feat(jobs): Introducing new feature

.github/label-config.yml

@@ -5,6 +5,16 @@ ci:
   - changed-files:
       - any-glob-to-any-file: [".github/**/*"]
 
+jobs:
+  - changed-files:
+      - any-glob-to-any-file:
+          - pkg/jobs/*.go
+          - domain/jobs/*.go
+          - pkg/actor/register_job.go
+          - pkg/actor/cancel_job.go
+          - pkg/command/job_command.go
+          - pkg/command/job_command_reply.go
+
 cache:
   - changed-files:
       - any-glob-to-any-file:

VERSION

@@ -1 +1 @@
-1.2.3
+1.3.0

domain/command/job.go

@@ -0,0 +1,11 @@
+package command
+
+type JobCommand interface {
+	ID() string
+	Type() CommandType
+	Delay() uint64
+	IsPeriodic() bool
+	JobId() string
+
+	Reply
+}

domain/command/reply.go

@@ -0,0 +1,9 @@
+package command
+
+import "net"
+
+type Reply interface {
+	ReplyError(conn net.Conn, response string)
+	ReplySuccess(conn net.Conn)
+	ReplyOK(conn net.Conn, response string)
+}

domain/command/store.go

@@ -1,15 +1,11 @@
 package command
 
-import "net"
-
 type StoreCommand interface {
 	ID() string
 	Type() CommandType
 	Key() string
 	Value() *string
 	TTL() *uint64
 
-	ReplyError(conn net.Conn, response string)
-	ReplySuccess(conn net.Conn)
-	ReplyOK(conn net.Conn, response string)
+	Reply
 }

domain/command/types.go

@@ -3,11 +3,19 @@ package command
 type CommandType = string
 
 const (
+	// Store commands
 	CommandGet    CommandType = "GET"
 	CommandSet    CommandType = "SET"
 	CommandDelete CommandType = "DELETE"
 
+	// Pubsub commands
 	CommandPublish     CommandType = "PUBLISH"
 	CommandSubscribe   CommandType = "SUBSCRIBE"
 	CommandUnsubscribe CommandType = "UNSUBSCRIBE"
+
+	// Job commands
+	CommandJobRegister CommandType = "JOB_REGISTER"
+	CommandJobStatus   CommandType = "JOB_STATUS"
+	CommandJobCancel   CommandType = "JOB_CANCEL"
+	CommandJobExecute  CommandType = "JOB_EXECUTE"
 )

domain/jobs/job.go

@@ -0,0 +1,8 @@
+package jobs
+
+type Job interface {
+	ID() string
+	Delay() uint64
+	IsPeriodic() bool
+	PeerId() string
+}

domain/jobs/manager.go

@@ -0,0 +1,9 @@
+package jobs
+
+type JobsManager interface {
+	Add(peerId string, delay uint64, isPeriodic bool) string
+	Get(id string) (Job, bool)
+	Cancel(id string)
+	Jobs() []Job
+	Chan() <-chan Job
+}

go.mod

@@ -2,6 +2,14 @@ module famcache
 
 go 1.21.6
 
-require github.com/pkg/errors v0.9.1
+require (
+	github.com/pkg/errors v0.9.1
+	github.com/stretchr/testify v1.9.0
+)
 
-require github.com/google/uuid v1.6.0 // indirect
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/google/uuid v1.6.0
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go.sum

@@ -1,4 +1,14 @@
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
+github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

pkg/actor/actor.go

@@ -3,9 +3,11 @@ package actor
 import (
 	"famcache/domain/cache"
 	"famcache/domain/connection"
+	"famcache/domain/jobs"
 	"famcache/domain/logger"
 	"famcache/domain/pubsub"
 	conn "famcache/pkg/connection"
+	job "famcache/pkg/jobs"
 	queue "famcache/pkg/pubsub"
 	"time"
 )
@@ -16,6 +18,7 @@ type Actor struct {
 	messagingQueue pubsub.Queue
 	peers          connection.PeersManager
 	queueTicker    time.Ticker
+	jobs           jobs.JobsManager
 }
 
 func (a *Actor) Peers() *connection.PeersManager {
@@ -26,12 +29,14 @@ func NewActor(logger *logger.Logger, cache *cache.Cache) Actor {
 	messagingQueue := queue.NewPubsubQueue()
 	peers := conn.NewPeersManager()
 	queueTicker := *time.NewTicker(1 * time.Second)
+	jobs := job.NewJobsManager()
 
 	return Actor{
 		logger,
 		cache,
 		messagingQueue,
 		peers,
 		queueTicker,
+		jobs,
 	}
 }

