scouter.util.DateUtil Maven / Gradle / Ivy
/*
* Copyright 2015 the original author or authors.
* @https://github.com/scouter-project/scouter
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package scouter.util;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Hashtable;
import java.util.Locale;
public class DateUtil {
public static final long MILLIS_PER_SECOND = 1000;
public static final long MILLIS_PER_MINUTE = 60 * MILLIS_PER_SECOND;
public static final long MILLIS_PER_FIVE_MINUTE = 5 * 60 * MILLIS_PER_SECOND;
public static final long MILLIS_PER_TEN_MINUTE = 10 * MILLIS_PER_MINUTE;
public static final long MILLIS_PER_HOUR = 60 * MILLIS_PER_MINUTE;
public static final long MILLIS_PER_DAY = 24 * MILLIS_PER_HOUR;
public static final int SECONDS_PER_DAY = (int) (MILLIS_PER_DAY / 1000);
public final static DateTimeHelper helper = DateTimeHelper.getDefault();
public static String datetime(long time) {
return helper.datetime(time);
}
public static String timestamp(long time) {
return helper.timestamp(time);
}
public static String yyyymmdd(long time) {
return helper.yyyymmdd(time);
}
public static long getDateUnit() {
return helper.getDateUnit();
}
public static long getDateUnit(long time) {
return helper.getDateUnit(time);
}
public static String ymdhms(long time) {
return helper.yyyymmdd(time) + helper.hhmmss(time);
}
public static String hhmmss(long time) {
return helper.hhmmss(time);
}
public static String hhmm(long now) {
return helper.hhmm(now);
}
public static String yyyymmdd() {
return helper.yyyymmdd(System.currentTimeMillis());
}
public static String getLogTime(long time) {
return helper.logtime(time);
}
public static long yyyymmdd(String date) {
return helper.yyyymmdd(date);
}
public static long hhmm(String date) {
return helper.hhmm(date);
}
public static long getTime(String date, String format) {
if (format.equals("yyyyMMdd"))
return helper.yyyymmdd(date);
try {
SimpleDateFormat sdf = parsers.get(format);
if (sdf == null) {
sdf = new SimpleDateFormat(format);
parsers.put(format, sdf);
}
synchronized (sdf) {
return sdf.parse(date).getTime();
}
} catch (ParseException e) {
return 0;
}
}
private static Hashtable parsers = new Hashtable();
public static String format(long stime, String format) {
if (format.equals("yyyyMMdd"))
return helper.yyyymmdd(stime);
SimpleDateFormat sdf = parsers.get(format);
if (sdf == null) {
sdf = new SimpleDateFormat(format);
parsers.put(format, sdf);
}
synchronized (sdf) {
return sdf.format(new Date(stime));
}
}
public static String format(long stime, String format, Locale locale) {
if (format.equals("yyyyMMdd"))
return helper.yyyymmdd(stime);
SimpleDateFormat sdf = parsers.get(format + locale.getCountry());
if (sdf == null) {
sdf = new SimpleDateFormat(format, locale);
parsers.put(format + locale.getCountry(), sdf);
}
synchronized (sdf) {
return sdf.format(new Date(stime));
}
}
public static long parse(String date, String format) {
if (format.equals("yyyyMMdd"))
return helper.yyyymmdd(date);
SimpleDateFormat sdf = parsers.get(format);
if (sdf == null) {
sdf = new SimpleDateFormat(format);
parsers.put(format, sdf);
}
synchronized (sdf) {
try {
return sdf.parse(date).getTime();
} catch (ParseException e) {
return helper.getBaseTime();
}
}
}
public static boolean isSameDay(Date date, Date date2) {
return helper.getDateUnit(date.getTime()) == helper.getDateUnit(date2.getTime());
}
public static boolean isToday(long time) {
return helper.getDateUnit(time) == helper.getDateUnit(System.currentTimeMillis());
}
public static int getHour(Date date) {
return helper.getHour(date.getTime());
}
public static int getMin(Date date) {
return helper.getMM(date.getTime());
}
public static int getHour(long time) {
return helper.getHour(time);
}
public static int getMin(long time) {
return helper.getMM(time);
}
public static String timestamp() {
return helper.timestamp(System.currentTimeMillis());
}
public static String timestampFileName() {
return helper.timestampFileName(System.currentTimeMillis());
}
public static int getDateMillis(long time) {
return helper.getDateMillis(time);
}
public static long getTimeUnit(long time) {
return helper.getTimeUnit(time);
}
public static long getHourUnit(long time) {
return helper.getHourUnit(time);
}
public static long getTenMinUnit(long time) {
return helper.getTenMinUnit(time);
}
public static long getMinUnit(long time) {
return helper.getMinUnit(time);
}
public static long reverseHourUnit(long unit) {
return helper.reverseHourUnit(unit);
}
public static long now() {
return System.currentTimeMillis();
}
public static void main(String[] args) throws ParseException {
String date;
long time;
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd HH:mm:ss.S");
long cpu = SysJMX.getCurrentThreadCPUnano();
for (int i = 0; i < 10000; i++) {
date = sdf.format(new Date(System.currentTimeMillis() + i));
}
cpu = SysJMX.getCurrentThreadCPUnano() - cpu;
System.out.println("SimpleDateFormat.format " + cpu / 1000000L + " ms");
cpu = SysJMX.getCurrentThreadCPUnano();
for (int i = 0; i < 10000; i++) {
date = DateUtil.timestamp(System.currentTimeMillis() + i);
}
cpu = SysJMX.getCurrentThreadCPUnano() - cpu;
System.out.println("DateUtil.format " + cpu / 1000000L + " ms");
sdf = new SimpleDateFormat("yyyyMMdd");
cpu = SysJMX.getCurrentThreadCPUnano();
for (int i = 0; i < 10000; i++) {
time = sdf.parse("20101123").getTime();
}
cpu = SysJMX.getCurrentThreadCPUnano() - cpu;
System.out.println("SimpleDateFormat.parse " + cpu / 1000000L + " ms");
cpu = SysJMX.getCurrentThreadCPUnano();
for (int i = 0; i < 10000; i++) {
time = DateUtil.yyyymmdd("20101123");
}
cpu = SysJMX.getCurrentThreadCPUnano() - cpu;
System.out.println("DateUtil.parse " + cpu / 1000000L + " ms");
}
}