TradeProcessor.java

public class TradeProcessor implements BrokerService {
    private WalletService walletService = new WalletService();
    private ShareService shareService = new ShareService();

    @Override
    public boolean validateTrade(Trade trade) {
        if (!trade.isValid()) return false;

        // Specific validation based on trade type
        if (trade.getAction() == TradeAction.BUY) {
            return walletService.checkWalletBalance(trade.getTraderId(), trade.getSharePrice() * trade.getShareQuantity());
        } else if (trade.getAction() == TradeAction.SELL) {
            return shareService.checkShareQuantity(trade.getTraderId(), trade.getShareName(), trade.getShareQuantity());
        }
        return false;
    }

    @Override
    public String bookTrade(Trade trade) {
        // Generate internal TradeId if not present (for new trades)
        if (trade.getTradeId() == null) {
            trade.setTradeId(generateTradeId());
        }

        // Blocking resources
        if (trade.getAction() == TradeAction.BUY) {
            walletService.blockAmount(trade.getTraderId(), trade.getSharePrice() * trade.getShareQuantity());
        } else if (trade.getAction() == TradeAction.SELL) {
            shareService.blockShares(trade.getTraderId(), trade.getShareName(), trade.getShareQuantity());
        }

        // Send trade to Share Exchange via messaging system (Kafka)
        sendTradeToExchange(trade);

        // Store trade in database
        storeTrade(trade);

        return trade.getTradeId();
    }

    @Override
    public void updateTrade(Trade trade) {
        // Similar logic for updating the trade
    }

    @Override
    public void reportTradeStatus(String tradeId) {
        // Logic to fetch trade status and report back to the initiator
    }

    private String generateTradeId() {
        // Logic to generate a unique TradeId
        return UUID.randomUUID().toString();
    }

    private void sendTradeToExchange(Trade trade) {
        // Integration with Kafka/MQ to send the trade details
    }

    private void storeTrade(Trade trade) {
        // Save trade into the database
    }
}