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

Example 16 with ConnectException

use of java.net.ConnectException in project hbase by apache.

the class TestMetaTableLocator method testVerifyMetaRegionLocationFails.

/**
   * Test get of meta region fails properly if nothing to connect to.
   * @throws IOException
   * @throws InterruptedException
   * @throws KeeperException
   * @throws ServiceException
   */
@Test
public void testVerifyMetaRegionLocationFails() throws IOException, InterruptedException, KeeperException, ServiceException {
    ClusterConnection connection = Mockito.mock(ClusterConnection.class);
    ServiceException connectException = new ServiceException(new ConnectException("Connection refused"));
    final AdminProtos.AdminService.BlockingInterface implementation = Mockito.mock(AdminProtos.AdminService.BlockingInterface.class);
    Mockito.when(implementation.getRegionInfo((RpcController) Mockito.any(), (GetRegionInfoRequest) Mockito.any())).thenThrow(connectException);
    Mockito.when(connection.getAdmin(Mockito.any(ServerName.class))).thenReturn(implementation);
    RpcControllerFactory controllerFactory = Mockito.mock(RpcControllerFactory.class);
    Mockito.when(controllerFactory.newController()).thenReturn(Mockito.mock(HBaseRpcController.class));
    Mockito.when(connection.getRpcControllerFactory()).thenReturn(controllerFactory);
    ServerName sn = ServerName.valueOf("example.com", 1234, System.currentTimeMillis());
    MetaTableLocator.setMetaLocation(this.watcher, sn, RegionState.State.OPENING);
    assertFalse(new MetaTableLocator().verifyMetaRegionLocation(connection, watcher, 100));
    MetaTableLocator.setMetaLocation(this.watcher, sn, RegionState.State.OPEN);
    assertFalse(new MetaTableLocator().verifyMetaRegionLocation(connection, watcher, 100));
}

Example 17 with ConnectException

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

the class KvStateClientTest method testRequestUnavailableHost.

/**
	 * Tests that a request to an unavailable host is failed with ConnectException.
	 */
@Test
public void testRequestUnavailableHost() throws Exception {
    Deadline deadline = TEST_TIMEOUT.fromNow();
    AtomicKvStateRequestStats stats = new AtomicKvStateRequestStats();
    KvStateClient client = null;
    try {
        client = new KvStateClient(1, stats);
        int availablePort = NetUtils.getAvailablePort();
        KvStateServerAddress serverAddress = new KvStateServerAddress(InetAddress.getLocalHost(), availablePort);
        Future<byte[]> future = client.getKvState(serverAddress, new KvStateID(), new byte[0]);
        try {
            Await.result(future, deadline.timeLeft());
            fail("Did not throw expected ConnectException");
        } catch (ConnectException ignored) {
        // Expected
        }
    } finally {
        if (client != null) {
            client.shutDown();
        }
        assertEquals("Channel leak", 0, stats.getNumConnections());
    }
}

Example 18 with ConnectException

use of java.net.ConnectException in project screenbird by adamhub.

the class ClientIPC method connect.

/**
     * Connects to SocketServer using the SOCKET_NAME and SOCK_PORT
     * @return True if client is successful in connecting, false otherwise
     */
public boolean connect() {
    try {
        log("Connecting to Base Server...");
        this.client = new Socket(ServerIPC.SOCKET_NAME, ServerIPC.SOCKET_PORT);
        log("Connected to Base Server");
        log("Client Initiated...");
        return true;
    } catch (ConnectException e) {
        log(e);
    } catch (UnknownHostException e) {
        log("Could not connect to " + ServerIPC.SOCKET_NAME + ":" + ServerIPC.SOCKET_PORT);
    } catch (IOException e) {
        log("Could not connect to " + ServerIPC.SOCKET_NAME + ":" + ServerIPC.SOCKET_PORT);
        log(e);
    } catch (NullPointerException e) {
        log(e);
    }
    return false;
}

Example 19 with ConnectException

use of java.net.ConnectException in project screenbird by adamhub.

the class Client method connectToBaseServer.

private boolean connectToBaseServer() {
    try {
        System.out.println("Connecting to Base Server...");
        this.client = new Socket(SOCKET_NAME, SOCKET_PORT);
        ipcManager.setIsRunning(true);
        System.out.println("Connected to Base Server");
        System.out.println("Client Initiated...");
    } catch (ConnectException e) {
        e.printStackTrace(System.err);
        System.exit(-1);
    } catch (UnknownHostException e) {
        System.err.println("Could not connect to " + SOCKET_NAME + ":" + SOCKET_PORT);
        e.printStackTrace(System.err);
    } catch (IOException e) {
        System.err.println("Could not connect to " + SOCKET_NAME + ":" + SOCKET_PORT);
        e.printStackTrace(System.err);
    } catch (NullPointerException e) {
        e.printStackTrace(System.err);
    }
    return false;
}

Example 20 with ConnectException

use of java.net.ConnectException in project openhab1-addons by openhab.

the class EBusTCPConnector method connect.

/*
     * (non-Javadoc)
     * 
     * @see org.openhab.binding.ebus.connection.AbstractEBusConnector#connect()
     */
@Override
protected boolean connect() throws IOException {
    try {
        socket = new Socket(hostname, port);
        socket.setSoTimeout(20000);
        socket.setKeepAlive(true);
        socket.setTcpNoDelay(true);
        socket.setTrafficClass((byte) 0x10);
        // Useful? We try it
        // socket.setReceiveBufferSize(1);
        socket.setSendBufferSize(1);
        inputStream = socket.getInputStream();
        outputStream = socket.getOutputStream();
        return super.connect();
    } catch (ConnectException e) {
        logger.error(e.toString());
    } catch (Exception e) {
        logger.error(e.toString(), e);
    }
    return false;
}