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add ip utils class

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pengdou@analysys.com.cn 2019-06-26 19:50:35 +08:00
parent bb4471c008
commit d83e0b6317
1 changed files with 70 additions and 0 deletions
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escheduler-common/src/main/java/cn/escheduler/common/utils/IpUtils.java Normal file
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/*
* 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 cn.escheduler.common.utils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* http utils
*/
public class IpUtils {
private static final Logger logger = LoggerFactory.getLogger(IpUtils.class);
public static final String DOT = ".";
/**
* ip str to long <p>
*
* @param ipStr ip string
*/
public static Long ipToLong(String ipStr) {
String[] ipSet = ipStr.split("\\" + DOT);
return Long.parseLong(ipSet[0]) << 24 | Long.parseLong(ipSet[1]) << 16 | Long.parseLong(ipSet[2]) << 8 | Long.parseLong(ipSet[3]);
}
/**
* long to ip
* @param ipLong the long number converted from IP
* @return String
*/
public static String longToIp(long ipLong) {
long[] ipNumbers = new long[4];
long tmp = 0xFF;
ipNumbers[0] = ipLong >> 24 & tmp;
ipNumbers[1] = ipLong >> 16 & tmp;
ipNumbers[2] = ipLong >> 8 & tmp;
ipNumbers[3] = ipLong & tmp;
StringBuilder sb = new StringBuilder(16);
sb.append(ipNumbers[0]).append(DOT)
.append(ipNumbers[1]).append(DOT)
.append(ipNumbers[2]).append(DOT)
.append(ipNumbers[3]);
return sb.toString();
}
public static void main(String[] args){
long ipLong = ipToLong("11.3.4.5");
logger.info(longToIp(ipLong));
}
}