public static void updateLastParsedBlock(Integer block_index) {
Database db = Database.getInstance();
db.executeUpdate(
"REPLACE INTO sys_parameters (para_name,para_value) values ('last_parsed_block','"
+ block_index.toString()
+ "');");
}
public static void credit(
String address,
String asset,
BigInteger amount,
String callingFunction,
String event,
Integer blockIndex) {
Database db = Database.getInstance();
if (hasBalance(address, asset)) {
BigInteger existingAmount = getBalance(address, asset);
BigInteger newAmount = existingAmount.add(amount);
db.executeUpdate(
"update balances set amount='"
+ newAmount.toString()
+ "' where address='"
+ address
+ "' and asset='"
+ asset
+ "';");
} else {
db.executeUpdate(
"insert into balances(address, asset, amount) values('"
+ address
+ "','"
+ asset
+ "','"
+ amount.toString()
+ "');");
}
db.executeUpdate(
"insert into credits(address, asset, amount, calling_function, event, block_index) values('"
+ address
+ "','"
+ asset
+ "','"
+ amount.toString()
+ "', '"
+ callingFunction
+ "', '"
+ event
+ "', '"
+ blockIndex.toString()
+ "');");
}
public void add(String f1, String f2, String f3, String f4, String f5, String f6, String f7) {
Database DB = new Database();
this.field1 = f1;
this.field2 = f2;
this.field3 = f3;
this.field4 = f4;
this.field5 = f5;
this.field6 = f6;
this.field7 = f7;
sql =
"insert into AssetsTrjn(JourNo,FromAcc,AssetsID,RegDate,PersonID,Usefor,Other) values ('"
+ field1
+ "','"
+ field2
+ "','"
+ field3
+ "','"
+ field4
+ "','"
+ field5
+ "','"
+ field6
+ "','"
+ field7
+ "')";
try {
DB.OpenConn();
DB.executeUpdate(sql);
} catch (Exception e) {
// System.out.println(e);
JOptionPane.showMessageDialog(null, "啊哦，保存失败了~", "错误", JOptionPane.ERROR_MESSAGE);
} finally {
DB.closeStmt();
DB.closeConn();
}
}
public static void parse(Integer txIndex, List<Byte> message) {
Database db = Database.getInstance();
ResultSet rs =
db.executeQuery("select * from transactions where tx_index=" + txIndex.toString());
try {
if (rs.next()) {
String source = rs.getString("source");
String destination = rs.getString("destination");
BigInteger btcAmount = BigInteger.valueOf(rs.getLong("btc_amount"));
BigInteger fee = BigInteger.valueOf(rs.getLong("fee"));
Integer blockIndex = rs.getInt("block_index");
String txHash = rs.getString("tx_hash");
ResultSet rsCheck =
db.executeQuery("select * from bets where tx_index='" + txIndex.toString() + "'");
if (rsCheck.next()) return;
if (message.size() == length) {
ByteBuffer byteBuffer = ByteBuffer.allocate(length);
for (byte b : message) {
byteBuffer.put(b);
}
BigInteger bet = BigInteger.valueOf(byteBuffer.getLong(0));
Double chance = byteBuffer.getDouble(8);
Double payout = byteBuffer.getDouble(16);
Double houseEdge = Config.houseEdge;
// PROTOCOL CHANGE
Double oldHouseEdge = 0.02;
Boolean payoutChanceCongruent =
Util.roundOff(chance, 6) == Util.roundOff(100.0 / (payout / (1.0 - houseEdge)), 6)
|| Util.roundOff(chance, 6)
== Util.roundOff(100.0 / (payout / (1.0 - oldHouseEdge)), 6);
BigInteger chaSupply = Util.chaSupplyForBetting();
String validity = "invalid";
if (!source.equals("")
&& bet.compareTo(BigInteger.ZERO) > 0
&& chance > 0.0
&& chance < 100.0
&& payout > 1.0
&& payoutChanceCongruent) {
if (bet.compareTo(Util.getBalance(source, "CHA")) <= 0) {
if ((payout - 1.0) * bet.doubleValue() < chaSupply.doubleValue() * Config.maxProfit) {
validity = "valid";
Util.debit(source, "CHA", bet, "Debit bet amount", txHash, blockIndex);
}
}
}
db.executeUpdate(
"insert into bets(tx_index, tx_hash, block_index, source, bet, chance, payout, profit, cha_supply, validity) values('"
+ txIndex.toString()
+ "','"
+ txHash
+ "','"
+ blockIndex.toString()
+ "','"
+ source
+ "','"
+ bet.toString()
+ "','"
+ chance.toString()
+ "','"
+ payout.toString()
+ "','0','"
+ chaSupply.toString()
+ "','"
+ validity
+ "')");
}
}
} catch (SQLException e) {
}
}
public static void resolve() {
// resolve bets
logger.info("Resolving bets");
Database db = Database.getInstance();
ResultSet rs =
db.executeQuery(
