Example usage for org.jfree.data.time Week evaluateAsYear

Introduction

In this page you can find the example usage for org.jfree.data.time Week evaluateAsYear.

Prototype

private static Year evaluateAsYear(String s) 

Source Link

Document

Creates a year from a string, or returns null (format exceptions suppressed).

Usage

From source file:org.jfree.data.time.Week.java

/**
 * Parses the string argument as a week.
 * <P>/*www  .j a va 2  s .  co  m*/
 * This method is required to accept the format "YYYY-Wnn".  It will also
 * accept "Wnn-YYYY". Anything else, at the moment, is a bonus.
 *
 * @param s  string to parse.
 *
 * @return <code>null</code> if the string is not parseable, the week
 *         otherwise.
 */
public static Week parseWeek(String s) {

    Week result = null;
    if (s != null) {

        // trim whitespace from either end of the string
        s = s.trim();

        int i = Week.findSeparator(s);
        if (i != -1) {
            String s1 = s.substring(0, i).trim();
            String s2 = s.substring(i + 1, s.length()).trim();

            Year y = Week.evaluateAsYear(s1);
            int w;
            if (y != null) {
                w = Week.stringToWeek(s2);
                if (w == -1) {
                    throw new TimePeriodFormatException("Can't evaluate the week.");
                }
                result = new Week(w, y);
            } else {
                y = Week.evaluateAsYear(s2);
                if (y != null) {
                    w = Week.stringToWeek(s1);
                    if (w == -1) {
                        throw new TimePeriodFormatException("Can't evaluate the week.");
                    }
                    result = new Week(w, y);
                } else {
                    throw new TimePeriodFormatException("Can't evaluate the year.");
                }
            }

        } else {
            throw new TimePeriodFormatException("Could not find separator.");
        }

    }
    return result;

}

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