82 lines
2.6 KiB
Go
82 lines
2.6 KiB
Go
// Licensed to Elasticsearch B.V. under one or more contributor
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// license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright
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// ownership. Elasticsearch B.V. licenses this file to you under
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// the Apache License, Version 2.0 (the "License"); you may
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// not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package metrics
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import (
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"github.com/elastic/beats/libbeat/common"
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"github.com/elastic/beats/libbeat/common/cfgwarn"
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"github.com/elastic/beats/libbeat/logp"
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"github.com/elastic/beats/metricbeat/mb"
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"github.com/elastic/beats/metricbeat/module/mongodb"
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"gopkg.in/mgo.v2/bson"
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)
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var debugf = logp.MakeDebug("mongodb.metrics")
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func init() {
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mb.Registry.MustAddMetricSet("mongodb", "metrics", New,
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mb.WithHostParser(mongodb.ParseURL),
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mb.DefaultMetricSet(),
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)
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}
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// MetricSet type defines all fields of the MetricSet
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// As a minimum it must inherit the mb.BaseMetricSet fields, but can be extended with
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// additional entries. These variables can be used to persist data or configuration between
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// multiple fetch calls.
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type MetricSet struct {
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*mongodb.MetricSet
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}
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// New creates a new instance of the MetricSet
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// Part of new is also setting up the configuration by processing additional
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// configuration entries if needed.
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func New(base mb.BaseMetricSet) (mb.MetricSet, error) {
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cfgwarn.Experimental("The mongodb metrics metricset is experimental.")
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ms, err := mongodb.NewMetricSet(base)
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if err != nil {
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return nil, err
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}
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return &MetricSet{ms}, nil
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}
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// Fetch methods implements the data gathering and data conversion to the right format
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// It returns the event which is then forward to the output. In case of an error, a
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// descriptive error must be returned.
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func (m *MetricSet) Fetch() (common.MapStr, error) {
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// instantiate direct connections to each of the configured Mongo hosts
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mongoSession, err := mongodb.NewDirectSession(m.DialInfo)
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if err != nil {
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return nil, err
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}
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defer mongoSession.Close()
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result := map[string]interface{}{}
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if err := mongoSession.DB("admin").Run(bson.D{{Name: "serverStatus", Value: 1}}, &result); err != nil {
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return nil, err
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}
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data, err := schema.Apply(result)
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if err != nil {
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return nil, err
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}
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return data, nil
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}
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