Example usage for io.netty.buffer ByteBuf readBytes

Introduction

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

Prototype

public abstract ByteBuf readBytes(ByteBuffer dst);

Source Link

Document

Transfers this buffer's data to the specified destination starting at the current readerIndex until the destination's position reaches its limit, and increases the readerIndex by the number of the transferred bytes.

Usage

From source file:com.digitalpetri.opcua.stack.core.channel.headers.AsymmetricSecurityHeader.java

License:Apache License

public static AsymmetricSecurityHeader decode(ByteBuf buffer) {
    /* SecurityPolicyUri */
    int securityPolicyUriLength = buffer.readInt();
    String securityPolicyUri = new String(buffer.readBytes(securityPolicyUriLength).array(),
            Charset.forName("UTF-8"));

    /* SenderCertificate */
    int senderCertificateLength = buffer.readInt();
    byte[] senderCertificate = senderCertificateLength >= 0 ? buffer.readBytes(senderCertificateLength).array()
            : null;//from  ww w. ja  v  a 2 s. c  om

    /* ReceiverCertificateThumbprint */
    int thumbprintLength = buffer.readInt();
    byte[] receiverCertificateThumbprint = thumbprintLength >= 0 ? buffer.readBytes(thumbprintLength).array()
            : null;

    return new AsymmetricSecurityHeader(securityPolicyUri, new ByteString(senderCertificate),
            new ByteString(receiverCertificateThumbprint));
}

---

From source file:com.digitalpetri.opcua.stack.core.serialization.OpcUaDataTypeEncoding.java

License:Apache License

@Override
public ByteString encodeToByteString(Object object, NodeId encodingTypeId) {
    EncoderDelegate<Object> delegate = DelegateRegistry.getEncoder(encodingTypeId);

    ByteBuf buffer = allocator.buffer().order(ByteOrder.LITTLE_ENDIAN);

    BinaryEncoder encoder = new BinaryEncoder();
    encoder.setBuffer(buffer);//ww w .  j  ava 2 s .co m

    delegate.encode(object, encoder);

    byte[] bs = new byte[buffer.readableBytes()];
    buffer.readBytes(bs);
    buffer.release();

    return ByteString.of(bs);
}

---

From source file:com.dingwang.netty.decoder.PersonDecoder.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {

    if (in == null || in.readableBytes() <= 0) {
        System.out.println("##################");
        return;/* www  .java  2s  .co m*/
    }
    byte[] src = new byte[in.readableBytes()];

    in.readBytes(src);

    String message = new String(src, "UTF-8");

    Person p = new Gson().fromJson(message, Person.class);

    System.out.println("message======" + message);

    out.add(p);
}

---

From source file:com.dingwang.rpc.decode.RpcDecoder.java

License:Open Source License

@Override
public final void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    if (in.readableBytes() < 4) {
        return;/*w w  w.j  a  v  a  2s  . c  om*/
    }
    in.markReaderIndex();
    int dataLength = in.readInt();
    if (dataLength < 0) {
        ctx.close();
    }
    if (in.readableBytes() < dataLength) {
        in.resetReaderIndex();
    }
    byte[] data = new byte[dataLength];
    in.readBytes(data);

    Object obj = SerializationUtil.deserialize(data, genericClass);
    out.add(obj);
}

---

From source file:com.dinstone.jrpc.transport.netty4.TransportProtocolDecoder.java

License:Apache License

private byte[] readFrame(ByteBuf in) {
    if (in.readableBytes() > 4) {
        in.markReaderIndex();/*from w w  w  . jav  a 2s  . c  o  m*/
        int len = in.readInt();
        if (len > maxObjectSize) {
            throw new IllegalStateException(
                    "The encoded object is too big: " + len + " (> " + maxObjectSize + ")");
        } else if (len < 1) {
            throw new IllegalStateException("The encoded object is too small: " + len + " (< 1)");
        }

        if (in.readableBytes() < len) {
            in.resetReaderIndex();
            return null;
        }

        byte[] rpcBytes = new byte[len];
        in.readBytes(rpcBytes);
        return rpcBytes;
    }

    return null;
}

---

From source file:com.dinstone.rpc.netty.RpcProtocolDecoder.java

License:Apache License

private byte[] readFrame(ByteBuf in) {
    int remaining = in.readableBytes();
    if (remaining < 4) {
        return null;
    }//from   w  ww . ja va2s .  c  o  m

    int objectSize = in.getInt(0);
    if (objectSize > maxObjectSize) {
        throw new IllegalArgumentException(
                "The encoded object is too big: " + objectSize + " (> " + maxObjectSize + ')');
    }

    if (remaining - 4 >= objectSize) {
        objectSize = in.readInt();
        // RPC object size
        byte[] rpcBytes = new byte[objectSize];
        in.readBytes(rpcBytes);
        return rpcBytes;
    }
    return null;
}

---

From source file:com.doctor.netty5.example.factorial_algorithm.BigIntegerDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    // ? ?F +  +  -> 1 + 4 + ??
    // ??///from   www .j a  v  a  2s  .c  o  m
    if (in.readableBytes() < 5) {
        return; // F + 
    }

    in.markReaderIndex();
    short magicNumber = in.readUnsignedByte();// ?F
    if (magicNumber != 'F') {
        in.resetReaderIndex();
        throw new RuntimeException("magicNumber must be 'F' ");
    }

    // ???
    int dataLength = in.readInt();

    if (in.readableBytes() < dataLength) {
        in.resetReaderIndex();
        return;
    }

    byte[] data = new byte[dataLength];
    in.readBytes(data);
    out.add(new BigInteger(data));
}

---

From source file:com.dwarf.netty.guide.factorial.BigIntegerDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) {
    // Wait until the length prefix is available.
    if (in.readableBytes() < 5) {
        return;/* ww  w .  j  ava2s.  c o  m*/
    }

    in.markReaderIndex();

    // Check the magic number.
    int magicNumber = in.readUnsignedByte();
    if (magicNumber != 'F') {
        in.resetReaderIndex();
        throw new CorruptedFrameException("Invalid magic number: " + magicNumber);
    }

    // Wait until the whole data is available.
    int dataLength = in.readInt();
    if (in.readableBytes() < dataLength) {
        in.resetReaderIndex();
        return;
    }

    // Convert the received data into a new BigInteger.
    byte[] decoded = new byte[dataLength];
    in.readBytes(decoded);

    out.add(new BigInteger(decoded));
}

---

From source file:com.ebay.jetstream.messaging.transport.netty.compression.MessageCompressionHandler.java

License:MIT License

/**
 * Invoked when {@link Channel#write(Object)} is called.
 *///from  w  w  w .  j  av a2  s .  c o m
public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {

    try {

        Attribute<Boolean> attr = ctx.channel().attr(EventProducer.m_eckey);

        Boolean enableCompression = attr.get();

        if ((enableCompression != null) && (enableCompression == true)) {

            ByteBuf chbuf = (ByteBuf) msg;

            int msglen = chbuf.readableBytes();
            ExtendedChannelPromise epromise = (ExtendedChannelPromise) promise;
            epromise.setRawBytes(msglen);

            byte[] compressed = Snappy.rawCompress(chbuf.readBytes(msglen).array(), msglen);

            epromise.setCompressedBytes(compressed.length + 4);
            chbuf.release(); // need to release the original buffer - do I need to check if this this a ref counted buffer

            ByteBuf sendbuf = ctx.alloc().buffer();

            sendbuf.writeInt(compressed.length);
            sendbuf.writeBytes(compressed);

            ctx.write(sendbuf, promise);

            m_totalMessagesCompressed.increment();

        } else {

            ctx.write(msg, promise);

        }

    } catch (Throwable t) {
        m_totalMessagesDropped.increment();
        LOGGER.debug("Failed to compress message - " + t.getLocalizedMessage());

    }

}

---

From source file:com.ebay.jetstream.messaging.transport.netty.compression.MessageDecompressionHandler.java

License:MIT License

@Override
protected Object decode(ChannelHandlerContext ctx, ByteBuf in) throws Exception {

    ByteBuf frame = (ByteBuf) super.decode(ctx, in);

    if (frame == null) {
        return null;
    }//from w ww.j  a  v a 2  s  .  c  om

    byte[] uncompressedbuf;

    if (m_allocBuf)
        uncompressedbuf = new byte[m_tmpBufSz];
    else
        uncompressedbuf = m_tmpBuf;

    int framelen = frame.readableBytes();

    int len = 0;

    try {

        len = Snappy.rawUncompress(frame.readBytes(framelen).array(), 0, framelen, uncompressedbuf, 0);

    } catch (Throwable t) {

        LOGGER.debug("Failed to uncompress - " + t.getLocalizedMessage());

        frame.release();
        return null;
    }

    frame.release();

    ByteBuf buf = ctx.alloc().directBuffer(len);

    return buf.writeBytes(uncompressedbuf, 0, len);

}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• »