forked from circonus-labs/circonus-gometrics
/
rule_set.go
234 lines (189 loc) · 6.15 KB
/
rule_set.go
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// Copyright 2016 Circonus, Inc. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Rule Set API support - Fetch, Create, Update, Delete, and Search
// See: https://login.circonus.com/resources/api/calls/rule_set
package api
import (
"encoding/json"
"fmt"
"net/url"
"regexp"
"github.com/circonus-labs/circonus-gometrics/api/config"
)
// RuleSetRule defines a ruleset rule
type RuleSetRule struct {
Criteria string `json:"criteria"` // string
Severity uint `json:"severity"` // uint
Value interface{} `json:"value"` // BUG doc: string, api: actual type returned switches based on Criteria
Wait uint `json:"wait"` // uint
WindowingDuration uint `json:"windowing_duration,omitempty"` // uint
WindowingFunction *string `json:"windowing_function,omitempty"` // string or null
}
// RuleSet defines a ruleset. See https://login.circonus.com/resources/api/calls/rule_set for more information.
type RuleSet struct {
CheckCID string `json:"check"` // string
CID string `json:"_cid,omitempty"` // string
ContactGroups map[uint8][]string `json:"contact_groups"` // [] len 5
Derive *string `json:"derive,omitempty"` // string or null
Link *string `json:"link"` // string or null
MetricName string `json:"metric_name"` // string
MetricTags []string `json:"metric_tags"` // [] len >= 0
MetricType string `json:"metric_type"` // string
Notes *string `json:"notes"` // string or null
Parent *string `json:"parent,omitempty"` // string or null
Rules []RuleSetRule `json:"rules"` // [] len >= 1
Tags []string `json:"tags"` // [] len >= 0
}
// NewRuleSet returns a new RuleSet (with defaults if applicable)
func NewRuleSet() *RuleSet {
return &RuleSet{}
}
// FetchRuleSet retrieves rule set with passed cid.
func (a *API) FetchRuleSet(cid CIDType) (*RuleSet, error) {
if cid == nil || *cid == "" {
return nil, fmt.Errorf("Invalid rule set CID [none]")
}
rulesetCID := string(*cid)
matched, err := regexp.MatchString(config.RuleSetCIDRegex, rulesetCID)
if err != nil {
return nil, err
}
if !matched {
return nil, fmt.Errorf("Invalid rule set CID [%s]", rulesetCID)
}
result, err := a.Get(rulesetCID)
if err != nil {
return nil, err
}
if a.Debug {
a.Log.Printf("[DEBUG] fetch rule set, received JSON: %s", string(result))
}
ruleset := &RuleSet{}
if err := json.Unmarshal(result, ruleset); err != nil {
return nil, err
}
return ruleset, nil
}
// FetchRuleSets retrieves all rule sets available to API Token.
func (a *API) FetchRuleSets() (*[]RuleSet, error) {
result, err := a.Get(config.RuleSetPrefix)
if err != nil {
return nil, err
}
var rulesets []RuleSet
if err := json.Unmarshal(result, &rulesets); err != nil {
return nil, err
}
return &rulesets, nil
}
// UpdateRuleSet updates passed rule set.
func (a *API) UpdateRuleSet(cfg *RuleSet) (*RuleSet, error) {
if cfg == nil {
return nil, fmt.Errorf("Invalid rule set config [nil]")
}
rulesetCID := string(cfg.CID)
matched, err := regexp.MatchString(config.RuleSetCIDRegex, rulesetCID)
if err != nil {
return nil, err
}
if !matched {
return nil, fmt.Errorf("Invalid rule set CID [%s]", rulesetCID)
}
jsonCfg, err := json.Marshal(cfg)
if err != nil {
return nil, err
}
if a.Debug {
a.Log.Printf("[DEBUG] update rule set, sending JSON: %s", string(jsonCfg))
}
result, err := a.Put(rulesetCID, jsonCfg)
if err != nil {
return nil, err
}
ruleset := &RuleSet{}
if err := json.Unmarshal(result, ruleset); err != nil {
return nil, err
}
return ruleset, nil
}
// CreateRuleSet creates a new rule set.
func (a *API) CreateRuleSet(cfg *RuleSet) (*RuleSet, error) {
if cfg == nil {
return nil, fmt.Errorf("Invalid rule set config [nil]")
}
jsonCfg, err := json.Marshal(cfg)
if err != nil {
return nil, err
}
if a.Debug {
a.Log.Printf("[DEBUG] create rule set, sending JSON: %s", string(jsonCfg))
}
resp, err := a.Post(config.RuleSetPrefix, jsonCfg)
if err != nil {
return nil, err
}
ruleset := &RuleSet{}
if err := json.Unmarshal(resp, ruleset); err != nil {
return nil, err
}
return ruleset, nil
}
// DeleteRuleSet deletes passed rule set.
func (a *API) DeleteRuleSet(cfg *RuleSet) (bool, error) {
if cfg == nil {
return false, fmt.Errorf("Invalid rule set config [nil]")
}
return a.DeleteRuleSetByCID(CIDType(&cfg.CID))
}
// DeleteRuleSetByCID deletes rule set with passed cid.
func (a *API) DeleteRuleSetByCID(cid CIDType) (bool, error) {
if cid == nil || *cid == "" {
return false, fmt.Errorf("Invalid rule set CID [none]")
}
rulesetCID := string(*cid)
matched, err := regexp.MatchString(config.RuleSetCIDRegex, rulesetCID)
if err != nil {
return false, err
}
if !matched {
return false, fmt.Errorf("Invalid rule set CID [%s]", rulesetCID)
}
_, err = a.Delete(rulesetCID)
if err != nil {
return false, err
}
return true, nil
}
// SearchRuleSets returns rule sets matching the specified search
// query and/or filter. If nil is passed for both parameters all
// rule sets will be returned.
func (a *API) SearchRuleSets(searchCriteria *SearchQueryType, filterCriteria *SearchFilterType) (*[]RuleSet, error) {
q := url.Values{}
if searchCriteria != nil && *searchCriteria != "" {
q.Set("search", string(*searchCriteria))
}
if filterCriteria != nil && len(*filterCriteria) > 0 {
for filter, criteria := range *filterCriteria {
for _, val := range criteria {
q.Add(filter, val)
}
}
}
if q.Encode() == "" {
return a.FetchRuleSets()
}
reqURL := url.URL{
Path: config.RuleSetPrefix,
RawQuery: q.Encode(),
}
result, err := a.Get(reqURL.String())
if err != nil {
return nil, fmt.Errorf("[ERROR] API call error %+v", err)
}
var rulesets []RuleSet
if err := json.Unmarshal(result, &rulesets); err != nil {
return nil, err
}
return &rulesets, nil
}