List of usage examples for java.nio.channels SelectionKey OP_CONNECT
int OP_CONNECT
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From source file:com.l2jfree.network.mmocore.ReadWriteThread.java
private void finishConnection(SelectionKey key) { try {/*from w w w .j a va2s . c om*/ ((SocketChannel) key.channel()).finishConnect(); } catch (IOException e) { @SuppressWarnings("unchecked") T con = (T) key.attachment(); closeConnectionImpl(con, true); return; } // key might have been invalidated on finishConnect() if (key.isValid()) { key.interestOps(key.interestOps() | SelectionKey.OP_READ); key.interestOps(key.interestOps() & ~SelectionKey.OP_CONNECT); } }
From source file:com.buaa.cfs.net.SocketIOWithTimeout.java
private static String timeoutExceptionString(SelectableChannel channel, long timeout, int ops) { String waitingFor;/*from w ww . ja v a 2 s . c o m*/ switch (ops) { case SelectionKey.OP_READ: waitingFor = "read"; break; case SelectionKey.OP_WRITE: waitingFor = "write"; break; case SelectionKey.OP_CONNECT: waitingFor = "connect"; break; default: waitingFor = "" + ops; } return timeout + " millis timeout while " + "waiting for channel to be ready for " + waitingFor + ". ch : " + channel; }
From source file:HttpDownloadManager.java
public void run() { log.info("HttpDownloadManager thread starting."); // The download thread runs until release() is called while (!released) { // The thread blocks here waiting for something to happen try {//from w ww . j av a 2 s.com selector.select(); } catch (IOException e) { // This should never happen. log.log(Level.SEVERE, "Error in select()", e); return; } // If release() was called, the thread should exit. if (released) break; // If any new Download objects are pending, deal with them first if (!pendingDownloads.isEmpty()) { // Although pendingDownloads is a synchronized list, we still // need to use a synchronized block to iterate through its // elements to prevent a concurrent call to download(). synchronized (pendingDownloads) { Iterator iter = pendingDownloads.iterator(); while (iter.hasNext()) { // Get the pending download object from the list DownloadImpl download = (DownloadImpl) iter.next(); iter.remove(); // And remove it. // Now begin an asynchronous connection to the // specified host and port. We don't block while // waiting to connect. SelectionKey key = null; SocketChannel channel = null; try { // Open an unconnected channel channel = SocketChannel.open(); // Put it in non-blocking mode channel.configureBlocking(false); // Register it with the selector, specifying that // we want to know when it is ready to connect // and when it is ready to read. key = channel.register(selector, SelectionKey.OP_READ | SelectionKey.OP_CONNECT, download); // Create the web server address SocketAddress address = new InetSocketAddress(download.host, download.port); // Ask the channel to start connecting // Note that we don't send the HTTP request yet. // We'll do that when the connection completes. channel.connect(address); } catch (Exception e) { handleError(download, channel, key, e); } } } } // Now get the set of keys that are ready for connecting or reading Set keys = selector.selectedKeys(); if (keys == null) continue; // bug workaround; should not be needed // Loop through the keys in the set for (Iterator i = keys.iterator(); i.hasNext();) { SelectionKey key = (SelectionKey) i.next(); i.remove(); // Remove the key from the set before handling // Get the Download object we attached to the key DownloadImpl download = (DownloadImpl) key.attachment(); // Get the channel associated with the key. SocketChannel channel = (SocketChannel) key.channel(); try { if (key.isConnectable()) { // If the channel is ready to connect, complete the // connection and then send the HTTP GET request to it. if (channel.finishConnect()) { download.status = Status.CONNECTED; // This is the HTTP request we wend String request = "GET " + download.path + " HTTP/1.1\r\n" + "Host: " + download.host + "\r\n" + "Connection: close\r\n" + "\r\n"; // Wrap in a CharBuffer and encode to a ByteBuffer ByteBuffer requestBytes = LATIN1.encode(CharBuffer.wrap(request)); // Send the request to the server. If the bytes // aren't all written in one call, we busy loop! while (requestBytes.hasRemaining()) channel.write(requestBytes); log.info("Sent HTTP request: " + download.host + ":" + download.port + ": " + request); } } if (key.isReadable()) { // If the key indicates that there is data to be read, // then read it and store it in the Download object. int numbytes = channel.read(buffer); // If we read some bytes, store them, otherwise // the download is complete and we need to note this if (numbytes != -1) { buffer.flip(); // Prepare to drain the buffer download.addData(buffer); // Store the data buffer.clear(); // Prepare for another read log.info("Read " + numbytes + " bytes from " + download.host + ":" + download.port); } else { // If there are no more bytes to read key.cancel(); // We're done with the key channel.close(); // And with the channel. download.status = Status.DONE; if (download.listener != null) // notify listener download.listener.done(download); log.info("Download complete from " + download.host + ":" + download.port); } } } catch (Exception e) { handleError(download, channel, key, e); } } } log.info("HttpDownloadManager thread exiting."); }
From source file:com.facebook.infrastructure.net.TcpConnection.java
public void connect(SelectionKey key) { key.interestOps(key.interestOps() & (~SelectionKey.OP_CONNECT)); try {//from w w w. java2s . co m if (!socketChannel_.finishConnect()) { throw new IOException("Unable to finishConnect to " + socketChannel_); } SelectorManager.getSelectorManager().modifyKeyForRead(key); connected_.set(true); // this will flush the pending if (!pendingWrites_.isEmpty()) { SelectorManager.getSelectorManager().modifyKeyForWrite(key_); } resumeStreaming(); } catch (IOException e) { logger_.error("Encountered IOException on connection: " + socketChannel_, e); errorClose(); } }
From source file:com.taobao.gecko.core.nio.impl.Reactor.java
final void dispatchEvent(final Set<SelectionKey> selectedKeySet) { final Iterator<SelectionKey> it = selectedKeySet.iterator(); boolean skipOpRead = false; // while (it.hasNext()) { final SelectionKey key = it.next(); it.remove();/*from w w w.j a va2 s . com*/ if (!key.isValid()) { if (key.attachment() != null) { this.controller.closeSelectionKey(key); } else { key.cancel(); } continue; } try { if (key.isAcceptable()) { this.controller.onAccept(key); continue; } if ((key.readyOps() & SelectionKey.OP_WRITE) == SelectionKey.OP_WRITE) { // Remove write interest key.interestOps(key.interestOps() & ~SelectionKey.OP_WRITE); this.controller.onWrite(key); if (!this.controller.isHandleReadWriteConcurrently()) { skipOpRead = true; } } if (!skipOpRead && (key.readyOps() & SelectionKey.OP_READ) == SelectionKey.OP_READ) { // read key.interestOps(key.interestOps() & ~SelectionKey.OP_READ); // if (!this.controller.getStatistics().isReceiveOverFlow()) { // Remove read interest this.controller.onRead(key);// continue; } else { key.interestOps(key.interestOps() // | SelectionKey.OP_READ); } } if ((key.readyOps() & SelectionKey.OP_CONNECT) == SelectionKey.OP_CONNECT) { this.controller.onConnect(key); continue; } } catch (final RejectedExecutionException e) { // if (key.attachment() instanceof AbstractNioSession) { ((AbstractSession) key.attachment()).onException(e); } this.controller.notifyException(e); if (this.selector.isOpen()) { continue; } else { break; } } catch (final CancelledKeyException e) { // ignore } catch (final Exception e) { if (key.attachment() instanceof AbstractNioSession) { ((AbstractSession) key.attachment()).onException(e); } this.controller.closeSelectionKey(key); this.controller.notifyException(e); log.error("Reactor dispatch events error", e); if (this.selector.isOpen()) { continue; } else { break; } } } }
From source file:com.alibaba.napoli.gecko.core.nio.impl.Reactor.java