pkg/actor/actor_impl.go

@@ -1,5 +1,10 @@
 package actor
 
+import (
+	"famcache/domain/connection"
+	"famcache/pkg/command"
+)
+
 func (actor *Actor) ListenFailedMessages() {
 	for {
 		<-actor.queueTicker.C
@@ -22,3 +27,40 @@ func (actor *Actor) ListenFailedMessages() {
 		}
 	}
 }
+
+func (actor *Actor) ListenJobs() {
+	for {
+		job := <-actor.jobs.Chan()
+		peerId := job.PeerId()
+
+		peer := actor.peers.GetById(peerId)
+
+		if peer == nil {
+			continue
+		}
+
+		command := command.JobExecuteCommand(job.ID())
+
+		peer.Conn().Write([]byte(command))
+	}
+}
+
+func (actor *Actor) DisconnectPeer(peer connection.Peer) {
+	logger := *actor.logger
+
+	actor.peers.Remove(peer)
+	jobs := actor.jobs.Jobs()
+
+	for _, job := range jobs {
+		if job.PeerId() == peer.ID() {
+			actor.jobs.Cancel(job.ID())
+		}
+	}
+
+	logger.Info("Client disconnected: " + peer.ID())
+}
+
+func (actor *Actor) Start() {
+	go actor.ListenFailedMessages()
+	go actor.ListenJobs()
+}

pkg/actor/cancel_job.go

@@ -0,0 +1,16 @@
+package actor
+
+import (
+	"famcache/domain/command"
+	"famcache/domain/connection"
+)
+
+func (a *Actor) CancelJob(peer connection.Peer, query command.JobCommand) {
+	logger := *a.logger
+
+	a.jobs.Cancel(query.JobId())
+
+	logger.Info("Job canceled", "id", query.JobId())
+
+	query.ReplyOK(peer.Conn(), "OK")
+}

pkg/actor/register_job.go

@@ -0,0 +1,19 @@
+package actor
+
+import (
+	"famcache/domain/command"
+	"famcache/domain/connection"
+	"fmt"
+)
+
+func (actor *Actor) RegisterJob(peer connection.Peer, query command.JobCommand) {
+	logger := *actor.logger
+
+	id := actor.jobs.Add(peer.ID(), query.Delay(), query.IsPeriodic())
+
+	logger.Info(fmt.Sprintf("Job registered with id %s", id))
+
+	reply := fmt.Sprintf("%s %s", query.ID(), id)
+
+	query.ReplyOK(peer.Conn(), reply)
+}

pkg/command/command.go

@@ -7,12 +7,15 @@ import (
 )
 
 var strToCommandType = map[string]command.CommandType{
-	"GET":         command.CommandGet,
-	"SET":         command.CommandSet,
-	"DELETE":      command.CommandDelete,
-	"PUBLISH":     command.CommandPublish,
-	"SUBSCRIBE":   command.CommandSubscribe,
-	"UNSUBSCRIBE": command.CommandUnsubscribe,
+	"GET":          command.CommandGet,
+	"SET":          command.CommandSet,
+	"DELETE":       command.CommandDelete,
+	"PUBLISH":      command.CommandPublish,
+	"SUBSCRIBE":    command.CommandSubscribe,
+	"UNSUBSCRIBE":  command.CommandUnsubscribe,
+	"JOB_REGISTER": command.CommandJobRegister,
+	"JOB_STATUS":   command.CommandJobStatus,
+	"JOB CANCEL":   command.CommandJobCancel,
 }
 
 type AbstractCommand struct {
@@ -28,6 +31,10 @@ func (c *AbstractCommand) ToPubsubCommand() command.MessagingCommand {
 	return NewPubsubCommand(c.cType, c.query)
 }
 
+func (c *AbstractCommand) ToJobCommand() command.JobCommand {
+	return NewJobCommand(c.cType, c.query)
+}
+
 func (c *AbstractCommand) IsStoreCommand() bool {
 	return c.cType == command.CommandSet || c.cType == command.CommandGet || c.cType == command.CommandDelete
 }
@@ -36,6 +43,10 @@ func (c *AbstractCommand) IsMessagingCommand() bool {
 	return c.cType == command.CommandPublish || c.cType == command.CommandSubscribe || c.cType == command.CommandUnsubscribe
 }
 
+func (c *AbstractCommand) IsJobCommand() bool {
+	return c.cType == command.CommandJobRegister || c.cType == command.CommandJobStatus || c.cType == command.CommandJobCancel
+}
+
 func determineCommandType(query string) (command.CommandType, bool) {
 	parts := strings.Fields(strings.TrimSpace(query))
 

pkg/command/generator.go

@@ -28,3 +28,7 @@ func SubscribeCommand(id, topic string) string {
 func UnsubscribeCommand(id, topic string) string {
 	return fmt.Sprintf("%s UNSUBSCRIBE %s", id, topic)
 }
+
+func JobExecuteCommand(jobId string) string {
+	return fmt.Sprintf("JOB_EXECUTE %s\n", jobId)
+}