proto_files/orc8r/protos/prometheus/metrics.proto

// SPDX-FileCopyrightText: 2013 Prometheus Team.
// SPDX-FileCopyrightText: 2020 The Magma Authors.
// SPDX-FileCopyrightText: 2022 Open Networking Foundation <support@opennetworking.org>
//
// SPDX-License-Identifier: Apache-2.0

syntax = "proto2";

package io.prometheus.client;
option java_package = "io.prometheus.client";

// !!!!!!!!!!!!!
// DO NOT MODIFY
// !!!!!!!!!!!!!
// This file is a copy of the open source prometheus library.
// https://github.com/prometheus/client_model/blob/master/metrics.proto
// The 'go_package' change is made locally, and needs to be upstreamed.
option go_package = "github.com/prometheus/client_model/go";

message LabelPair {
  optional string name  = 1;
  optional string value = 2;
}

enum MetricType {
  COUNTER    = 0;
  GAUGE      = 1;
  SUMMARY    = 2;
  UNTYPED    = 3;
  HISTOGRAM  = 4;
}

message Gauge {
  optional double value = 1;
}

message Counter {
  optional double value = 1;
}

message Quantile {
  optional double quantile = 1;
  optional double value    = 2;
}

message Summary {
  optional uint64   sample_count = 1;
  optional double   sample_sum   = 2;
  repeated Quantile quantile     = 3;
}

message Untyped {
  optional double value = 1;
}

message Histogram {
  optional uint64 sample_count = 1;
  optional double sample_sum   = 2;
  repeated Bucket bucket       = 3; // Ordered in increasing order of upper_bound, +Inf bucket is optional.
}

message Bucket {
  optional uint64 cumulative_count = 1; // Cumulative in increasing order.
  optional double upper_bound = 2;      // Inclusive.
}

message Metric {
  repeated LabelPair label        = 1;
  optional Gauge     gauge        = 2;
  optional Counter   counter      = 3;
  optional Summary   summary      = 4;
  optional Untyped   untyped      = 5;
  optional Histogram histogram    = 7;
  optional int64     timestamp_ms = 6;
}

message MetricFamily {
  optional string     name   = 1;
  optional string     help   = 2;
  optional MetricType type   = 3;
  repeated Metric     metric = 4;
}