Extracted insert to database functionality (#1082)

agent/main.go

@@ -373,6 +373,7 @@ func handleIncomingMessageAsTapper(socketConnection *websocket.Conn) {
 func initializeDependencies() {
 	dependency.RegisterGenerator(dependency.ServiceMapGeneratorDependency, func() interface{} { return servicemap.GetDefaultServiceMapInstance() })
 	dependency.RegisterGenerator(dependency.OasGeneratorDependency, func() interface{} { return oas.GetDefaultOasGeneratorInstance() })
+	dependency.RegisterGenerator(dependency.EntriesInserter, func() interface{} { return api.GetBasenineEntryInserterInstance() })
 	dependency.RegisterGenerator(dependency.EntriesProvider, func() interface{} { return &entries.BasenineEntriesProvider{} })
 	dependency.RegisterGenerator(dependency.EntriesSocketStreamer, func() interface{} { return &api.BasenineEntryStreamer{} })
 	dependency.RegisterGenerator(dependency.EntryStreamerSocketConnector, func() interface{} { return &api.DefaultEntryStreamerSocketConnector{} })

agent/pkg/api/main.go

@@ -25,10 +25,7 @@ import (
 	"github.com/up9inc/mizu/agent/pkg/utils"
 
 	"github.com/up9inc/mizu/logger"
-	"github.com/up9inc/mizu/shared"
 	tapApi "github.com/up9inc/mizu/tap/api"
-
-	basenine "github.com/up9inc/basenine/client/go"
 )
 
 var k8sResolver *resolver.Resolver
@@ -103,20 +100,6 @@ func startReadingChannel(outputItems <-chan *tapApi.OutputChannelItem, extension
 		panic("Channel of captured messages is nil")
 	}
 
-BasenineReconnect:
-	connection, err := basenine.NewConnection(shared.BasenineHost, shared.BaseninePort)
-	if err != nil {
-		logger.Log.Errorf("Can't establish a new connection to Basenine server: %v", err)
-		time.Sleep(shared.BasenineReconnectInterval * time.Second)
-		goto BasenineReconnect
-	}
-	if err = connection.InsertMode(); err != nil {
-		logger.Log.Errorf("Insert mode call failed: %v", err)
-		connection.Close()
-		time.Sleep(shared.BasenineReconnectInterval * time.Second)
-		goto BasenineReconnect
-	}
-
 	disableOASValidation := false
 	ctx := context.Background()
 	doc, contractContent, router, err := loadOAS(ctx)
@@ -163,11 +146,9 @@ BasenineReconnect:
 
 		providers.EntryAdded(len(data))
 
-		if err = connection.SendText(string(data)); err != nil {
-			logger.Log.Errorf("An error occured while inserting a new record to database: %v", err)
-			connection.Close()
-			time.Sleep(shared.BasenineReconnectInterval * time.Second)
-			goto BasenineReconnect
+		entryInserter := dependency.GetInstance(dependency.EntriesInserter).(EntryInserter)
+		if err := entryInserter.Insert(mizuEntry); err != nil {
+			logger.Log.Errorf("Error inserting entry, err: %v", err)
 		}
 
 		serviceMapGenerator := dependency.GetInstance(dependency.ServiceMapGeneratorDependency).(servicemap.ServiceMapSink)

