Method getLabelValues

netty/src/main/java/io/grpc/netty/TcpMetrics.java:197–226

(Channel channel)

  }

  private static List<String> getLabelValues(Channel channel) {
    String localAddress = "";
    String localPort = "";
    String peerAddress = "";
    String peerPort = "";

    SocketAddress local = channel.localAddress();
    if (local instanceof InetSocketAddress) {
      InetSocketAddress inetLocal = (InetSocketAddress) local;
      if (inetLocal.getAddress() != null) {
        localAddress = inetLocal.getAddress().getHostAddress();
      } else if (inetLocal.getHostString() != null) {
        localAddress = inetLocal.getHostString();
      }
      localPort = String.valueOf(inetLocal.getPort());
    }

    SocketAddress remote = channel.remoteAddress();
    if (remote instanceof InetSocketAddress) {
      InetSocketAddress inetRemote = (InetSocketAddress) remote;
      if (inetRemote.getAddress() != null) {
        peerAddress = inetRemote.getAddress().getHostAddress();
      } else if (inetRemote.getHostString() != null) {
        peerAddress = inetRemote.getHostString();
      }
      peerPort = String.valueOf(inetRemote.getPort());
    }

    return Arrays.asList(localAddress, localPort, peerAddress, peerPort);
  }
}