Example usage for io.netty.buffer ByteBuf release

Introduction

In this page you can find the example usage for io.netty.buffer ByteBuf release.

Prototype

boolean release();

Source Link

Document

Decreases the reference count by 1 and deallocates this object if the reference count reaches at 0 .

Usage

From source file:com.pokersu.server.WebSocketServerHandler.java

License:Apache License

private static void sendHttpResponse(ChannelHandlerContext ctx, HttpRequest req, FullHttpResponse res) {
    // Generate an error page if response getStatus code is not OK (200).
    if (res.getStatus().code() != 200) {
        ByteBuf buf = Unpooled.copiedBuffer(res.getStatus().toString(), CharsetUtil.UTF_8);
        res.content().writeBytes(buf);//from w w w . j a v  a  2  s  .c o  m
        buf.release();
        //            HttpUtil.setContentLength(res, res.content().readableBytes());
    }

    // Send the response and close the connection if necessary.
    ChannelFuture f = ctx.channel().writeAndFlush(res);
    if (/*!HttpUtil.isKeepAlive(req) || */ res.getStatus().code() != 200) {
        f.addListener(ChannelFutureListener.CLOSE);
    }
}

---

From source file:com.pubkit.platform.messaging.protocol.mqtt.proto.parser.ConnectEncoder.java

License:Open Source License

@Override
protected void encode(ChannelHandlerContext chc, ConnectMessage message, ByteBuf out) {
    ByteBuf staticHeaderBuff = chc.alloc().buffer(12);
    ByteBuf buff = chc.alloc().buffer();
    ByteBuf variableHeaderBuff = chc.alloc().buffer(12);
    try {/*  ww w  .j ava2s . c  o m*/
        staticHeaderBuff.writeBytes(Utils.encodeString("MQIsdp"));

        //version 
        staticHeaderBuff.writeByte(0x03);

        //connection flags and Strings
        byte connectionFlags = 0;
        if (message.isCleanSession()) {
            connectionFlags |= 0x02;
        }
        if (message.isWillFlag()) {
            connectionFlags |= 0x04;
        }
        connectionFlags |= ((message.getWillQos() & 0x03) << 3);
        if (message.isWillRetain()) {
            connectionFlags |= 0x020;
        }
        if (message.isPasswordFlag()) {
            connectionFlags |= 0x040;
        }
        if (message.isUserFlag()) {
            connectionFlags |= 0x080;
        }
        staticHeaderBuff.writeByte(connectionFlags);

        //Keep alive timer
        staticHeaderBuff.writeShort(message.getKeepAlive());

        //Variable part
        if (message.getClientID() != null) {
            variableHeaderBuff.writeBytes(Utils.encodeString(message.getClientID()));
            if (message.isWillFlag()) {
                variableHeaderBuff.writeBytes(Utils.encodeString(message.getWillTopic()));
                variableHeaderBuff.writeBytes(Utils.encodeString(message.getWillMessage()));
            }
            if (message.isUserFlag() && message.getUsername() != null) {
                variableHeaderBuff.writeBytes(Utils.encodeString(message.getUsername()));
                if (message.isPasswordFlag() && message.getPassword() != null) {
                    variableHeaderBuff.writeBytes(Utils.encodeString(message.getPassword()));
                }
            }
        }

        int variableHeaderSize = variableHeaderBuff.readableBytes();
        buff.writeByte(AbstractMessage.CONNECT << 4);
        buff.writeBytes(Utils.encodeRemainingLength(12 + variableHeaderSize));
        buff.writeBytes(staticHeaderBuff).writeBytes(variableHeaderBuff);

        out.writeBytes(buff);
    } finally {
        staticHeaderBuff.release();
        buff.release();
        variableHeaderBuff.release();
    }
}

---

From source file:com.pubkit.platform.messaging.protocol.mqtt.proto.parser.SubAckEncoder.java

License:Open Source License

@Override
protected void encode(ChannelHandlerContext chc, SubAckMessage message, ByteBuf out) {
    if (message.types().isEmpty()) {
        throw new IllegalArgumentException("Found a suback message with empty topics");
    }/*from  w w w . j a v  a 2  s  . c o  m*/

    int variableHeaderSize = 2 + message.types().size();
    ByteBuf buff = chc.alloc().buffer(6 + variableHeaderSize);
    try {
        buff.writeByte(AbstractMessage.SUBACK << 4);
        buff.writeBytes(Utils.encodeRemainingLength(variableHeaderSize));
        buff.writeShort(message.getMessageID());
        for (AbstractMessage.QOSType c : message.types()) {
            buff.writeByte(c.ordinal());
        }

        out.writeBytes(buff);
    } finally {
        buff.release();
    }
}

---

From source file:com.pubkit.platform.messaging.protocol.mqtt.proto.parser.SubscribeEncoder.java