agent/pkg/api/socket_data_inserter.go

@@ -0,0 +1,71 @@
+package api
+
+import (
+	"encoding/json"
+	"fmt"
+	basenine "github.com/up9inc/basenine/client/go"
+	"github.com/up9inc/mizu/logger"
+	"github.com/up9inc/mizu/shared"
+	"github.com/up9inc/mizu/tap/api"
+	"sync"
+	"time"
+)
+
+type EntryInserter interface {
+	Insert(entry *api.Entry) error
+}
+
+type BasenineEntryInserter struct {
+	connection *basenine.Connection
+}
+
+var instance *BasenineEntryInserter
+var once sync.Once
+
+func GetBasenineEntryInserterInstance() *BasenineEntryInserter {
+	once.Do(func() {
+		instance = &BasenineEntryInserter{}
+	})
+
+	return instance
+}
+
+func (e *BasenineEntryInserter) Insert(entry *api.Entry) error {
+	if e.connection == nil {
+		e.connection = initializeConnection()
+	}
+
+	data, err := json.Marshal(entry)
+	if err != nil {
+		return fmt.Errorf("error marshling entry, err: %v", err)
+	}
+
+	if err := e.connection.SendText(string(data)); err != nil {
+		e.connection.Close()
+		e.connection = nil
+
+		return fmt.Errorf("error sending text to database, err: %v", err)
+	}
+
+	return nil
+}
+
+func initializeConnection() *basenine.Connection{
+	for {
+		connection, err := basenine.NewConnection(shared.BasenineHost, shared.BaseninePort)
+		if err != nil {
+			logger.Log.Errorf("Can't establish a new connection to Basenine server: %v", err)
+			time.Sleep(shared.BasenineReconnectInterval * time.Second)
+			continue
+		}
+
+		if err = connection.InsertMode(); err != nil {
+			logger.Log.Errorf("Insert mode call failed: %v", err)
+			connection.Close()
+			time.Sleep(shared.BasenineReconnectInterval * time.Second)
+			continue
+		}
+
+		return connection
+	}
+}

agent/pkg/dependency/type_names.go

@@ -5,6 +5,7 @@ type DependencyContainerType string
 const (
 	ServiceMapGeneratorDependency = "ServiceMapGeneratorDependency"
 	OasGeneratorDependency        = "OasGeneratorDependency"
+	EntriesInserter               = "EntriesInserter"
 	EntriesProvider               = "EntriesProvider"
 	EntriesSocketStreamer         = "EntriesSocketStreamer"
 	EntryStreamerSocketConnector  = "EntryStreamerSocketConnector"

tap/extensions/http/main.go

@@ -66,7 +66,7 @@ var grpcProtocol api.Protocol = api.Protocol{
 	BackgroundColor: "#244c5a",
 	ForegroundColor: "#ffffff",
 	FontSize:        11,
-	ReferenceLink:   "https://grpc.github.io/grpc/core/md_doc_statuscodes.html",
+	ReferenceLink:   "https://grpc.github.io/grpc/core/md_doc__p_r_o_t_o_c_o_l-_h_t_t_p2.html",
 	Ports:           []string{"80", "443", "8080", "50051"},
 	Priority:        0,
 }

tap/tcp_reassembly_stream.go

@@ -10,12 +10,6 @@ import (
 	"github.com/up9inc/mizu/tap/diagnose"
 )
 
-type ReassemblyStream interface {
-	Accept(tcp *layers.TCP, ci gopacket.CaptureInfo, dir reassembly.TCPFlowDirection, nextSeq reassembly.Sequence, start *bool, ac reassembly.AssemblerContext) bool
-	ReassembledSG(sg reassembly.ScatterGather, ac reassembly.AssemblerContext)
-	ReassemblyComplete(ac reassembly.AssemblerContext) bool
-}
-
 type tcpReassemblyStream struct {
 	ident      string
 	tcpState   *reassembly.TCPSimpleFSM
@@ -25,7 +19,7 @@ type tcpReassemblyStream struct {
 	tcpStream  api.TcpStream
 }
 
-func NewTcpReassemblyStream(ident string, tcp *layers.TCP, fsmOptions reassembly.TCPSimpleFSMOptions, stream api.TcpStream) ReassemblyStream {
+func NewTcpReassemblyStream(ident string, tcp *layers.TCP, fsmOptions reassembly.TCPSimpleFSMOptions, stream api.TcpStream) reassembly.Stream {
 	return &tcpReassemblyStream{
 		ident:      ident,
 		tcpState:   reassembly.NewTCPSimpleFSM(fsmOptions),