Example usage for java.nio.channels SocketChannel read

Introduction

In this page you can find the example usage for java.nio.channels SocketChannel read.

Prototype

public final long read(ByteBuffer[] dsts) throws IOException 

Source Link

Usage

From source file:reactor.io.net.http.PostAndGetTests.java

private void post(String path, String data, SocketAddress address) {
    try {//from   w  w  w.ja  va2s  .c  o m
        StringBuilder request = new StringBuilder().append(String.format("POST %s HTTP/1.1\r\n", path))
                .append("Connection: Keep-Alive\r\n");
        request.append(String.format("Content-Length: %s\r\n", data.length())).append("\r\n").append(data)
                .append("\r\n");
        java.nio.channels.SocketChannel channel = java.nio.channels.SocketChannel.open(address);
        System.out.println(String.format("post: request >> [%s]", request.toString()));
        channel.write(Buffer.wrap(request.toString()).byteBuffer());
        ByteBuffer buf = ByteBuffer.allocate(4 * 1024);
        while (channel.read(buf) > -1)
            ;
        String response = new String(buf.array());
        System.out.println(String.format("post: << Response: %s", response));
        channel.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

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From source file:reactor.io.netty.http.PostAndGetTests.java

private void post(String path, String data, SocketAddress address) {
    try {// w  w w  .j a  v a 2s. co m
        StringBuilder request = new StringBuilder().append(String.format("POST %s HTTP/1.1\r\n", path))
                .append("Connection: Keep-Alive\r\n");
        request.append(String.format("Content-Length: %s\r\n", data.length())).append("\r\n").append(data)
                .append("\r\n");
        java.nio.channels.SocketChannel channel = java.nio.channels.SocketChannel.open(address);
        System.out.println(String.format("post: request >> [%s]", request.toString()));
        channel.write(ByteBuffer.wrap(request.toString().getBytes()));
        ByteBuffer buf = ByteBuffer.allocate(4 * 1024);
        while (channel.read(buf) > -1)
            ;
        String response = new String(buf.array());
        System.out.println(String.format("post: << Response: %s", response));
        channel.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

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From source file:reactor.ipc.netty.http.client.PostAndGetTests.java

private void get(String path, SocketAddress address) {
    try {/*from  w  ww . j  a  v  a 2s.  co m*/
        StringBuilder request = new StringBuilder().append(String.format("GET %s HTTP/1.1\r\n", path))
                .append("Connection: Keep-Alive\r\n").append("\r\n");
        java.nio.channels.SocketChannel channel = java.nio.channels.SocketChannel.open(address);
        System.out.println(String.format("get: request >> [%s]", request.toString()));
        channel.write(ByteBuffer.wrap(request.toString().getBytes()));
        ByteBuffer buf = ByteBuffer.allocate(4 * 1024);
        while (channel.read(buf) > -1) {
        }
        String response = new String(buf.array());
        System.out.println(String.format("get: << Response: %s", response));
        channel.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

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From source file:reactor.ipc.netty.http.client.PostAndGetTests.java

private void post(String path, String data, SocketAddress address) {
    try {/* www  .jav a  2  s.c o m*/
        StringBuilder request = new StringBuilder().append(String.format("POST %s HTTP/1.1\r\n", path))
                .append("Connection: Keep-Alive\r\n");
        request.append(String.format("Content-Length: %s\r\n", data.length())).append("\r\n").append(data)
                .append("\r\n");
        java.nio.channels.SocketChannel channel = java.nio.channels.SocketChannel.open(address);
        System.out.println(String.format("post: request >> [%s]", request.toString()));
        channel.write(ByteBuffer.wrap(request.toString().getBytes()));
        ByteBuffer buf = ByteBuffer.allocate(4 * 1024);
        while (channel.read(buf) > -1) {
        }
        String response = new String(buf.array());
        Loggers.getLogger(PostAndGetTests.class).info("post: << " + "Response: %s", response);
        channel.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

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From source file:eu.stratosphere.nephele.taskmanager.bytebuffered.OutgoingConnectionThread.java

private void doRead(SelectionKey key) {

    final SocketChannel socketChannel = (SocketChannel) key.channel();
    final OutgoingConnection outgoingConnection = (OutgoingConnection) key.attachment();
    final ByteBuffer buf = ByteBuffer.allocate(8);

    try {/*w ww.  j  a v a 2 s.  c  o m*/

        if (socketChannel.read(buf) == -1) {
            outgoingConnection.reportTransmissionProblem(new IOException("Read unexpected EOF from channel"));
        } else {
            LOG.error("Outgoing connection read real data from channel");
        }
    } catch (IOException ioe) {
        outgoingConnection.reportTransmissionProblem(ioe);
    }
}

