How to use

GetTopicsByClusterRequestHeader

in

org.apache.rocketmq.common.protocol.header

public TopicList getTopicsByCluster(final String cluster, final long timeoutMillis)
  throws RemotingException, MQClientException, InterruptedException {
  GetTopicsByClusterRequestHeader requestHeader = new GetTopicsByClusterRequestHeader();
  requestHeader.setCluster(cluster);
  RemotingCommand request = RemotingCommand.createRequestCommand(RequestCode.GET_TOPICS_BY_CLUSTER, requestHeader);
  RemotingCommand response = this.remotingClient.invokeSync(null, request, timeoutMillis);
  assert response != null;
  switch (response.getCode()) {
    case ResponseCode.SUCCESS: {
      byte[] body = response.getBody();
      if (body != null) {
        TopicList topicList = TopicList.decode(body, TopicList.class);
        return topicList;
      }
    }
    default:
      break;
  }
  throw new MQClientException(response.getCode(), response.getRemark());
}

private RemotingCommand getTopicsByCluster(ChannelHandlerContext ctx,
  RemotingCommand request) throws RemotingCommandException {
  final RemotingCommand response = RemotingCommand.createResponseCommand(null);
  final GetTopicsByClusterRequestHeader requestHeader =
    (GetTopicsByClusterRequestHeader) request.decodeCommandCustomHeader(GetTopicsByClusterRequestHeader.class);
  byte[] body = this.namesrvController.getRouteInfoManager().getTopicsByCluster(requestHeader.getCluster());
  response.setBody(body);
  response.setCode(ResponseCode.SUCCESS);
  response.setRemark(null);
  return response;
}

public TopicList getTopicsByCluster(final String cluster, final long timeoutMillis)
  throws RemotingException, MQClientException, InterruptedException {
  GetTopicsByClusterRequestHeader requestHeader = new GetTopicsByClusterRequestHeader();
  requestHeader.setCluster(cluster);
  RemotingCommand request = RemotingCommand.createRequestCommand(RequestCode.GET_TOPICS_BY_CLUSTER, requestHeader);
  RemotingCommand response = this.remotingClient.invokeSync(null, request, timeoutMillis);
  assert response != null;
  switch (response.getCode()) {
    case ResponseCode.SUCCESS: {
      byte[] body = response.getBody();
      if (body != null) {
        TopicList topicList = TopicList.decode(body, TopicList.class);
        return topicList;
      }
    }
    default:
      break;
  }
  throw new MQClientException(response.getCode(), response.getRemark());
}

private RemotingCommand getTopicsByCluster(ChannelHandlerContext ctx,
  RemotingCommand request) throws RemotingCommandException {
  final RemotingCommand response = RemotingCommand.createResponseCommand(null);
  final GetTopicsByClusterRequestHeader requestHeader =
    (GetTopicsByClusterRequestHeader) request.decodeCommandCustomHeader(GetTopicsByClusterRequestHeader.class);
  byte[] body = this.namesrvController.getRouteInfoManager().getTopicsByCluster(requestHeader.getCluster());
  response.setBody(body);
  response.setCode(ResponseCode.SUCCESS);
  response.setRemark(null);
  return response;
}

public TopicList getTopicsByCluster(final String cluster, final long timeoutMillis)
  throws RemotingException, MQClientException, InterruptedException {
  GetTopicsByClusterRequestHeader requestHeader = new GetTopicsByClusterRequestHeader();
  requestHeader.setCluster(cluster);
  RemotingCommand request = RemotingCommand.createRequestCommand(RequestCode.GET_TOPICS_BY_CLUSTER, requestHeader);
  RemotingCommand response = this.remotingClient.invokeSync(null, request, timeoutMillis);
  assert response != null;
  switch (response.getCode()) {
    case ResponseCode.SUCCESS: {
      byte[] body = response.getBody();
      if (body != null) {
        TopicList topicList = TopicList.decode(body, TopicList.class);
        return topicList;
      }
    }
    default:
      break;
  }
  throw new MQClientException(response.getCode(), response.getRemark());
}