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flusher_checker.go
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/
flusher_checker.go
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// Copyright 2021 iLogtail Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package checker
import (
"encoding/json"
"fmt"
"regexp"
"sync"
"github.com/alibaba/ilogtail/pkg/logger"
"github.com/alibaba/ilogtail/pkg/pipeline"
"github.com/alibaba/ilogtail/pkg/protocol"
)
type FlusherChecker struct {
context pipeline.Context
LogGroup protocol.LogGroup
Lock sync.RWMutex
Block bool
}
func (p *FlusherChecker) Init(context pipeline.Context) error {
p.context = context
return nil
}
func (*FlusherChecker) Description() string {
return "checking flusher for logtail"
}
func (p *FlusherChecker) GetLogCount() int {
p.Lock.Lock()
defer p.Lock.Unlock()
return len(p.LogGroup.Logs)
}
func (p *FlusherChecker) SetUrgent(flag bool) {
}
func (p *FlusherChecker) CheckKeyValue(key, value string) error {
p.Lock.RLock()
defer p.Lock.RUnlock()
for _, log := range p.LogGroup.Logs {
for _, content := range log.Contents {
if key == content.GetKey() {
if value == content.GetValue() {
return nil
}
return fmt.Errorf("key : %s, expect : %s, real : %s", key, value, content.GetValue())
}
}
}
return fmt.Errorf("cannot find this key :" + key)
}
func (p *FlusherChecker) CheckKeyValueAny(key, value string) error {
p.Lock.RLock()
defer p.Lock.RUnlock()
for _, log := range p.LogGroup.Logs {
for _, content := range log.Contents {
if key == content.GetKey() {
if value == content.GetValue() {
return nil
}
}
}
}
return fmt.Errorf("cannot find this key :" + key + ", value :" + value)
}
func (p *FlusherChecker) CheckKeyValueRegex(key, valueRegex string) error {
p.Lock.RLock()
defer p.Lock.RUnlock()
for _, log := range p.LogGroup.Logs {
for _, content := range log.Contents {
if key == content.GetKey() {
if match, err := regexp.MatchString(valueRegex, content.GetValue()); err != nil || !match {
return fmt.Errorf("key : %s, regex : %s not match value : %s", key, valueRegex, content.GetValue())
}
return nil
}
}
}
return fmt.Errorf("cannot find this key :" + key)
}
func (p *FlusherChecker) CheckEveryLog(checker func(*protocol.Log) error) error {
p.Lock.RLock()
defer p.Lock.RUnlock()
for _, log := range p.LogGroup.Logs {
if err := checker(log); err != nil {
return err
}
}
return nil
}
func (p *FlusherChecker) CheckEveryKeyValue(checker func(string, string) error) error {
p.Lock.RLock()
defer p.Lock.RUnlock()
for _, log := range p.LogGroup.Logs {
for _, content := range log.Contents {
if err := checker(content.GetKey(), content.GetValue()); err != nil {
return err
}
}
}
return nil
}
func (p *FlusherChecker) Flush(projectName string, logstoreName string, configName string, logGroupList []*protocol.LogGroup) error {
p.Lock.Lock()
defer p.Lock.Unlock()
for _, logGroup := range logGroupList {
p.LogGroup.Topic = logGroup.Topic
p.LogGroup.LogTags = logGroup.LogTags
for _, log := range logGroup.Logs {
buf, _ := json.Marshal(log)
logger.Debug(p.context.GetRuntimeContext(), string(buf))
newLog := log
// ilogtail.CopySLSLog(log)
p.LogGroup.Logs = append(p.LogGroup.Logs, newLog)
}
}
return nil
}
// IsReady is ready to flush
func (p *FlusherChecker) IsReady(projectName string, logstoreName string, logstoreKey int64) bool {
return !p.Block
}
// Stop ...
func (p *FlusherChecker) Stop() error {
return nil
}
func init() {
pipeline.Flushers["flusher_checker"] = func() pipeline.Flusher {
return &FlusherChecker{}
}
}