com.redismq.rebalance.ClientConfig Maven / Gradle / Ivy
package com.redismq.rebalance;
import java.io.File;
import java.net.Inet6Address;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.ArrayList;
import java.util.Enumeration;
/**
* @Author: hzh
* @Date: 2022/4/27 17:12
* 获取客户端id的方法
*/
public class ClientConfig {
private static boolean isLinuxPlatform = false;
private static boolean isWindowsPlatform = false;
public static final String OS_NAME = System.getProperty("os.name");
static {
if (OS_NAME != null && OS_NAME.toLowerCase().contains("linux")) {
isLinuxPlatform = true;
}
if (OS_NAME != null && OS_NAME.toLowerCase().contains("windows")) {
isWindowsPlatform = true;
}
}
public static String getLocalAddress() {
try {
// Traversal Network interface to get the first non-loopback and non-private address
Enumeration enumeration = NetworkInterface.getNetworkInterfaces();
ArrayList ipv4Result = new ArrayList();
ArrayList ipv6Result = new ArrayList();
while (enumeration.hasMoreElements()) {
final NetworkInterface networkInterface = enumeration.nextElement();
if (isBridge(networkInterface)) {
continue;
}
final Enumeration en = networkInterface.getInetAddresses();
while (en.hasMoreElements()) {
final InetAddress address = en.nextElement();
if (!address.isLoopbackAddress()) {
if (address instanceof Inet6Address) {
ipv6Result.add(normalizeHostAddress(address));
} else {
ipv4Result.add(normalizeHostAddress(address));
}
}
}
}
// prefer ipv4
if (!ipv4Result.isEmpty()) {
for (String ip : ipv4Result) {
if (ip.startsWith("127.0") || ip.startsWith("192.168")) {
continue;
}
return ip;
}
return ipv4Result.get(ipv4Result.size() - 1);
} else if (!ipv6Result.isEmpty()) {
return ipv6Result.get(0);
}
//If failed to find,fall back to localhost
final InetAddress localHost = InetAddress.getLocalHost();
return normalizeHostAddress(localHost);
} catch (Exception e) {
}
return null;
}
private static boolean isBridge(NetworkInterface networkInterface) {
try {
if (isLinuxPlatform) {
String interfaceName = networkInterface.getName();
File file = new File("/sys/class/net/" + interfaceName + "/bridge");
return file.exists();
}
} catch (SecurityException e) {
//Ignore
}
return false;
}
public static String normalizeHostAddress(final InetAddress localHost) {
if (localHost instanceof Inet6Address) {
return "[" + localHost.getHostAddress() + "]";
} else {
return localHost.getHostAddress();
}
}
}