Example usage for io.netty.buffer ByteBuf writeInt

Introduction

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

Prototype

public abstract ByteBuf writeInt(int value);

Source Link

Document

Sets the specified 32-bit integer at the current writerIndex and increases the writerIndex by 4 in this buffer.

Usage

From source file:com.builtbroken.paw.content.battery.TileNodeBattery.java

@Override
public void writeDescPacket(ByteBuf buf) {
    super.writeDescPacket(buf);
    buf.writeInt(getEnergyBuffer(ForgeDirection.UNKNOWN).getEnergyStored());
}

From source file:com.cc.nettytest.proxy.encoder.CCLengthFieldPrepender.java

License:Apache License

@Override
public void encode(ChannelHandlerContext ctx, ByteBuf msg, ByteBuf out) throws Exception {

    int length = lengthIncludesLengthFieldLength ? msg.readableBytes() + lengthFieldLength
            : msg.readableBytes();/*  w ww .ja  va  2  s.  c om*/
    switch (lengthFieldLength) {
    case 1:
        if (length >= 256) {
            throw new IllegalArgumentException("length does not fit into a byte: " + length);
        }
        out.writeByte((byte) length);
        break;
    case 2:
        if (length >= 65536) {
            throw new IllegalArgumentException("length does not fit into a short integer: " + length);
        }
        out.writeShort((short) length);
        break;
    case 3:
        if (length >= 16777216) {
            throw new IllegalArgumentException("length does not fit into a medium integer: " + length);
        }
        out.writeMedium(length);
        break;
    case 4:
        out.writeInt(ByteBufUtil.swapInt((int) length)); //SWAP FOR UIMANAGER
        break;
    case 8:
        out.writeLong(length);
        break;
    default:
        throw new Error("should not reach here");
    }

    out.writeBytes(msg, msg.readerIndex(), msg.readableBytes());
}

From source file:com.cdg.study.netty.time.TimeServerHandler.java

License:Open Source License

@Override
public void channelActive(final ChannelHandlerContext ctx) { // (1)
    final ByteBuf time = ctx.alloc().buffer(4); // (2)
    time.writeInt((int) (System.currentTimeMillis() / 1000L + 2208988800L));

    final ChannelFuture f = ctx.writeAndFlush(time); // (3)
    f.addListener(new ChannelFutureListener() {

        public void operationComplete(ChannelFuture future) {
            assert f == future;
            ctx.close();//from   w w  w .java  2s .c  o m
        }
    }); // (4)
}

From source file:com.cloudera.livy.client.local.rpc.KryoMessageCodec.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, Object msg, ByteBuf buf) throws Exception {
    ByteBuffer msgData = maybeEncrypt(serializer.serialize(msg));
    LOG.debug("Encoded message of type {} ({} bytes)", msg.getClass().getName(), msgData.remaining());
    checkSize(msgData.remaining());// w  ww  .j a va2  s  .  c  om

    buf.ensureWritable(msgData.remaining() + 4);
    buf.writeInt(msgData.remaining());
    buf.writeBytes(msgData);
}

From source file:com.cloudera.livy.client.local.rpc.TestKryoMessageCodec.java

License:Apache License

@Test
public void testNegativeMessageSize() throws Exception {
    KryoMessageCodec codec = new KryoMessageCodec(1024);
    ByteBuf buf = newBuffer();
    buf.writeInt(-1);

    try {/*from  ww w .j a  v a 2 s  . c o  m*/
        List<Object> out = Lists.newArrayList();
        codec.decode(null, buf, out);
        fail("Should have failed to decode message with negative size.");
    } catch (IllegalArgumentException e) {
        assertTrue(e.getMessage().indexOf("must be positive") > 0);
    }
}

From source file:com.cloudera.livy.rsc.rpc.TestKryoMessageCodec.java

License:Apache License

@Test
public void testNegativeMessageSize() throws Exception {
    KryoMessageCodec codec = new KryoMessageCodec(1024);
    ByteBuf buf = newBuffer();
    buf.writeInt(-1);

    try {/*from  w  w  w  . j ava2  s.  c  o m*/
        List<Object> out = new ArrayList<>();
        codec.decode(null, buf, out);
        fail("Should have failed to decode message with negative size.");
    } catch (IllegalArgumentException e) {
        assertTrue(e.getMessage().indexOf("must be positive") > 0);
    }
}

From source file:com.cloudhopper.smpp.transcoder.DefaultPduTranscoder.java

License:Apache License

@Override
public ByteBuf encode(Pdu pdu) throws UnrecoverablePduException, RecoverablePduException {
    // see if we can map the command status into a message
    if (pdu instanceof PduResponse) {
        PduResponse response = (PduResponse) pdu;
        if (response.getResultMessage() == null) {
            response.setResultMessage(context.lookupResultMessage(pdu.getCommandStatus()));
        }/*  ww  w . j a v a2  s  .  co m*/
    }

