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Java源码示例：org.apache.rocketmq.common.protocol.header.QueryConsumerOffsetResponseHeader

示例1
private RemotingCommand queryConsumerOffset(ChannelHandlerContext ctx, RemotingCommand request)
    throws RemotingCommandException {
    final RemotingCommand response =
        RemotingCommand.createResponseCommand(QueryConsumerOffsetResponseHeader.class);
    final QueryConsumerOffsetResponseHeader responseHeader =
        (QueryConsumerOffsetResponseHeader) response.readCustomHeader();
    final QueryConsumerOffsetRequestHeader requestHeader =
        (QueryConsumerOffsetRequestHeader) request
            .decodeCommandCustomHeader(QueryConsumerOffsetRequestHeader.class);

    long offset =
        this.brokerController.getConsumerOffsetManager().queryOffset(
            requestHeader.getConsumerGroup(), requestHeader.getTopic(), requestHeader.getQueueId());

    if (offset >= 0) {
        responseHeader.setOffset(offset);
        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);
    } else {
        long minOffset =
            this.brokerController.getMessageStore().getMinOffsetInQueue(requestHeader.getTopic(),
                requestHeader.getQueueId());
        if (minOffset <= 0
            && !this.brokerController.getMessageStore().checkInDiskByConsumeOffset(
            requestHeader.getTopic(), requestHeader.getQueueId(), 0)) {
            responseHeader.setOffset(0L);
            response.setCode(ResponseCode.SUCCESS);
            response.setRemark(null);
        } else {
            response.setCode(ResponseCode.QUERY_NOT_FOUND);
            response.setRemark("Not found, V3_0_6_SNAPSHOT maybe this group consumer boot first");
        }
    }

    return response;
}
示例2
private RemotingCommand queryConsumerOffset(ChannelHandlerContext ctx, RemotingCommand request)
        throws RemotingCommandException {
        final RemotingCommand response =
            RemotingCommand.createResponseCommand(QueryConsumerOffsetResponseHeader.class);
        final QueryConsumerOffsetResponseHeader responseHeader =
            (QueryConsumerOffsetResponseHeader) response.readCustomHeader();
        final QueryConsumerOffsetRequestHeader requestHeader =
            (QueryConsumerOffsetRequestHeader) request
                .decodeCommandCustomHeader(QueryConsumerOffsetRequestHeader.class);

//        查询offset=》
        long offset =
            this.brokerController.getConsumerOffsetManager().queryOffset(
                requestHeader.getConsumerGroup(), requestHeader.getTopic(), requestHeader.getQueueId());

        if (offset >= 0) {
            responseHeader.setOffset(offset);
            response.setCode(ResponseCode.SUCCESS);
            response.setRemark(null);
        } else {
//            获取最小的offset=》
            long minOffset =
                this.brokerController.getMessageStore().getMinOffsetInQueue(requestHeader.getTopic(),
                    requestHeader.getQueueId());
            if (minOffset <= 0
//                    检查持久化的offset=》
                && !this.brokerController.getMessageStore().checkInDiskByConsumeOffset(
                requestHeader.getTopic(), requestHeader.getQueueId(), 0)) {
                responseHeader.setOffset(0L);
                response.setCode(ResponseCode.SUCCESS);
                response.setRemark(null);
            } else {
                response.setCode(ResponseCode.QUERY_NOT_FOUND);
                response.setRemark("Not found, V3_0_6_SNAPSHOT maybe this group consumer boot first");
            }
        }

        return response;
    }
示例3
private RemotingCommand queryConsumerOffset(ChannelHandlerContext ctx, RemotingCommand request)
    throws RemotingCommandException {
    final RemotingCommand response =
        RemotingCommand.createResponseCommand(QueryConsumerOffsetResponseHeader.class);
    final QueryConsumerOffsetResponseHeader responseHeader =
        (QueryConsumerOffsetResponseHeader)response.readCustomHeader();
    final QueryConsumerOffsetRequestHeader requestHeader =
        (QueryConsumerOffsetRequestHeader)request
            .decodeCommandCustomHeader(QueryConsumerOffsetRequestHeader.class);

