github.com/alibaba/ilogtail/pkg@v0.0.0-20250526110833-c53b480d046c/util/alarm.go (about)

     1  // Copyright 2021 iLogtail Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package util
    16  
    17  import (
    18  	"strconv"
    19  	"sync"
    20  	"time"
    21  
    22  	"github.com/alibaba/ilogtail/pkg/protocol"
    23  )
    24  
    25  var GlobalAlarm *Alarm
    26  var mu sync.Mutex
    27  
    28  var RegisterAlarms map[string]*Alarm
    29  var regMu sync.Mutex
    30  
    31  func RegisterAlarm(key string, alarm *Alarm) {
    32  	regMu.Lock()
    33  	defer regMu.Unlock()
    34  	RegisterAlarms[key] = alarm
    35  }
    36  
    37  func DeleteAlarm(key string) {
    38  	regMu.Lock()
    39  	defer regMu.Unlock()
    40  	delete(RegisterAlarms, key)
    41  }
    42  
    43  func RegisterAlarmsSerializeToPb(logGroup *protocol.LogGroup) {
    44  	regMu.Lock()
    45  	defer regMu.Unlock()
    46  	for _, alarm := range RegisterAlarms {
    47  		alarm.SerializeToPb(logGroup)
    48  	}
    49  }
    50  
    51  type AlarmItem struct {
    52  	Message string
    53  	Count   int
    54  }
    55  
    56  type Alarm struct {
    57  	AlarmMap map[string]*AlarmItem
    58  	Project  string
    59  	Logstore string
    60  }
    61  
    62  func (p *Alarm) Init(project, logstore string) {
    63  	mu.Lock()
    64  	p.AlarmMap = make(map[string]*AlarmItem)
    65  	p.Project = project
    66  	p.Logstore = logstore
    67  	mu.Unlock()
    68  }
    69  
    70  func (p *Alarm) Update(project, logstore string) {
    71  	mu.Lock()
    72  	defer mu.Unlock()
    73  	p.Project = project
    74  	p.Logstore = logstore
    75  }
    76  
    77  func (p *Alarm) Record(alarmType, message string) {
    78  	// donot record empty alarmType
    79  	if len(alarmType) == 0 {
    80  		return
    81  	}
    82  	mu.Lock()
    83  	alarmItem, existFlag := p.AlarmMap[alarmType]
    84  	if !existFlag {
    85  		alarmItem = &AlarmItem{}
    86  		p.AlarmMap[alarmType] = alarmItem
    87  	}
    88  	alarmItem.Message = message
    89  	alarmItem.Count++
    90  	mu.Unlock()
    91  }
    92  
    93  func (p *Alarm) SerializeToPb(logGroup *protocol.LogGroup) {
    94  	nowTime := time.Now()
    95  	mu.Lock()
    96  	for alarmType, item := range p.AlarmMap {
    97  		if item.Count == 0 {
    98  			continue
    99  		}
   100  		log := &protocol.Log{}
   101  		log.Contents = append(log.Contents, &protocol.Log_Content{Key: "project_name", Value: p.Project})
   102  		log.Contents = append(log.Contents, &protocol.Log_Content{Key: "category", Value: p.Logstore})
   103  		log.Contents = append(log.Contents, &protocol.Log_Content{Key: "alarm_type", Value: alarmType})
   104  		log.Contents = append(log.Contents, &protocol.Log_Content{Key: "alarm_count", Value: strconv.Itoa(item.Count)})
   105  		log.Contents = append(log.Contents, &protocol.Log_Content{Key: "alarm_message", Value: item.Message})
   106  		log.Contents = append(log.Contents, &protocol.Log_Content{Key: "ip", Value: GetIPAddress()})
   107  		protocol.SetLogTime(log, uint32(nowTime.Unix()))
   108  		logGroup.Logs = append(logGroup.Logs, log)
   109  		// clear after serialize
   110  		item.Count = 0
   111  		item.Message = ""
   112  	}
   113  	mu.Unlock()
   114  }
   115  
   116  func init() {
   117  	GlobalAlarm = new(Alarm)
   118  	GlobalAlarm.Init("", "")
   119  	RegisterAlarms = make(map[string]*Alarm)
   120  }