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/*
 * 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 = "proto2";

package org.apache.inlong.sdk.commons.protocol;

enum INLONG_COMPRESSED_TYPE
{
  INLONG_NO_COMPRESS = 0;
  INLONG_GZ = 1;
  INLONG_SNAPPY = 2;
};

message MapFieldEntry {
  optional string key = 1;
  optional string value = 2;
}

message MessagePackHeader {
  required string inlongGroupId = 1;  //inlongGroupId 
  required string inlongStreamId = 2;  //inlongStreamId 
  required int64 packId = 3; //pack id
  required int64 packTime = 4; //pack time, milliseconds
  required int32 msgCount = 5;	//message count
  required int32 srcLength = 6;	//total length of raw messages body
  required int32 compressLen = 7;	//compress length of messages
  required INLONG_COMPRESSED_TYPE compressType = 8;  //compress type
  repeated MapFieldEntry params = 9;     //additional parameters
}

message MessageObj {
  required int64 msgTime = 1; //message generation time, milliseconds
  required string sourceIp = 2; // agent ip of message generation
  required bytes body = 3; //message body
  repeated MapFieldEntry params = 4;	//additional parameters
}

message MessageObjs {
  repeated MessageObj msgs = 1;      //message list
}

message MessagePack {
  required MessagePackHeader header = 1;  //message pack header
  required bytes compressBytes = 2;     //compressed bytes of MessageObjs serialization bytes, or MessageObjs serialization bytes(compressType=INLONG_NO_COMPRESS)
}

enum ResultCode{
  SUCCUSS = 0;				// success
  FAIL = -1;				// general error code
  ERR_VERSION_ERROR = -101;	// not support version
  ERR_LENGTH_ERROR = -102;	// error length, the length is negitive or over.
  ERR_REJECT = -103;        // Proxy rejects the request, because proxy can not process more data, or the cache cluster can not be connected.
  ERR_PACKAGE_ERROR = -104;	// request data can not be decoded with PB protocol.
  ERR_ID_ERROR = -105;		// inlongGroupId or inlongStreamId is bad; The length is wrong, or the CRC check is wrong.
}

message ResponseInfo {
  required ResultCode result = 1;	//response result
  required int64 packId = 2;	//pack id
}