| /* |
| * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.net.ServerSocket; |
| import java.net.InetAddress; |
| import java.net.Socket; |
| import java.net.SocketAddress; |
| import java.nio.file.Paths; |
| import java.util.ArrayList; |
| import java.util.List; |
| import jdk.jfr.Recording; |
| import jdk.jfr.consumer.RecordedEvent; |
| import jdk.jfr.consumer.RecordingFile; |
| import jdk.test.lib.process.OutputAnalyzer; |
| |
| |
| // This class is intended to run inside a container |
| public class JfrNetwork { |
| // use a unique hostname for container |
| public static final String HOST_NAME = "container-unique-8221711"; |
| public static final String JFR_REPORTED_CONTAINER_HOSTNAME_TAG = "jfr_reported_container_hostname="; |
| |
| public static void main(String[] args) throws Exception { |
| String event = args[0]; |
| try (ServerSocket ss = new ServerSocket()) { |
| testNetworkInfo(ss, event); |
| } |
| } |
| |
| private static void assertTrue(boolean expr, String msg) { |
| if (!expr) { |
| throw new RuntimeException(msg); |
| } |
| } |
| |
| private static void testNetworkInfo(ServerSocket ss, String event) throws Exception { |
| ServerSocketListener server = new ServerSocketListener(ss); |
| server.start(); |
| SocketWriter writer = new SocketWriter(ss.getLocalSocketAddress()); |
| |
| // setup and start the recording |
| String recordingPath = event + ".jfr"; |
| log("========= Recording event: " + event); |
| Recording r = new Recording(); |
| r.enable(event); |
| r.setDestination(Paths.get("/", "tmp", recordingPath)); |
| r.start(); |
| |
| // start the socker writer thread, write some data into the socket |
| writer.start(); |
| |
| // wait for writer thread to terminate, then for server thread, then stop recording |
| writer.joinAndThrow(); |
| server.joinAndThrow(); |
| r.stop(); |
| |
| // analyze the recording |
| List<RecordedEvent> events = RecordingFile.readAllEvents(r.getDestination()); |
| events.forEach(e -> log ("event = " + e)); |
| assertTrue(!events.isEmpty(), "No recorded network events"); |
| RecordedEvent e = events.get(0); |
| log(JFR_REPORTED_CONTAINER_HOSTNAME_TAG + e.getString("host")); |
| |
| // compare IP addresses |
| boolean matchFound = false; |
| InetAddress reportedByJfr = InetAddress.getByName(e.getString("address")); |
| for (InetAddress ip : getLocalIp()) { |
| if (ip.equals(reportedByJfr)) { |
| matchFound = true; |
| break; |
| } |
| } |
| assertTrue(matchFound, "IP address match not found"); |
| } |
| |
| private static List<InetAddress> getLocalIp() throws Exception { |
| List<InetAddress> addrs = new ArrayList<>(); |
| InetAddress localHost = InetAddress.getLocalHost(); |
| if (!localHost.isLoopbackAddress()) { |
| addrs.add(localHost); |
| } |
| |
| log("getLocalIp() returning:"); |
| for (InetAddress addr : addrs) { |
| log(addr.getHostName()); |
| log(addr.getHostAddress()); |
| } |
| |
| return addrs; |
| } |
| |
| private static void log(String msg) { |
| System.out.println(msg); |
| } |
| |
| |
| private static class ServerSocketListener extends Thread { |
| Exception exception; |
| ServerSocket ss; |
| |
| ServerSocketListener(ServerSocket socket) throws Exception { |
| ss = socket; |
| ss.setReuseAddress(true); |
| ss.bind(null); |
| log("ServerSocker Local Address: " + ss.getLocalSocketAddress()); |
| } |
| |
| public void joinAndThrow() throws Exception { |
| join(); |
| if (exception != null) { |
| throw exception; |
| } |
| } |
| |
| public void run() { |
| try { |
| try (Socket s = ss.accept(); InputStream is = s.getInputStream()) { |
| System.out.println("ServerSocketListener: accepted socket connection: s = " + s); |
| is.read(); |
| is.read(); |
| is.read(); |
| } |
| } catch (Exception e) { |
| exception = e; |
| } |
| } |
| } |
| |
| |
| private static class SocketWriter extends Thread { |
| Exception exception; |
| private SocketAddress ssAddr; |
| |
| public SocketWriter(SocketAddress sa) { |
| this.ssAddr = sa; |
| System.out.println("SocketWriter(): sa = " + sa); |
| } |
| |
| public void joinAndThrow() throws Exception { |
| join(); |
| if (exception != null) { |
| throw exception; |
| } |
| } |
| |
| public void run() { |
| try (Socket s = new Socket()) { |
| s.connect(ssAddr); |
| try (OutputStream os = s.getOutputStream()) { |
| os.write('A'); |
| os.write('B'); |
| os.write('C'); |
| } |
| } catch (Exception e) { |
| exception = e; |
| } |
| } |
| } |
| |
| } |