License:Open Source License

@Override
protected void encode(ChannelHandlerContext chc, SubscribeMessage message, ByteBuf out) {
    if (message.subscriptions().isEmpty()) {
        throw new IllegalArgumentException("Found a subscribe message with empty topics");
    }/*from  w  w w . j a  v a2  s . c om*/

    if (message.getQos() != AbstractMessage.QOSType.LEAST_ONE) {
        throw new IllegalArgumentException("Expected a message with QOS 1, found " + message.getQos());
    }

    ByteBuf variableHeaderBuff = chc.alloc().buffer(4);
    ByteBuf buff = null;
    try {
        variableHeaderBuff.writeShort(message.getMessageID());
        for (SubscribeMessage.Couple c : message.subscriptions()) {
            variableHeaderBuff.writeBytes(Utils.encodeString(c.getTopicFilter()));
            variableHeaderBuff.writeByte(c.getQos());
        }

        int variableHeaderSize = variableHeaderBuff.readableBytes();
        byte flags = Utils.encodeFlags(message);
        buff = chc.alloc().buffer(2 + variableHeaderSize);

        buff.writeByte(AbstractMessage.SUBSCRIBE << 4 | flags);
        buff.writeBytes(Utils.encodeRemainingLength(variableHeaderSize));
        buff.writeBytes(variableHeaderBuff);

        out.writeBytes(buff);
    } finally {
        variableHeaderBuff.release();
        buff.release();
    }
}

---

From source file:com.ReceiveFileHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    ByteBuf in = (ByteBuf) msg;

    try {/*from   ww w  . j  a v  a2 s  .  c  o  m*/
        while (in.isReadable()) {
            in.readBytes(bos, in.readableBytes());
        }
        bos.flush();
    } finally {
        in.release();
    }
}

---

From source file:com.relayrides.pushy.apns.ApnsClient.java

License:Open Source License

/**
 * <p>Registers a private signing key for the given topics. Clears any topics and keys previously associated with
 * the given team.</p>/*from  w  w w . j av a2 s. c  o m*/
 *
 * <p>Callers <em>must</em> register signing keys for all topics to which they intend to send notifications. Tokens
 * may be registered at any time in a client's life-cycle.</p>
 *
 * @param signingKeyInputStream an input stream that provides a PEM-encoded, PKCS#8-formatted elliptic-curve private
 * key with which to sign authentication tokens
 * @param teamId the Apple-issued, ten-character identifier for the team to which the given private key belongs
 * @param keyId the Apple-issued, ten-character identifier for the given private key
 * @param topics the topics to which the given signing key is applicable
 *
 * @throws InvalidKeyException if the given key is invalid for any reason
 * @throws NoSuchAlgorithmException if the JRE does not support the required token-signing algorithm
 * @throws IOException if a private key could not be loaded from the given input stream for any reason
 *
 * @since 0.9
 */
public void registerSigningKey(final InputStream signingKeyInputStream, final String teamId, final String keyId,
        final String... topics) throws InvalidKeyException, NoSuchAlgorithmException, IOException {
    final ECPrivateKey signingKey;
    {
        final String base64EncodedPrivateKey;
        {
            final StringBuilder privateKeyBuilder = new StringBuilder();

            final BufferedReader reader = new BufferedReader(new InputStreamReader(signingKeyInputStream));
            boolean haveReadHeader = false;
            boolean haveReadFooter = false;

            for (String line; (line = reader.readLine()) != null;) {
                if (!haveReadHeader) {
                    if (line.contains("BEGIN PRIVATE KEY")) {
                        haveReadHeader = true;
                        continue;
                    }
                } else {
                    if (line.contains("END PRIVATE KEY")) {
                        haveReadFooter = true;
                        break;
                    } else {
                        privateKeyBuilder.append(line);
                    }
                }
            }

            if (!(haveReadHeader && haveReadFooter)) {
                throw new IOException("Could not find private key header/footer");
            }

            base64EncodedPrivateKey = privateKeyBuilder.toString();
        }

        final ByteBuf wrappedEncodedPrivateKey = Unpooled
                .wrappedBuffer(base64EncodedPrivateKey.getBytes(StandardCharsets.US_ASCII));

        try {
            final ByteBuf decodedPrivateKey = Base64.decode(wrappedEncodedPrivateKey);

            try {
                final byte[] keyBytes = new byte[decodedPrivateKey.readableBytes()];
                decodedPrivateKey.readBytes(keyBytes);

                final PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(keyBytes);
                final KeyFactory keyFactory = KeyFactory.getInstance("EC");
                signingKey = (ECPrivateKey) keyFactory.generatePrivate(keySpec);
            } catch (final InvalidKeySpecException e) {
                throw new InvalidKeyException(e);
            } finally {
                decodedPrivateKey.release();
            }
        } finally {
            wrappedEncodedPrivateKey.release();
        }
    }

    this.registerSigningKey(signingKey, teamId, keyId, topics);
}

---

From source file:com.replaymod.sponge.recording.spongecommon.SpongeConnectionEventListener.java

