mirror of
https://github.com/prometheus/prometheus.git
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479891c9be
This commits renames the RuleManager to Manager as the package name is 'rules' now. The unused layer of abstraction of the RuleManager interface is removed.
73 lines
1.8 KiB
Go
73 lines
1.8 KiB
Go
// Copyright 2013 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may 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, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package web
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import (
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"net/http"
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"sort"
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"sync"
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"github.com/prometheus/prometheus/rules"
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)
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// AlertStatus bundles alerting rules and the mapping of alert states to row
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// classes.
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type AlertStatus struct {
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AlertingRules []*rules.AlertingRule
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AlertStateToRowClass map[rules.AlertState]string
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}
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type byAlertStateSorter struct {
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alerts []*rules.AlertingRule
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}
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func (s byAlertStateSorter) Len() int {
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return len(s.alerts)
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}
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func (s byAlertStateSorter) Less(i, j int) bool {
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return s.alerts[i].State() > s.alerts[j].State()
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}
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func (s byAlertStateSorter) Swap(i, j int) {
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s.alerts[i], s.alerts[j] = s.alerts[j], s.alerts[i]
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}
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// AlertsHandler implements http.Handler.
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type AlertsHandler struct {
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RuleManager *rules.Manager
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PathPrefix string
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mutex sync.Mutex
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}
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func (h *AlertsHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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h.mutex.Lock()
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defer h.mutex.Unlock()
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alerts := h.RuleManager.AlertingRules()
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alertsSorter := byAlertStateSorter{alerts: alerts}
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sort.Sort(alertsSorter)
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alertStatus := AlertStatus{
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AlertingRules: alertsSorter.alerts,
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AlertStateToRowClass: map[rules.AlertState]string{
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rules.Inactive: "success",
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rules.Pending: "warning",
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rules.Firing: "danger",
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},
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}
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executeTemplate(w, "alerts", alertStatus, h.PathPrefix)
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}
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