youtubebeat/vendor/github.com/elastic/beats/metricbeat/module/php_fpm/process/process.go

82 lines
2.7 KiB
Go

// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you 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.
package process
import (
"net/url"
"github.com/elastic/beats/libbeat/common/cfgwarn"
"github.com/elastic/beats/metricbeat/helper"
"github.com/elastic/beats/metricbeat/mb"
"github.com/elastic/beats/metricbeat/mb/parse"
"github.com/elastic/beats/metricbeat/module/php_fpm"
)
// init registers the MetricSet with the central registry as soon as the program
// starts. The New function will be called later to instantiate an instance of
// the MetricSet for each host defined in the module's configuration. After the
// MetricSet has been created then Fetch will begin to be called periodically.
func init() {
mb.Registry.AddMetricSet("php_fpm", "process", New, php_fpm.HostParser)
}
// MetricSet holds any configuration or state information. It must implement
// the mb.MetricSet interface. And this is best achieved by embedding
// mb.BaseMetricSet because it implements all of the required mb.MetricSet
// interface methods except for Fetch.
type MetricSet struct {
mb.BaseMetricSet
*helper.HTTP
}
// New creates a new instance of the MetricSet. New is responsible for unpacking
// any MetricSet specific configuration options if there are any.
func New(base mb.BaseMetricSet) (mb.MetricSet, error) {
cfgwarn.Beta("The php_fpm process metricset is beta")
http, err := helper.NewHTTP(base)
if err != nil {
return nil, err
}
return &MetricSet{
base,
http,
}, nil
}
// Fetch methods implements the data gathering and data conversion to the right
// format. It publishes the event which is then forwarded to the output. In case
// of an error set the Error field of mb.Event or simply call report.Error().
func (m *MetricSet) Fetch(report mb.ReporterV2) {
u, err := url.Parse(m.GetURI())
if err != nil {
report.Error(err)
return
}
u, err = parse.SetQueryParams(u, "full")
if err == nil {
m.SetURI(u.String())
}
content, err := m.HTTP.FetchContent()
if err != nil {
report.Error(err)
return
}
eventsMapping(report, content)
}