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/*
 * Tencent is pleased to support the open source community by making polaris-java available.
 *
 * Copyright (C) 2021 THL A29 Limited, a Tencent company. All rights reserved.
 *
 * Licensed under the BSD 3-Clause License (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * https://opensource.org/licenses/BSD-3-Clause
 *
 * 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 com.tencent.polaris.api.utils;

import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;

import com.tencent.polaris.api.pojo.Instance;

public class TimeUtils {

	private static final DateTimeFormatter DATE_TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");

	private TimeUtils() {

	}

	public static long getCreateTime(String createTime)  {
		if (StringUtils.isEmpty(createTime)) {
			return 0;
		}
		LocalDateTime dateTime = LocalDateTime.parse(createTime, DATE_TIME_FORMATTER);
		return dateTime.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli();
	}

	public static String getCreateTimeStr(Long createTime) {
		if (null == createTime) {
			return null;
		}
		LocalDateTime dateTime = LocalDateTime.ofInstant(Instant.ofEpochMilli(createTime), ZoneId.systemDefault());
		return DATE_TIME_FORMATTER.format(dateTime);
	}
}