, version, SerializationHelper.Flag.LOCAL, inProgress.update.partitionKey());
mostRecent = new Commit(ballot, update);
} else {
mostRecent = Commit.serializer.deserialize(in, version);
}
return new PrepareResponse(success, inProgress, mostRecent);
}
public Slices deserialize(DataInputPlus in, int version, CFMetaData metadata)
throws IOException {
int size = (int) in.readVInt();
if (size == 0) return NONE;
Slice[] slices = new Slice[size];
for (int i = 0; i < size; i++)
slices[i] = Slice.serializer.deserialize(in, version, metadata.comparator.subtypes());
if (size == 1
&& slices[0].start() == Slice.Bound.BOTTOM
&& slices[0].end() == Slice.Bound.TOP) return ALL;
return new ArrayBackedSlices(metadata.comparator, slices);
}
