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lightweight connector to API

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package com.binance.connector.client.utils;

import com.binance.connector.client.exceptions.BinanceConnectorException;
import java.util.LinkedHashMap;

public class ParameterChecker {

    private ParameterChecker() {
    }

    public static void checkParameter(LinkedHashMap parameters, String parameter, Class t) {
        if (checkRequiredParameter(parameters, parameter)) {
            checkParameterType(parameters.get(parameter), t, parameter);
        }
    }

    public static boolean checkRequiredParameter(LinkedHashMap parameters, String parameter) {
        if (!parameters.containsKey(parameter)) {
            throw new BinanceConnectorException(String.format("\"%s\" is a mandatory parameter!", parameter));
        }
        return true;
    }

    public static boolean checkParameterType(Object parameter, Class t, String name) {
        if (!t.isInstance(parameter)) {
            throw new BinanceConnectorException(String.format("\"%s\" must be of %s type.", name, t));
        }
        return true;
    }
}