/*
 *  MIT License
 *
 *  Copyright (c) 2019 Michael Pogrebinsky - Distributed Systems & Cloud Computing with Java
 *
 *  Permission is hereby granted, free of charge, to any person obtaining a copy
 *  of this software and associated documentation files (the "Software"), to deal
 *  in the Software without restriction, including without limitation the rights
 *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *  copies of the Software, and to permit persons to whom the Software is
 *  furnished to do so, subject to the following conditions:
 *
 *  The above copyright notice and this permission notice shall be included in all
 *  copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 *  SOFTWARE.
 */

import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.kafka.common.serialization.Serializer;

public class Transaction {
    private String user;
    private double amount;
    private String transactionLocation;

    public Transaction(String user, double amount, String transactionLocation) {
        this.user = user;
        this.amount = amount;
        this.transactionLocation = transactionLocation;
    }

    public String getUser() {
        return user;
    }

    public double getAmount() {
        return amount;
    }

    public String getTransactionLocation() {
        return transactionLocation;
    }

    @Override
    public String toString() {
        return "Transaction{" +
                "user='" + user + '\'' +
                ", amount=" + amount +
                ", transactionLocation='" + transactionLocation + '\'' +
                '}';
    }

    /**
     * Kafka Serializer implementation.
     * Serializes a Transaction to JSON so it can be sent to a Kafka Topic
     */
    public static class TransactionSerializer implements Serializer<Transaction> {
        @Override
        public byte[] serialize(String topic, Transaction data) {
            byte[] serializedData = null;
            ObjectMapper objectMapper = new ObjectMapper();
            try {
                serializedData = objectMapper.writeValueAsString(data).getBytes();
            } catch (Exception e) {
                e.printStackTrace();
            }
            return serializedData;
        }
    }
}
