com.mobaijun.influxdb.util.CommonUtil Maven / Gradle / Ivy
/*
* Copyright (C) 2022 www.mobaijun.com
*
* 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
*
* https://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 com.mobaijun.influxdb.util;
import com.mobaijun.influxdb.core.constant.Constant;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.util.regex.Matcher;
/**
* Software：IntelliJ IDEA 2021.3.2
* ClassName: CommonUtil
* 类描述： 工具类
*
* @author MoBaiJun 2022/4/29 14:15
*/
public class CommonUtil {
/**
* 时间转换 Instant字符串时间转 LocalDateTime
*
* @param time time
* @return LocalDateTime
*/
public static LocalDateTime parseStringToLocalDateTime(String time) {
return LocalDateTime.parse(time, DateTimeFormatter.ISO_DATE_TIME);
}
/**
* localDateTime 转 Instant
*
* @param localDateTime localDateTime
* @return Instant
*/
public static Instant parseLocalDateTimeToInstant(LocalDateTime localDateTime) {
return localDateTime.atZone(ZoneId.systemDefault()).toInstant();
}
/**
* 下划线转驼峰
*
* @param str String
* @return String
*/
public static String lineToHump(String str) {
Matcher matcher = Constant.LINE_PATTERN.matcher(str.toLowerCase());
StringBuilder sb = new StringBuilder();
while (matcher.find()) {
matcher.appendReplacement(sb, matcher.group(1).toUpperCase());
}
matcher.appendTail(sb);
return sb.toString();
}
/**
* 驼峰转下划线
*
* @param str str
* @return String
*/
public static String humpToLine(String str) {
Matcher matcher = Constant.HUMP_PATTERN.matcher(str);
StringBuilder sb = new StringBuilder();
while (matcher.find()) {
matcher.appendReplacement(sb, Constant.UNDERSCORE + matcher.group(0).toLowerCase());
}
matcher.appendTail(sb);
return sb.toString();
}
}