List of usage examples for java.nio.channels ServerSocketChannel socket
public abstract ServerSocket socket();
From source file:org.commoncrawl.io.internal.NIOServerTCPSocket.java
private static void setListenerSocketOptions(ServerSocketChannel channel) throws IOException { channel.socket().setReuseAddress(true); channel.configureBlocking(false);//from w ww .j a va 2s . c om }
From source file:org.jnode.net.NServerSocket.java
private CompletableFuture<ServerSocketChannel> createServerChannel(int port) { CompletableFuture cf = new CompletableFuture<>(); try {/*from www . j av a2 s .co m*/ ServerSocketChannel ssc = ServerSocketChannel.open(); ssc.configureBlocking(false); ssc.socket().bind(new InetSocketAddress(port)); cf.complete(ssc); } catch (Exception e) { cf.completeExceptionally(e); } return cf; }
From source file:org.pvalsecc.comm.MultiplexedServer.java
/** * Attempt to create the listening socket for at most 5 minutes. *///from w w w. j a v a 2 s.c o m private void createSocket() { while (!stop) { ServerSocketChannel serverSocketChannel = null; try { synchronized (selectorLOCK) { if (!stop) { selector = Selector.open(); } } if (!stop) { serverSocketChannel = ServerSocketChannel.open(); //serverSocketChannel.socket().setReuseAddress(true); serverSocketChannel.configureBlocking(false); serverSocketChannel.socket().bind(address); serverSocketChannel.register(selector, SelectionKey.OP_ACCEPT); LOGGER.info("[" + threadName + "] Start to listen on " + address); } break; } catch (IOException e) { //noinspection StringContatenationInLoop LOGGER.warn("Cannot start to listen on " + threadName + " (will try again later)", e); SystemUtilities.safeClose(serverSocketChannel); try { Thread.sleep(5000); } catch (InterruptedException ignored) { //ignored } } } }
From source file:org.quickserver.net.server.QuickServer.java
/** * Starts server in non-blocking mode./*from w w w. jav a2 s. c o m*/ * @since 1.4.5 */ private void runNonBlocking(TheClient theClient) throws Exception { int selectCount = 0; Iterator iterator = null; SelectionKey key = null; ServerSocketChannel serverChannel = null; SocketChannel socketChannel = null; Socket client = null; ClientHandler _chPolled = null; boolean stopServerProcessed = false; int linger = getBasicConfig().getAdvancedSettings().getSocketLinger(); registerChannelRequestMap = new HashMap(); int socketTrafficClass = 0; if (getBasicConfig().getAdvancedSettings().getClientSocketTrafficClass() != null) { socketTrafficClass = Integer .parseInt(getBasicConfig().getAdvancedSettings().getClientSocketTrafficClass()); } while (true) { selectCount = selector.select(500); //selectCount = selector.select();//for testing //check for any pending registerChannel req. synchronized (registerChannelRequestMap) { if (registerChannelRequestMap.size() > 0) { RegisterChannelRequest req = null; Object hashkey = null; iterator = registerChannelRequestMap.keySet().iterator(); while (iterator.hasNext()) { hashkey = iterator.next(); req = (RegisterChannelRequest) registerChannelRequestMap.get(hashkey); req.register(getSelector()); } iterator = null; registerChannelRequestMap.clear(); } //if } //sync if (stopServer == true && stopServerProcessed == false) { logger.warning("Closing " + getName()); serverSocketChannel.close(); stopServerProcessed = true; server = null; serverSocketChannel = null; setServiceState(Service.STOPPED); logger.warning("Closed " + getName()); processServerHooks(ServerHook.POST_SHUTDOWN); } if (stopServer == false && stopServerProcessed == true) { logger.finest("Server must have re-started.. will break"); break; } if (selectCount == 0 && stopServerProcessed == true) { java.util.Set keyset = selector.keys(); if (keyset.isEmpty() == true && getClientCount() <= 0) { break; } else { continue; } } else if (selectCount == 0) { continue; } iterator = selector.selectedKeys().iterator(); while (iterator.hasNext()) { key = (SelectionKey) iterator.next(); if (key.isValid() == false) { iterator.remove(); continue; } if (key.isAcceptable() && stopServer == false) { logger.finest("Key is Acceptable"); serverChannel = (ServerSocketChannel) key.channel(); socketChannel = serverChannel.accept(); if (socketChannel == null) { iterator.remove(); continue; } client = socketChannel.socket(); if (linger < 0) { client.setSoLinger(false, 0); } else { client.setSoLinger(true, linger); } client.setTcpNoDelay(getBasicConfig().getAdvancedSettings().getClientSocketTcpNoDelay()); if (getBasicConfig().getAdvancedSettings().getClientSocketTrafficClass() != null) { client.setTrafficClass(socketTrafficClass);//low delay=10 } //logger.fine("ReceiveBufferSize: "+client.getReceiveBufferSize()); if (getBasicConfig().getAdvancedSettings().getClientSocketSendBufferSize() != 0) { client.setSendBufferSize( getBasicConfig().getAdvancedSettings().getClientSocketSendBufferSize()); //logger.fine("SendBufferSize: "+client.getSendBufferSize()); } if (checkAccessConstraint(client) == false) { iterator.remove(); continue; } socketChannel.configureBlocking(false); theClient.setTrusted(getSkipValidation()); theClient.setSocket(socketChannel.socket()); theClient.setSocketChannel(socketChannel); if (clientDataClass != null) { if (getClientDataPool() == null) { clientData = (ClientData) clientDataClass.newInstance(); } else { //borrow a object from pool clientData = (ClientData) getClientDataPool().borrowObject(); } theClient.setClientData(clientData); } //Check if max connection has reached if (getSkipValidation() != true && maxConnection != -1 && getClientHandlerPool().getNumActive() >= maxConnection) { theClient.setClientEvent(ClientEvent.MAX_CON); } else { theClient.setClientEvent(ClientEvent.ACCEPT); } try { _chPolled = (ClientHandler) getClientHandlerPool().borrowObject(); logger.finest("Asking " + _chPolled.getName() + " to handle."); _chPolled.handleClient(theClient); } catch (java.util.NoSuchElementException nsee) { logger.warning("Could not borrow ClientHandler Object from pool. Error: " + nsee); logger.warning("Closing SocketChannel [" + serverChannel.socket() + "] since no ClientHandler available."); socketChannel.close(); } if (_chPolled != null) { try { getClientPool().addClient(_chPolled, true); } catch (java.util.NoSuchElementException nsee) { logger.warning("Could not borrow Thread from pool. Error: " + nsee); //logger.warning("Closing SocketChannel ["+serverChannel.socket()+"] since no Thread available."); //socketChannel.close(); //returnClientHandlerToPool(_chPolled); } _chPolled = null; } socketChannel = null; client = null; setSkipValidation(false);//reset it back } else if (key.isValid() && key.isReadable()) { boolean addedEvent = false; ClientHandler _ch = null; try { _ch = (ClientHandler) key.attachment(); logger.finest("Key is Readable, removing OP_READ from interestOps for " + _ch.getName()); key.interestOps(key.interestOps() & (~SelectionKey.OP_READ)); _ch.addEvent(ClientEvent.READ); addedEvent = true; //_ch.setSelectionKey(key); getClientPool().addClient(_ch); } catch (CancelledKeyException cke) { logger.fine("Ignored Error - Key was Cancelled: " + cke); } catch (java.util.NoSuchElementException nsee) { logger.finest("NoSuchElementException: " + nsee); if (addedEvent) _ch.removeEvent(ClientEvent.READ); continue;//no need to remove the key } _ch = null; } else if (key.isValid() && key.isWritable()) { if (getClientPool().shouldNioWriteHappen() == false) { continue; //no need to remove the key } boolean addedEvent = false; ClientHandler _ch = null; try { _ch = (ClientHandler) key.attachment(); logger.finest("Key