Examples with BaseCommand com.yahoo.pulsar.common.api.proto.PulsarApi.BaseCommand used on opensource projects

Example 1 with BaseCommand

use of com.yahoo.pulsar.common.api.proto.PulsarApi.BaseCommand in project pulsar by yahoo.

the class Commands method serializeWithSize.

private static ByteBuf serializeWithSize(BaseCommand.Builder cmdBuilder) {
    // / Wire format
    // [TOTAL_SIZE] [CMD_SIZE][CMD]
    BaseCommand cmd = cmdBuilder.build();
    int cmdSize = cmd.getSerializedSize();
    int totalSize = cmdSize + 4;
    int frameSize = totalSize + 4;
    ByteBuf buf = PooledByteBufAllocator.DEFAULT.buffer(frameSize, frameSize);
    // Prepend 2 lengths to the buffer
    buf.writeInt(totalSize);
    buf.writeInt(cmdSize);
    ByteBufCodedOutputStream outStream = ByteBufCodedOutputStream.get(buf);
    try {
        cmd.writeTo(outStream);
    } catch (IOException e) {
        // This is in-memory serialization, should not fail
        throw new RuntimeException(e);
    } finally {
        cmd.recycle();
        cmdBuilder.recycle();
        outStream.recycle();
    }
    return buf;
}

Example 2 with BaseCommand

use of com.yahoo.pulsar.common.api.proto.PulsarApi.BaseCommand in project pulsar by yahoo.

the class Commands method serializeCommandSendWithSize.

private static ByteBuf serializeCommandSendWithSize(BaseCommand.Builder cmdBuilder, ChecksumType checksumType, MessageMetadata msgMetadata, ByteBuf payload) {
    // / Wire format
    // [TOTAL_SIZE] [CMD_SIZE][CMD] [MAGIC_NUMBER][CHECKSUM] [METADATA_SIZE][METADATA] [PAYLOAD]
    BaseCommand cmd = cmdBuilder.build();
    int cmdSize = cmd.getSerializedSize();
    int msgMetadataSize = msgMetadata.getSerializedSize();
    int payloadSize = payload.readableBytes();
    int magicAndChecksumLength = ChecksumType.Crc32c.equals(checksumType) ? (2 + 4) : 0;
    boolean includeChecksum = magicAndChecksumLength > 0;
    // cmdLength + cmdSize + magicLength +
    int headerContentSize = 4 + cmdSize + magicAndChecksumLength + 4 + msgMetadataSize;
    // checksumSize + msgMetadataLength +
    // msgMetadataSize
    int totalSize = headerContentSize + payloadSize;
    // totalSize + headerLength
    int headersSize = 4 + headerContentSize;
    int checksumReaderIndex = -1;
    ByteBuf headers = PooledByteBufAllocator.DEFAULT.buffer(headersSize, headersSize);
    // External frame
    headers.writeInt(totalSize);
    try {
        // Write cmd
        headers.writeInt(cmdSize);
        ByteBufCodedOutputStream outStream = ByteBufCodedOutputStream.get(headers);
        cmd.writeTo(outStream);
        cmd.recycle();
        cmdBuilder.recycle();
        //Create checksum placeholder
        if (includeChecksum) {
            headers.writeShort(magicCrc32c);
            checksumReaderIndex = headers.writerIndex();
            //skip 4 bytes of checksum
            headers.writerIndex(headers.writerIndex() + checksumSize);
        }
        // Write metadata
        headers.writeInt(msgMetadataSize);
        msgMetadata.writeTo(outStream);
        outStream.recycle();
    } catch (IOException e) {
        // This is in-memory serialization, should not fail
        throw new RuntimeException(e);
    }
    ByteBuf command = DoubleByteBuf.get(headers, payload);
    // write checksum at created checksum-placeholder
    if (includeChecksum) {
        headers.markReaderIndex();
        headers.readerIndex(checksumReaderIndex + checksumSize);
        int metadataChecksum = computeChecksum(headers);
        int computedChecksum = resumeChecksum(metadataChecksum, payload);
        // set computed checksum
        headers.setInt(checksumReaderIndex, computedChecksum);
        headers.resetReaderIndex();
    }
    return command;
}

Example 3 with BaseCommand

use of com.yahoo.pulsar.common.api.proto.PulsarApi.BaseCommand in project pulsar by yahoo.

the class Commands method newMessage.

public static ByteBuf newMessage(long consumerId, MessageIdData messageId, ByteBuf metadataAndPayload) {
    CommandMessage.Builder msgBuilder = CommandMessage.newBuilder();
    msgBuilder.setConsumerId(consumerId);
    msgBuilder.setMessageId(messageId);
    CommandMessage msg = msgBuilder.build();
    BaseCommand.Builder cmdBuilder = BaseCommand.newBuilder();
    BaseCommand cmd = cmdBuilder.setType(Type.MESSAGE).setMessage(msg).build();
    ByteBuf res = serializeCommandMessageWithSize(cmd, metadataAndPayload);
    cmd.recycle();
    cmdBuilder.recycle();
    msg.recycle();
    msgBuilder.recycle();
    return res;
}

Example 4 with BaseCommand

use of com.yahoo.pulsar.common.api.proto.PulsarApi.BaseCommand in project pulsar by yahoo.

the class PulsarDecoder method channelRead.

