添加基础的插件功能

conf/etcd.go

@@ -14,9 +14,10 @@ import (
 var (
 	configPath = "/logagent/config/"
 	statusPath = "/logagent/active/"
+	topicPath = "/logagent/topic/"
 )
 
-type LogagentConfig []byte
+type EtcdValue []byte
 
 var cli *clientv3.Client
 
@@ -31,8 +32,9 @@ func Init(confPath string) {
 
 func initConnect() *clientv3.Client {
 
+	addressList := strings.Split(APPConfig.Etcd.Address, ",")
 	cli, err := clientv3.New(clientv3.Config{
-		Endpoints:   []string{APPConfig.Etcd.Address},
+		Endpoints:  addressList,
 		DialTimeout: 5 * time.Second,
 	})
 	if err != nil {
@@ -43,7 +45,7 @@ func initConnect() *clientv3.Client {
 	return cli
 }
 
-func GetAllConfFromEtcd() []LogagentConfig {
+func GetAllConfFromEtcd() []EtcdValue {
 
 	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
 	resp, err := cli.Get(ctx, configPath, clientv3.WithPrefix(), clientv3.WithSort(clientv3.SortByKey, clientv3.SortDescend))
@@ -52,12 +54,10 @@ func GetAllConfFromEtcd() []LogagentConfig {
 		panic(fmt.Sprintf("get failed, err:%s \n", err))
 	}
 
-	configs := make([]LogagentConfig, 0)
+	configs := make([]EtcdValue, 0)
 
 	for _, etcdResult := range resp.Kvs {
 
-		
-
 		etcdKey := statusPath + string(etcdResult.Key[strings.LastIndex(string(etcdResult.Key), "/")+1:])
 
 		ctx, cancel = context.WithTimeout(context.Background(), time.Second)
@@ -82,6 +82,25 @@ func GetAllConfFromEtcd() []LogagentConfig {
 	return configs
 }
 
+
+func GetAllTopicFromEtcd() []EtcdValue {
+
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+	resp, err := cli.Get(ctx, topicPath, clientv3.WithPrefix(), clientv3.WithSort(clientv3.SortByKey, clientv3.SortDescend))
+	cancel()
+	if err != nil {
+		panic(fmt.Sprintf("get failed, err:%s \n", err))
+	}
+
+	configs := make([]EtcdValue, 0)
+
+	for _, etcdResult := range resp.Kvs {
+		configs = append(configs, etcdResult.Value)
+	}
+
+	return configs
+}
+
 func WatchLogConfToEtcd() clientv3.WatchChan {
 
 	wch := cli.Watch(context.Background(), configPath, clientv3.WithPrefix())

logtransfer.conff

-#### LogTransfer
-
-# Kafka配置
-[kafka]
-address=
-
-# Kafka配置
-[etcd]
-address=
-
-# ES 配置
-[es]
-address=
-bulk_size=50

transfer/collector.go

@@ -13,6 +13,26 @@ type Collector struct {
 	Topic string `json:"topic"`
 }
 
+type Topic struct {
+	Name     string
+	Label    string
+	PipeLine *PipeLine
+	Format   Formater
+}
+
+type TopicConfig struct {
+	Format         int                     `json:"format"`
+	Label          string                  `json:"label"`
+	Name           string                  `json:"name"`
+	PipelineConfig []PipeLinePluginsConfig `json:"piepline"`
+}
+
+type PipeLinePluginsConfig struct {
+	Label  string `json:"label"`
+	Name   string `json:"name"`
+	Params string `json:"params"`
+}
+
 // 加载所有的collector
 func loadCollectors() []Collector {
 	configs := conf.GetAllConfFromEtcd()
@@ -24,7 +44,7 @@ func loadCollectors() []Collector {
 		if err != nil {
 			log.Printf("json decode config(%s) err :  err: %s", v, err)
 		}
-		if currentCollector !=nil {
+		if currentCollector != nil {
 			log.Printf("Init config:%s ", v)
 			collectors = append(collectors, currentCollector...)
 		}
@@ -32,12 +52,74 @@ func loadCollectors() []Collector {
 	return collectors
 }
 
+func loadTopics() map[string]*Topic {
+	configs := conf.GetAllTopicFromEtcd()
+
+	topics := make(map[string]*Topic)
+
+	for _, v := range configs {
+
+		var currentTopic TopicConfig
+		err := json.Unmarshal(v, &currentTopic)
+		if err != nil {
+			log.Printf("json decode config(%s) err :  err: %s", v, err)
+		}
+		log.Printf("Init Topic:%s ", currentTopic.Label)
+		if currentTopic.PipelineConfig == nil {
+			log.Printf("get topic setting error:%s ", currentTopic.Label)
+		}
+
+		p := PipeLine{}
+
+
+		for _, v := range currentTopic.PipelineConfig {
+			
+		   makePiepline(&p,v)
+
+		}
+		var formatMethod Formater
+
+		switch currentTopic.Format {
+
+		case 1:
+			formatMethod = DefaultJsonLog
+		case 2:
+			formatMethod = FormatServiceWfLog
+		default:
+			formatMethod = DefaultLog
+
+		}
+		topics[currentTopic.Name] = &Topic{Name: currentTopic.Name, Label: currentTopic.Label, PipeLine: &p, Format: formatMethod}
+	}
+	return topics
+}
+
 // 收集所有需要监听的topic
-func ChooseTopic() map[string]bool {
+func ChooseTopic() map[*Topic]bool {
 	collector := loadCollectors()
-	topics := make(map[string]bool, 0)
+	topics := loadTopics()
+
+	ableTopics := make(map[*Topic]bool)
 	for _, v := range collector {
-		topics[v.Topic] = true
+		currentTopic := topics[v.Topic]
+		ableTopics[currentTopic] = true
 	}
-	return topics
+
+	return ableTopics
+}
+
+func makePiepline(p *PipeLine ,config PipeLinePluginsConfig){
+	if p.Current == nil {
+		current := pluginsBoard[config.Name]
+
+		if config.Params != "" {
+			current.setParams(config.Params)
+		}
+
+		p.Current = &current
+		p.Next = &PipeLine{}
+		log.Printf("install plugin :%s", config.Label,)
+		return
+	}
+    makePiepline(p.Next, config)
 }
\ No newline at end of file

transfer/format.go

 package transfer
 
 import (
+	"encoding/json"
 	"fmt"
 	"regexp"
 	"strings"
@@ -16,10 +17,10 @@ type Formater func(string, string) (Matedate, error)
 
 // service错误日志的处理
 func FormatServiceWfLog(sourceKey string, message string) (Matedate, error) {
-	result := make(Matedate, 0)
+	result := make(Matedate)
 	levelIndex := strings.Index(message, ":")
 	if levelIndex == -1 {
-		return result, fmt.Errorf("message format error.")
+		return result, fmt.Errorf("message format error")
 	}
 	// log.Println(message)
 	result["topic"] = sourceKey
@@ -49,9 +50,19 @@ func FormatServiceWfLog(sourceKey string, message string) (Matedate, error) {
 
 // service错误日志的处理
 func DefaultLog(sourceKey string, message string) (Matedate, error) {
-	result := make(Matedate, 0)
+	result := make(Matedate)
 	result["topic"] = sourceKey
 	result["message"] = message
 
 	return result, nil
 }
+
+// Json 格式的错误日志处理
+func DefaultJsonLog(sourceKey string, message string) (Matedate, error) {
+	result := make(Matedate)
+	err := json.Unmarshal([]byte(message), &result)
+	if err != nil {
+		return nil, err
+	}
+	return result, nil
+}

transfer/handler.go

 package transfer
 
 import (
+	"encoding/json"
 	"fmt"
+	"log"
 )
 
+var pluginsBoard = map[string]Plugin{
+	"Dump":&Dump{},
+	"Edit":&Edit{},
+	"SaveES":&SaveES{},
+}
+
 type Matedate map[string]interface{}
 
-type Handler func(Matedate) Matedate
+type Plugin interface {
+	Handle(Matedate) Matedate
+	setParams(string)
+}
 
 type PipeLine struct {
 	Next    *PipeLine
-	Current Handler
+	Current *Plugin
 }
 
 func (p PipeLine) Enter(m Matedate) Matedate {
@@ -18,30 +29,74 @@ func (p PipeLine) Enter(m Matedate) Matedate {
 		return m
 	}
 	if p.Next == nil {
-		return p.Current(m)
+		return (*p.Current).Handle(m)
 	}
-	return p.Next.Enter(p.Current(m))
+
+	return p.Next.Enter((*p.Current).Handle(m))
+}
+
+// 修改插件
+type Edit struct {
+	Params map[string]interface{}
 }
 
-// 持久化到ES
-func Edit(m Matedate) Matedate {
-	m["source"] = "logtranfers"
+func (p Edit) Handle(m Matedate) Matedate {
+	key := fmt.Sprintf("%s", p.Params["key"])
+	log.Println(key)
+	log.Println(p.Params["value"])
+	m[key] = p.Params["value"]
+	m["EDIT"] = "ok"
 	return m
 }
 
-// 持久化到ES
-func SaveES(m Matedate) Matedate {
+func (p *Edit) setParams(params string) {
+	var paramsValue map[string]interface{}
+	err := json.Unmarshal([]byte(params), &paramsValue)
+	if err != nil {
+		log.Printf("Edit Plugin json decode params(%s) err :  err: %s", params, err)
+	}
+	p.Params = paramsValue
+}
+
+// 持久化到ES插件
+type SaveES struct {
+	Params map[string]interface{}
+}
+
+func (p SaveES) Handle(m Matedate) Matedate {
 	messages <- m
 	return m
 }
 