    long offset =
        this.brokerController.getConsumerOffsetManager().queryOffset(
            requestHeader.getConsumerGroup(), requestHeader.getTopic(), requestHeader.getQueueId());

    if (offset >= 0) {
        responseHeader.setOffset(offset);
        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);
    } else {
        long minOffset =
            this.brokerController.getMessageStore().getMinOffsetInQuque(requestHeader.getTopic(),
                requestHeader.getQueueId());
        if (minOffset <= 0
            && !this.brokerController.getMessageStore().checkInDiskByConsumeOffset(
            requestHeader.getTopic(), requestHeader.getQueueId(), 0)) {
            responseHeader.setOffset(0L);
            response.setCode(ResponseCode.SUCCESS);
            response.setRemark(null);
        } else {
            response.setCode(ResponseCode.QUERY_NOT_FOUND);
            response.setRemark("Not found, V3_0_6_SNAPSHOT maybe this group consumer boot first");
        }
    }

    return response;
}
示例4
private RemotingCommand queryConsumerOffset(ChannelHandlerContext ctx, RemotingCommand request)
    throws RemotingCommandException {
    final RemotingCommand response =
        RemotingCommand.createResponseCommand(QueryConsumerOffsetResponseHeader.class);
    final QueryConsumerOffsetResponseHeader responseHeader =
        (QueryConsumerOffsetResponseHeader) response.readCustomHeader();
    final QueryConsumerOffsetRequestHeader requestHeader =
        (QueryConsumerOffsetRequestHeader) request
            .decodeCommandCustomHeader(QueryConsumerOffsetRequestHeader.class);

    long offset =
        this.brokerController.getConsumerOffsetManager().queryOffset(
            requestHeader.getConsumerGroup(), requestHeader.getTopic(), requestHeader.getQueueId());

    if (offset >= 0) {
        responseHeader.setOffset(offset);
        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);
    } else {
        long minOffset =
            this.brokerController.getMessageStore().getMinOffsetInQueue(requestHeader.getTopic(),
                requestHeader.getQueueId());
        if (minOffset <= 0
            && !this.brokerController.getMessageStore().checkInDiskByConsumeOffset(
            requestHeader.getTopic(), requestHeader.getQueueId(), 0)) {
            responseHeader.setOffset(0L);
            response.setCode(ResponseCode.SUCCESS);
            response.setRemark(null);
        } else {
            response.setCode(ResponseCode.QUERY_NOT_FOUND);
            response.setRemark("Not found, V3_0_6_SNAPSHOT maybe this group consumer boot first");
        }
    }

    return response;
}
示例5
private RemotingCommand queryConsumerOffset(ChannelHandlerContext ctx, RemotingCommand request)
    throws RemotingCommandException {
    final RemotingCommand response =
        RemotingCommand.createResponseCommand(QueryConsumerOffsetResponseHeader.class);
    final QueryConsumerOffsetResponseHeader responseHeader =
        (QueryConsumerOffsetResponseHeader) response.readCustomHeader();
    final QueryConsumerOffsetRequestHeader requestHeader =
        (QueryConsumerOffsetRequestHeader) request
            .decodeCommandCustomHeader(QueryConsumerOffsetRequestHeader.class);

    long offset =
        this.brokerController.getConsumerOffsetManager().queryOffset(
            requestHeader.getConsumerGroup(), requestHeader.getTopic(), requestHeader.getQueueId());

    if (offset >= 0) {
        responseHeader.setOffset(offset);
        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);
    } else {
        long minOffset =
            this.brokerController.getMessageStore().getMinOffsetInQueue(requestHeader.getTopic(),
                requestHeader.getQueueId());
        if (minOffset <= 0
            && !this.brokerController.getMessageStore().checkInDiskByConsumeOffset(
            requestHeader.getTopic(), requestHeader.getQueueId(), 0)) {
            responseHeader.setOffset(0L);
            response.setCode(ResponseCode.SUCCESS);
            response.setRemark(null);
        } else {
            response.setCode(ResponseCode.QUERY_NOT_FOUND);
            response.setRemark("Not found, V3_0_6_SNAPSHOT maybe this group consumer boot first");
        }
    }

