Example usage for io.netty.buffer ByteBuf getByte

Introduction

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

Prototype

public abstract byte getByte(int index);

Source Link

Document

Gets a byte at the specified absolute index in this buffer.

Usage

From source file:com.neoba.MessageInterpreter.java

MessageInterpreter(ChannelHandlerContext ctx, ByteBuf buff) {

    VERSION = buff.getByte(0);
    type = buff.getByte(1);//from  w ww .j a  va2s.c om
    size = buff.getInt(2);
    if (type != Constants.PINGPONG && type != Constants.USER_CREATE && type != Constants.USER_LOGIN
            && type != Constants.FACEBOOK_USER_CREATE && type != Constants.FACEBOOK_USER_LOGIN) {
        sessid = new UUID(buff.getLong(14), buff.getLong(6));
        if (isloggedin()) {
            logger.info("Authenticated message from user " + Dsyncserver.usersessions.get(sessid)
                    + " with session " + sessid);
        }
    } else {
        sessid = null;
    }
    this.buff = buff;
    this.ctx = ctx;
}

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From source file:com.netflix.iep.http.NetflixJsonObjectDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    if (state == ST_CORRUPTED) {
        in.skipBytes(in.readableBytes());
        return;//w  w  w. ja va  2 s  . c  o  m
    }

    if (LOGGER.isTraceEnabled()) {
        byte[] bytes = new byte[in.readableBytes()];
        in.getBytes(in.readerIndex(), bytes, 0, in.readableBytes());
        LOGGER.trace("starting [" + in.readerIndex() + ":" + in.readableBytes() + "]:" + new String(bytes));
    }

    // index of next byte to process.
    int len = this.len;
    int wrtIdx = in.writerIndex();

    for (; in.readerIndex() + len < wrtIdx; len++) {
        if (len > maxObjectLength) {
            // buffer size exceeded maxObjectLength; discarding the complete buffer.
            in.skipBytes(in.readableBytes());
            reset();
            throw new TooLongFrameException(
                    "object length exceeds " + maxObjectLength + ": " + len + " bytes discarded");
        }
        byte c = in.getByte(in.readerIndex() + len);
        if (state == ST_DECODING_NORMAL) {
            decodeByte(c, in, in.readerIndex() + len);

            // All opening braces/brackets have been closed. That's enough to conclude
            // that the JSON object/array is complete.
            if (openBraces == 0) {
                ByteBuf json = extractObject(ctx, in, in.readerIndex(), len + 1);
                if (json != null) {
                    out.add(json);
                }

                // The JSON object/array was extracted => discard the bytes from
                // the input buffer.
                in.readerIndex(in.readerIndex() + len + 1);
                len = 0;
                // Reset the object state to get ready for the next JSON object/text
                // coming along the byte stream.
                reset();
                break;
            }
        } else if (state == ST_DECODING_ARRAY_STREAM) {
            if (len == 0 && Character.isWhitespace(c)) {
                in.skipBytes(1);
                len--;
            }
            decodeByte(c, in, in.readerIndex() + len);
            if (!insideString && (openBraces == 1 && c == ',' || openBraces == 0 && c == ']')) {
                ByteBuf json = extractObject(ctx, in, in.readerIndex(), len);
                if (json != null) {
                    out.add(json);
                }

                in.readerIndex(in.readerIndex() + len + 1);
                len = 0;

                if (c == ']') {
                    reset();
                }
                break;
            }
            // JSON object/array detected. Accumulate bytes until all braces/brackets are closed.
        } else if (c == '{' || c == '[') {
            initDecoding(c);

            if (state == ST_DECODING_ARRAY_STREAM) {
                // Discard the array bracket
                in.skipBytes(1);
                len--;
            }
            // Discard leading spaces in front of a JSON object/array.
        } else if (Character.isWhitespace(c)) {
            in.skipBytes(1);
            len--;
        } else {
            state = ST_CORRUPTED;
            throw new CorruptedFrameException("invalid JSON received at byte position "
                    + (in.readerIndex() + len) + ": " + ByteBufUtil.hexDump(in));
        }
    }

    this.len = len;

    if (LOGGER.isTraceEnabled()) {
        byte[] bytes = new byte[in.readableBytes()];
        in.getBytes(in.readerIndex(), bytes, 0, in.readableBytes());
        LOGGER.trace("remainder [" + in.readerIndex() + ":" + in.readableBytes() + "]:" + new String(bytes));
    }
}

---

From source file:com.quavo.osrs.network.protocol.codec.update.encrypt.XOREncryptionEncoder.java

License:Open Source License

@Override
protected void encode(ChannelHandlerContext ctx, XOREncryptionResponse msg, ByteBuf out) throws Exception {
    if (msg.getKey() != 0) {
        for (int i = 0; i < out.writerIndex(); i++) {
            out.setByte(i, out.getByte(i) ^ msg.getKey());
        }/*  www .j  av a  2 s .  c  o m*/
    }

    ctx.pipeline().remove(this);
}

---

From source file:com.shouxun.server.netty.tcp.EchoServerHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {

    ByteBuf buffer = (ByteBuf) msg;

    for (int i = 0; i < buffer.capacity(); i++) {
        byte b = buffer.getByte(i);
        sb.append((char) b);
    }//w w w  .j a v  a2 s  .  c  o  m
    buffer.release();
}

---

From source file:com.spotify.netty.handler.codec.zmtp.ZMTPUtils.java

License:Apache License

/**
 * Create a string from binary data, keeping printable ascii and hex encoding everything else.
 *
 * @param data The data/*  w w  w  .j  a va2 s  . c o  m*/
 * @return A string representation of the data
 */
public static String toString(final ByteBuf data) {
    if (data == null) {
        return null;
    }
    final StringBuilder sb = new StringBuilder();
    for (int i = data.readerIndex(); i < data.writerIndex(); i++) {
        final byte b = data.getByte(i);
        if (b > 31 && b < 127) {
            if (b == '%') {
                sb.append('%');
            }
            sb.append((char) b);
        } else {
            sb.append('%');
            sb.append(String.format("%02X", b));
        }
    }
    return sb.toString();
}

---

From source file:com.spotify.netty4.handler.codec.zmtp.benchmarks.CustomReqRepBenchmark.java

License:Apache License

private static boolean asciiEquals(final AsciiString s, final ByteBuf data, final int size) {
    final int ix = data.readerIndex();
    if (size != s.length()) {
        return false;
    }//from  ww w .  j  a v a  2s .c  om
    for (int i = 0; i < size; i++) {
        char c = (char) data.getByte(ix + i);
        if (c != s.charAt(i)) {
            return false;
        }
    }
    return true;
}

---

From source file:com.spotify.netty4.handler.codec.zmtp.ZMTPMessage.java

License:Apache License

/**
 * Create a human readable string representation of binary data, keeping printable ascii and hex
 * encoding everything else./* w  w  w . j a  va  2s .c o m*/
 *
 * @param data The data
 * @return A human readable string representation of the data.
 */
private static String toString(final ByteBuf data) {
    if (data == null) {
        return null;
    }
    final StringBuilder sb = new StringBuilder();
    for (int i = data.readerIndex(); i < data.writerIndex(); i++) {
        final byte b = data.getByte(i);
        if (b > 31 && b < 127) {
            if (b == '%') {
                sb.append('%');
            }
            sb.append((char) b);
        } else {
            sb.append('%');
            sb.append(String.format("%02X", b));
        }
    }
    return sb.toString();
}

---

From source file:com.streamsets.pipeline.lib.parser.collectd.CollectdParser.java

License:Apache License

/**
 * Parses the value part of the packet where metrics are located
 *
 * @param startOffset beginning offset for this part
 * @param buf         buffered packet//from w  ww.  ja va2s. c  om
 * @return offset after consuming part
 */
private int parseValues(int startOffset, ByteBuf buf) throws OnRecordErrorException {
    int offset = startOffset;
    // N Values
    // For each Value:
    // 1 byte data type code
    int numValues = buf.getUnsignedShort(offset); // 4-5
    offset += 2;

    List<Byte> types = new ArrayList<>(numValues);

    while (numValues-- > 0) {
        types.add(buf.getByte(offset));
        offset += 1;
    }

    for (int i = 0; i < types.size(); i++) {
        Byte type = types.get(i);
        String label = getValueLabel(i, type);
        switch (type) {
        case COUNTER:
            fields.put(label, Field.create(buf.getUnsignedInt(offset)));
            offset += 8;
            break;
        case GAUGE:
            fields.put(label, Field.create(buf.order(ByteOrder.LITTLE_ENDIAN).getDouble(offset)));
            offset += 8;
            break;
        case DERIVE:
            fields.put(label, Field.create(buf.getLong(offset)));
            offset += 8;
            break;
        case ABSOLUTE:
            fields.put(label, Field.create(buf.getUnsignedInt(offset)));
            offset += 8;
            break;
        default:
            // error
            throw new OnRecordErrorException(Errors.COLLECTD_01, type);
        }
    }
    return offset;
}

---

From source file:com.streamsets.pipeline.lib.parser.net.DelimitedLengthFieldBasedFrameDecoder.java

License:Apache License

/**
 * Returns the number of bytes between the readerIndex of the haystack and
 * the first needle found in the haystack.  -1 is returned if no needle is
 * found in the haystack.//  w w  w .java 2  s  . co m
 */
private static int indexOf(ByteBuf haystack, ByteBuf needle) {
    for (int i = haystack.readerIndex(); i < haystack.writerIndex(); i++) {
        int haystackIndex = i;
        int needleIndex;
        for (needleIndex = 0; needleIndex < needle.capacity(); needleIndex++) {
            if (haystack.getByte(haystackIndex) != needle.getByte(needleIndex)) {
                break;
            } else {
                haystackIndex++;
                if (haystackIndex == haystack.writerIndex() && needleIndex != needle.capacity() - 1) {
                    return -1;
                }
            }
        }

        if (needleIndex == needle.capacity()) {
            // Found the needle from the haystack!
            return i - haystack.readerIndex();
        }
    }
    return -1;
}

---

From source file:com.talent.mysql.packet.request.AuthPacket.java

License:Open Source License

public void decodeBody(ByteBuf _byteBuf) {
    byte[] bs = new byte[] { -117, -93, 2, 0, 0, 0, 0, 64, 33, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
            0, 0, 0, 0, 0, 0, 0, 114, 111, 111, 116, 0, 20, -19, -111, -3, 39, -46, -116, -128, -44, -112, -26,
            -48, 42, 70, -85, 8, 83, 83, 100, 103, 68, 116, 97, 108, 101, 110, 116, 95, 98, 97, 115, 101, 119,
            101, 98, 50, 48, 49, 0 };//from   w  w w  .  j  av a2s.  co  m
    ByteBuf byteBuf = Unpooled.buffer(bs.length);
    byteBuf = byteBuf.order(ByteOrder.LITTLE_ENDIAN);
    byteBuf.setBytes(0, bs, 0, bs.length);

    int _index = byteBuf.readerIndex();
    int index = _index;

    clientFlags = byteBuf.getInt(index); //172939
    index += 4;

    maxPacketSize = byteBuf.getInt(index); //1073741824
    index += 4;

    charsetIndex = byteBuf.getByte(index); //33
    index += 1;

    index += extra.length;

    int len = 0;
    while (byteBuf.getByte(index + len) != 0) {
        len++;
    }
    user = new byte[len];
    byteBuf.getBytes(index, user, 0, len);
    index += len;
    index++;

    passwordLen = byteBuf.getByte(index);
    index += 1;

    password = new byte[passwordLen];
    byteBuf.getBytes(index, password, 0, passwordLen);

    len = 0;
    while (byteBuf.getByte(index + len) != 0) {
        len++;
    }
    database = new byte[len];
    byteBuf.getBytes(index, database, 0, len);
    index += len;
    index++;

}

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