net.yadaframework.raw.YadaNetworkUtil Maven / Gradle / Ivy
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Some useful tasks for the Yada Framework
package net.yadaframework.raw;
import java.io.IOException;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class YadaNetworkUtil {
@SuppressWarnings("unused")
private final transient Logger log = LoggerFactory.getLogger(getClass());
/**
* Find all ipv4 and ipv6 addresses on the local host that can be used for sending packets to the internet
* @return
* @throws IOException
*/
public List findPublicAddresses() throws IOException {
List result = new ArrayList();
Enumeration networkInterfaces = NetworkInterface.getNetworkInterfaces();
while (networkInterfaces.hasMoreElements()) {
NetworkInterface networkInterface = networkInterfaces.nextElement();
if (!networkInterface.isLoopback() && networkInterface.isUp()) {
Enumeration inetAddresses = networkInterface.getInetAddresses();
while (inetAddresses.hasMoreElements()) {
InetAddress inetAddress = inetAddresses.nextElement();
if (!inetAddress.isLinkLocalAddress()) {
result.add(inetAddress);
}
}
}
}
return result;
}
}