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metrics.go
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metrics.go
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// Copyright 2018-2020 CERN
//
// Licensed 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.
//
// In applying this license, CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
package exporters
import (
"github.com/cs3org/reva/v2/pkg/mentix/config"
"github.com/cs3org/reva/v2/pkg/mentix/exchangers/exporters/metrics"
"github.com/cs3org/reva/v2/pkg/mentix/meshdata"
"github.com/pkg/errors"
"github.com/rs/zerolog"
)
// MetricsExporter exposes various Prometheus metrics.
type MetricsExporter struct {
BaseExporter
metrics *metrics.Metrics
}
// Activate activates the exporter.
func (exporter *MetricsExporter) Activate(conf *config.Configuration, log *zerolog.Logger) error {
if err := exporter.BaseExporter.Activate(conf, log); err != nil {
return err
}
// Create the metrics handler
m, err := metrics.New(conf, log)
if err != nil {
return errors.Wrap(err, "unable to create metrics")
}
exporter.metrics = m
// Store Metrics specifics
exporter.SetEnabledConnectors(conf.Exporters.Metrics.EnabledConnectors)
return nil
}
// Update is called whenever the mesh data set has changed to reflect these changes.
func (exporter *MetricsExporter) Update(meshDataSet meshdata.Map) error {
if err := exporter.BaseExporter.Update(meshDataSet); err != nil {
return err
}
// Data is read, so acquire a read lock
exporter.Locker().RLock()
defer exporter.Locker().RUnlock()
if err := exporter.metrics.Update(exporter.MeshData()); err != nil {
return errors.Wrap(err, "error while updating the metrics")
}
return nil
}
// GetID returns the ID of the exporter.
func (exporter *MetricsExporter) GetID() string {
return config.ExporterIDMetrics
}
// GetName returns the display name of the exporter.
func (exporter *MetricsExporter) GetName() string {
return "Metrics"
}
func init() {
registerExporter(&MetricsExporter{})
}