Example usage for io.netty.buffer ByteBuf readByte

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

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Introduction

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

Prototype

public abstract byte readByte();

Source Link

Document

Gets a byte at the current readerIndex and increases the readerIndex by 1 in this buffer.

Usage

From source file:appeng.util.item.AEFluidStack.java

License:Open Source License

public static IAEFluidStack loadFluidStackFromPacket(final ByteBuf data) throws IOException {
    final byte mask = data.readByte();
    // byte PriorityType = (byte) (mask & 0x03);
    final byte stackType = (byte) ((mask & 0x0C) >> 2);
    final byte countReqType = (byte) ((mask & 0x30) >> 4);
    final boolean isCraftable = (mask & 0x40) > 0;
    final boolean hasTagCompound = (mask & 0x80) > 0;

    // don't send this...
    final NBTTagCompound d = new NBTTagCompound();

    final byte len2 = data.readByte();
    final byte[] name = new byte[len2];
    data.readBytes(name, 0, len2);/* w  w  w.ja  v  a 2s  .c om*/

    d.setString("FluidName", new String(name, "UTF-8"));
    d.setByte("Count", (byte) 0);

    if (hasTagCompound) {
        final int len = data.readInt();

        final byte[] bd = new byte[len];
        data.readBytes(bd);

        final DataInputStream di = new DataInputStream(new ByteArrayInputStream(bd));
        d.setTag("tag", CompressedStreamTools.read(di));
    }

    // long priority = getPacketValue( PriorityType, data );
    final long stackSize = getPacketValue(stackType, data);
    final long countRequestable = getPacketValue(countReqType, data);

    final FluidStack fluidStack = FluidStack.loadFluidStackFromNBT(d);
    if (fluidStack == null) {
        return null;
    }

    final AEFluidStack fluid = AEFluidStack.create(fluidStack);
    // fluid.priority = (int) priority;
    fluid.setStackSize(stackSize);
    fluid.setCountRequestable(countRequestable);
    fluid.setCraftable(isCraftable);
    return fluid;
}

From source file:appeng.util.item.AEItemStack.java

License:Open Source License

public static IAEItemStack loadItemStackFromPacket(final ByteBuf data) throws IOException {
    final byte mask = data.readByte();
    // byte PriorityType = (byte) (mask & 0x03);
    final byte stackType = (byte) ((mask & 0x0C) >> 2);
    final byte countReqType = (byte) ((mask & 0x30) >> 4);
    final boolean isCraftable = (mask & 0x40) > 0;
    final boolean hasTagCompound = (mask & 0x80) > 0;

    // don't send this...
    final NBTTagCompound d = new NBTTagCompound();

    // For some insane reason, Vanilla can only parse numeric item ids if they are strings
    short itemNumericId = data.readShort();
    d.setString("id", String.valueOf(itemNumericId));
    d.setShort("Damage", data.readShort());
    d.setByte("Count", (byte) 0);

    if (hasTagCompound) {
        final int len = data.readInt();

        final byte[] bd = new byte[len];
        data.readBytes(bd);//from   www  .  j  a v a 2s. c om

        final ByteArrayInputStream di = new ByteArrayInputStream(bd);
        d.setTag("tag", CompressedStreamTools.read(new DataInputStream(di)));
    }

    // long priority = getPacketValue( PriorityType, data );
    final long stackSize = getPacketValue(stackType, data);
    final long countRequestable = getPacketValue(countReqType, data);

    final ItemStack itemstack = ItemStack.loadItemStackFromNBT(d);
    if (itemstack == null) {
        return null;
    }

    final AEItemStack item = AEItemStack.create(itemstack);
    // item.priority = (int) priority;
    item.setStackSize(stackSize);
    item.setCountRequestable(countRequestable);
    item.setCraftable(isCraftable);
    return item;
}

From source file:appeng.util.item.AEStack.java

License:Open Source License

static long getPacketValue(final byte type, final ByteBuf tag) {
    if (type == 0) {
        long l = tag.readByte();
        l -= Byte.MIN_VALUE;/*  w  w  w  .j av a 2 s  . c  om*/
        return l;
    } else if (type == 1) {
        long l = tag.readShort();
        l -= Short.MIN_VALUE;
        return l;
    } else if (type == 2) {
        long l = tag.readInt();
        l -= Integer.MIN_VALUE;
        return l;
    }

    return tag.readLong();
}

From source file:at.yawk.dbus.protocol.codec.MessageHeaderCodec.java

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf rawBuf, List<Object> out) throws Exception {
    if (toRead != 0) {
        if (rawBuf.readableBytes() < toRead) {
            return;
        }//from  w ww  .j  a  v  a  2 s . c o  m
        ByteBuf slice = rawBuf.slice().order(byteOrder);
        slice.writerIndex(slice.readerIndex() + toRead);
        slice.retain();
        AlignableByteBuf decoding = AlignableByteBuf.decoding(slice);
        log.trace("INBOUND {}", decoding);
        out.add(decoding);

        rawBuf.readerIndex(rawBuf.readerIndex() + toRead);
        toRead = 0;
    }

    if (rawBuf.readableBytes() < MIN_HEADER_LENGTH) {
        return;
    }

    rawBuf.markReaderIndex();
    byte endianness = rawBuf.readByte();
    ByteOrder order;
    switch (endianness) {
    case 'l':
        order = ByteOrder.LITTLE_ENDIAN;
        break;
    case 'B':
        order = ByteOrder.BIG_ENDIAN;
        break;
    default:
        throw new DecoderException("Unknown byte order byte " + endianness);
    }