final void dispatchEvent(final Set<SelectionKey> selectedKeySet) { final Iterator<SelectionKey> it = selectedKeySet.iterator(); boolean skipOpRead = false; // ? while (it.hasNext()) { final SelectionKey key = it.next(); it.remove();// w w w.j av a2 s. co m if (!key.isValid()) { if (key.attachment() != null) { this.controller.closeSelectionKey(key); } else { key.cancel(); } continue; } try { if (key.isAcceptable()) { this.controller.onAccept(key); continue; } if ((key.readyOps() & SelectionKey.OP_WRITE) == SelectionKey.OP_WRITE) { // Remove write interest key.interestOps(key.interestOps() & ~SelectionKey.OP_WRITE); this.controller.onWrite(key); if (!this.controller.isHandleReadWriteConcurrently()) { skipOpRead = true; } } if (!skipOpRead && (key.readyOps() & SelectionKey.OP_READ) == SelectionKey.OP_READ) { // read key.interestOps(key.interestOps() & ~SelectionKey.OP_READ); // ??? if (!this.controller.getStatistics().isReceiveOverFlow()) { // Remove read interest this.controller.onRead(key);// ? continue; } else { key.interestOps(key.interestOps() // | SelectionKey.OP_READ); } } if ((key.readyOps() & SelectionKey.OP_CONNECT) == SelectionKey.OP_CONNECT) { this.controller.onConnect(key); continue; } } catch (final RejectedExecutionException e) { // ??? if (key.attachment() instanceof AbstractNioSession) { ((AbstractSession) key.attachment()).onException(e); } this.controller.notifyException(e); if (this.selector.isOpen()) { continue; } else { break; } } catch (final CancelledKeyException e) { // ignore } catch (final Exception e) { if (key.attachment() instanceof AbstractNioSession) { ((AbstractSession) key.attachment()).onException(e); } this.controller.closeSelectionKey(key); this.controller.notifyException(e); log.error("Reactor dispatch events error", e); if (this.selector.isOpen()) { continue; } else { break; } } } }
From source file:Proxy.java
String printSelectionOps(SelectionKey key) {
StringBuilder sb = new StringBuilder();
if ((key.readyOps() & SelectionKey.OP_ACCEPT) != 0)
sb.append("OP_ACCEPT ");
if ((key.readyOps() & SelectionKey.OP_CONNECT) != 0)
sb.append("OP_CONNECT ");
if ((key.readyOps() & SelectionKey.OP_READ) != 0)
sb.append("OP_READ ");
if ((key.readyOps() & SelectionKey.OP_WRITE) != 0)
sb.append("OP_WRITE ");
return sb.toString();
}
From source file:net.timewalker.ffmq4.transport.tcp.nio.NIOTcpMultiplexer.java
protected void updateConnectInterest(NIOClientSocketHandler clientHandler, Selector selector) { SocketChannel socketChannel = clientHandler.getSocketChannel(); if (!socketChannel.isOpen()) return;//from w w w .j av a 2 s. c om // We are interested in connect if not already done if (!socketChannel.isConnected()) addInterest(socketChannel, SelectionKey.OP_CONNECT, clientHandler, selector); else removeInterest(socketChannel, SelectionKey.OP_CONNECT, selector); }
From source file:net.timewalker.ffmq4.transport.tcp.nio.NIOTcpMultiplexer.java
protected boolean finalizeConnect(NIOClientSocketHandler clientHandler, SocketChannel channel, Selector selector) {/*from w w w . ja v a 2 s . c om*/ try { // Finish the connection handshake channel.finishConnect(); log.debug("[" + clientHandler.getId() + "] Connected to " + channel.socket().getInetAddress()); // Unregister connect interest removeInterest(channel, SelectionKey.OP_CONNECT, selector); return true; } catch (SocketException e) { log.error("[" + clientHandler.getId() + "] Could not connect to remote server : " + e.getMessage()); return false; } catch (Exception e) { log.error("[" + clientHandler.getId() + "] Could not finalize connection", e); return false; } }
From source file:net.ymate.platform.serv.nio.support.NioEventGroup.java
protected void __doRegisterEvent() throws IOException { if (isServer()) { processor().registerEvent(__channel, SelectionKey.OP_ACCEPT, null); } else {/* w ww . j a v a 2 s. c o m*/ processor().registerEvent(__channel, SelectionKey.OP_CONNECT, session()); if (connectionTimeout() > 0) { session().connectSync(connectionTimeout()); } } }