PriceAPI.java

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package io.github.amithkoujalgi.fuelprices;
 
import io.github.amithkoujalgi.fuelprices.impl.GoodReturnsIn;
import io.github.amithkoujalgi.fuelprices.impl.NDTV;
import io.github.amithkoujalgi.fuelprices.types.FuelType;
import io.github.amithkoujalgi.fuelprices.types.PriceSource;
 
import java.io.IOException;
 
public class PriceAPI {
    private final PriceSource source;
 
    public PriceAPI(PriceSource source) {
        this.source = source;
    }
 
    public float fetch(String city, FuelType fuelType) throws IOException {
        if (PriceSource.NDTV == source) {
            return new NDTV().fetch(city, fuelType);
        } else if (PriceSource.GOOD_RETURNS_IN == source) {
            return new GoodReturnsIn().fetch(city, fuelType);
        } else {
            // use a default impl
            return new NDTV().fetch(city, fuelType);
        }
    }
}