internal override void Visit(UploadVersionRequest req)
{
VersionEntry ve = this.GetVersionEntryByKey(req.TableId, req.RecordKey, req.VersionKey, req.LocalVerEntry);
if (ve == null)
{
this.CQLExecute(string.Format(PartitionedCassandraVersionTable.CQL_UPLOAD_VERSION_ENTRY,
req.TableId,
req.RecordKey.ToString(),
req.VersionEntry.VersionKey,
req.VersionEntry.BeginTimestamp,
req.VersionEntry.EndTimestamp,
BytesSerializer.ToHexString(BytesSerializer.Serialize(req.VersionEntry.Record)),
req.VersionEntry.TxId,
req.VersionEntry.MaxCommitTs));
req.RemoteVerEntry = req.VersionEntry;
req.Result = true;
}
else // write-write conflict
{
req.RemoteVerEntry = req.VersionEntry;
req.Result = false;
}
req.Finished = true;
}
internal override void Visit(ReplaceWholeVersionRequest req)
{
this.CQLExecute(string.Format(PartitionedCassandraVersionTable.CQL_REPLACE_WHOLE_VERSION,
req.TableId, req.VersionEntry.BeginTimestamp, req.VersionEntry.EndTimestamp,
BytesSerializer.ToHexString(BytesSerializer.Serialize(req.VersionEntry.Record)),
req.VersionEntry.TxId, req.VersionEntry.MaxCommitTs,
req.RecordKey.ToString(), req.VersionEntry.VersionKey));
req.Result = 1L;
req.Finished = true;
}
internal override void Visit(UploadVersionRequest req)
{
bool applied = this.CQLExecuteWithIfApplied(string.Format(CassandraVersionTable.CQL_UPLOAD_VERSION_ENTRY,
req.TableId,
req.RecordKey.ToString(),
req.VersionEntry.VersionKey,
req.VersionEntry.BeginTimestamp,
req.VersionEntry.EndTimestamp,
BytesSerializer.ToHexString(BytesSerializer.Serialize(req.VersionEntry.Record)),
req.VersionEntry.TxId,
req.VersionEntry.MaxCommitTs));
req.Result = applied ? 1L : 0L;
req.Finished = true;
}
internal override void Visit(InitiGetVersionListRequest req)
{
VersionEntry emptyEntry = VersionEntry.InitEmptyVersionEntry();
this.CQLExecute(string.Format(PartitionedCassandraVersionTable.CQL_UPLOAD_VERSION_ENTRY,
req.TableId,
req.RecordKey.ToString(),
emptyEntry.VersionKey,
emptyEntry.BeginTimestamp,
emptyEntry.EndTimestamp,
BytesSerializer.ToHexString(BytesSerializer.Serialize(emptyEntry.Record)),
emptyEntry.TxId,
emptyEntry.MaxCommitTs));
req.Result = true;
req.Finished = true;
}