Example usage for io.netty.buffer ByteBuf release

List of usage examples for io.netty.buffer ByteBuf release

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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:chapter10.WebSocketServerHandler.java

License:Apache License

private static void sendHttpResponse(ChannelHandlerContext ctx, FullHttpRequest req, FullHttpResponse res) {
    // /*  w w  w. ja va 2 s  .c  o  m*/
    if (res.status().code() != 200) {
        ByteBuf buf = Unpooled.copiedBuffer(res.status().toString(), CharsetUtil.UTF_8);
        res.content().writeBytes(buf);
        buf.release();
        setContentLength(res, res.content().readableBytes());
    }

    // ?Keep-Alive
    ChannelFuture f = ctx.channel().writeAndFlush(res);
    if (!isKeepAlive(req) || res.status().code() != 200) {
        f.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:cn.dennishucd.nettyhttpserver.HttpServerHandler.java

License:Apache License

@SuppressWarnings("deprecation")
@Override// ww  w .  ja va 2 s.  co  m
public void channelRead(ChannelHandlerContext ctx, Object msg) {
    if (msg instanceof HttpRequest) {
        request = (HttpRequest) msg;

        if (HttpUtil.is100ContinueExpected(request)) {
            ctx.write(new DefaultFullHttpResponse(HTTP_1_1, CONTINUE));
        }

        if (!request.uri().equalsIgnoreCase(URL)) {
            sendError(ctx, NOT_FOUND);

            return;
        }
    }

    if (msg instanceof HttpContent) {
        HttpContent content = (HttpContent) msg;
        ByteBuf buf = content.content();
        UserToken ut = CTools.JSONStr2Object(buf.toString(io.netty.util.CharsetUtil.UTF_8), UserToken.class);

        logger.info("request body: " + buf.toString(io.netty.util.CharsetUtil.UTF_8));
        buf.release();

        boolean keepAlive = HttpUtil.isKeepAlive(request);
        FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, OK,
                Unpooled.wrappedBuffer(CONTENT.getBytes()));
        response.headers().set(CONTENT_TYPE, "application/json");
        response.headers().setInt(CONTENT_LENGTH, response.content().readableBytes());

        logger.info("response body: " + CONTENT);

        if (!keepAlive) {
            ctx.write(response).addListener(ChannelFutureListener.CLOSE);
        } else {
            response.headers().set(CONNECTION, KEEP_ALIVE);
            ctx.write(response);
        }

    } else {
        ctx.fireChannelRead(msg);
    }
}

From source file:code.google.nfs.rpc.netty.serialize.NettyProtocolDecoder.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    RecyclableArrayList out = RecyclableArrayList.newInstance();
    try {/*from   ww  w .  j a  v a  2  s .  com*/
        if (msg instanceof ByteBuf) {
            ByteBuf data = (ByteBuf) msg;
            if (cumulation == null) {
                cumulation = data;
                try {
                    callDecode(ctx, cumulation, out);
                } finally {
                    if (cumulation != null && !cumulation.isReadable()) {
                        cumulation.release();
                        cumulation = null;
                    }
                }
            } else {
                try {
                    if (cumulation.writerIndex() > cumulation.maxCapacity() - data.readableBytes()) {
                        ByteBuf oldCumulation = cumulation;
                        cumulation = ctx.alloc().buffer(oldCumulation.readableBytes() + data.readableBytes());
                        cumulation.writeBytes(oldCumulation);
                        oldCumulation.release();
                    }
                    cumulation.writeBytes(data);
                    callDecode(ctx, cumulation, out);
                } finally {
                    if (cumulation != null) {
                        if (!cumulation.isReadable()) {
                            cumulation.release();
                            cumulation = null;
                        } else {
                            cumulation.discardSomeReadBytes();
                        }
                    }
                    data.release();
                }
            }
        } else {
            out.add(msg);
        }
    } catch (DecoderException e) {
        throw e;
    } catch (Throwable t) {
        throw new DecoderException(t);
    } finally {
        if (out.isEmpty()) {
            decodeWasNull = true;
        }

        List<Object> results = new ArrayList<Object>();
        for (Object result : out) {
            results.add(result);
        }
        ctx.fireChannelRead(results);

        out.recycle();
    }
}

From source file:code.google.nfs.rpc.netty.serialize.NettyProtocolDecoder.java

License:Apache License

@Override
public final void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
    ByteBuf buf = internalBuffer();
    int readable = buf.readableBytes();
    if (buf.isReadable()) {
        ByteBuf bytes = buf.readBytes(readable);
        buf.release();
        ctx.fireChannelRead(bytes);//from  w  ww  .jav  a 2 s .  co m
    }
    cumulation = null;
    ctx.fireChannelReadComplete();
    handlerRemoved0(ctx);
}

From source file:com.addthis.hydra.data.tree.prop.DataCounting.java

License:Apache License

@Override
public byte[] bytesEncode(long version) {
    preEncode();//from www . j  av a2 s  .  c om
    ByteBuf buffer = PooledByteBufAllocator.DEFAULT.buffer();
    try {
        Varint.writeUnsignedVarInt(ver, buffer);
        Varint.writeUnsignedVarInt(M.length, buffer);
        buffer.writeBytes(M);
        byte[] bytes = new byte[buffer.readableBytes()];
        buffer.readBytes(bytes);
        return bytes;
    } finally {
        buffer.release();
    }
}

From source file:com.addthis.hydra.data.tree.prop.DataCounting.java

License:Apache License

@Override
public void bytesDecode(byte[] b, long version) {
    ByteBuf buffer = Unpooled.wrappedBuffer(b);
    try {//from   www  . ja v a2 s .  c om
        ver = Varint.readUnsignedVarInt(buffer);
        M = new byte[Varint.readUnsignedVarInt(buffer)];
        buffer.readBytes(M);
    } finally {
        buffer.release();
    }
    postDecode();
}

From source file:com.addthis.hydra.data.tree.prop.DataKeyTop.java

License:Apache License

@Override
public byte[] bytesEncode(long version) {
    byte[] bytes = null;
    ByteBuf buf = PooledByteBufAllocator.DEFAULT.buffer();
    try {/*  w  w w  .ja  v a  2  s . com*/
        byte[] topBytes = top.bytesEncode(version);
        Varint.writeUnsignedVarInt(topBytes.length, buf);
        buf.writeBytes(topBytes);
        Varint.writeUnsignedVarInt(size, buf);
        bytes = new byte[buf.readableBytes()];
        buf.readBytes(bytes);
    } finally {
        buf.release();
    }
    return bytes;
}

From source file:com.addthis.hydra.data.tree.prop.DataKeyTop.java

License:Apache License

@Override
public void bytesDecode(byte[] b, long version) {
    top = new ConcurrentKeyTopper();
    ByteBuf buf = Unpooled.wrappedBuffer(b);
    try {/*from   w  w  w.  ja v a2 s. c o m*/
        int topBytesLength = Varint.readUnsignedVarInt(buf);
        if (topBytesLength > 0) {
            byte[] topBytes = new byte[topBytesLength];
            buf.readBytes(topBytes);
            top.bytesDecode(topBytes, version);
        } else {
            top.init();
        }
        size = Varint.readUnsignedVarInt(buf);
    } finally {
        buf.release();
    }
}

From source file:com.addthis.hydra.data.tree.prop.DataMap.java

License:Apache License

@Override
public byte[] bytesEncode(long version) {
    byte[] encodedBytes = null;
    ByteBuf buf = PooledByteBufAllocator.DEFAULT.buffer();
    try {//  ww  w  . jav a2  s.  c o m
        synchronized (map) {
            preEncode();
            Varint.writeUnsignedVarInt(keys.length, buf);
            for (String key : keys) {
                writeString(buf, key);
            }
            for (String val : vals) {
                writeString(buf, val);
            }
            Varint.writeUnsignedVarInt(size, buf);
        }
        encodedBytes = new byte[buf.readableBytes()];
        buf.readBytes(encodedBytes);
    } catch (UnsupportedEncodingException e) {
        throw new RuntimeException(e);
    } finally {
        buf.release();
    }
    return encodedBytes;
}

From source file:com.addthis.hydra.data.tree.prop.DataMap.java

License:Apache License

@Override
public void bytesDecode(byte[] b, long version) {
    ByteBuf buf = Unpooled.wrappedBuffer(b);
    try {//from   w  w w .ja v  a2 s.c  o  m
        int length = Varint.readUnsignedVarInt(buf);
        keys = new String[length];
        vals = new String[length];
        try {
            for (int i = 0; i < length; i++) {
                keys[i] = readString(buf);
            }
            for (int i = 0; i < length; i++) {
                vals[i] = readString(buf);
            }
            if (buf.readableBytes() > 0) {
                size = Varint.readUnsignedVarInt(buf);
            } else {
                if (!IGNORE_DESERIALIZATION_ERROR) {
                    throw new RuntimeException("Tried to deserialize a corrupted DataMap attachment. "
                            + "set the system property hydra.tree.data.map=true to ignore (Map Attachment will be empty on old nodes)");
                }
            }
        } catch (UnsupportedEncodingException e) {
            throw new RuntimeException(e);
        }
    } finally {
        buf.release();
    }
    postDecode();
}