org.apache.rocketmq.common.protocol.header.namesrv.QueryDataVersionRequestHeader Java Examples

The following examples show how to use org.apache.rocketmq.common.protocol.header.namesrv.QueryDataVersionRequestHeader. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: DefaultRequestProcessor.java    From rocketmq-4.3.0 with Apache License 2.0 6 votes vote down vote up 
public RemotingCommand queryBrokerTopicConfig(ChannelHandlerContext ctx,
        RemotingCommand request) throws RemotingCommandException {
        final RemotingCommand response = RemotingCommand.createResponseCommand(QueryDataVersionResponseHeader.class);
        final QueryDataVersionResponseHeader responseHeader = (QueryDataVersionResponseHeader) response.readCustomHeader();
        final QueryDataVersionRequestHeader requestHeader =
            (QueryDataVersionRequestHeader) request.decodeCommandCustomHeader(QueryDataVersionRequestHeader.class);
        DataVersion dataVersion = DataVersion.decode(request.getBody(), DataVersion.class);

//       broker topic配置是否改变=》
        Boolean changed = this.namesrvController.getRouteInfoManager().isBrokerTopicConfigChanged(requestHeader.getBrokerAddr(), dataVersion);
        if (!changed) {
//            更新broker配置的最后更新时间=》
            this.namesrvController.getRouteInfoManager().updateBrokerInfoUpdateTimestamp(requestHeader.getBrokerAddr());
        }

//        查询namesrv的数据版本=》
        DataVersion nameSeverDataVersion = this.namesrvController.getRouteInfoManager().queryBrokerTopicConfig(requestHeader.getBrokerAddr());
        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);

        if (nameSeverDataVersion != null) {
            response.setBody(nameSeverDataVersion.encode());
        }
        responseHeader.setChanged(changed);
        return response;
    }
Example #2
Source File: DefaultRequestProcessor.java    From rocketmq with Apache License 2.0 6 votes vote down vote up 
public RemotingCommand queryBrokerTopicConfig(ChannelHandlerContext ctx,
    RemotingCommand request) throws RemotingCommandException {
    final RemotingCommand response = RemotingCommand.createResponseCommand(QueryDataVersionResponseHeader.class);
    final QueryDataVersionResponseHeader responseHeader = (QueryDataVersionResponseHeader) response.readCustomHeader();
    final QueryDataVersionRequestHeader requestHeader =
        (QueryDataVersionRequestHeader) request.decodeCommandCustomHeader(QueryDataVersionRequestHeader.class);
    DataVersion dataVersion = DataVersion.decode(request.getBody(), DataVersion.class);

    Boolean changed = this.namesrvController.getRouteInfoManager().isBrokerTopicConfigChanged(requestHeader.getBrokerAddr(), dataVersion);
    if (!changed) {
        this.namesrvController.getRouteInfoManager().updateBrokerInfoUpdateTimestamp(requestHeader.getBrokerAddr());
    }

    DataVersion nameSeverDataVersion = this.namesrvController.getRouteInfoManager().queryBrokerTopicConfig(requestHeader.getBrokerAddr());
    response.setCode(ResponseCode.SUCCESS);
    response.setRemark(null);

    if (nameSeverDataVersion != null) {
        response.setBody(nameSeverDataVersion.encode());
    }
    responseHeader.setChanged(changed);
    return response;
}
Example #3
Source File: DefaultRequestProcessor.java    From rocketmq-read with Apache License 2.0 5 votes vote down vote up 
/**
 * 查询Broker的TopicConfig
 * @param ctx ctx
 * @param request request
 * @return ;
 * @throws RemotingCommandException ;
 */
public RemotingCommand queryBrokerTopicConfig(ChannelHandlerContext ctx,
    RemotingCommand request) throws RemotingCommandException {

    final RemotingCommand response = RemotingCommand.createResponseCommand(QueryDataVersionResponseHeader.class);
    final QueryDataVersionResponseHeader responseHeader = (QueryDataVersionResponseHeader) response.readCustomHeader();

    final QueryDataVersionRequestHeader requestHeader =
            (QueryDataVersionRequestHeader) request.decodeCommandCustomHeader(QueryDataVersionRequestHeader.class);
    DataVersion dataVersion = DataVersion.decode(request.getBody(), DataVersion.class);

    Boolean changed = this.namesrvController.getRouteInfoManager().isBrokerTopicConfigChanged(requestHeader.getBrokerAddr(), dataVersion);
    //如果没有变化，就是更新时间戳
    if (!changed) {
        this.namesrvController.getRouteInfoManager().updateBrokerInfoUpdateTimestamp(requestHeader.getBrokerAddr());
    }

    //返回是否有变化，并返回最新的DataVersion
    DataVersion nameSeverDataVersion = this.namesrvController.getRouteInfoManager().queryBrokerTopicConfig(requestHeader.getBrokerAddr());
    response.setCode(ResponseCode.SUCCESS);
    response.setRemark(null);

    if (nameSeverDataVersion != null) {
        response.setBody(nameSeverDataVersion.encode());
    }
    responseHeader.setChanged(changed);
    return response;
}