Example usage for io.netty.buffer ByteBuf setIndex

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

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Introduction

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

Prototype

public abstract ByteBuf setIndex(int readerIndex, int writerIndex);

Source Link

Document

Sets the readerIndex and writerIndex of this buffer in one shot.

Usage

From source file:dorkbox.network.pipeline.tcp.KryoEncoder.java

License:Apache License

@Override
protected void encode(final ChannelHandlerContext context, final Object msg, final ByteBuf out)
        throws Exception {
    // we don't necessarily start at 0!!
    // START at index = 4. This is to make room for the integer placed by the frameEncoder for TCP.
    int startIndex = out.writerIndex() + reservedLengthIndex;

    if (msg != null) {
        out.writerIndex(startIndex);//from   w ww.  j  a  v a  2 s .  c  o m

        try {
            writeObject(this.serializationManager, context, msg, out);
            int index = out.writerIndex();

            // now set the frame length
            // (reservedLengthLength) 4 is the reserved space for the integer.
            int length = index - startIndex;

            // specify the header.
            int lengthOfTheLength = OptimizeUtilsByteBuf.intLength(length, true);

            // make it so the location we write out our length is aligned to the end.
            int indexForLength = startIndex - lengthOfTheLength;
            out.writerIndex(indexForLength);

            // do the optimized length thing!
            OptimizeUtilsByteBuf.writeInt(out, length, true);

            // newIndex is actually where we want to start reading the data as well when written to the socket
            out.setIndex(indexForLength, index);
        } catch (Exception ex) {
            context.fireExceptionCaught(
                    new IOException("Unable to serialize object of type: " + msg.getClass().getName(), ex));
        }
    }
}

From source file:io.github.stormcloud_dev.stormcloud.seralization.RORObjectDecoder.java

License:Apache License

private Object readNextObject(ByteBuf buf) {

    if (buf.readableBytes() < 12) {
        return null;
    }/*from www . jav  a 2  s .  c  o  m*/

    byte[] header = new byte[8];
    buf.readBytes(8).readBytes(header);

    //Handshake header
    if (Arrays.equals(header, new byte[] { -66, -70, -2, -54, 11, -80, -83, -34 })) {
        if (buf.readableBytes() >= 8) {
            buf.readBytes(8); //We read the rest of the handshake packet
            //Contains the length (inclusive the header) and 2 unknown numbers
            return new HandshakeFrame();
        } else {
            return null;
        }
    }

    int length = buf.readByte();
    buf.readBytes(3);
    byte id = buf.readByte();

    if (id != 16) {
        int readerIndex = buf.readerIndex(), writerIndex = buf.writerIndex();
        byte[] bytes = new byte[buf.readableBytes()];
        buf.readBytes(buf.readableBytes()).readBytes(bytes);
        buf.setIndex(readerIndex, writerIndex);
        // Print packets - debugging purposes
        //System.out.println("ID: " + id + " - " + Arrays.toString(bytes));
    }

