Parameters.java

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package jarmos;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class Parameters {

    private class Parameter {
        public String name, label;
        double min;
        double max;

        public Parameter(String name, double minval, double maxval) {
            this(name, minval, maxval, name);
        }

        public Parameter(String name, double minval, double maxval, String label) {
            this.name = name;
            this.label = label;
            this.max = maxval;
            this.min = minval;
        }
    }

    private List<Parameter> params;
    private double[] values;

    public Parameters() {
        params = new ArrayList<Parameter>();
        values = new double[0];
    }

    public void addParam(String name, double minval, double maxval) {
        params.add(new Parameter(name, minval, maxval));
        double[] tmp = values.clone();
        values = new double[values.length + 1];
        for (int i = 0; i < tmp.length; i++) {
            values[i] = tmp[i];
        }
        values[values.length - 1] = minval;
    }

    public double[] getCurrent() {
        return values;
    }

    public void setCurrent(double[] newvalues) {
        if (values.length != newvalues.length)
            throw new IllegalArgumentException("Wrong parameter values length. Current: " + values.length + ", Wanted:"
                    + newvalues.length);
        for (int i = 0; i < values.length; i++) {
            values[i] = newvalues[i];
        }
    }

    public void setCurrent(int index, double value) {
        if (index < 0 || index > values.length - 1)
            throw new IllegalArgumentException("Invalid parameter index: " + index + ". Max index is "
                    + (values.length - 1));
        values[index] = value;
    }

    public double getMaxValue(int i) {
        return params.get(i).max;
    }

    public double getMinValue(int i) {
        return params.get(i).min;
    }

    public String getLabel(int i) {
        return params.get(i).label;
    }

    public String getName(int i) {
        return params.get(i).name;
    }

    // public List<Parameter> getParams() {
    // return Collections.unmodifiableList(params);
    // }

    public int getNumParams() {
        return params.size();
    }

    public double[] getRandomParam() {
        double[] res = new double[getNumParams()];
        Random r = new Random(System.currentTimeMillis());
        for (int i = 0; i < res.length; i++) {
            res[i] = params.get(i).min + r.nextDouble() * (params.get(i).max - params.get(i).min);
        }
        return res;
    }

}