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From source file:net.socket.nio.TimeClientHandle.java

private void handleInput(SelectionKey key) throws IOException {

    if (key.isValid()) {
        // ??/*ww  w . j a  va  2 s  . c o m*/
        SocketChannel sc = (SocketChannel) key.channel();
        if (key.isConnectable()) {
            if (sc.finishConnect()) {
                sc.register(selector, SelectionKey.OP_READ);
                doWrite(sc);
            } else {
                System.exit(1);// 
            }
        }
        if (key.isReadable()) {
            ByteBuffer readBuffer = ByteBuffer.allocate(1024);
            int readBytes = sc.read(readBuffer);
            if (readBytes > 0) {
                readBuffer.flip();
                byte[] bytes = new byte[readBuffer.remaining()];
                readBuffer.get(bytes);
                String body = new String(bytes, "UTF-8");
                System.out.println("Now is : " + body);
                this.stop = true;
            } else if (readBytes < 0) {
                // 
                key.cancel();
                sc.close();
            } else {
                ; // 0
            }
        }
    }

}

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From source file:com.turn.ttorrent.client.ConnectionHandler.java

/**
 * Validate an expected handshake on a connection.
 *
 * <p>/*from   w ww  .j av  a  2  s.  com*/
 * Reads an expected handshake message from the given connected socket,
 * parses it and validates that the torrent hash_info corresponds to the
 * torrent we're sharing, and that the peerId matches the peer ID we expect
 * to see coming from the remote peer.
 * </p>
 *
 * @param channel The connected socket channel to the remote peer.
 * @param peerId The peer ID we expect in the handshake. If <em>null</em>,
 * any peer ID is accepted (this is the case for incoming connections).
 * @return The validated handshake message object.
 */
private Handshake validateHandshake(SocketChannel channel, byte[] peerId) throws IOException, ParseException {
    ByteBuffer len = ByteBuffer.allocate(1);
    ByteBuffer data;

    // Read the handshake from the wire
    logger.trace("Reading handshake size (1 byte) from {}...", this.socketRepr(channel));
    if (channel.read(len) < len.capacity()) {
        throw new IOException("Handshake size read underrrun");
    }

    len.rewind();
    int pstrlen = len.get();

    data = ByteBuffer.allocate(Handshake.BASE_HANDSHAKE_LENGTH + pstrlen);
    data.put((byte) pstrlen);
    int expected = data.remaining();
    int read = channel.read(data);
    if (read < expected) {
        throw new IOException("Handshake data read underrun (" + read + " < " + expected + " bytes)");
    }

    // Parse and check the handshake
    data.rewind();
    Handshake hs = Handshake.parse(data);
    if (!Arrays.equals(hs.getInfoHash(), this.torrent.getInfoHash())) {
        throw new ParseException("Handshake for unknow torrent " + Utils.bytesToHex(hs.getInfoHash()) + " from "
                + this.socketRepr(channel) + ".", pstrlen + 9);
    }

    if (peerId != null && !Arrays.equals(hs.getPeerId(), peerId)) {
        throw new ParseException("Announced peer ID " + Utils.bytesToHex(hs.getPeerId())
                + " did not match expected peer ID " + Utils.bytesToHex(peerId) + ".", pstrlen + 29);
    }

    return hs;
}

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From source file:com.bittorrent.mpetazzoni.client.ConnectionHandler.java

/**
 * Validate an expected handshake on a connection.
 *
 * <p>/*from   w  w  w  .  jav  a 2  s  . c  o  m*/
 * Reads an expected handshake message from the given connected socket,
 * parses it and validates that the torrent hash_info corresponds to the
 * torrent we're sharing, and that the peerId matches the peer ID we expect
 * to see coming from the remote peer.
 * </p>
 *
 * @param channel The connected socket channel to the remote peer.
 * @param peerId The peer ID we expect in the handshake. If <em>null</em>,
 * any peer ID is accepted (this is the case for incoming connections).
 * @return The validated handshake message object.
 */
private Handshake validateHandshake(SocketChannel channel, byte[] peerId) throws IOException, ParseException {
    ByteBuffer len = ByteBuffer.allocate(1);
    ByteBuffer data;

    // Read the handshake from the wire
    logger.trace("Reading handshake size (1 byte) from {}...", this.socketRepr(channel));
    if (channel.read(len) < len.capacity()) {
        throw new IOException("Handshake size read underrrun");
    }

    len.rewind();
    int pstrlen = len.get();

    data = ByteBuffer.allocate(Handshake.BASE_HANDSHAKE_LENGTH + pstrlen);
    data.put((byte) pstrlen);
    int expected = data.remaining();
    int read = channel.read(data);
    if (read < expected) {
        throw new IOException("Handshake data read underrun (" + read + " < " + expected + " bytes)");
    }

    // Parse and check the handshake
    data.rewind();
    Handshake hs = Handshake.parse(data);
    if (!Arrays.equals(hs.getInfoHash(), this.torrent.getInfoHash())) {
        throw new ParseException("Handshake for unknow torrent "
                + Torrent.byteArrayToHexString(hs.getInfoHash()) + " from " + this.socketRepr(channel) + ".",
                pstrlen + 9);
    }

    if (peerId != null && !Arrays.equals(hs.getPeerId(), peerId)) {
        throw new ParseException(
                "Announced peer ID " + Torrent.byteArrayToHexString(hs.getPeerId())
                        + " did not match expected peer ID " + Torrent.byteArrayToHexString(peerId) + ".",
                pstrlen + 29);
    }

    return hs;
}

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From source file:com.alexkli.jhb.Worker.java

