syntax = "proto3";

option java_multiple_files = true;
option java_package = "org.skywalking.apm.network.trace.proto";

import "Downstream.proto";

service TraceSegmentService {
    rpc collect (stream UpstreamSegment) returns (Downstream) {
    }
}

message UpstreamSegment {
    repeated string globalTraceIds = 1;
    bytes segment = 2; // the byte array of TraceSegmentObject
}

message TraceSegmentObject {
    string traceSegmentId = 1;
    repeated TraceSegmentReference refs = 2;
    repeated SpanObject spans = 3;
    int32 applicationId = 4;
    int32 applicationInstanceId = 5;
}

message TraceSegmentReference {
    string parentTraceSegmentId = 1;
    int32 parentSpanId = 2;
    int32 parentApplicationId = 3;
    string networkAddress = 4;
    int32 networkAddressId = 5;
    string entryServiceName = 6;
    int32 entryServiceId = 7;
    repeated string globalTraceIds = 8;
}

message SpanObject {
    int32 spanId = 1;
    int32 parentSpanId = 2;
    int64 startTime = 3;
    int64 endTime = 4;
    int32 operationNameId = 5;
    string operationName = 6;
    int32 peerId = 7;
    string peer = 8;
    SpanType spanType = 9;
    SpanLayer spanLayer = 10;
    int32 componentId = 11;
    string component = 12;
    bool isError = 13;
    repeated KeyValue tags = 14;
    repeated LogMessage logs = 15;
}

enum SpanType {
    Entry = 0;
    Exit = 1;
    Local = 2;
}

enum SpanLayer {
    Database = 0;
    RPCFramework = 1;
    Http = 2;
    MQ = 3;
}

message KeyValue {
    string key = 1;
    string value = 2;
}

message LogMessage {
    int64 time = 1;
    repeated KeyValue data = 2;
}