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

Example 56 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 57 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 58 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 59 with ConnectException

use of java.net.ConnectException in project sonarqube by SonarSource.

the class EmbeddedTomcatTest method start.

@Test
public void start() throws Exception {
    Props props = new Props(new Properties());
    // prepare file system
    File home = temp.newFolder();
    File data = temp.newFolder();
    File webDir = new File(home, "web");
    FileUtils.write(new File(home, "web/WEB-INF/web.xml"), "<web-app/>");
    props.set("sonar.path.home", home.getAbsolutePath());
    props.set("sonar.path.data", data.getAbsolutePath());
    props.set("sonar.path.web", webDir.getAbsolutePath());
    props.set("sonar.path.logs", temp.newFolder().getAbsolutePath());
    // start server on a random port
    int httpPort = NetworkUtils.freePort();
    int ajpPort = NetworkUtils.freePort();
    props.set("sonar.web.port", String.valueOf(httpPort));
    props.set("sonar.ajp.port", String.valueOf(ajpPort));
    EmbeddedTomcat tomcat = new EmbeddedTomcat(props);
    assertThat(tomcat.getStatus()).isEqualTo(EmbeddedTomcat.Status.DOWN);
    tomcat.start();
    assertThat(tomcat.getStatus()).isEqualTo(EmbeddedTomcat.Status.UP);
    // check that http connector accepts requests
    URL url = new URL("http://" + Inet4Address.getLocalHost().getHostAddress() + ":" + httpPort);
    url.openConnection().connect();
    // stop server
    tomcat.terminate();
    // tomcat.isUp() must not be called. It is used to wait for server startup, not shutdown.
    try {
        url.openConnection().connect();
        fail();
    } catch (ConnectException e) {
    // expected
    }
}

Example 60 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;
}