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common.go
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common.go
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// pmm-managed
// Copyright (C) 2017 Percona LLC
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package ia
import (
"strings"
"time"
"github.com/golang/protobuf/ptypes"
"github.com/percona-platform/saas/pkg/alert"
"github.com/percona/pmm/api/managementpb"
iav1beta1 "github.com/percona/pmm/api/managementpb/ia"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/percona/pmm-managed/models"
)
func convertParamUnit(u string) iav1beta1.ParamUnit {
switch strings.ToLower(u) {
case "%":
return iav1beta1.ParamUnit_PERCENTAGE
case "s":
return iav1beta1.ParamUnit_SECONDS
default:
return iav1beta1.ParamUnit_PARAM_UNIT_INVALID
}
}
func convertTemplate(l *logrus.Entry, template templateInfo) (*iav1beta1.Template, error) {
t := &iav1beta1.Template{
Name: template.Name,
Summary: template.Summary,
Expr: template.Expr,
Params: make([]*iav1beta1.TemplateParam, 0, len(template.Params)),
For: ptypes.DurationProto(time.Duration(template.For)),
Severity: managementpb.Severity(template.Severity),
Labels: template.Labels,
Annotations: template.Annotations,
Source: template.Source,
Yaml: template.Yaml,
}
if template.CreatedAt != nil {
var err error
if t.CreatedAt, err = ptypes.TimestampProto(*template.CreatedAt); err != nil {
return nil, err
}
}
for _, p := range template.Params {
tp := &iav1beta1.TemplateParam{
Name: p.Name,
Summary: p.Summary,
Unit: convertParamUnit(p.Unit),
Type: convertParamType(p.Type),
}
switch p.Type {
case alert.Float:
value, err := p.GetValueForFloat()
if err != nil {
return nil, errors.Wrap(err, "failed to get value for float parameter")
}
fp := &iav1beta1.TemplateFloatParam{
HasDefault: true, // TODO remove or fill with valid value.
Default: float32(value), // TODO eliminate conversion.
}
if p.Range != nil {
min, max, err := p.GetRangeForFloat()
if err != nil {
return nil, errors.Wrap(err, "failed to get range for float parameter")
}
fp.HasMin = true // TODO remove or fill with valid value.
fp.Min = float32(min) // TODO eliminate conversion.,
fp.HasMax = true // TODO remove or fill with valid value.
fp.Max = float32(max) // TODO eliminate conversion.,
}
tp.Value = &iav1beta1.TemplateParam_Float{Float: fp}
t.Params = append(t.Params, tp)
default:
l.Warnf("Skipping unexpected parameter type %q for %q.", p.Type, template.Name)
}
}
return t, nil
}
func convertRule(l *logrus.Entry, rule *models.Rule, template templateInfo, channels []*models.Channel) (*iav1beta1.Rule, error) {
r := &iav1beta1.Rule{
RuleId: rule.ID,
Disabled: rule.Disabled,
Summary: rule.Summary,
Severity: convertSeverity(rule.Severity),
For: ptypes.DurationProto(rule.For),
}
var err error
r.CreatedAt, err = ptypes.TimestampProto(rule.CreatedAt)
if err != nil {
return nil, errors.Wrap(err, "failed to convert timestamp")
}
r.Template, err = convertTemplate(l, template)
if err != nil {
return nil, errors.Wrap(err, "failed to convert template")
}
r.Params, err = convertModelToRuleParams(rule.Params)
if err != nil {
return nil, errors.Wrap(err, "failed to convert rule parameters")
}
r.CustomLabels, err = rule.GetCustomLabels()
if err != nil {
return nil, errors.Wrap(err, "failed to load rule labels")
}
r.Filters = make([]*iav1beta1.Filter, len(rule.Filters))
for i, filter := range rule.Filters {
r.Filters[i] = &iav1beta1.Filter{
Type: convertModelToFilterType(filter.Type),
Key: filter.Key,
Value: filter.Val,
}
}
cm := make(map[string]*models.Channel)
for _, channel := range channels {
cm[channel.ID] = channel
}
for _, id := range rule.ChannelIDs {
channel, ok := cm[id]
if !ok {
l.Warningf("Skip missing channel with ID %s", id)
continue
}
c, err := convertChannel(channel)
if err != nil {
return nil, errors.Wrap(err, "failed to convert channel")
}
r.Channels = append(r.Channels, c)
}
return r, nil
}
func convertSeverity(severity models.Severity) managementpb.Severity {
switch severity {
case models.UnknownSeverity:
return managementpb.Severity_SEVERITY_INVALID
case models.EmergencySeverity:
return managementpb.Severity_SEVERITY_EMERGENCY
case models.AlertSeverity:
return managementpb.Severity_SEVERITY_ALERT
case models.CriticalSeverity:
return managementpb.Severity_SEVERITY_CRITICAL
case models.ErrorSeverity:
return managementpb.Severity_SEVERITY_ERROR
case models.WarningSeverity:
return managementpb.Severity_SEVERITY_WARNING
case models.NoticeSeverity:
return managementpb.Severity_SEVERITY_NOTICE
case models.InfoSeverity:
return managementpb.Severity_SEVERITY_INFO
case models.DebugSeverity:
return managementpb.Severity_SEVERITY_DEBUG
default:
return managementpb.Severity_SEVERITY_INVALID
}
}