JCDateTime.java

package ee.esutoniagodesu.util;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;

/**
 * useful static operations regarding date & time
 */
public final class JCDateTime {

    public static final String EN_US_SEC_T = "yyyy-MM-dd'T'HH-mm-ss";
    public static final DateFormat dfEnUsSecT = new SimpleDateFormat(EN_US_SEC_T);

    public static final String EN_US_THOUSANDTH_ = "yyyy-MM-dd_HH-mm-ss-SSS";
    public static final DateFormat dfEnUsThousandth_ = new SimpleDateFormat(EN_US_THOUSANDTH_);

    public static final String EN_US = "yyyy-MM-dd HH:mm";
    public static final DateFormat dfEnUs = new SimpleDateFormat(EN_US);

    public static final String EN_US_SEC = "yyyy-MM-dd HH:mm:ss";
    public static final DateFormat dfEnUsSec = new SimpleDateFormat(EN_US_SEC);

    public static final String EE_ET = "dd.MM.yyyy";
    public static final DateFormat dfEeEt = new SimpleDateFormat(EE_ET);

    public static final String EN_US_THOUSANDTH = "yyyy-MM-dd HH:mm:ss:SSS";
    public static final DateFormat dfEnUsThousandth = new SimpleDateFormat(EN_US_THOUSANDTH);

    /**
     * Return date and time string formatted as yyyy-MM-dd HH:mm
     */
    public static String now() {
        return dfEnUs.format(new java.util.Date());
    }

    public static String now(String format) {
        Calendar cal = Calendar.getInstance();
        SimpleDateFormat sdf = new SimpleDateFormat(format);
        return sdf.format(cal.getTime());
    }

    /**
     * Return date and time string formatted as yyyy-MM-dd HH:mm:ss
     */
    public static String nowIncludingSec() {
        return dfEnUsSec.format(new java.util.Date());
    }

    /**
     * Return date and time string formatted as yyyy-MM-dd HH:mm:ss:SSS
     */
    public static String nowIncludingThousandth() {
        return dfEnUsThousandth.format(new java.util.Date());
    }

    /**
     * Return date and time string formatted as yyyy-MM-dd'T'HH-mm-ss
     */
    public static String nowstamp() {
        return dfEnUsSecT.format(new java.util.Date());
    }

    /**
     * Return current unix time
     */
    public long nowlong() {
        return new java.util.Date().getTime();
    }

    public static String format(java.util.Date date, String format) {
        DateFormat df = new SimpleDateFormat(format);
        return df.format(date);
    }
}