    switch (id) {
    case 0:
        //if (length < 39) return null;
        return new PositionInfoServerBoundFrame(buf.readDouble(), buf.readDouble(), buf.readByte(),
                buf.readByte(), buf.readByte(), buf.readByte(), buf.readByte(), buf.readByte());
    case 1:
        return new SetReadyServerBoundFrame(buf.readByte());
    case 2:
        return new SetPlayerServerBoundFrame(buf.readDouble(), buf.readDouble(), readString(buf));
    case 3:
        return new AddPlayerServerBoundFrame(buf.readDouble(), buf.readDouble(), buf.readDouble(),
                buf.readInt(), buf.readInt(), readString(buf));
    case 4:
        return new ChatPlayerServerBoundFrame(readString(buf));
    case 5:
        return new UpdatePlayerServerBoundFrame(buf.readInt(), buf.readDouble(), buf.readDouble(),
                readString(buf));
    case 6:
        return new KeyPlayerServerBoundFrame(buf.readShort(), buf.readShort(), buf.readByte(), buf.readByte(),
                buf.readByte(), buf.readByte(), buf.readShort(), buf.readByte());
    case 7:
        return new HealPlayerServerBoundFrame(buf.readDouble(), buf.readDouble(), buf.readDouble(),
                buf.readDouble());
    case 8:
        return new NPCHPServerBoundFrame(buf.readDouble(), buf.readDouble(), buf.readDouble(), buf.readShort(),
                buf.readShort(), buf.readShort());
    case 9:
        return new MDeadServerBoundFrame();
    case 10:
        return new NPCTargetServerBoundFrame(buf.readDouble(), buf.readDouble(), buf.readInt(), buf.readShort(),
                buf.readByte());
    case 11:
        return new KeyMonsterServerBoundFrame(buf.readDouble(), buf.readDouble(), buf.readByte(),
                buf.readByte(), buf.readByte(), buf.readByte(), buf.readShort());
    case 12:
        return new CreateObjectServerBoundFrame(buf.readDouble(), buf.readDouble(), buf.readDouble());
    case 13:
        return new CreateLevelObjectServerBoundFrame(buf.readDouble(), buf.readDouble(), buf.readDouble(),
                buf.readDouble(), buf.readInt());
    case 14:
        return new SyncAlarmServerBoundFrame(buf.readDouble(), buf.readDouble(), buf.readDouble(),
                buf.readDouble(), buf.readInt());
    case 15:
        return new SpawnClassicServerBoundFrame(buf.readShort(), buf.readDouble(), buf.readDouble(),
                buf.readByte(), buf.readShort(), buf.readShort(), buf.readShort());
    case 16:
        return new LagPlayerServerBoundFrame(readString(buf));
    case 17:
        return new DisPlayerServerBoundFrame();
    case 18:
        return new TransportServerBoundFrame(buf.readDouble(), buf.readDouble(), buf.readDouble(),
                buf.readDouble(), buf.readDouble(), buf.readByte());
    case 19:
        return new ActivateObjectServerBoundFrame(buf.readDouble(), buf.readDouble(), buf.readShort(),
                buf.readShort(), buf.readByte(), buf.readByte());
    case 20:
        return new SpawnItemServerBoundFrame(buf.readDouble(), buf.readDouble(), buf.readInt());
    case 21:
        return new SyncVarServerBoundFrame(buf.readDouble());
    case 22:
        return new SpawnBossServerBoundFrame(buf.readDouble(), buf.readDouble(), buf.readByte(),
                buf.readDouble());
    case 23:
        return new SpawnClassicBossServerBoundFrame(buf.readDouble(), buf.readDouble(), buf.readInt(),
                buf.readInt(), buf.readDouble(), buf.readByte(), buf.readShort(), buf.readShort(),
                buf.readShort(), buf.readDouble());
    case 24:
        return new LevelUpServerBoundFrame();
    case 25:
        return new ItemPickupServerBoundFrame(buf.readInt(), buf.readByte());
    case 26:
        return new ChatSystemServerBoundFrame(buf.readByte(), readString(buf));
    case 27:
        return new TestServerBoundFrame();
    case 28:
        return new ItemSwapServerBoundFrame();
    case 29:
        return readItemProcFrame(buf);
    case 30:
        return new ShrineProcServerBoundFrame(buf.readByte());
    case 31:
        return new SpawnDroneServerBoundFrame(buf.readShort(), buf.readShort(), buf.readShort(),
                buf.readShort(), buf.readShort(), buf.readShort(), buf.readShort());
    case 32:
        return new SetPriceServerBoundFrame(buf.readShort(), buf.readShort());
    case 33:
        return new CreateChestServerBoundFrame();
    case 34:
        return new UpdateBuffsServerBoundFrame(buf.readDouble(), buf.readShort(), buf.readShort());
    case 35:
        return new SpawnImpmServerboundFrame(buf.readShort(), buf.readShort(), buf.readShort(), buf.readByte(),
                buf.readByte());
    case 36:
        return new UpdateChest4ServerBoundFrame(buf.readShort());
    case 37:
        return new EliteTeleportServerBoundFrame(buf.readShort(), buf.readShort());
    case 38:
        return new UpdateHpServerBoundFrame(buf.readShort());
    case 39:
        return new UpdateDiffServerBoundFrame(buf.readByte(), buf.readByte(), buf.readByte(), buf.readByte(),
                buf.readByte(), buf.readByte(), buf.readByte(), buf.readByte(), buf.readByte(), buf.readByte(),
                buf.readByte(), buf.readByte());
    case 40:
        return new SpawnGhostServerBoundFrame(buf.readShort(), buf.readShort(), buf.readFloat(),
                buf.readFloat());
    case 41:
        return new StopTimeServerBoundFrame(buf.readShort());
    case 42:
        return new LandLizardServerBoundFrame(buf.readShort(), buf.readShort());
    case 43:
        return new DestroyObjectServerBoundFrame();
    case 44:
        return new CreateSlimeServerBoundFrame(buf.readShort(), buf.readShort(), buf.readFloat(),
                buf.readShort(), buf.readShort(), buf.readShort(), buf.readByte(), buf.readShort(),
                buf.readDouble());
    case 45:
        return new CrewChoiceServerBoundFrame(buf.readShort());
    case 46:
        return new CreateItemServerBoundFrame(buf.readShort(), buf.readShort(), buf.readShort());
    case 47:
        return new ActivateSwitchServerBoundFrame(buf.readShort(), buf.readShort());
    default:
        return null;
    }
}