License:MIT License

@Override
public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
    if (!firedInitializing
            && "net.minecraft.network.login.server.S02PacketLoginSuccess".equals(msg.getClass().getName())) {
        Object profile = Reflection.getFieldValueByType(msg.getClass(), "com.mojang.authlib.GameProfile", msg);
        String name = (String) Reflection.getFieldValueByType(profile.getClass(), "java.lang.String", profile);
        UUID uuid = (UUID) Reflection.getFieldValueByType(profile.getClass(), "java.util.UUID", profile);
        spongeConnection.getGame().getEventManager()
                .post(new SpongeConnectionInitializingEvent(spongeConnection, name, uuid));
        firedInitializing = true;/*  w  ww  .  j a va2 s  . c  o  m*/
        Optional<Recorder> recorder = spongeConnection.getRecorder();
        if (recorder.isPresent()) {
            SpongeRecorder spongeRecorder = (SpongeRecorder) recorder.get();
            ByteBuf buf = ctx.alloc().buffer(16);
            buf.writeLong(uuid.getMostSignificantBits());
            buf.writeLong(uuid.getLeastSignificantBits());
            spongeRecorder.writePacket(false, buf);
            buf.release();
        }
    }
    super.write(ctx, msg, promise);
}

---

From source file:com.sangupta.swift.netty.NettyUtils.java

License:Apache License

public static void sendListing(ChannelHandlerContext ctx, File dir) {
    FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
    response.headers().set(HttpHeaders.Names.CONTENT_TYPE, "text/html; charset=UTF-8");

    StringBuilder buf = new StringBuilder();
    String dirPath = dir.getPath();

    buf.append("<!DOCTYPE html>\r\n");
    buf.append("<html><head><title>");
    buf.append("Listing of: ");
    buf.append(dirPath);//from   w  w  w .ja va 2 s. c  o m
    buf.append("</title></head><body>\r\n");

    buf.append("<h3>Listing of: ");
    buf.append(dirPath);
    buf.append("</h3>\r\n");

    buf.append("<ul>");
    buf.append("<li><a href=\"../\">..</a></li>\r\n");

    for (File f : dir.listFiles()) {
        if (f.isHidden() || !f.canRead()) {
            continue;
        }

        String name = f.getName();
        if (!ALLOWED_FILE_NAME.matcher(name).matches()) {
            continue;
        }

        buf.append("<li><a href=\"");
        buf.append(name);
        buf.append("\">");
        buf.append(name);
        buf.append("</a></li>\r\n");
    }

    buf.append("</ul></body></html>\r\n");
    ByteBuf buffer = Unpooled.copiedBuffer(buf, CharsetUtil.UTF_8);
    response.content().writeBytes(buffer);
    buffer.release();

    // Close the connection as soon as the error message is sent.
    ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
}

---

From source file:com.sangupta.swift.netty.NettyUtils.java

License:Apache License

public static void sendListing(final ChannelHandlerContext ctx, final File dir, final String spdyRequest) {
    FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
    response.headers().set(HttpHeaders.Names.CONTENT_TYPE, "text/html; charset=UTF-8");

    if (AssertUtils.isNotEmpty(spdyRequest)) {
        response.headers().set(SPDY_STREAM_ID, spdyRequest);
        response.headers().set(SPDY_STREAM_PRIO, 0);
    }//from  ww  w. ja v  a  2  s.  co  m

    StringBuilder buf = new StringBuilder();
    String dirPath = dir.getPath();

    buf.append("<!DOCTYPE html>\r\n");
    buf.append("<html><head><title>");
    buf.append("Listing of: ");
    buf.append(dirPath);
    buf.append("</title></head><body>\r\n");

    buf.append("<h3>Listing of: ");
    buf.append(dirPath);
    buf.append("</h3>\r\n");

    buf.append("<ul>");
    buf.append("<li><a href=\"../\">..</a></li>\r\n");

    for (File f : dir.listFiles()) {
        if (f.isHidden() || !f.canRead()) {
            continue;
        }

        String name = f.getName();
        if (!ALLOWED_FILE_NAME.matcher(name).matches()) {
            continue;
        }

        buf.append("<li><a href=\"");
        buf.append(name);
        buf.append("\">");
        buf.append(name);
        buf.append("</a></li>\r\n");
    }

    buf.append("</ul></body></html>\r\n");
    ByteBuf buffer = Unpooled.copiedBuffer(buf, CharsetUtil.UTF_8);
    response.content().writeBytes(buffer);
    buffer.release();

    // Close the connection as soon as the error message is sent.
    ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
}

---

From source file:com.sheldon.javaPrj.netty.TimeClientHandler.java

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    ByteBuf m = (ByteBuf) msg;
    buf.writeBytes(m);//w w w. j a  va  2  s .c  o  m
    m.release();
    try {
        long currentTimeMillis = (buf.readUnsignedInt() - 2208988800L) * 1000L;
        System.out.println(new Date(currentTimeMillis));
        ctx.close();
    } finally {
        m.release();
    }
}

---

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