    AlignableByteBuf buf = AlignableByteBuf.decoding(rawBuf.resetReaderIndex().order(order));

    buf.getBuffer().markReaderIndex();
    buf.readByte(); // skip endianness byte we read above

    @Nullable
    MessageType type = MessageType.byId(buf.readByte());
    byte flags = buf.readByte();
    byte majorProtocolVersion = buf.readByte();
    if (majorProtocolVersion != PROTOCOL_VERSION) {
        throw new DecoderException("Unsupported major protocol version " + majorProtocolVersion);
    }
    long bodyLength = buf.readUnsignedInt();
    int serial = buf.readInt();

    MessageHeader header = new MessageHeader();
    header.setByteOrder(order);
    header.setMessageType(type);
    header.setNoReplyExpected((flags & NO_REPLY_EXPECTED) != 0);
    header.setNoAutoStart((flags & NO_AUTO_START) != 0);
    header.setAllowInteractiveAuthorization((flags & ALLOW_INTERACTIVE_AUTHORIZATION) != 0);
    header.setMajorProtocolVersion(majorProtocolVersion);
    header.setMessageBodyLength(bodyLength);
    header.setSerial(serial);
    header.setHeaderFields(new EnumMap<>(HeaderField.class));

    ArrayObject headers = (ArrayObject) tryDecode(HEADER_FIELD_LIST_TYPE, buf);
    if (headers == null) {
        // not enough data
        buf.getBuffer().resetReaderIndex();
        return;
    }
    for (DbusObject struct : headers.getValues()) {
        HeaderField field = HeaderField.byId(struct.get(0).byteValue());
        if (field != null) {
            DbusObject value = struct.get(1).getValue();
            if (!value.getType().equals(field.getType())) {
                throw new DecoderException("Invalid header type on " + field + ": got " + value.getType()
                        + " but expected " + field.getType());
            }
            header.getHeaderFields().put(field, value);
        }
    }

    if (type != null) {
        checkRequiredHeaderFieldsPresent(header);
    }

    if (!buf.canAlignRead(8)) {
        buf.getBuffer().resetReaderIndex();
        return;
    }
    buf.alignRead(8);

    toRead = Math.toIntExact(header.getMessageBodyLength());
    byteOrder = order;
    out.add(header);
}

From source file:at.yawk.votifier.LineSplitter.java

License:Mozilla Public License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    in.markReaderIndex();/*  w ww . j a  v a  2s. c om*/
    int lineLength = 0;
    boolean found = false;
    while (in.isReadable()) {
        if (in.readByte() == '\n') {
            found = true;
            break;
        }
        lineLength++;
    }
    in.resetReaderIndex();
    if (found) {
        byte[] line = new byte[lineLength];
        in.readBytes(line);
        in.readByte(); // newline
        out.add(new String(line, StandardCharsets.UTF_8));
    }
}

From source file:blazingcache.network.netty.DodoMessageUtils.java

License:Apache License

private static Object readEncodedSimpleValue(ByteBuf encoded) {
    byte _opcode = encoded.readByte();
    switch (_opcode) {
    case OPCODE_NULL_VALUE:
        return null;
    case OPCODE_STRING_VALUE:
        return readUTF8String(encoded);
    case OPCODE_INT_VALUE:
        return encoded.readInt();
    case OPCODE_MAP_VALUE: {
        int len = encoded.readInt();
        Map<Object, Object> ret = new HashMap<>();
        for (int i = 0; i < len; i++) {
            Object mapkey = readEncodedSimpleValue(encoded);
            Object value = readEncodedSimpleValue(encoded);
            ret.put(mapkey, value);// ww  w.j a v  a 2 s. com
        }
        return ret;
    }
    case OPCODE_SET_VALUE: {
        int len = encoded.readInt();
        Set<Object> ret = new HashSet<>();
        for (int i = 0; i < len; i++) {
            Object o = readEncodedSimpleValue(encoded);
            ret.add(o);
        }
        return ret;
    }
    case OPCODE_LIST_VALUE: {
        int len = encoded.readInt();
        List<Object> ret = new ArrayList<>(len);
        for (int i = 0; i < len; i++) {
            Object o = readEncodedSimpleValue(encoded);
            ret.add(o);
        }
        return ret;
    }
    case OPCODE_BYTEARRAY_VALUE: {
        int len = encoded.readInt();
        byte[] ret = new byte[len];
        encoded.readBytes(ret);
        return ret;
    }
    case OPCODE_LONG_VALUE:
        return encoded.readLong();
    default:
        throw new RuntimeException("invalid opcode: " + _opcode);
    }
}

From source file:blazingcache.network.netty.DodoMessageUtils.java

License:Apache License

public static Message decodeMessage(ByteBuf encoded) {
    byte version = encoded.readByte();
    if (version != VERSION) {
        throw new RuntimeException("bad protocol version " + version);
    }/* ww  w. j ava2 s  .co m*/
    int type = encoded.readInt();
    String messageId = readUTF8String(encoded);
    String replyMessageId = null;
    String workerProcessId = null;
    Map<String, Object> params = new HashMap<>();
    while (encoded.isReadable()) {
        byte opcode = encoded.readByte();
        switch (opcode) {
        case OPCODE_REPLYMESSAGEID:
            replyMessageId = readUTF8String(encoded);
            break;
        case OPCODE_WORKERPROCESSID:
            workerProcessId = readUTF8String(encoded);
            break;
        case OPCODE_PARAMETERS:
            int size = encoded.readInt();
            for (int i = 0; i < size; i++) {
                Object key = readEncodedSimpleValue(encoded);
                Object value = readEncodedSimpleValue(encoded);
                params.put((String) key, value);
            }
            break;
        default:
            throw new RuntimeException("invalid opcode: " + opcode);
        }
    }
    Message m = new Message(workerProcessId, type, params);
    if (replyMessageId != null) {
        m.replyMessageId = replyMessageId;
    }
    m.messageId = messageId;
    return m;

}

From source file:blazingcache.network.netty.MessageUtils.java

License:Apache License

private static Object readEncodedSimpleValue(ByteBuf encoded) {
    byte _opcode = encoded.readByte();
    switch (_opcode) {
    case OPCODE_NULL_VALUE:
        return null;
    case OPCODE_STRING_VALUE:
        return RawString.of(readUTF8String(encoded));
    case OPCODE_INT_VALUE:
        return encoded.readInt();
    case OPCODE_MAP_VALUE: {
        int len = encoded.readInt();
        Map<Object, Object> ret = new HashMap<>();
        for (int i = 0; i < len; i++) {
            Object mapkey = readEncodedSimpleValue(encoded);
            Object value = readEncodedSimpleValue(encoded);
            ret.put(mapkey, value);/*  w w w  .j av a 2  s.co  m*/
        }
        return ret;
    }
    case OPCODE_SET_VALUE: {
        int len = encoded.readInt();
        Set<Object> ret = new HashSet<>();
        for (int i = 0; i < len; i++) {
            Object o = readEncodedSimpleValue(encoded);
            ret.add(o);
        }
        return ret;
    }
    case OPCODE_LIST_VALUE: {
        int len = encoded.readInt();
        List<Object> ret = new ArrayList<>(len);
        for (int i = 0; i < len; i++) {
            Object o = readEncodedSimpleValue(encoded);
            ret.add(o);
        }
        return ret;
    }
    case OPCODE_BYTEARRAY_VALUE: {
        int len = encoded.readInt();
        byte[] ret = new byte[len];
        encoded.readBytes(ret);
        return ret;
    }
    case OPCODE_LONG_VALUE:
        return encoded.readLong();
    default:
        throw new RuntimeException("invalid opcode: " + _opcode);
    }
}

From source file:blazingcache.network.netty.MessageUtils.java

License:Apache License

public static Message decodeMessage(ByteBuf encoded) {
    byte version = encoded.readByte();
    if (version != VERSION) {
        throw new RuntimeException("bad protocol version " + version);
    }/*w w w .j a  v  a 2  s .c o m*/
    int type = encoded.readInt();
    String messageId = readUTF8String(encoded);
    String replyMessageId = null;
    String workerProcessId = null;
    Map<String, Object> params = new HashMap<>();
    while (encoded.isReadable()) {
        byte opcode = encoded.readByte();
        switch (opcode) {
        case OPCODE_REPLYMESSAGEID:
            replyMessageId = readUTF8String(encoded);
            break;
        case OPCODE_WORKERPROCESSID:
            workerProcessId = readUTF8String(encoded);
            break;
        case OPCODE_PARAMETERS:
            int size = encoded.readInt();
            for (int i = 0; i < size; i++) {
                Object key = readEncodedSimpleValue(encoded);
                Object value = readEncodedSimpleValue(encoded);
                params.put(((RawString) key).toString(), value);
            }
            break;
        default:
            throw new RuntimeException("invalid opcode: " + opcode);
        }
    }
    Message m = new Message(workerProcessId, type, params);
    if (replyMessageId != null) {
        m.replyMessageId = replyMessageId;
    }
    m.messageId = messageId;
    return m;

}

From source file:blusunrize.immersiveengineering.common.util.network.MessageSpeedloaderSync.java

@Override
public void fromBytes(ByteBuf buf) {
    slot = buf.readByte();
    hand = EnumHand.values()[buf.readByte()];
}