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:io.jsql.orientserver.OConnection.java

License:Open Source License

public void removebuff(ByteBuf buf) {
    buf.release();
    buf = null;
}

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From source file:io.lettuce.core.protocol.CommandHandler.java

License:Apache License

/**
 * @see io.netty.channel.ChannelInboundHandlerAdapter#channelRead(io.netty.channel.ChannelHandlerContext, java.lang.Object)
 *//*from  w ww  .jav a2 s  . co m*/
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {

    ByteBuf input = (ByteBuf) msg;

    if (!input.isReadable() || input.refCnt() == 0) {
        logger.warn("{} Input not readable {}, {}", logPrefix(), input.isReadable(), input.refCnt());
        return;
    }

    if (debugEnabled) {
        logger.debug("{} Received: {} bytes, {} commands in the stack", logPrefix(), input.readableBytes(),
                stack.size());
    }

    try {
        if (buffer.refCnt() < 1) {
            logger.warn("{} Ignoring received data for closed or abandoned connection", logPrefix());
            return;
        }

        if (debugEnabled && ctx.channel() != channel) {
            logger.debug("{} Ignoring data for a non-registered channel {}", logPrefix(), ctx.channel());
            return;
        }

        if (traceEnabled) {
            logger.trace("{} Buffer: {}", logPrefix(), input.toString(Charset.defaultCharset()).trim());
        }

        buffer.writeBytes(input);

        decode(ctx, buffer);
    } finally {
        input.release();
    }
}

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From source file:io.lunamc.plugins.example.netty.ExamplePlayHandler.java

License:Apache License

private void writeBrand(ChannelHandlerContext ctx) {
    ByteBuf data = ctx.alloc().buffer();
    ByteBuf out = ctx.alloc().buffer();//w w w .  j a  v a 2  s. c  om
    try {
        // Write plugin message data
        ProtocolUtils.writeString(data, "LunaMC_Example");

        // Write packet id of plugin message (0x18)
        ProtocolUtils.writeVarInt(out, 0x18);
        // Write channel name
        ProtocolUtils.writeString(out, "MC|Brand");
        // Write plugin message
        ProtocolUtils.writeVarInt(out, data.readableBytes());
        out.writeBytes(data);
    } finally {
        data.release();
    }

    // Send it to the client
    ctx.writeAndFlush(out, ctx.voidPromise());
}

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From source file:io.moquette.parser.netty.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   ww  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 (QOSType c : message.types()) {
            buff.writeByte(c.byteValue());
        }

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

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From source file:io.pravega.shared.protocol.netty.AppendDecoder.java

License:Open Source License

private ByteBuf getAppendDataBuf(WireCommands.AppendBlockEnd blockEnd, int sizeOfWholeEventsInBlock)
        throws IOException {
    ByteBuf appendDataBuf = currentBlock.getData().slice(0, sizeOfWholeEventsInBlock);
    int remaining = currentBlock.getData().readableBytes() - sizeOfWholeEventsInBlock;
    if (remaining > 0) {
        ByteBuf dataRemainingInBlock = currentBlock.getData().slice(sizeOfWholeEventsInBlock, remaining);
        WireCommand cmd = CommandDecoder.parseCommand(dataRemainingInBlock);
        if (!(cmd.getType() == WireCommandType.PARTIAL_EVENT || cmd.getType() == WireCommandType.PADDING)) {
            throw new InvalidMessageException("Found " + cmd.getType()
                    + " at end of append block but was expecting a partialEvent or padding.");
        }/*  ww w  .j  a  v a2  s . c o m*/
        if (cmd.getType() == WireCommandType.PADDING && blockEnd.getData().readableBytes() != 0) {
            throw new InvalidMessageException("Unexpected data in BlockEnd");
        }
        if (cmd.getType() == WireCommandType.PARTIAL_EVENT) {
            // Work around a bug in netty:
            // See https://github.com/netty/netty/issues/5597
            if (appendDataBuf.readableBytes() == 0) {
                appendDataBuf.release();
                return wrappedBuffer(((WireCommands.PartialEvent) cmd).getData(), blockEnd.getData());
            } else {
                return wrappedBuffer(appendDataBuf, ((WireCommands.PartialEvent) cmd).getData(),
                        blockEnd.getData());
            }
        }
    }
    return appendDataBuf;
}

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From source file:io.pravega.shared.protocol.netty.AppendEncodeDecodeTest.java

