org.fisco.bcos.sdk.utils.Host Maven / Gradle / Ivy
/*
* Copyright 2014-2020 [fisco-dev]
*
* 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 org.fisco.bcos.sdk.utils;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/** Verify host and port, and extract host or port from string. */
public class Host {
/**
* @param IP the IP string of host
* @return true if IP valid IP string otherwise false
*/
public static boolean validIP(String IP) {
String regex = "\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}";
Pattern pattern = Pattern.compile(regex);
Matcher matcher = pattern.matcher(IP);
return matcher.matches();
}
/**
* @param port the port string
* @return true if port valid IP port otherwise false
*/
public static boolean validPort(String port) {
try {
Integer p = Integer.parseInt(port);
return p > 0 && p <= 65535;
} catch (Exception e) {
return false;
}
}
/**
* Get ip from IPAndPort string
*
* @param IPAndPort the combine of IP and port string
* @return String of IP address
*/
public static String getIpFromString(String IPAndPort) {
int index = IPAndPort.lastIndexOf(':');
String IP = IPAndPort.substring(0, index);
return IP;
}
/**
* Get port from IPAndPort string
*
* @param IPAndPort the combine of IP and port string
* @return String of port.
*/
public static String getPortFromString(String IPAndPort) {
int index = IPAndPort.lastIndexOf(':');
String port = IPAndPort.substring(index + 1);
return port;
}
}