Examples with InetAddress java.net.InetAddress used on opensource projects

Example 11 with InetAddress

use of java.net.InetAddress in project flink by apache.

the class IPv6HostnamesITCase method getLocalIPv6Address.

private Inet6Address getLocalIPv6Address() {
    try {
        Enumeration<NetworkInterface> e = NetworkInterface.getNetworkInterfaces();
        while (e.hasMoreElements()) {
            NetworkInterface netInterface = e.nextElement();
            // for each address of the network interface
            Enumeration<InetAddress> ee = netInterface.getInetAddresses();
            while (ee.hasMoreElements()) {
                InetAddress addr = ee.nextElement();
                if (addr instanceof Inet6Address && (!addr.isLoopbackAddress()) && (!addr.isAnyLocalAddress())) {
                    // see if it is possible to bind to the address
                    InetSocketAddress socketAddress = new InetSocketAddress(addr, 0);
                    try {
                        log.info("Considering address " + addr);
                        // test whether we can bind a socket to that address
                        log.info("Testing whether sockets can bind to " + addr);
                        ServerSocket sock = new ServerSocket();
                        sock.bind(socketAddress);
                        sock.close();
                        // test whether Akka's netty can bind to the address
                        log.info("Testing whether Akka can use " + addr);
                        int port = NetUtils.getAvailablePort();
                        ActorSystem as = AkkaUtils.createActorSystem(new Configuration(), new Some<scala.Tuple2<String, Object>>(new scala.Tuple2<String, Object>(addr.getHostAddress(), port)));
                        as.shutdown();
                        log.info("Using address " + addr);
                        return (Inet6Address) addr;
                    } catch (IOException ignored) {
                    // fall through the loop
                    }
                }
            }
        }
        return null;
    } catch (Exception e) {
        return null;
    }
}

Example 12 with InetAddress

use of java.net.InetAddress in project flink by apache.

the class TaskManagerLocationTest method testGetHostname0.

@Test
public void testGetHostname0() {
    try {
        InetAddress address = mock(InetAddress.class);
        when(address.getCanonicalHostName()).thenReturn("worker2.cluster.mycompany.com");
        when(address.getHostName()).thenReturn("worker2.cluster.mycompany.com");
        when(address.getHostAddress()).thenReturn("127.0.0.1");
        final TaskManagerLocation info = new TaskManagerLocation(ResourceID.generate(), address, 19871);
        Assert.assertEquals("worker2", info.getHostname());
    } catch (Exception e) {
        e.printStackTrace();
        fail(e.getMessage());
    }
}

Example 13 with InetAddress

use of java.net.InetAddress in project flink by apache.

the class TaskManagerLocationTest method testGetHostname2.

@Test
public void testGetHostname2() {
    try {
        final String addressString = "192.168.254.254";
        // we mock the addresses to save the times of the reverse name lookups
        InetAddress address = mock(InetAddress.class);
        when(address.getCanonicalHostName()).thenReturn("192.168.254.254");
        when(address.getHostName()).thenReturn("192.168.254.254");
        when(address.getHostAddress()).thenReturn("192.168.254.254");
        when(address.getAddress()).thenReturn(new byte[] { (byte) 192, (byte) 168, (byte) 254, (byte) 254 });
        TaskManagerLocation info = new TaskManagerLocation(ResourceID.generate(), address, 54152);
        assertNotNull(info.getFQDNHostname());
        assertTrue(info.getFQDNHostname().equals(addressString));
        assertNotNull(info.getHostname());
        assertTrue(info.getHostname().equals(addressString));
    } catch (Exception e) {
        e.printStackTrace();
        fail(e.getMessage());
    }
}

Example 14 with InetAddress

use of java.net.InetAddress in project flink by apache.

the class TaskManagerStartupTest method testStartupWhenTaskmanagerActorPortIsUsed.

/**
	 * Tests that the TaskManager fails synchronously when the actor system port
	 * is in use.
	 * 
	 * @throws Throwable
	 */
@Test(expected = BindException.class)
public void testStartupWhenTaskmanagerActorPortIsUsed() throws BindException {
    ServerSocket blocker = null;
    try {
        final String localHostName = "localhost";
        final InetAddress localBindAddress = InetAddress.getByName(NetUtils.getWildcardIPAddress());
        // block some port
        blocker = new ServerSocket(0, 50, localBindAddress);
        final int port = blocker.getLocalPort();
        TaskManager.runTaskManager(localHostName, ResourceID.generate(), port, new Configuration(), TaskManager.class);
        fail("This should fail with an IOException");
    } catch (IOException e) {
        // expected. validate the error message
        List<Throwable> causes = StartupUtils.getExceptionCauses(e, new ArrayList<Throwable>());
        for (Throwable cause : causes) {
            if (cause instanceof BindException) {
                throw (BindException) cause;
            }
        }
        fail("This should fail with an exception caused by BindException");
    } catch (Exception e) {
        e.printStackTrace();
        fail(e.getMessage());
    } finally {
        if (blocker != null) {
            try {
                blocker.close();
            } catch (IOException e) {
            // no need to log here
            }
        }
    }
}

Example 15 with InetAddress

use of java.net.InetAddress in project flink by apache.

the class TaskManagerLocationTest method testGetHostname1.

@Test
public void testGetHostname1() {
    try {
        InetAddress address = mock(InetAddress.class);
        when(address.getCanonicalHostName()).thenReturn("worker10");
        when(address.getHostName()).thenReturn("worker10");
        when(address.getHostAddress()).thenReturn("127.0.0.1");
        TaskManagerLocation info = new TaskManagerLocation(ResourceID.generate(), address, 19871);
        Assert.assertEquals("worker10", info.getHostname());
    } catch (Exception e) {
        e.printStackTrace();
        fail(e.getMessage());
    }
}