/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

syntax = "proto3";

option java_multiple_files = true;
option java_package = "org.apache.hudi.connect";
option java_outer_classname = "ConnectControl";

package connect;

message ControlMessage {
  uint32 protocolVersion = 1;
  EventType type = 2;
  string topic_name = 3;
  EntityType sender_type = 4;
  uint32 sender_partition = 5;
  EntityType receiver_type = 6;
  uint32 receiver_partition = 7;
  string commitTime = 8;
  oneof payload {
    CoordinatorInfo coordinator_info = 9;
    ParticipantInfo participant_info = 10;
  }

  message CoordinatorInfo {
    map<int32, int64> globalKafkaCommitOffsets = 1;
  }

  message ParticipantInfo {
    ConnectWriteStatus writeStatus = 1;
    uint64 kafkaOffset = 2;
  }

  message ConnectWriteStatus {
    bytes serializedWriteStatus = 1;
  }

  enum EventType {
    START_COMMIT = 0;
    END_COMMIT = 1;
    ACK_COMMIT = 2;
    WRITE_STATUS = 3;
  }

  enum EntityType {
    COORDINATOR = 0;
    PARTICIPANT = 1;
  }
}