    // if the pdu length hasn't been assigned yet, calculate it now
    // NOTE: it may be safest to recalculate it, but we won't since the SmppSession
    // should really be the only interface creating PDUs
    if (!pdu.hasCommandLengthCalculated()) {
        pdu.calculateAndSetCommandLength();
    }

    // create the buffer and add the header
    ByteBuf buffer = Unpooled.buffer(pdu.getCommandLength());
    buffer.order(ByteOrder.BIG_ENDIAN);

    buffer.writeInt(pdu.getCommandLength());
    buffer.writeInt(pdu.getCommandId());
    buffer.writeInt(pdu.getCommandStatus());
    buffer.writeInt(pdu.getSequenceNumber());

    // add mandatory body (a noop if no body exists)
    pdu.writeBody(buffer);

    // add optional parameters (a noop if none exist)
    pdu.writeOptionalParameters(buffer, context);

    // NOTE: at this point, the entire buffer written MUST match the command length
    // from earlier -- if it doesn't match, the our encoding process went awry
    if (buffer.readableBytes() != pdu.getCommandLength()) {
        throw new NotEnoughDataInBufferException(
                "During PDU encoding the expected commandLength did not match the actual encoded (a serious error with our own encoding process)",
                pdu.getCommandLength(), buffer.readableBytes());
    }

    return buffer;
}

From source file:com.couchbase.client.core.endpoint.binary.BinaryCodec.java

License:Open Source License

/**
 * Creates the actual protocol level request for an incoming upsert request.
 *
 * @param request the incoming upsert request.
 * @param ctx the channel handler context for buffer allocations.
 * @return the built protocol request./*from w w w  . ja v  a2s  .com*/
 */
private BinaryMemcacheRequest handleUpsertRequest(final UpsertRequest request,
        final ChannelHandlerContext ctx) {
    ByteBuf extras = ctx.alloc().buffer(8);
    extras.writeInt(request.flags());
    extras.writeInt(request.expiration());

    FullBinaryMemcacheRequest msg = new DefaultFullBinaryMemcacheRequest(request.key(), extras,
            request.content());

    msg.setOpcode(BinaryMemcacheOpcodes.SET);
    msg.setKeyLength((short) request.key().length());
    msg.setTotalBodyLength(
            (short) request.key().length() + request.content().readableBytes() + extras.readableBytes());
    msg.setReserved(request.partition());
    msg.setExtrasLength((byte) extras.readableBytes());
    return msg;
}

From source file:com.couchbase.client.core.endpoint.binary.BinaryCodec.java

License:Open Source License

/**
 * Creates the actual protocol level request for an incoming replacer request.
 *
 * @param request the incoming replace request.
 * @param ctx the channel handler context for buffer allocations.
 * @return the built protocol request.//from   ww w.java  2s  .c om
 */
private BinaryMemcacheRequest handleReplaceRequest(final ReplaceRequest request,
        final ChannelHandlerContext ctx) {
    ByteBuf extras = ctx.alloc().buffer(8);
    extras.writeInt(request.flags());
    extras.writeInt(request.expiration());

    FullBinaryMemcacheRequest msg = new DefaultFullBinaryMemcacheRequest(request.key(), extras,
            request.content());

    msg.setOpcode(BinaryMemcacheOpcodes.REPLACE);
    msg.setCAS(request.cas());
    msg.setKeyLength((short) request.key().length());
    msg.setTotalBodyLength(
            (short) request.key().length() + request.content().readableBytes() + extras.readableBytes());
    msg.setReserved(request.partition());
    msg.setExtrasLength((byte) extras.readableBytes());
    return msg;
}

From source file:com.couchbase.client.core.endpoint.binary.BinaryCodec.java

License:Open Source License

/**
 * Creates the actual protocol level request for an incoming insert request.
 *
 * @param request the incoming insert request.
 * @param ctx the channel handler context for buffer allocations.
 * @return the built protocol request./*from w ww. j a v a 2 s .c o  m*/
 */
private BinaryMemcacheRequest handleInsertRequest(final InsertRequest request,
        final ChannelHandlerContext ctx) {
    ByteBuf extras = ctx.alloc().buffer(8);
    extras.writeInt(request.flags());
    extras.writeInt(request.expiration());

    FullBinaryMemcacheRequest msg = new DefaultFullBinaryMemcacheRequest(request.key(), extras,
            request.content());

    msg.setOpcode(BinaryMemcacheOpcodes.ADD);
    msg.setKeyLength((short) request.key().length());
    msg.setTotalBodyLength(
            (short) request.key().length() + request.content().readableBytes() + extras.readableBytes());
    msg.setReserved(request.partition());
    msg.setExtrasLength((byte) extras.readableBytes());
    return msg;
}