Examples with ServerSocketChannel java.nio.channels.ServerSocketChannel used on opensource projects

Example 76 with ServerSocketChannel

use of java.nio.channels.ServerSocketChannel in project hadoop by apache.

the class SecureDataNodeStarter method getSecureResources.

/**
   * Acquire privileged resources (i.e., the privileged ports) for the data
   * node. The privileged resources consist of the port of the RPC server and
   * the port of HTTP (not HTTPS) server.
   */
@VisibleForTesting
public static SecureResources getSecureResources(Configuration conf) throws Exception {
    HttpConfig.Policy policy = DFSUtil.getHttpPolicy(conf);
    boolean isSecure = UserGroupInformation.isSecurityEnabled();
    // Obtain secure port for data streaming to datanode
    InetSocketAddress streamingAddr = DataNode.getStreamingAddr(conf);
    int socketWriteTimeout = conf.getInt(DFSConfigKeys.DFS_DATANODE_SOCKET_WRITE_TIMEOUT_KEY, HdfsConstants.WRITE_TIMEOUT);
    int backlogLength = conf.getInt(CommonConfigurationKeysPublic.IPC_SERVER_LISTEN_QUEUE_SIZE_KEY, CommonConfigurationKeysPublic.IPC_SERVER_LISTEN_QUEUE_SIZE_DEFAULT);
    ServerSocket ss = (socketWriteTimeout > 0) ? ServerSocketChannel.open().socket() : new ServerSocket();
    ss.bind(streamingAddr, backlogLength);
    // Check that we got the port we need
    if (ss.getLocalPort() != streamingAddr.getPort()) {
        throw new RuntimeException("Unable to bind on specified streaming port in secure " + "context. Needed " + streamingAddr.getPort() + ", got " + ss.getLocalPort());
    }
    if (!SecurityUtil.isPrivilegedPort(ss.getLocalPort()) && isSecure) {
        throw new RuntimeException("Cannot start secure datanode with unprivileged RPC ports");
    }
    System.err.println("Opened streaming server at " + streamingAddr);
    // Bind a port for the web server. The code intends to bind HTTP server to
    // privileged port only, as the client can authenticate the server using
    // certificates if they are communicating through SSL.
    final ServerSocketChannel httpChannel;
    if (policy.isHttpEnabled()) {
        httpChannel = ServerSocketChannel.open();
        InetSocketAddress infoSocAddr = DataNode.getInfoAddr(conf);
        httpChannel.socket().bind(infoSocAddr);
        InetSocketAddress localAddr = (InetSocketAddress) httpChannel.socket().getLocalSocketAddress();
        if (localAddr.getPort() != infoSocAddr.getPort()) {
            throw new RuntimeException("Unable to bind on specified info port in secure " + "context. Needed " + streamingAddr.getPort() + ", got " + ss.getLocalPort());
        }
        System.err.println("Successfully obtained privileged resources (streaming port = " + ss + " ) (http listener port = " + localAddr.getPort() + ")");
        if (localAddr.getPort() > 1023 && isSecure) {
            throw new RuntimeException("Cannot start secure datanode with unprivileged HTTP ports");
        }
        System.err.println("Opened info server at " + infoSocAddr);
    } else {
        httpChannel = null;
    }
    return new SecureResources(ss, httpChannel);
}

Example 77 with ServerSocketChannel

use of java.nio.channels.ServerSocketChannel in project robovm by robovm.

the class ScannerTest method test_Constructor_LReadableByteChannel.

public void test_Constructor_LReadableByteChannel() throws IOException {
    ServerSocketChannel ssc = ServerSocketChannel.open();
    ssc.socket().bind(null);
    SocketChannel sc = SocketChannel.open();
    sc.connect(ssc.socket().getLocalSocketAddress());
    sc.configureBlocking(false);
    assertFalse(sc.isBlocking());
    ssc.accept().close();
    ssc.close();
    assertFalse(sc.isBlocking());
    Scanner s = new Scanner(sc);
    try {
        s.hasNextInt();
        fail();
    } catch (IllegalBlockingModeException expected) {
    }
    sc.close();
}

Example 78 with ServerSocketChannel

use of java.nio.channels.ServerSocketChannel in project robovm by robovm.

the class AbstractSelectorTest method test_register_LSelectorI_error.