is Writable, removing OP_WRITE from interestOps for " + _ch.getName()); //remove OP_WRITE from interest set key.interestOps(key.interestOps() & (~SelectionKey.OP_WRITE)); _ch.addEvent(ClientEvent.WRITE); addedEvent = true; //_ch.setSelectionKey(key); getClientPool().addClient(_ch); } catch (CancelledKeyException cke) { logger.fine("Ignored Error - Key was Cancelled: " + cke); } catch (java.util.NoSuchElementException nsee) { logger.finest("NoSuchElementException: " + nsee); if (addedEvent) _ch.removeEvent(ClientEvent.WRITE); continue;//no need to remove the key } _ch = null; } else if (stopServer == true && key.isAcceptable()) { //we will not accept this key setSkipValidation(false);//reset it back } else { logger.warning("Unknown key got in SelectionKey: " + key); } iterator.remove(); //Remove key Thread.yield(); } //end of iterator iterator = null; } //end of loop }
From source file:org.springframework.boot.devtools.tunnel.client.TunnelClient.java
/** * Start the client and accept incoming connections on the port. * @throws IOException in case of I/O errors */// w w w . jav a 2s .co m public synchronized void start() throws IOException { Assert.state(this.serverThread == null, "Server already started"); ServerSocketChannel serverSocketChannel = ServerSocketChannel.open(); serverSocketChannel.socket().bind(new InetSocketAddress(this.listenPort)); logger.trace("Listening for TCP traffic to tunnel on port " + this.listenPort); this.serverThread = new ServerThread(serverSocketChannel); this.serverThread.start(); }
From source file:org.wso2.carbon.appmgt.impl.idp.sso.SSOConfiguratorUtil.java
/** * Utility method used to check availability of service on host/port. * @param host/*from w w w .jav a 2 s . c o m*/ * @param port * @return true/false can connect */ public static boolean isUp(String host, int port) { try { ServerSocketChannel socketChannel = ServerSocketChannel.open(); socketChannel.configureBlocking(true); InetSocketAddress inetSocketAddress = new InetSocketAddress(host, port); socketChannel.socket().bind(inetSocketAddress); socketChannel.socket().close(); return false; } catch (IOException e) { return true; } }
From source file:xbird.server.services.RemotePagingService.java
private void acceptConnections(final ServerSocketChannel channel) throws IOException { // set to non blocking mode channel.configureBlocking(false);/*from ww w. j a v a 2s . c o m*/ // Bind the server socket to the local host and port InetAddress host = InetAddress.getLocalHost(); InetSocketAddress sockAddr = new InetSocketAddress(host, PORT); ServerSocket socket = channel.socket(); //socket.setReuseAddress(true); socket.bind(sockAddr); // Register accepts on the server socket with the selector. This // step tells the selector that the socket wants to be put on the // ready list when accept operations occur. Selector selector = Selector.open(); ByteBuffer cmdBuffer = ByteBuffer.allocateDirect(MAX_COMMAND_BUFLEN); IOHandler ioHandler = new IOHandler(cmdBuffer); AcceptHandler acceptHandler = new AcceptHandler(ioHandler); channel.register(selector, SelectionKey.OP_ACCEPT, acceptHandler); int n; while ((n = selector.select()) > 0) { // Someone is ready for I/O, get the ready keys Set<SelectionKey> selectedKeys = selector.selectedKeys(); final Iterator<SelectionKey> keyItor = selectedKeys.iterator(); while (keyItor.hasNext()) { SelectionKey key = keyItor.next(); keyItor.remove(); // The key indexes into the selector so you // can retrieve the socket that's ready for I/O Handler handler = (Handler) key.attachment(); try { handler.handle(key); } catch (CancelledKeyException cke) { ; } catch (IOException ioe) { LOG.fatal(ioe); NIOUtils.cancelKey(key); } catch (Throwable e) { LOG.fatal(e); NIOUtils.cancelKey(key); } } } }