org.apache.pulsar.common.util.DateFormatter Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.pulsar.common.util;
import java.time.Instant;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeParseException;
/**
* Date-time String formatter utility class.
*/
public class DateFormatter {
private static final DateTimeFormatter DATE_FORMAT = DateTimeFormatter.ISO_OFFSET_DATE_TIME
.withZone(ZoneId.systemDefault());
/**
* @return a String representing the current datetime
*/
public static String now() {
return format(Instant.now());
}
/**
* @return a String representing a particular timestamp (in milliseconds)
*/
public static String format(long timestamp) {
return format(Instant.ofEpochMilli(timestamp));
}
/**
* @return a String representing a particular time instant
*/
public static String format(Instant instant) {
return DATE_FORMAT.format(instant);
}
/**
* @param datetime
* @return the parsed timestamp (in milliseconds) of the provided datetime
* @throws DateTimeParseException
*/
public static long parse(String datetime) throws DateTimeParseException {
Instant instant = Instant.from(DATE_FORMAT.parse(datetime));
return instant.toEpochMilli();
}
private DateFormatter() {
}
}