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

Example 26 with UnknownHostException

use of java.net.UnknownHostException in project sharding-jdbc by dangdangdotcom.

the class IPIdGenerator method initWorkerId.

static void initWorkerId() {
    InetAddress address;
    try {
        address = InetAddress.getLocalHost();
    } catch (final UnknownHostException e) {
        throw new IllegalStateException("Cannot get LocalHost InetAddress, please check your network!");
    }
    byte[] ipAddressByteArray = address.getAddress();
    CommonSelfIdGenerator.setWorkerId((long) (((ipAddressByteArray[ipAddressByteArray.length - 2] & 0B11) << Byte.SIZE) + (ipAddressByteArray[ipAddressByteArray.length - 1] & 0xFF)));
}

Example 27 with UnknownHostException

use of java.net.UnknownHostException in project sharding-jdbc by dangdangdotcom.

the class HostNameIdGeneratorTest method testUnknownHost.

@Test
public void testUnknownHost() throws UnknownHostException {
    PowerMockito.mockStatic(InetAddress.class);
    PowerMockito.when(InetAddress.getLocalHost()).thenThrow(new UnknownHostException());
    exception.expect(IllegalStateException.class);
    exception.expectMessage("Cannot get LocalHost InetAddress, please check your network!");
    HostNameIdGenerator.initWorkerId();
}

Example 28 with UnknownHostException

use of java.net.UnknownHostException in project sharding-jdbc by dangdangdotcom.

the class IPIdGeneratorTest method testUnknownHost.

@Test
public void testUnknownHost() throws UnknownHostException {
    PowerMockito.mockStatic(InetAddress.class);
    PowerMockito.when(InetAddress.getLocalHost()).thenThrow(new UnknownHostException());
    exception.expect(IllegalStateException.class);
    exception.expectMessage("Cannot get LocalHost InetAddress, please check your network!");
    IPIdGenerator.initWorkerId();
}

Example 29 with UnknownHostException

use of java.net.UnknownHostException in project che by eclipse.

the class JavaDebugger method connect.

/**
     * Attach to a JVM that is already running at specified host.
     *
     * @throws DebuggerException
     *         when connection to Java VM is not established
     */
private void connect() throws DebuggerException {
    final String connectorName = "com.sun.jdi.SocketAttach";
    AttachingConnector connector = connector(connectorName);
    if (connector == null) {
        throw new DebuggerException(String.format("Unable connect to target Java VM. Requested connector '%s' not found. ", connectorName));
    }
    Map<String, Connector.Argument> arguments = connector.defaultArguments();
    arguments.get("hostname").setValue(host);
    ((Connector.IntegerArgument) arguments.get("port")).setValue(port);
    int attempt = 0;
    for (; ; ) {
        try {
            Thread.sleep(2000);
            vm = connector.attach(arguments);
            vm.suspend();
            break;
        } catch (UnknownHostException | IllegalConnectorArgumentsException e) {
            throw new DebuggerException(e.getMessage(), e);
        } catch (IOException e) {
            LOG.error(e.getMessage(), e);
            if (++attempt > 10) {
                throw new DebuggerException(e.getMessage(), e);
            }
            try {
                Thread.sleep(2000);
            } catch (InterruptedException ignored) {
            }
        } catch (InterruptedException ignored) {
        }
    }
    eventsCollector = new EventsCollector(vm.eventQueue(), this);
    LOG.debug("Connect {}:{}", host, port);
}

Example 30 with UnknownHostException

use of java.net.UnknownHostException in project vert.x by eclipse.

the class HostnameResolutionTest method testMultipleSearchDomain.

@Test
public void testMultipleSearchDomain() throws Exception {
    Map<String, String> records = new HashMap<>();
    records.put("host1.foo.com", "127.0.0.1");
    records.put("host2.bar.com", "127.0.0.2");
    records.put("host3.bar.com", "127.0.0.3");
    records.put("host3.foo.com", "127.0.0.4");
    dnsServer.stop();
    dnsServer = FakeDNSServer.testResolveA(records);
    dnsServer.start();
    VertxInternal vertx = (VertxInternal) vertx(new VertxOptions().setAddressResolverOptions(new AddressResolverOptions().addServer(dnsServerAddress.getAddress().getHostAddress() + ":" + dnsServerAddress.getPort()).setOptResourceEnabled(false).addSearchDomain("foo.com").addSearchDomain("bar.com")));
    // "host1" resolves via the "foo.com" search path
    CountDownLatch latch1 = new CountDownLatch(1);
    vertx.resolveAddress("host1", onSuccess(resolved -> {
        assertEquals("127.0.0.1", resolved.getHostAddress());
        latch1.countDown();
    }));
    awaitLatch(latch1);
    // "host2" resolves via the "bar.com" search path
    CountDownLatch latch2 = new CountDownLatch(1);
    vertx.resolveAddress("host2", onSuccess(resolved -> {
        assertEquals("127.0.0.2", resolved.getHostAddress());
        latch2.countDown();
    }));
    awaitLatch(latch2);
    // "host3" resolves via the the "foo.com" search path as it is the first one
    CountDownLatch latch3 = new CountDownLatch(1);
    vertx.resolveAddress("host3", onSuccess(resolved -> {
        assertEquals("127.0.0.4", resolved.getHostAddress());
        latch3.countDown();
    }));
    awaitLatch(latch3);
    // "host4" does not resolve
    vertx.resolveAddress("host4", onFailure(cause -> {
        assertTrue(cause instanceof UnknownHostException);
        testComplete();
    }));
    await();
}