/**
     * @tests AbstractSelector#register(Selector,int)
     */
public void test_register_LSelectorI_error() throws IOException {
    Selector acceptSelector = SelectorProvider.provider().openSelector();
    ServerSocketChannel ssc = ServerSocketChannel.open();
    ssc.configureBlocking(false);
    acceptSelector.close();
    assertFalse(acceptSelector.isOpen());
    try {
        ssc.register(acceptSelector, SelectionKey.OP_ACCEPT);
        fail("should throw NullPointerException");
    } catch (NullPointerException e) {
    // expected
    }
    assertFalse(ssc.isRegistered());
    acceptSelector = Selector.open();
    ssc.configureBlocking(true);
    try {
        ssc.register(acceptSelector, SelectionKey.OP_ACCEPT);
        fail("should throw IllegalBlockingModeException");
    } catch (IllegalBlockingModeException e) {
    // expected
    }
    assertFalse(ssc.isRegistered());
    ssc.configureBlocking(false);
    SelectionKey acceptKey = ssc.register(acceptSelector, SelectionKey.OP_ACCEPT);
    assertNotNull(acceptKey);
    assertTrue(acceptSelector.keys().contains(acceptKey));
    assertTrue(ssc.isRegistered());
}

Example 79 with ServerSocketChannel

use of java.nio.channels.ServerSocketChannel in project robovm by robovm.

the class SocketChannelTest method test_write$LByteBuffer2.

/**
     * @tests java.nio.channels.SocketChannel#write(ByteBuffer[])
     */
public void test_write$LByteBuffer2() throws IOException {
    // Set-up
    ServerSocketChannel server = ServerSocketChannel.open();
    server.socket().bind(null);
    SocketChannel client = SocketChannel.open();
    client.connect(server.socket().getLocalSocketAddress());
    SocketChannel worker = server.accept();
    // Test overlapping buffers
    byte[] data = "Hello world!".getBytes("UTF-8");
    ByteBuffer[] buffers = new ByteBuffer[3];
    buffers[0] = ByteBuffer.wrap(data, 0, 6);
    buffers[1] = ByteBuffer.wrap(data, 6, data.length - 6);
    buffers[2] = ByteBuffer.wrap(data);
    // Write them out, read what we wrote and check it
    client.write(buffers);
    client.close();
    ByteBuffer readBuffer = ByteBuffer.allocate(1024);
    while (EOF != worker.read(readBuffer)) {
    }
    ;
    readBuffer.flip();
    Buffer expected = ByteBuffer.allocate(1024).put(data).put(data).flip();
    assertEquals(expected, readBuffer);
    // Tidy-up
    worker.close();
    server.close();
}

Example 80 with ServerSocketChannel

use of java.nio.channels.ServerSocketChannel in project robovm by robovm.

the class SocketChannelTest method test_socketChannel_write_close.

/**
     * @tests SocketChannel#write(ByteBuffer) after close
     */
public void test_socketChannel_write_close() throws Exception {
    // regression 4 for HARMONY-549
    ServerSocketChannel ssc = ServerSocketChannel.open();
    ssc.socket().bind(localAddr2);
    SocketChannel sc = SocketChannel.open();
    sc.connect(localAddr2);
    SocketChannel sock = ssc.accept();
    ByteBuffer buf = null;
    ssc.close();
    sc.close();
    try {
        sc.write(buf);
        fail("should throw NPE");
    } catch (NullPointerException e) {
    // expected
    }
    sock.close();
}