package integral;

import java.rmi.RemoteException;

public abstract class Quadrature implements IntegralService {
	protected Double eps;
	abstract protected Double rule(Function<Double, Double> f, Double a, Double b);
	
	public Quadrature(Double eps) {
		super();
		this.eps = eps;
	}

	@Override
	public Double compute(Function<Double, Double> f, Range<Double> interval)
	throws RemoteException {
		double start = interval.getBegin();
		double end = interval.getEnd();

		double acc = 0.0;
		double a = start;
		double b = a + eps;
		while(b < end) {
			acc = acc + rule(f, a, b);
			a = b;
			b = a + eps;
		}
		b = end;
		acc = acc + rule(f, a, b);

		return acc;
	}


}