    return response;
}
示例6
/**
 * 查询消费者偏移量
 * @param ctx ctx
 * @param request request
 * @return ;
 * @throws RemotingCommandException ;
 */
private RemotingCommand queryConsumerOffset(ChannelHandlerContext ctx, RemotingCommand request)
    throws RemotingCommandException {

    final RemotingCommand response =
        RemotingCommand.createResponseCommand(QueryConsumerOffsetResponseHeader.class);

    final QueryConsumerOffsetResponseHeader responseHeader =
        (QueryConsumerOffsetResponseHeader) response.readCustomHeader();
    final QueryConsumerOffsetRequestHeader requestHeader =
        (QueryConsumerOffsetRequestHeader) request
            .decodeCommandCustomHeader(QueryConsumerOffsetRequestHeader.class);

    long offset =
        this.brokerController.getConsumerOffsetManager().queryOffset(
            requestHeader.getConsumerGroup(), requestHeader.getTopic(), requestHeader.getQueueId());

    //大于0直接返回
    if (offset >= 0) {
        responseHeader.setOffset(offset);
        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);
    } else {
        //最小的偏移量从getMinOffsetInQueue取
        long minOffset =
            this.brokerController.getMessageStore().getMinOffsetInQueue(requestHeader.getTopic(),
                requestHeader.getQueueId());
        //如果minOffset小于0并且内存里也查不到
        if (minOffset <= 0
            && !this.brokerController.getMessageStore().checkInDiskByConsumeOffset(
            requestHeader.getTopic(), requestHeader.getQueueId(), 0)) {

            responseHeader.setOffset(0L);
            response.setCode(ResponseCode.SUCCESS);
            response.setRemark(null);
        } else {
            response.setCode(ResponseCode.QUERY_NOT_FOUND);
            response.setRemark("Not found, V3_0_6_SNAPSHOT maybe this group consumer boot first");
        }
    }

    return response;
}
示例7
private RemotingCommand queryConsumerOffset(ChannelHandlerContext ctx, RemotingCommand request)
    throws RemotingCommandException {
    final RemotingCommand response =
        RemotingCommand.createResponseCommand(QueryConsumerOffsetResponseHeader.class);
    final QueryConsumerOffsetResponseHeader responseHeader =
        (QueryConsumerOffsetResponseHeader) response.readCustomHeader();
    final QueryConsumerOffsetRequestHeader requestHeader =
        (QueryConsumerOffsetRequestHeader) request
            .decodeCommandCustomHeader(QueryConsumerOffsetRequestHeader.class);

    long offset =
        this.brokerController.getConsumerOffsetManager().queryOffset(
            requestHeader.getConsumerGroup(), requestHeader.getTopic(), requestHeader.getQueueId());

    // 订阅组存在
    if (offset >= 0) {
        responseHeader.setOffset(offset);
        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);
    }
    // 订阅组不存在
    else {
        long minOffset =
            this.brokerController.getMessageStore().getMinOffsetInQueue(requestHeader.getTopic(),
                requestHeader.getQueueId());
        // 订阅组不存在情况下，如果这个队列的消息最小Offset是0，则表示这个Topic上线时间不长，服务器堆积的数据也不多，那么这个订阅组就从0开始消费。
        // 尤其对于Topic队列数动态扩容时，必须要从0开始消费。
        if (minOffset <= 0
            && !this.brokerController.getMessageStore().checkInDiskByConsumeOffset(
            requestHeader.getTopic(), requestHeader.getQueueId(), 0)) {
            responseHeader.setOffset(0L);
            response.setCode(ResponseCode.SUCCESS);
            response.setRemark(null);
        }
        // 新版本服务器不做消费进度纠正
        else {
            response.setCode(ResponseCode.QUERY_NOT_FOUND);
            response.setRemark("Not found, V3_0_6_SNAPSHOT maybe this group consumer boot first");
        }
    }

    return response;
}