Percent.java

/**
 * creation date: 27.04.2006
 * first author: dsl
 *
 * (C) Copyright Die Softwareschneiderei GmbH, Karlsruhe, Germany
 */
package de.dhbw.tit07.progress.types;

import java.text.DecimalFormat;

public class Percent {

    public static final Percent ONEHUNDRED_PERCENT = Percent.createFromFactor(1.0d);
    public static final double PERCENTAGE_FACTOR = 100.0d;

    private final double value;

    public Percent(double value) {
        super();
        this.value = value;
    }

    public static Percent createFromFactor(double factor) {
        return new Percent(factor * Percent.PERCENTAGE_FACTOR);
    }

    public static Percent createFromFactor(int part, int whole) {
        return Percent.createFromFactor(((double) part) / whole);
    }

    public double getValue() {
        return this.value;
    }

    public double getAsFactor() {
        return (getValue() / Percent.PERCENTAGE_FACTOR);
    }

    @Override
    public String toString() {
        return toFormattedString(null);
    }

    public String toFormattedString(DecimalFormat format) {
        StringBuilder result = new StringBuilder();
        if (format != null) {
            result.append(format.format(getValue()));
        } else {
            result.append(getValue());
        }
        result.append(" %"); //$NON-NLS-1$
        return result.toString();
    }

	/**
	 * Bastard code, got generated by Eclipse 3.4.1
	 */
	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		long temp;
		temp = Double.doubleToLongBits(this.value);
		result = prime * result + (int) (temp ^ (temp >>> 32));
		return result;
	}

	/**
	 * Bastard code, got generated by Eclipse 3.4.1
	 */
	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		Percent other = (Percent) obj;
		if (Double.doubleToLongBits(this.value) != Double
				.doubleToLongBits(other.value))
			return false;
		return true;
	}
}