[exporter/azuremonitor] Add metrics support

.chloggen/azuremonitorexporter-metrics.yaml

@@ -0,0 +1,16 @@
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: enhancement
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: azuremonitorexporter
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Adds metrics exporting
+
+# One or more tracking issues related to the change
+issues: [14915]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:

exporter/azuremonitorexporter/README.md

@@ -1,6 +1,6 @@
 # Azure Monitor Exporter
 
-This exporter sends logs and trace data to [Azure Monitor](https://docs.microsoft.com/azure/azure-monitor/).
+This exporter sends logs, traces and metrics to [Azure Monitor](https://docs.microsoft.com/azure/azure-monitor/).
 
 ## Configuration
 
@@ -58,3 +58,6 @@ All attributes are also mapped to custom properties if they are booleans or stri
 ### Logs
 This exporter saves log records to Application Insights `traces` table.
 [TraceId](https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/logs/data-model.md#field-traceid) is mapped to `operation_id` column and [SpanId](https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/logs/data-model.md#field-spanid) is mapped to `operation_parentId` column.
+
+### Traces
+This exporter saves traces to Application Insights `customMetrics` table.

exporter/azuremonitorexporter/factory.go

@@ -44,7 +44,8 @@ func NewFactory() component.ExporterFactory {
 		typeStr,
 		createDefaultConfig,
 		component.WithTracesExporter(f.createTracesExporter, stability),
-		component.WithLogsExporter(f.createLogsExporter, stability))
+		component.WithLogsExporter(f.createLogsExporter, stability),
+		component.WithMetricsExporter(f.createMetricsExporter, stability))
 }
 
 // Implements the interface from go.opentelemetry.io/collector/exporter/factory.go
@@ -91,6 +92,21 @@ func (f *factory) createLogsExporter(
 	return newLogsExporter(exporterConfig, tc, set)
 }
 
+func (f *factory) createMetricsExporter(
+	ctx context.Context,
+	set component.ExporterCreateSettings,
+	cfg config.Exporter,
+) (component.MetricsExporter, error) {
+	exporterConfig, ok := cfg.(*Config)
+
+	if !ok {
+		return nil, errUnexpectedConfigurationType
+	}
+
+	tc := f.getTransportChannel(exporterConfig, set.Logger)
+	return newMetricsExporter(exporterConfig, tc, set)
+}
+
 // Configures the transport channel.
 // This method is not thread-safe
 func (f *factory) getTransportChannel(exporterConfig *Config, logger *zap.Logger) transportChannel {

exporter/azuremonitorexporter/go.mod

@@ -9,26 +9,28 @@ require (
 	go.opentelemetry.io/collector/pdata v0.62.0
 	go.opentelemetry.io/collector/semconv v0.62.0
 	go.uber.org/zap v1.23.0
-	golang.org/x/net v0.0.0-20220225172249-27dd8689420f
+	golang.org/x/net v0.0.0-20220722155237-a158d28d115b
 )
 
 require (
-	code.cloudfoundry.org/clock v1.0.0 // indirect
+	code.cloudfoundry.org/clock v0.0.0-20180518195852-02e53af36e6c // indirect
 	github.com/cenkalti/backoff/v4 v4.1.3 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/fsnotify/fsnotify v1.5.4 // indirect
-	github.com/gofrs/uuid v4.0.0+incompatible // indirect
+	github.com/gofrs/uuid v3.3.0+incompatible // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/google/go-cmp v0.5.9 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/knadh/koanf v1.4.3 // indirect
-	github.com/kr/pretty v0.3.0 // indirect
+	github.com/kr/text v0.2.0 // indirect
 	github.com/mitchellh/copystructure v1.2.0 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
-	github.com/pelletier/go-toml v1.9.4 // indirect
+	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
+	github.com/pelletier/go-toml v1.9.5 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/stretchr/objx v0.4.0 // indirect
 	go.opencensus.io v0.23.0 // indirect
@@ -37,11 +39,11 @@ require (
 	go.opentelemetry.io/otel/trace v1.10.0 // indirect
 	go.uber.org/atomic v1.10.0 // indirect
 	go.uber.org/multierr v1.8.0 // indirect
-	golang.org/x/sys v0.0.0-20220808155132-1c4a2a72c664 // indirect
+	golang.org/x/sys v0.0.0-20220915200043-7b5979e65e41 // indirect
 	golang.org/x/text v0.3.7 // indirect
 	google.golang.org/genproto v0.0.0-20211208223120-3a66f561d7aa // indirect
 	google.golang.org/grpc v1.50.0 // indirect
 	google.golang.org/protobuf v1.28.1 // indirect
-	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
+	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )