Example usage for io.netty.buffer ByteBuf indexOf

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

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Introduction

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

Prototype

public abstract int indexOf(int fromIndex, int toIndex, byte value);

Source Link

Document

Locates the first occurrence of the specified value in this buffer.

Usage

From source file:com.github.lburgazzoli.quickfixj.transport.netty.codec.NettyMessageDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    if (m_msgLength == -1) {
        if (in.readableBytes() >= FIXCodecHelper.MSG_MIN_BYTES) {
            int ridx = in.readerIndex();
            int bssohidx = in.indexOf(ridx, ridx + 12, FIXCodecHelper.BYTE_SOH);
            int blsohidx = in.indexOf(ridx + 12, ridx + 20, FIXCodecHelper.BYTE_SOH);

            // check the existence of:
            // - BeginString 8=
            // - BodyLength  9=
            if (in.getByte(ridx) == FIXCodecHelper.BYTE_BEGIN_STRING
                    && in.getByte(ridx + 1) == FIXCodecHelper.BYTE_EQUALS
                    && in.getByte(bssohidx + 1) == FIXCodecHelper.BYTE_BODY_LENGTH
                    && in.getByte(bssohidx + 2) == FIXCodecHelper.BYTE_EQUALS) {

                int bodyLength = 0;
                for (int i = bssohidx + 3; i < blsohidx; i++) {
                    bodyLength *= 10;/*from ww w.  j av  a2s.com*/
                    bodyLength += (in.getByte(i) - '0');
                }

                m_msgLength = 1 + bodyLength + (blsohidx - ridx) + FIXCodecHelper.MSG_CSUM_LEN;
            } else {
                throw new Error("Unexpected state (header)");
            }
        }
    }

    if (m_msgLength != -1 && in.readableBytes() >= m_msgLength) {
        if (in.readableBytes() >= m_msgLength) {
            byte[] rv = new byte[m_msgLength];
            in.readBytes(rv);

            //TODO: validate checksum
            out.add(rv);

            m_msgLength = -1;
        } else {
            throw new Error("Unexpected state (body)");
        }
    }
}

From source file:com.whizzosoftware.hobson.radiora.api.codec.RadioRaFrameDecoder.java

License:Open Source License

@Override
protected Object decode(ChannelHandlerContext ctx, ByteBuf buffer) throws Exception {
    logger.trace("decode: {}", buffer.toString(CharsetUtil.UTF_8));

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

    if (frame != null) {
        // if we receive a single byte frame, it should be a '!'
        if (frame.readableBytes() == 1) {
            byte b = frame.readByte();
            if (b == '!') {
                return null;
            } else {
                throw new CorruptedFrameException("Unexpected single byte frame");
            }//from w  w  w  .  j  av  a 2  s  . c  o  m
            // otherwise, we assume it's a command frame
        } else {
            int ix = frame.indexOf(frame.readerIndex(), frame.writerIndex(), (byte) ',');
            if (ix > 0) {
                String cmdName = frame.slice(0, ix).toString(CharsetUtil.UTF_8);

                switch (cmdName) {
                case ZoneMap.TYPE:
                    if (frame.readableBytes() >= ix + 33) {
                        return new ZoneMap(frame.slice(ix + 1, 32).toString(CharsetUtil.UTF_8));
                    } else {
                        throw new CorruptedFrameException("Received invalid zone map size");
                    }

                case LocalZoneChange.TYPE:
                    if (frame.readableBytes() >= ix + 3) {
                        String sZoneNum = frame.slice(ix + 1, 2).toString(CharsetUtil.UTF_8);
                        if (frame.readableBytes() >= ix + 7) {
                            String state = frame.slice(ix + 4, 3).toString(CharsetUtil.UTF_8).trim();
                            try {
                                return new LocalZoneChange(Integer.parseInt(sZoneNum),
                                        LocalZoneChange.State.valueOf(state));
                            } catch (IllegalArgumentException iae) {
                                throw new CorruptedFrameException("Invalid LZC state string");
                            }
                        } else {
                            throw new CorruptedFrameException("Invalid LZC size (state)");
                        }
                    } else {
                        throw new CorruptedFrameException("Invalid LZC size (zoneNum)");
                    }

                case LEDMap.TYPE:
                    if (frame.readableBytes() >= ix + 16) {
                        return new LEDMap(frame.slice(ix + 1, 15).toString(CharsetUtil.UTF_8));
                    } else {
                        throw new CorruptedFrameException("Invalid LED map size");
                    }

                default:
                    throw new DecoderException("Unrecognized command: " + cmdName);
                }
            } else {
                throw new CorruptedFrameException("Invalid frame format (no comma)");
            }
        }
    } else {
        return null;
    }
}

From source file:io.nodyn.http.HTTPParser.java

License:Apache License

protected boolean readRequestLine() {
    ByteBuf line = readLine();
    if (line == null) {
        return false;
    }/*from w w  w .j  a  v  a2 s .  co m*/

    int space = line.indexOf(line.readerIndex(), line.readerIndex() + line.readableBytes(), (byte) ' ');
    if (space < 0) {
        setError(Error.INVALID_METHOD);
        return false;
    }

    int len = space - line.readerIndex();

    ByteBuf methodBuf = line.readSlice(len);

    String methodName = methodBuf.toString(UTF8);
    for (int i = 0; i < METHODS.length; ++i) {
        if (METHODS[i].equals(methodName)) {
            this.method = i;
            break;
        }
    }

    if (this.method == null) {
        setError(Error.INVALID_METHOD);
        return false;
    }

    if ("CONNECT".equals(methodName)) {
        this.upgrade = true;
    }

    // skip the space
    line.readByte();

    space = line.indexOf(line.readerIndex(), line.readerIndex() + line.readableBytes(), (byte) ' ');

    ByteBuf urlBuf = null;
    ByteBuf versionBuf = null;
    if (space < 0) {
        // HTTP/1.0
        urlBuf = line.readSlice(line.readableBytes());
    } else {
        len = space - line.readerIndex();
        urlBuf = line.readSlice(len);
        versionBuf = line.readSlice(line.readableBytes());
    }

    this.url = urlBuf.toString(UTF8).trim();

    if (versionBuf != null) {
        if (!readVersion(versionBuf)) {
            setError(Error.INVALID_VERSION);
            return false;
        }
    } else {
        this.versionMajor = 1;
        this.versionMinor = 0;
    }
    return true;
}

From source file:io.nodyn.http.HTTPParser.java

License:Apache License

protected boolean readStatusLine() {
    ByteBuf line = readLine();

    if (line == null) {
        return false;
    }/*w  w  w . j ava2  s  .c  o  m*/

    int space = line.indexOf(line.readerIndex(), line.readerIndex() + line.readableBytes(), (byte) ' ');

    if (space < 0) {
        setError(Error.INVALID_VERSION);
        return false;
    }

    int len = space - line.readerIndex();

    ByteBuf versionBuf = line.readSlice(len);

    if (!readVersion(versionBuf)) {
        setError(Error.INVALID_VERSION);
        return false;
    }

    // skip space
    line.readByte();

    space = line.indexOf(line.readerIndex(), line.readerIndex() + line.readableBytes(), (byte) ' ');

    if (space < 0) {
        setError(Error.INVALID_STATUS);
        return false;
    }

    len = space - line.readerIndex();

    ByteBuf statusBuf = line.readSlice(len);

    int status = -1;

    try {
        status = Integer.parseInt(statusBuf.toString(UTF8));
    } catch (NumberFormatException e) {
        setError(Error.INVALID_STATUS);
        return false;
    }

    if (status > 999 || status < 100) {
        setError(Error.INVALID_STATUS);
        return false;
    }

    this.statusCode = status;

    // skip space
    line.readByte();

    ByteBuf messageBuf = line.readSlice(line.readableBytes());

    this.statusMessage = messageBuf.toString(UTF8).trim();

    return true;
}

From source file:io.nodyn.http.HTTPParser.java

License:Apache License

protected boolean readVersion(ByteBuf versionBuf) {
    int dotLoc = versionBuf.indexOf(versionBuf.readerIndex(),
            versionBuf.readerIndex() + versionBuf.readableBytes(), (byte) '.');
    if (dotLoc < 0) {
        return false;
    }//  w  w  w  . j a  v  a2 s. c  o m

    char majorChar = (char) versionBuf.getByte(dotLoc - 1);
    char minorChar = (char) versionBuf.getByte(dotLoc + 1);
    try {
        this.versionMajor = Integer.parseInt("" + majorChar);
        this.versionMinor = Integer.parseInt("" + minorChar);
    } catch (NumberFormatException e) {
        return false;
    }
    return true;
}

From source file:io.nodyn.http.HTTPParser.java

License:Apache License

protected boolean readHeader(ByteBuf line, List<String> target, boolean analyze) {
    int colonLoc = line.indexOf(line.readerIndex(), line.readerIndex() + line.readableBytes(), (byte) ':');

    if (colonLoc < 0) {
        // maybe it's a continued header
        if (line.readableBytes() > 1) {
            char c = (char) line.getByte(0);
            if (c == ' ' || c == '\t') {
                // it IS a continued header value
                int lastIndex = this.headers.size() - 1;
                String val = this.headers.get(lastIndex);
                val = val + " " + line.toString(ASCII).trim();
                this.headers.set(lastIndex, val);
                return true;
            }/*  www .  j ava 2  s .com*/
        }
        return false;
    }

    int len = colonLoc - line.readerIndex();
    ByteBuf keyBuf = line.readSlice(len);

    // skip colon
    line.readByte();

    ByteBuf valueBuf = line.readSlice(line.readableBytes());

    String key = keyBuf.toString(UTF8).trim();
    String value = valueBuf.toString(UTF8).trim();

    target.add(key);
    target.add(value);

    if (analyze) {
        return analyzeHeader(key.toLowerCase(), value);
    }

    return true;
}

From source file:io.reactiverse.pgclient.impl.codec.DataTypeCodec.java

License:Apache License

private static Point textDecodePOINT(int index, int len, ByteBuf buff) {
    // Point representation: (x,y)
    int idx = ++index;
    int s = buff.indexOf(idx, idx + len, (byte) ',');
    int t = s - idx;
    double x = textDecodeFLOAT8(idx, t, buff);
    double y = textDecodeFLOAT8(s + 1, len - t - 3, buff);
    return new Point(x, y);
}

From source file:io.reactiverse.pgclient.impl.codec.DataTypeCodec.java

License:Apache License

private static Line textDecodeLine(int index, int len, ByteBuf buff) {
    // Line representation: {a,b,c}
    int idxOfFirstSeparator = buff.indexOf(index, index + len, (byte) ',');
    int idxOfLastSeparator = buff.indexOf(index + len, index, (byte) ',');

    int idx = index + 1;
    double a = textDecodeFLOAT8(idx, idxOfFirstSeparator - idx, buff);
    double b = textDecodeFLOAT8(idxOfFirstSeparator + 1, idxOfLastSeparator - idxOfFirstSeparator - 1, buff);
    double c = textDecodeFLOAT8(idxOfLastSeparator + 1, index + len - idxOfLastSeparator - 2, buff);
    return new Line(a, b, c);
}

From source file:io.reactiverse.pgclient.impl.codec.DataTypeCodec.java

License:Apache License

private static LineSegment textDecodeLseg(int index, int len, ByteBuf buff) {
    // Lseg representation: [p1,p2]
    int idxOfPointsSeparator = buff.indexOf(index, index + len, (byte) ')') + 1;
    int lenOfP1 = idxOfPointsSeparator - index - 1;
    Point p1 = textDecodePOINT(index + 1, lenOfP1, buff);
    Point p2 = textDecodePOINT(idxOfPointsSeparator + 1, len - lenOfP1 - 3, buff);
    return new LineSegment(p1, p2);
}

From source file:io.reactiverse.pgclient.impl.codec.DataTypeCodec.java

License:Apache License

private static Box textDecodeBox(int index, int len, ByteBuf buff) {
    // Box representation: p1,p2
    int idxOfPointsSeparator = buff.indexOf(index, index + len, (byte) ')') + 1;
    int lenOfUpperRightCornerPoint = idxOfPointsSeparator - index;
    Point upperRightCorner = textDecodePOINT(index, lenOfUpperRightCornerPoint, buff);
    Point lowerLeftCorner = textDecodePOINT(idxOfPointsSeparator + 1, len - lenOfUpperRightCornerPoint - 1,
            buff);/* w  w w  .j  a  va2 s . com*/
    return new Box(upperRightCorner, lowerLeftCorner);
}