software.crldev.elrondspringbootstarterreactive.config.ErdNetworkConfigSupplier Maven / Gradle / Ivy

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A SpringBoot Starter solution designed to ensure easy and efficient integration with the Elrond Network using a Reactive API layer.

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package software.crldev.elrondspringbootstarterreactive.config;

import software.crldev.elrondspringbootstarterreactive.api.model.NetworkConfig;
import software.crldev.elrondspringbootstarterreactive.interactor.network.ErdNetworkInteractor;
import javax.annotation.PostConstruct;
import java.math.BigInteger;

/**
 * Network configuration provider class
 * which synchronises at startup with the Elrond Gateway
 *
 * Source for network configuration values
 * Uses default static values from D chain in case synchronising doesn't succeed
 *
 * @author carlo_stanciu
 */
public class ErdNetworkConfigSupplier {
    private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(ErdNetworkConfigSupplier.class);
    private final ErdNetworkInteractor networkInteractor;
    public static NetworkConfig config;
    public static final Integer DEFAULT_VERSION = 1;

    /**
     * Main constructor used for dependency injection
     *
     * @param networkInteractor - component used to extract configuration from the network
     */
    public ErdNetworkConfigSupplier(ErdNetworkInteractor networkInteractor) {
        this.networkInteractor = networkInteractor;
    }

    static {
        config = NetworkConfig.builder().chainId("D").gasPerDataByte(1500L).minGasLimit(BigInteger.valueOf(70000L)).minGasPrice(BigInteger.valueOf(1000000000L)).minTransactionVersion(DEFAULT_VERSION).build();
    }

    /**
     * Method called at startup
     * which is using the NetworkInteractor
     * to synchronise the configuration from the network
     */
    @PostConstruct
    public void sync() {
        networkInteractor.getNetworkConfig().doOnSuccess(r -> {
            config = r;
            log.info("Elrond network configuration synced. Chain ID: {}", r.getChainId());
        }).doOnError(e -> log.error("Could not sync Elrond network configuration at startup. Using default configs for chain ID {}.", config.getChainId())).subscribe();
    }
}