rocketmq源码解析之NamesrvController启动②mqclient admin请求处理之获取broker配置

说在前面

继续解析管理请求GET_BROKER_CONFIG 获取broker配置

 

源码解析

进入到这个方法org.apache.rocketmq.broker.processor.AdminBrokerProcessor#getBrokerConfig 获取broker配置

private RemotingCommand getBrokerConfig(ChannelHandlerContext ctx, RemotingCommand request) {

        final RemotingCommand response = RemotingCommand.createResponseCommand(GetBrokerConfigResponseHeader.class);
        final GetBrokerConfigResponseHeader responseHeader = (GetBrokerConfigResponseHeader) response.readCustomHeader();
//        从内存中获取配置信息
        String content = this.brokerController.getConfiguration().getAllConfigsFormatString();
        if (content != null && content.length() > 0) {
            try {
                response.setBody(content.getBytes(MixAll.DEFAULT_CHARSET));
            } catch (UnsupportedEncodingException e) {
                log.error("", e);
                response.setCode(ResponseCode.SYSTEM_ERROR);
                response.setRemark("UnsupportedEncodingException " + e);
                return response;
            }
        }

        responseHeader.setVersion(this.brokerController.getConfiguration().getDataVersionJson());
        response.setCode(ResponseCode.SUCCESS);
        response.setRemark(null);
        return response;
    }

进入这个方法org.apache.rocketmq.common.Configuration#getAllConfigsInternal 从配置中获取broker配置

private String getAllConfigsInternal() {
    StringBuilder stringBuilder = new StringBuilder();
    // reload from config object ?
    for (Object configObject : this.configObjectList) {
        Properties properties = MixAll.object2Properties(configObject);
        if (properties != null) {
            merge(properties, this.allConfigs);
        } else {
            log.warn("getAllConfigsInternal object2Properties is null, {}", configObject.getClass());
        }
    }

    {
        stringBuilder.append(MixAll.properties2String(this.allConfigs));
    }

    return stringBuilder.toString();
}

往上返回到这个方法org.apache.rocketmq.broker.processor.AdminBrokerProcessor#getBrokerConfig 解析完毕。

 

 

说在最后

本次解析仅表明我的观点，仅供参考。

 

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