License:Open Source License

private void read(ByteBuf in, List<Object> results) throws Exception {
    ByteBuf segmented = (ByteBuf) lengthDecoder.decode(null, in);
    while (segmented != null) {
        int before = results.size();
        WireCommand command = CommandDecoder.parseCommand(segmented);
        if (appendDecoder.acceptInboundMessage(command)) {
            Request request = appendDecoder.processCommand(command);
            if (request != null) {
                results.add(request);//from  w w w  .ja  v a 2 s  .  c om
            }
        } else {
            results.add(command);
        }
        assertTrue(results.size() == before || results.size() == before + 1);
        segmented.release();
        segmented = (ByteBuf) lengthDecoder.decode(null, in);
    }
}

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From source file:io.reactiverse.pgclient.impl.codec.decoder.InitiateSslHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    // This must be a single byte buffer - after that follow the SSL handshake
    ByteBuf byteBuf = (ByteBuf) msg;
    byte b = byteBuf.getByte(0);
    byteBuf.release();
    switch (b) {/*  w  w  w  .  j  ava 2 s.  c om*/
    case MessageType.SSL_YES: {
        conn.socket().upgradeToSsl(v -> {
            ctx.pipeline().remove(this);
            upgradeFuture.complete();
        });
        break;
    }
    case MessageType.SSL_NO: {
        upgradeFuture.fail(new Exception("Postgres Server does not handle SSL connection"));
        break;
    }
    default:
        upgradeFuture.fail(new Exception("Invalid SSL connection message"));
        break;
    }
}

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From source file:io.reactivesocket.netty.tcp.client.ReactiveSocketClientHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object content) {
    ByteBuf byteBuf = (ByteBuf) content;
    try {// ww w. j  a  v a  2  s  .com
        MutableDirectByteBuf mutableDirectByteBuf = new MutableDirectByteBuf(byteBuf);
        final Frame from = Frame.from(mutableDirectByteBuf, 0, mutableDirectByteBuf.capacity());
        subjects.forEach(o -> o.onNext(from));
    } finally {
        byteBuf.release();
    }
}

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From source file:io.reactivesocket.netty.tcp.server.ReactiveSocketServerHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    ByteBuf content = (ByteBuf) msg;
    try {//from   ww w.  j  a v  a  2s  . c o  m
        MutableDirectByteBuf mutableDirectByteBuf = new MutableDirectByteBuf(content);
        Frame from = Frame.from(mutableDirectByteBuf, 0, mutableDirectByteBuf.capacity());
        channelRegistered(ctx);
        ServerTcpDuplexConnection connection = duplexConnections.computeIfAbsent(ctx.channel().id(), i -> {
            logger.info("No connection found for channel id: " + i + " from host "
                    + ctx.channel().remoteAddress().toString());
            ServerTcpDuplexConnection c = new ServerTcpDuplexConnection(ctx);
            ReactiveSocket reactiveSocket = DefaultReactiveSocket.fromServerConnection(c, setupHandler,
                    leaseGovernor, throwable -> throwable.printStackTrace());
            reactiveSocket.startAndWait();
            return c;
        });
        if (connection != null) {
            connection.getSubscribers().forEach(o -> o.onNext(from));
        }
    } finally {
        content.release();
    }
}

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From source file:io.reactivex.netty.protocol.http.server.Http10Test.java

License:Apache License

@Test
public void testHttp1_0RequestWithContent() throws Exception {
    HttpClientRequest<ByteBuf> request = HttpClientRequest.create(HttpVersion.HTTP_1_0, HttpMethod.GET, "/");
    final ByteBuf response = RxNetty.<ByteBuf, ByteBuf>newHttpClientBuilder("localhost", mockServerPort)
            .enableWireLogging(LogLevel.ERROR).build().submit(request)
            .flatMap(new Func1<HttpClientResponse<ByteBuf>, Observable<ByteBuf>>() {
                @Override//  w  ww. j  a v  a 2 s.c  o  m
                public Observable<ByteBuf> call(HttpClientResponse<ByteBuf> response) {
                    return response.getContent();
                }
            }).map(new Func1<ByteBuf, ByteBuf>() {
                @Override
                public ByteBuf call(ByteBuf byteBuf) {
                    return byteBuf.retain();
                }
            }).toBlocking().toFuture().get(1, TimeUnit.MINUTES);
    Assert.assertEquals("Unexpected Content.", WELCOME_SERVER_MSG, response.toString(Charset.defaultCharset()));
    response.release();
}

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