@Override
public void run() {
    try {/*w  w w.  j  a  v a  2  s.com*/
        while (true) {
            long start = System.nanoTime();

            QueueItem<HttpRequestBase> item = queue.take();

            idleAvg.add(System.nanoTime() - start);

            if (item.isPoisonPill()) {
                return;
            }

            HttpRequestBase request = item.getRequest();

            if ("java".equals(config.client)) {
                System.setProperty("http.keepAlive", "false");

                item.sent();

                try {
                    HttpURLConnection http = (HttpURLConnection) new URL(request.getURI().toString())
                            .openConnection();
                    http.setConnectTimeout(5000);
                    http.setReadTimeout(5000);
                    int statusCode = http.getResponseCode();

                    consumeAndCloseStream(http.getInputStream());

                    if (statusCode == 200) {
                        item.done();
                    } else {
                        item.failed();
                    }
                } catch (IOException e) {
                    System.err.println("Failed request: " + e.getMessage());
                    e.printStackTrace();
                    //                        System.exit(2);
                    item.failed();
                }
            } else if ("ahc".equals(config.client)) {
                try {
                    item.sent();

                    try (CloseableHttpResponse response = httpClient.execute(request, context)) {
                        int statusCode = response.getStatusLine().getStatusCode();
                        if (statusCode == 200) {
                            item.done();
                        } else {
                            item.failed();
                        }
                    }
                } catch (IOException e) {
                    System.err.println("Failed request: " + e.getMessage());
                    item.failed();
                }
            } else if ("fast".equals(config.client)) {
                try {
                    URI uri = request.getURI();

                    item.sent();

                    InetAddress addr = InetAddress.getByName(uri.getHost());
                    Socket socket = new Socket(addr, uri.getPort());
                    PrintWriter out = new PrintWriter(socket.getOutputStream());
                    //                        BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
                    // send an HTTP request to the web server
                    out.println("GET / HTTP/1.1");
                    out.append("Host: ").append(uri.getHost()).append(":").println(uri.getPort());
                    out.println("Connection: Close");
                    out.println();
                    out.flush();

                    // read the response
                    consumeAndCloseStream(socket.getInputStream());
                    //                        boolean loop = true;
                    //                        StringBuilder sb = new StringBuilder(8096);
                    //                        while (loop) {
                    //                            if (in.ready()) {
                    //                                int i = 0;
                    //                                while (i != -1) {
                    //                                    i = in.read();
                    //                                    sb.append((char) i);
                    //                                }
                    //                                loop = false;
                    //                            }
                    //                        }
                    item.done();
                    socket.close();

                } catch (IOException e) {
                    e.printStackTrace();
                    item.failed();
                }
            } else if ("nio".equals(config.client)) {
                URI uri = request.getURI();

                item.sent();

                String requestBody = "GET / HTTP/1.1\n" + "Host: " + uri.getHost() + ":" + uri.getPort() + "\n"
                        + "Connection: Close\n\n";

                try {
                    InetSocketAddress addr = new InetSocketAddress(uri.getHost(), uri.getPort());
                    SocketChannel channel = SocketChannel.open();
                    channel.socket().setSoTimeout(5000);
                    channel.connect(addr);

                    ByteBuffer msg = ByteBuffer.wrap(requestBody.getBytes());
                    channel.write(msg);
                    msg.clear();

                    ByteBuffer buf = ByteBuffer.allocate(1024);

                    int count;
                    while ((count = channel.read(buf)) != -1) {
                        buf.flip();

                        byte[] bytes = new byte[count];
                        buf.get(bytes);

                        buf.clear();
                    }
                    channel.close();

                    item.done();

                } catch (IOException e) {
                    e.printStackTrace();
                    item.failed();
                }
            }
        }
    } catch (InterruptedException e) {
        System.err.println("Worker thread [" + this.toString() + "] was interrupted: " + e.getMessage());
    }
}

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From source file:Proxy.java

/**
 * Read all data from <code>from</code> and write it to <code>to</code>.
 * Returns false if channel was closed// w  w  w .  j av  a  2s  .  c o  m
 */
boolean relay(SocketChannel from, SocketChannel to, ByteBuffer buf) throws Exception {
    int num;
    StringBuilder sb;

    buf.clear();
    while (true) {
        num = from.read(buf);
        if (num < 0)
            return false;
        else if (num == 0)
            return true;
        buf.flip();
        if (verbose) {
            log(printRelayedData(toString(from), toString(to), buf.remaining()));
        }
        if (debug) {
            sb = new StringBuilder();
            sb.append(new String(buf.array()).trim());
            sb.append('\n');
            log(sb.toString());
        }
        to.write(buf);
        buf.flip();
    }
}

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