From source file:io.github.stormcloud_dev.stormcloud.seralization.RORObjectEncoder.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, Frame frame, ByteBuf buf) throws Exception {
    buf.writeBytes(new byte[] { -34, -64, -83, -34, 12, 0, 0, 0 }); // GM:Studio header

    //System.out.println("ENCODING: " + frame.getClass().getSimpleName());
    try {//from   w ww. j  a v a2s . c  o m
        frame.writeData(buf.order(LITTLE_ENDIAN)); // frame data - dependent on frame
    } catch (Exception exception) {
        exception.printStackTrace();
    }

    if (!(frame instanceof TestClientBoundFrame) && !(frame instanceof LagPlayerClientBoundFrame)) {
        int readerIndex = buf.readerIndex(), writerIndex = buf.writerIndex();
        byte[] bytes = new byte[buf.readableBytes()];
        buf.readBytes(buf.readableBytes()).readBytes(bytes);
        buf.setIndex(readerIndex, writerIndex);
        // Print packets - debugging purposes
        //System.out.println("SEND " + frame.getClass().getSimpleName() + " TO " + ctx.channel().remoteAddress() + " - " + Arrays.toString(bytes));
    }

}

From source file:net.petercashel.nettyCore.common.packets.CMDInPacket.java

License:Apache License

public ByteBuf getBlankPacket() {
    // TODO Auto-generated method stub
    ByteBuf b = Unpooled.buffer(Packet.packetBufSize).writeZero(Packet.packetBufSize);
    b.setIndex(0, 0);
    return b;/* ww w. j a  va  2s.c o m*/
}

From source file:net.petercashel.nettyCore.common.packets.GetHistoryPacket.java

License:Apache License

@Override
public ByteBuf getPacket() {
    // TODO Auto-generated method stub
    ByteBuf b = Unpooled.buffer(Packet.packetBufSize).writeZero(Packet.packetBufSize);
    b.setIndex(0, 0);
    return b;// w  ww .  j  a  v  a 2  s  . com
}

From source file:org.apache.activemq.artemis.core.protocol.core.impl.PacketImpl.java

License:Apache License

protected ByteBuf copyMessageBuffer(ByteBuf buffer, int skipBytes) {

    ByteBuf newNettyBuffer = Unpooled.buffer(buffer.capacity() - PACKET_HEADERS_SIZE - skipBytes);

    int read = buffer.readerIndex();
    int writ = buffer.writerIndex();
    buffer.readerIndex(PACKET_HEADERS_SIZE);

    newNettyBuffer.writeBytes(buffer, buffer.readableBytes() - skipBytes);
    buffer.setIndex(read, writ);
    newNettyBuffer.setIndex(0, writ - PACKET_HEADERS_SIZE - skipBytes);

    return newNettyBuffer;
}

From source file:org.apache.bookkeeper.bookie.storage.ldb.WriteCache.java

License:Apache License

public void forEach(EntryConsumer consumer) {
    sortedEntriesLock.lock();/*from w  ww  .  j a v a2s.  c o m*/

    try {
        int entriesToSort = (int) index.size();
        int arrayLen = entriesToSort * 4;
        if (sortedEntries == null || sortedEntries.length < arrayLen) {
            sortedEntries = new long[(int) (arrayLen * 2)];
        }

        long startTime = MathUtils.nowInNano();

        sortedEntriesIdx = 0;
        index.forEach((ledgerId, entryId, offset, length) -> {
            if (deletedLedgers.contains(ledgerId)) {
                // Ignore deleted ledgers
                return;
            }

            sortedEntries[sortedEntriesIdx] = ledgerId;
            sortedEntries[sortedEntriesIdx + 1] = entryId;
            sortedEntries[sortedEntriesIdx + 2] = offset;
            sortedEntries[sortedEntriesIdx + 3] = length;
            sortedEntriesIdx += 4;
        });

        if (log.isDebugEnabled()) {
            log.debug("iteration took {} ms", MathUtils.elapsedNanos(startTime) / 1e6);
        }
        startTime = MathUtils.nowInNano();

        // Sort entries by (ledgerId, entryId) maintaining the 4 items groups
        groupSorter.sort(sortedEntries, 0, sortedEntriesIdx);
        if (log.isDebugEnabled()) {
            log.debug("sorting {} ms", (MathUtils.elapsedNanos(startTime) / 1e6));
        }
        startTime = MathUtils.nowInNano();

        ByteBuf[] entrySegments = new ByteBuf[segmentsCount];
        for (int i = 0; i < segmentsCount; i++) {
            entrySegments[i] = cacheSegments[i].slice(0, cacheSegments[i].capacity());
        }

        for (int i = 0; i < sortedEntriesIdx; i += 4) {
            long ledgerId = sortedEntries[i];
            long entryId = sortedEntries[i + 1];
            long offset = sortedEntries[i + 2];
            long length = sortedEntries[i + 3];

            int localOffset = (int) (offset & segmentOffsetMask);
            int segmentIdx = (int) (offset >>> segmentOffsetBits);
            ByteBuf entry = entrySegments[segmentIdx];
            entry.setIndex(localOffset, localOffset + (int) length);
            consumer.accept(ledgerId, entryId, entry);
        }

        if (log.isDebugEnabled()) {
            log.debug("entry log adding {} ms", MathUtils.elapsedNanos(startTime) / 1e6);
        }
    } finally {
        sortedEntriesLock.unlock();
    }
}

From source file:org.apache.bookkeeper.common.coder.Coder.java

License:Apache License

/**
 * Encodes the given value of type {@code T} onto the given output buffer.
 *
 * @param value value to encode//from   w  w w.  j  a  v  a 2 s  .  com
 * @return the serialized bytes buf.
 */
default ByteBuf encodeBuf(T value) {
    int len = getSerializedSize(value);
    ByteBuf buffer = Unpooled.buffer(len, len);
    buffer.setIndex(0, 0);
    encode(value, buffer);
    return buffer;
}

From source file:org.apache.bookkeeper.common.coder.Coder.java

License:Apache License

/**
 * Encodes the given value of type {@code T} onto a bytes array.
 *
 * @param value value to encode/*from ww  w .  j a  va 2  s.  c o  m*/
 * @return the serialized bytes bytes.
 */
default byte[] encode(T value) {
    byte[] data = new byte[getSerializedSize(value)];
    ByteBuf buf = Unpooled.wrappedBuffer(data);
    buf.setIndex(0, 0);
    encode(value, buf);
    return data;
}

From source file:org.apache.bookkeeper.common.coder.CoderBasicTestCase.java

License:Apache License

static <T> T decode(Coder<T> coder, byte[] bytes) {
    ByteBuf buf = Unpooled.wrappedBuffer(bytes);
    buf.setIndex(0, bytes.length);
    return coder.decode(buf);
}