[cmd/mdatagen] add field for configuring individual metric interval

cmd/mdatagen/internal/loader_test.go

@@ -4,9 +4,8 @@
 package internal
 
 import (
-	"testing"
-
 	"github.com/stretchr/testify/require"
+	"testing"
 
 	"go.opentelemetry.io/collector/component"
 	"go.opentelemetry.io/collector/pdata/pcommon"
@@ -239,6 +238,19 @@ func TestLoadMetadata(t *testing.T) {
 						},
 						Attributes: []AttributeName{"string_attr", "overridden_int_attr", "enum_attr", "slice_attr", "map_attr"},
 					},
+					"metric.with_interval": {
+						Enabled:     true,
+						Interval:    15,
+						Description: "Monotonic cumulative sum int metric with string input_type enabled by default and contains a customized interval of 15 seconds.",
+						Unit:        strPtr("s"),
+						Sum: &Sum{
+							MetricValueType:        MetricValueType{pmetric.NumberDataPointValueTypeInt},
+							MetricInputType:        MetricInputType{InputType: "string"},
+							AggregationTemporality: AggregationTemporality{Aggregation: pmetric.AggregationTemporalityCumulative},
+							Mono:                   Mono{Monotonic: true},
+						},
+						Attributes: []AttributeName{"string_attr", "overridden_int_attr", "enum_attr", "slice_attr", "map_attr"},
+					},
 				},
 				Telemetry: Telemetry{
 					Metrics: map[MetricName]Metric{

cmd/mdatagen/internal/metric.go

@@ -6,10 +6,9 @@ package internal // import "go.opentelemetry.io/collector/cmd/mdatagen/internal"
 import (
 	"errors"
 	"fmt"
-	"strings"
-
 	"golang.org/x/text/cases"
 	"golang.org/x/text/language"
+	"strings"
 
 	"go.opentelemetry.io/collector/component"
 	"go.opentelemetry.io/collector/confmap"
@@ -59,6 +58,8 @@ type Metric struct {
 
 	// Attributes is the list of attributes that the metric emits.
 	Attributes []AttributeName `mapstructure:"attributes"`
+
+	Interval uint64 `mapstructure:"interval"`
 }
 
 type Stability struct {

cmd/mdatagen/internal/samplereceiver/documentation.md

@@ -60,6 +60,24 @@ Monotonic cumulative sum int metric with string input_type enabled by default.
 | slice_attr | Attribute with a slice value. | Any Slice |
 | map_attr | Attribute with a map value. | Any Map |
 
+### metric.with_interval
+
+Monotonic cumulative sum int metric with string input_type enabled by default.
+
+| Unit | Metric Type | Value Type | Aggregation Temporality | Monotonic |
+| ---- | ----------- | ---------- | ----------------------- | --------- |
+| s | Sum | Int | Cumulative | true |
+
+#### Attributes
+
+| Name | Description | Values |
+| ---- | ----------- | ------ |
+| string_attr | Attribute with any string value. | Any Str |
+| state | Integer attribute with overridden name. | Any Int |
+| enum_attr | Attribute with a known set of string values. | Str: ``red``, ``green``, ``blue`` |
+| slice_attr | Attribute with a slice value. | Any Slice |
+| map_attr | Attribute with a map value. | Any Map |
+
 ## Optional Metrics
 
 The following metrics are not emitted by default. Each of them can be enabled by applying the following configuration: