mirror of
https://github.com/nabbar/golib.git
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ef47435dcb
- create function to init prom metrics - add logger to log errors - add function to trigger a duration interval between 2 collect metrics - fix use unic prom metrics for all component - fix encoding info text - fix status duration
98 lines
2.2 KiB
Go
98 lines
2.2 KiB
Go
/*
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* MIT License
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*
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* Copyright (c) 2022 Nicolas JUHEL
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*
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*/
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package monitor
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import (
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"context"
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"github.com/nabbar/golib/monitor/types"
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)
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type fctMiddleWare func(m middleWare) error
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type middleWare interface {
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Context() context.Context
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Config() *runCfg
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Run(ctx context.Context)
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Next() error
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Add(fct fctMiddleWare)
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}
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type mdl struct {
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ctx context.Context
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cfg *runCfg
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crs int
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mdl []fctMiddleWare
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}
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func newMiddleware(cfg *runCfg, fct types.HealthCheck) middleWare {
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o := &mdl{
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ctx: nil,
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cfg: cfg,
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crs: 0,
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mdl: make([]fctMiddleWare, 0),
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}
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o.Add(func(m middleWare) error {
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return fct(m.Context())
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})
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return o
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}
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func (m *mdl) Context() context.Context {
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return m.ctx
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}
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func (m *mdl) Config() *runCfg {
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return m.cfg
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}
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func (m *mdl) Run(ctx context.Context) {
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var cnl context.CancelFunc
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m.ctx, cnl = context.WithTimeout(ctx, m.cfg.checkTimeout)
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defer cnl()
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m.crs = len(m.mdl)
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_ = m.Next()
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}
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func (m *mdl) Next() error {
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m.crs--
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if m.crs >= 0 && m.crs < len(m.mdl) {
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return m.mdl[m.crs](m)
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}
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return nil
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}
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func (m *mdl) Add(fct fctMiddleWare) {
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m.mdl = append(m.mdl, fct)
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}
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