private static ByteBufPair serializeCommandMessageWithSize(BaseCommand cmd, ByteBuf metadataAndPayload) { // / Wire format // [TOTAL_SIZE] [CMD_SIZE][CMD] [MAGIC_NUMBER][CHECKSUM] [METADATA_SIZE][METADATA] [PAYLOAD] // // metadataAndPayload contains from magic-number to the payload included int cmdSize = cmd.getSerializedSize(); int totalSize = 4 + cmdSize + metadataAndPayload.readableBytes(); int headersSize = 4 + 4 + cmdSize; ByteBuf headers = PooledByteBufAllocator.DEFAULT.buffer(headersSize); headers.writeInt(totalSize); // External frame try { // Write cmd headers.writeInt(cmdSize); ByteBufCodedOutputStream outStream = ByteBufCodedOutputStream.get(headers); cmd.writeTo(outStream); outStream.recycle(); } catch (IOException e) { // This is in-memory serialization, should not fail throw new RuntimeException(e); } return (ByteBufPair) ByteBufPair.get(headers, metadataAndPayload); }
ByteBufPair command = ByteBufPair.get(headers, payload);
public ByteBuf getMessageWithMetadata(byte[] data) throws IOException { MessageMetadata messageData = MessageMetadata.newBuilder().setPublishTime(System.currentTimeMillis()) .setProducerName("prod-name").setSequenceId(0).build(); ByteBuf payload = Unpooled.wrappedBuffer(data, 0, data.length); int msgMetadataSize = messageData.getSerializedSize(); int headersSize = 4 + msgMetadataSize; ByteBuf headers = PooledByteBufAllocator.DEFAULT.buffer(headersSize, headersSize); ByteBufCodedOutputStream outStream = ByteBufCodedOutputStream.get(headers); headers.writeInt(msgMetadataSize); messageData.writeTo(outStream); outStream.recycle(); return ByteBufPair.coalesce(ByteBufPair.get(headers, payload)); }
private static ByteBufPair serializeCommandMessageWithSize(BaseCommand cmd, ByteBuf metadataAndPayload) { // / Wire format // [TOTAL_SIZE] [CMD_SIZE][CMD] [MAGIC_NUMBER][CHECKSUM] [METADATA_SIZE][METADATA] [PAYLOAD] // // metadataAndPayload contains from magic-number to the payload included int cmdSize = cmd.getSerializedSize(); int totalSize = 4 + cmdSize + metadataAndPayload.readableBytes(); int headersSize = 4 + 4 + cmdSize; ByteBuf headers = PooledByteBufAllocator.DEFAULT.buffer(headersSize); headers.writeInt(totalSize); // External frame try { // Write cmd headers.writeInt(cmdSize); ByteBufCodedOutputStream outStream = ByteBufCodedOutputStream.get(headers); cmd.writeTo(outStream); outStream.recycle(); } catch (IOException e) { // This is in-memory serialization, should not fail throw new RuntimeException(e); } return (ByteBufPair) ByteBufPair.get(headers, metadataAndPayload); }
ByteBufPair command = ByteBufPair.get(headers, payload);