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Unix Domain Sockets and Named Pipes for the JVM on Linux, macOS, and Windows

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package de.gesellix.docker.client.filesocket;

import okhttp3.Dns;

import javax.net.SocketFactory;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.Collections;
import java.util.List;

public abstract class FileSocketFactory extends SocketFactory implements Dns {

  @Override
  public List lookup(String hostname) throws UnknownHostException {
    if (hostname.endsWith(FileSocket.SOCKET_MARKER)) {
      return Collections.singletonList(InetAddress.getByAddress(hostname, new byte[] {0, 0, 0, 0}));
    }
    else {
      return Dns.SYSTEM.lookup(hostname);
    }
  }

  @Override
  public Socket createSocket(String s, int i) {
    throw new UnsupportedOperationException();
  }

  @Override
  public Socket createSocket(String s, int i, InetAddress inetAddress, int i1) {
    throw new UnsupportedOperationException();
  }

  @Override
  public Socket createSocket(InetAddress inetAddress, int i) {
    throw new UnsupportedOperationException();
  }

  @Override
  public Socket createSocket(InetAddress inetAddress, int i, InetAddress inetAddress1, int i1) {
    throw new UnsupportedOperationException();
  }
}