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: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;
            }/* ww w  . j  a  va 2s .co  m*/
        }
        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 Object defaultDecodeText(int index, int len, ByteBuf buff) {
    // decode unknown text values as text or as an array if it begins with `{`
    if (len > 1 && buff.getByte(index) == '{') {
        return textDecodeArray(STRING_ARRAY_FACTORY, DataType.TEXT, index, len, buff);
    }//from w ww  .  ja va  2s. c  o m
    return textdecodeTEXT(index, len, buff);
}

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

License:Apache License

private static Boolean textDecodeBOOL(int index, int len, ByteBuf buff) {
    if (buff.getByte(index) == 't') {
        return Boolean.TRUE;
    } else {//from   w  w w .ja  v  a  2s  .  c o  m
        return Boolean.FALSE;
    }
}

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

License:Apache License

private static Path textDecodePath(int index, int len, ByteBuf buff) {
    // Path representation: (p1,p2...pn) or [p1,p2...pn]
    byte first = buff.getByte(index);
    byte last = buff.getByte(index + len - 1);
    boolean isOpen;
    if (first == '(' && last == ')') {
        isOpen = false;/*from  www  .ja  v  a2  s.  c  om*/
    } else if (first == '[' && last == ']') {
        isOpen = true;
    } else {
        throw new DecoderException("Decoding Path is in wrong syntax");
    }
    List<Point> points = textDecodeMultiplePoints(index + 1, len - 2, buff);
    return new Path(isOpen, points);
}

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

License:Apache License

private static Path binaryDecodePath(int index, int len, ByteBuf buff) {
    byte first = buff.getByte(index);
    boolean isOpen;
    if (first == 0) {
        isOpen = true;//from w  w w . j a  v  a  2  s.  co m
    } else if (first == 1) {
        isOpen = false;
    } else {
        throw new DecoderException("Decoding Path exception");
    }
    int idx = ++index;
    int numberOfPoints = binaryDecodeINT4(idx, 4, buff);
    idx += 4;
    List<Point> points = new ArrayList<>();
    // maybe we need some check?
    for (int i = 0; i < numberOfPoints; i++) {
        points.add(binaryDecodePoint(idx, 16, buff));
        idx += 16;
    }
    return new Path(isOpen, points);
}

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

License:Apache License

/**
 * Decode the specified {@code buff} formatted as a decimal string starting at the readable index
 * with the specified {@code length} to a long.
 *
 * @param index the hex string index//from  w ww  .ja va2  s.com
 * @param len the hex string length
 * @param buff the byte buff to read from
 * @return the decoded value as a long
 */
private static long decodeDecStringToLong(int index, int len, ByteBuf buff) {
    long value = 0;
    if (len > 0) {
        int to = index + len;
        boolean neg = false;
        if (buff.getByte(index) == '-') {
            neg = true;
            index++;
        }
        while (index < to) {
            byte ch = buff.getByte(index++);
            byte nibble = (byte) (ch - '0');
            value = value * 10 + nibble;
        }
        if (neg) {
            value = -value;
        }
    }
    return value;
}

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

License:Apache License

/**
 * Decode the specified {@code buff} formatted as an hex string starting at the buffer readable index
 * with the specified {@code length} to a byte array.
 *
 * @param len the hex string length/*from   www.  j  a  v a 2 s  .  c o m*/
 * @param buff the byte buff to read from
 * @return the decoded value as a byte array
 */
private static byte[] decodeHexStringToBytes(int index, int len, ByteBuf buff) {
    len = len >> 1;
    byte[] bytes = new byte[len];
    for (int i = 0; i < len; i++) {
        byte b0 = decodeHexChar(buff.getByte(index++));
        byte b1 = decodeHexChar(buff.getByte(index++));
        bytes[i] = (byte) (b0 * 16 + b1);
    }
    return bytes;
}

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

License:Apache License

private static <T> T[] textDecodeArray(IntFunction<T[]> supplier, DataType type, int index, int len,
        ByteBuf buff) {
    List<T> list = new ArrayList<>();
    int from = index + 1; // Set index after '{'
    int to = index + len - 1; // Set index before '}'
    while (from < to) {
        // Escaped content ?
        boolean escaped = buff.getByte(from) == '"';
        int idx;/*  w  ww. j  ava2  s  . co m*/
        if (escaped) {
            idx = buff.forEachByte(from, to - from, new UTF8StringEndDetector());
            idx = buff.indexOf(idx, to, (byte) ','); // SEE iF WE CAN GET RID oF IT
        } else {
            idx = buff.indexOf(from, to, (byte) ',');
        }
        if (idx == -1) {
            idx = to;
        }
        T elt = textDecodeArrayElement(type, from, idx - from, buff);
        list.add(elt);
        from = idx + 1;
    }
    return list.toArray(supplier.apply(list.size()));
}

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

License:Apache License

private static <T> T textDecodeArrayElement(DataType type, int index, int len, ByteBuf buff) {
    if (len == 4 && Character.toUpperCase(buff.getByte(index)) == 'N'
            && Character.toUpperCase(buff.getByte(index + 1)) == 'U'
            && Character.toUpperCase(buff.getByte(index + 2)) == 'L'
            && Character.toUpperCase(buff.getByte(index + 3)) == 'L') {
        return null;
    } else {//w w  w. j a  v a2s  . com
        boolean escaped = buff.getByte(index) == '"';
        if (escaped) {
            // Some escaping - improve that later...
            String s = buff.toString(index + 1, len - 2, StandardCharsets.UTF_8);
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < s.length(); i++) {
                char c = s.charAt(i);
                if (c == '\\') {
                    c = s.charAt(++i);
                }
                sb.append(c);
            }
            buff = Unpooled.copiedBuffer(sb, StandardCharsets.UTF_8);
            index = 0;
            len = buff.readableBytes();
        }
        return (T) decodeText(type, index, len, buff);
    }
}

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();//  w  ww .j  a  v a 2 s.  c o  m
    switch (b) {
    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;
    }
}