@Override
public final void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    // Get a buffer that contains the full frame
    ByteBuf buffer = (ByteBuf) msg;
    BaseCommand cmd = null;
    BaseCommand.Builder cmdBuilder = null;
    try {
        // De-serialize the command
        int cmdSize = (int) buffer.readUnsignedInt();
        int writerIndex = buffer.writerIndex();
        buffer.writerIndex(buffer.readerIndex() + cmdSize);
        ByteBufCodedInputStream cmdInputStream = ByteBufCodedInputStream.get(buffer);
        cmdBuilder = BaseCommand.newBuilder();
        cmd = cmdBuilder.mergeFrom(cmdInputStream, null).build();
        buffer.writerIndex(writerIndex);
        cmdInputStream.recycle();
        if (log.isDebugEnabled()) {
            log.debug("[{}] Received cmd {}", ctx.channel().remoteAddress(), cmd.getType());
        }
        messageReceived();
        switch(cmd.getType()) {
            case PARTITIONED_METADATA:
                checkArgument(cmd.hasPartitionMetadata());
                handlePartitionMetadataRequest(cmd.getPartitionMetadata());
                cmd.getPartitionMetadata().recycle();
                break;
            case PARTITIONED_METADATA_RESPONSE:
                checkArgument(cmd.hasPartitionMetadataResponse());
                handlePartitionResponse(cmd.getPartitionMetadataResponse());
                cmd.getPartitionMetadataResponse().recycle();
                break;
            case LOOKUP:
                checkArgument(cmd.hasLookupTopic());
                handleLookup(cmd.getLookupTopic());
                cmd.getLookupTopic().recycle();
                break;
            case LOOKUP_RESPONSE:
                checkArgument(cmd.hasLookupTopicResponse());
                handleLookupResponse(cmd.getLookupTopicResponse());
                cmd.getLookupTopicResponse().recycle();
                break;
            case ACK:
                checkArgument(cmd.hasAck());
                handleAck(cmd.getAck());
                cmd.getAck().getMessageId().recycle();
                cmd.getAck().recycle();
                break;
            case CLOSE_CONSUMER:
                checkArgument(cmd.hasCloseConsumer());
                handleCloseConsumer(cmd.getCloseConsumer());
                cmd.getCloseConsumer().recycle();
                break;
            case CLOSE_PRODUCER:
                checkArgument(cmd.hasCloseProducer());
                handleCloseProducer(cmd.getCloseProducer());
                cmd.getCloseProducer().recycle();
                break;
            case CONNECT:
                checkArgument(cmd.hasConnect());
                handleConnect(cmd.getConnect());
                cmd.getConnect().recycle();
                break;
            case CONNECTED:
                checkArgument(cmd.hasConnected());
                handleConnected(cmd.getConnected());
                cmd.getConnected().recycle();
                break;
            case ERROR:
                checkArgument(cmd.hasError());
                handleError(cmd.getError());
                cmd.getError().recycle();
                break;
            case FLOW:
                checkArgument(cmd.hasFlow());
                handleFlow(cmd.getFlow());
                cmd.getFlow().recycle();
                break;
            case MESSAGE:
                {
                    checkArgument(cmd.hasMessage());
                    handleMessage(cmd.getMessage(), buffer);
                    cmd.getMessage().recycle();
                    break;
                }
            case PRODUCER:
                checkArgument(cmd.hasProducer());
                handleProducer(cmd.getProducer());
                cmd.getProducer().recycle();
                break;
            case SEND:
                {
                    checkArgument(cmd.hasSend());
                    // Store a buffer marking the content + headers
                    ByteBuf headersAndPayload = buffer.markReaderIndex();
                    handleSend(cmd.getSend(), headersAndPayload);
                    cmd.getSend().recycle();
                    break;
                }
            case SEND_ERROR:
                checkArgument(cmd.hasSendError());
                handleSendError(cmd.getSendError());
                cmd.getSendError().recycle();
                break;
            case SEND_RECEIPT:
                checkArgument(cmd.hasSendReceipt());
                handleSendReceipt(cmd.getSendReceipt());
                cmd.getSendReceipt().recycle();
                break;
            case SUBSCRIBE:
                checkArgument(cmd.hasSubscribe());
                handleSubscribe(cmd.getSubscribe());
                cmd.getSubscribe().recycle();
                break;
            case SUCCESS:
                checkArgument(cmd.hasSuccess());
                handleSuccess(cmd.getSuccess());
                cmd.getSuccess().recycle();
                break;
            case PRODUCER_SUCCESS:
                checkArgument(cmd.hasProducerSuccess());
                handleProducerSuccess(cmd.getProducerSuccess());
                cmd.getProducerSuccess().recycle();
                break;
            case UNSUBSCRIBE:
                checkArgument(cmd.hasUnsubscribe());
                handleUnsubscribe(cmd.getUnsubscribe());
                cmd.getUnsubscribe().recycle();
                break;
            case PING:
                checkArgument(cmd.hasPing());
                handlePing(cmd.getPing());
                cmd.getPing().recycle();
                break;
            case PONG:
                checkArgument(cmd.hasPong());
                handlePong(cmd.getPong());
                cmd.getPong().recycle();
                break;
            case REDELIVER_UNACKNOWLEDGED_MESSAGES:
                checkArgument(cmd.hasRedeliverUnacknowledgedMessages());
                handleRedeliverUnacknowledged(cmd.getRedeliverUnacknowledgedMessages());
                cmd.getRedeliverUnacknowledgedMessages().recycle();
                break;
            case CONSUMER_STATS:
                checkArgument(cmd.hasConsumerStats());
                handleConsumerStats(cmd.getConsumerStats());
                cmd.getConsumerStats().recycle();
                break;
            case CONSUMER_STATS_RESPONSE:
                checkArgument(cmd.hasConsumerStatsResponse());
                handleConsumerStatsResponse(cmd.getConsumerStatsResponse());
                cmd.getConsumerStatsResponse().recycle();
                break;
        }
    } finally {
        if (cmdBuilder != null) {
            cmdBuilder.recycle();
        }
        if (cmd != null) {
            cmd.recycle();
        }
        buffer.release();
    }
}