"select block_time,blocks.block_index as block_index,tx_index,tx_hash,source,bet,payout,chance,cha_supply from bets,blocks where bets.block_index=blocks.block_index and bets.validity='valid' and bets.resolved IS NOT 'true';");
// if (true) return;
SimpleDateFormat dateFormatStandard = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss z");
SimpleDateFormat dateFormatDateTimeLotto = new SimpleDateFormat("MM/dd/yyyy HH:mm");
SimpleDateFormat dateFormatDateLotto = new SimpleDateFormat("dd/MM/yyyy");
SimpleDateFormat dateFormatHour = new SimpleDateFormat("HH");
SimpleDateFormat dateFormatMinute = new SimpleDateFormat("mm");
TimeZone newYork = TimeZone.getTimeZone("America/New_York");
TimeZone UTC = TimeZone.getTimeZone("UTC");
dateFormatStandard.setTimeZone(UTC);
dateFormatDateLotto.setTimeZone(newYork);
dateFormatDateTimeLotto.setTimeZone(newYork);
dateFormatHour.setTimeZone(newYork);
dateFormatMinute.setTimeZone(newYork);
try {
while (rs.next()) {
String source = rs.getString("source");
String txHash = rs.getString("tx_hash");
Integer txIndex = rs.getInt("tx_index");
Integer blockIndex = rs.getInt("block_index");
BigInteger bet = BigInteger.valueOf(rs.getLong("bet"));
Double payout = rs.getDouble("payout");
Double chance = rs.getDouble("chance");
BigInteger chaSupply = BigInteger.valueOf(rs.getLong("cha_supply"));
Date blockTime = new Date((long) rs.getLong("block_time") * 1000);
logger.info("Attempting to resolve bet " + txHash);
String lottoDate = dateFormatDateLotto.format(blockTime);
Integer hour = Integer.parseInt(dateFormatHour.format(blockTime));
Integer minute = Integer.parseInt(dateFormatMinute.format(blockTime));
if (hour >= 23 && minute >= 56) {
lottoDate = dateFormatDateLotto.format(addDays(blockTime, 1));
}
String lottoUrl =
"http://nylottery.ny.gov/wps/PA_NYSLNumberCruncher/NumbersServlet?game=quick&action=winningnumbers&startSearchDate="
+ lottoDate
+ "&endSearchDate=&pageNo=&last=&perPage=999&sort=";
String lottoPage = Util.getPage(lottoUrl);
logger.info("Getting lottery numbers " + lottoUrl);
try {
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
LottoResult lottoMap = objectMapper.readValue(lottoPage, LottoResult.class);
for (LottoDraw draw : lottoMap.draw) {
Date time = dateFormatDateTimeLotto.parse(draw.date);
if (time.after(blockTime)) {
logger.info("Found lottery numbers we can use to resolve bet");
BigInteger denominator =
combinations(BigInteger.valueOf(80), BigInteger.valueOf(20))
.subtract(BigInteger.ONE);
BigInteger n = BigInteger.ZERO;
BigInteger i = BigInteger.ONE;
for (BigInteger number : draw.numbersDrawn) {
n = n.add(combinations(number.subtract(BigInteger.ONE), i));
i = i.add(BigInteger.ONE);
}
Double rollA = n.doubleValue() / (denominator.doubleValue());
Double rollB =
(new BigInteger(txHash.substring(10, txHash.length()), 16))
.mod(BigInteger.valueOf(1000000000))
.doubleValue()
/ 1000000000.0;
Double roll = (rollA + rollB) % 1.0;
roll = roll * 100.0;
logger.info("Roll = " + roll.toString() + ", chance = " + chance.toString());
BigInteger profit = BigInteger.ZERO;
if (roll < chance) {
logger.info("The bet is a winner");
// win
profit =
new BigDecimal(
bet.doubleValue()
* (payout.doubleValue() - 1.0)
* chaSupply.doubleValue()
/ (chaSupply.doubleValue()
- bet.doubleValue() * payout.doubleValue()))
.toBigInteger();
BigInteger credit = profit.add(bet);
Util.credit(source, "CHA", credit, "Bet won", txHash, blockIndex);
} else {
logger.info("The bet is a loser");
// lose
profit = bet.multiply(BigInteger.valueOf(-1));
}
db.executeUpdate(
"update bets set profit='"
+ profit.toString()
+ "', rolla='"
+ (rollA * 100.0)
+ "', rollb='"
+ (rollB * 100.0)
+ "', roll='"
+ roll
+ "', resolved='true' where tx_index='"
+ txIndex
+ "';");
break;
}
}
} catch (Exception e) {
logger.error(e.toString());
}
}
} catch (SQLException e) {
logger.error(e.toString());
}
}
public static void dropTable(String name) throws SQLException, ClassNotFoundException {
Database.executeUpdate("DROP TABLE " + name + ";");
}
public static void createTable(String name, String fields)
throws SQLException, ClassNotFoundException {
Database.executeUpdate("CREATE TABLE " + name + " (" + fields + ");");
}