+
+func (p *SaveES) setParams(params string) {
+	var paramsValue map[string]interface{}
+	err := json.Unmarshal([]byte(params), &paramsValue)
+	if err != nil {
+		log.Printf("SaveES Plugin json decode params(%s) err :  err: %s", params, err)
+	}
+	p.Params = paramsValue
+}
+
 // 打印
-func Dump(m Matedate) Matedate {
+type Dump struct {
+	Params map[string]interface{}
+}
 
+func (p *Dump) Handle(m Matedate) Matedate {
 	for k, v := range m {
 		fmt.Printf("%s : %s\n", k, v)
 	}
 	fmt.Println("------------")
 	return m
+}
 
+
+func (p Dump) setParams(params string) {
+	var paramsValue map[string]interface{}
+	err := json.Unmarshal([]byte(params), &paramsValue)
+	if err != nil {
+		log.Printf("Dump Plugin json decode params(%s) err :  err: %s", params, err)
+	}
+	p.Params = paramsValue
 }

transfer/kernel.go

@@ -19,7 +19,7 @@ import (
 var (
 	Start          = make(chan *Customer)
 	Close          = make(chan string)
-	CustomerManger = make(map[string]*Customer, 0)
+	CustomerManger = make(map[string]*Customer)
 	MaxRetryTime   = 10
 	mu             sync.Mutex
 	closeWg        sync.WaitGroup
@@ -37,15 +37,18 @@ func getRegisterTopics() (topics []string) {
 
 // 核心启动
 func Run(confPath string) {
+	// 加载配置
 	conf.Init(confPath)
+	// 初始化ES客户端
 	esClient, err := elastic.NewClient(elastic.SetSniff(false), elastic.SetURL(conf.APPConfig.Es.Address))
 	if err != nil {
 		fmt.Println("connect es error", err)
 		panic(err)
 	}
-
+    // 做一个master的上下文
 	ctx, cancel := context.WithCancel(context.Background())
 
+	// 
 	for i := 0; i < 3; i++ {
 		go MatedateSender(ctx, esClient)
 	}
@@ -72,20 +75,10 @@ func Run(confPath string) {
 	}()
 
 	for topic := range ChooseTopic() {
-		GroupID := topic + "_group"
-		r := queue.InitReader(topic, GroupID)
-
-		currentFormater := DefaultLog
-
-		// TODO:使用ETCD下发需要的pipe handler
-		if strings.Contains(topic, "service") {
-			currentFormater = FormatServiceWfLog
-		}
-		// Edit->Save->Dump 这个顺序
-		// pipe := &PipeLine{Current: Edit, Next: &PipeLine{Current: Dump, Next: &PipeLine{Current: SaveES, Next: nil}}}
 		
-		pipe := &PipeLine{Current: Edit, Next: &PipeLine{Current: SaveES, Next: nil}}
-		currentCustomer := &Customer{Reader: r, done: make(chan struct{}), HandlePipeline: pipe, Format: currentFormater}
+		GroupID := topic.Name + "_group"
+		r := queue.InitReader(topic.Name, GroupID)
+		currentCustomer := &Customer{Reader: r, done: make(chan struct{}), HandlePipeline: topic.PipeLine, Format: topic.Format}
 		log.Printf("Check Customer group of [%s] success!", GroupID)
 		Start <- currentCustomer
 	}
@@ -129,7 +122,7 @@ func ReadingMessage(ctx context.Context, c *Customer) {
 
 	// var trycount int
 	// var cstSh, _ = time.LoadLocation("Asia/Shanghai") //上海时区
-
+	var errMessage strings.Builder
 	for {
 		select {
 		case <-c.Listen():
@@ -143,16 +136,25 @@ func ReadingMessage(ctx context.Context, c *Customer) {
 
 			m, err := c.Reader.ReadMessage(ctx)
 
+			
 			if err != nil {
 				// 退出
 				// c.Exit()
-				log.Println(err)
+				errMessage.Reset()
+				errMessage.WriteString("Reader Error")
+				errMessage.WriteString(err.Error())
+				log.Println(errMessage.String())
+				
 				continue
 			}
 
 			matedata, err := c.Format(string(c.Reader.Config().Topic), string(m.Value))
 			if err != nil {
-				log.Println(err)
+				errMessage.Reset()
+				errMessage.WriteString("Format Error")
+				errMessage.WriteString(err.Error())
+				log.Println(errMessage.String())
+
 				continue
 			}
 			// 流入pipe