Example usage for org.jfree.data.time Month findSeparator

Introduction

In this page you can find the example usage for org.jfree.data.time Month findSeparator.

Prototype

private static int findSeparator(String s) 

Source Link

Document

Finds the first occurrence of '-', or if that character is not found, the first occurrence of ',', or the first occurrence of ' ' or '.'

Usage

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

/**
 * Parses the string argument as a month.  This method is required to
 * accept the format "YYYY-MM".  It will also accept "MM-YYYY". Anything
 * else, at the moment, is a bonus.//from   ww  w.  java  2 s .c o m
 *
 * @param s  the string to parse (<code>null</code> permitted).
 *
 * @return <code>null</code> if the string is not parseable, the month
 *         otherwise.
 */
public static Month parseMonth(String s) {
    Month result = null;
    if (s == null) {
        return result;
    }
    // trim whitespace from either end of the string
    s = s.trim();
    int i = Month.findSeparator(s);
    String s1, s2;
    boolean yearIsFirst;
    // if there is no separator, we assume the first four characters
    // are YYYY
    if (i == -1) {
        yearIsFirst = true;
        s1 = s.substring(0, 5);
        s2 = s.substring(5);
    } else {
        s1 = s.substring(0, i).trim();
        s2 = s.substring(i + 1, s.length()).trim();
        // now it is trickier to determine if the month or year is first
        Year y1 = Month.evaluateAsYear(s1);
        if (y1 == null) {
            yearIsFirst = false;
        } else {
            Year y2 = Month.evaluateAsYear(s2);
            if (y2 == null) {
                yearIsFirst = true;
            } else {
                yearIsFirst = (s1.length() > s2.length());
            }
        }
    }
    Year year;
    int month;
    if (yearIsFirst) {
        year = Month.evaluateAsYear(s1);
        month = SerialDate.stringToMonthCode(s2);
    } else {
        year = Month.evaluateAsYear(s2);
        month = SerialDate.stringToMonthCode(s1);
    }
    if (month == -1) {
        throw new TimePeriodFormatException("Can't evaluate the month.");
    }
    if (year == null) {
        throw new TimePeriodFormatException("Can't evaluate the year.");
    }
    result = new Month(month, year);
    return result;
}

---