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import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;
/**
* Sample implementation of a pricing agent.
*
* Chooses the mean of the the competitor prices of the last period as its own
* price.
*
*/
public class SimpleAgent implements ShopAgentInterface {
// list to store the prices of the competitors
List<Double> allPrices;
// constants
static double p_uvp = 15.0;
static double p_max = 1.5 * p_uvp;
static double p_ek = 10.0;
/**
* Constructor.
*
* Instantiates the price list.
*/
public SimpleAgent() {
allPrices = new ArrayList<Double>();
}
public double getPrice() throws Exception {
// our price
double ownPrice;
// calculate the price; if first period choose p_uvp
if (allPrices.size() == 0) {
ownPrice = p_uvp;
} else {
ownPrice = getMeanPrice();
}
// map to p_max or p_min if needed
if (ownPrice >= p_max)
ownPrice = p_max - 0.5;
if (ownPrice <= p_ek)
ownPrice = 10.5;
// round the price according to the requirements
BigDecimal bd = new BigDecimal(ownPrice);
ownPrice = bd.setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
return ownPrice;
}
public void parseSales(int sales) throws Exception {
}
public void parsePrices(List<Double> prices) throws Exception {
allPrices = prices;
}
/**
* Get the mean price.
*
* @return mean of allPrices
*/
private double getMeanPrice() {
double s = 0.0;
for (int i = 0; i < allPrices.size(); i++) {
s = s + allPrices.get(i);
}
s = s / allPrices.size();
return s;
}
}
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