public Optional<Auction> getAuction(String auctionName) {
BoundStatement auctionBoundStatement = getAuction.bind(auctionName);
Row auction = session.execute(auctionBoundStatement).one();
LOGGER.debug("Getting auction information for auction {} rows {}", auctionName, auction);
BoundStatement bidsBound = getAuctionBids.bind(auctionName);
List<BidVo> bids =
session
.execute(bidsBound)
.all()
.stream()
.map(
row ->
new BidVo(
row.getString("bid_user"),
row.getLong("bid_amount"),
UUIDs.unixTimestamp(row.getUUID("bid_time"))))
.collect(Collectors.toList());
return Optional.of(
new Auction(
auction.getString("name"),
Instant.ofEpochMilli(auction.getLong("ends")),
bids,
auction.getString("owner")));
}
public Serializable generateId(Session session) {
return UUIDs.timeBased();
}
private String genUniQID() {
UUID uniqueID = UUIDs.timeBased();
return uniqueID.toString();
}
public UUID placeBid(String auctionName, String user, Long amount) {
UUID uuid = UUIDs.timeBased();
BoundStatement bound = storeBid.bind(auctionName, uuid, amount, user);
session.execute(bound);
return uuid;
}