V0.6.0

.github/workflows/go.yml

@@ -1,20 +1,17 @@
-name: Go
+name: Go tests
 on: [push]
 jobs:
-
   build:
-    name: Test
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go: [ '1.11.x', '1.12.x', '1.13.x' ]
+    name: Go ${{ matrix.go }}
     steps:
-
-    - name: Set up Go 1.12
+    - uses: actions/checkout@v1
+    - name: Setup go
       uses: actions/setup-go@v1
       with:
-        go-version: 1.12
-      id: go
-
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v1
-
+        go-version: ${{ matrix.go }}
     - name: Test
       run: go test ./... -v -mod=vendor -race -count=1 -coverprofile=coverage.txt -covermode=atomic -timeout=120s

README.md

@@ -1,6 +1,5 @@
 # Commander 🚀
 [![GoDoc](https://godoc.org/github.com/jeroenrinzema/commander?status.svg)](https://godoc.org/github.com/jeroenrinzema/commander)
-[![Build Status](https://travis-ci.org/jeroenrinzema/commander.svg?branch=master)](https://travis-ci.org/jeroenrinzema/commander)
 [![Coverage](https://codecov.io/gh/jeroenrinzema/commander/branch/master/graph/badge.svg)](https://codecov.io/gh/jeroenrinzema/commander)
 [![Coverage Report](https://goreportcard.com/badge/github.com/jeroenrinzema/commander)](https://goreportcard.com/report/github.com/jeroenrinzema/commander)
 
@@ -9,7 +8,7 @@ Commander is Go library for writing event-driven applications. Enabling event so
 ## Getting started
 
 1. [🚀 Examples](https://github.com/jeroenrinzema/commander/tree/master/examples)
-1. [📚 Documentation](https://godoc.org/github.com/jeroenrinzema/commander)
+2. [📚 Documentation](https://godoc.org/github.com/jeroenrinzema/commander)
 
 ---
 

dialects/README.md

@@ -1,9 +1,10 @@
 # Dialect
 
-A commander dialects is responsible for the consumption/production of messages.
-Check out the [dialect interface](https://github.com/jeroenrinzema/commander/blob/master/dialect.go) to see which methods have to be available to a dialect.
-
-On construction of the commander instance is a connectionstring and available groups passed which is given to the dialect.
-The dialect could when nessasery setup/initialize the given groups/connectionstring on for it's targeted protocol (ex: Kafka, RabbitMQ)
-
-Below is a example mocking dialect shown that allowes messages to be consumed and produced in-memory. This is a very simple example and is not safe for concurrent actions.
+- [Kafka](https://github.com/jeroenrinzema/commander/tree/master/dialects/kafka)
+- [Mock](https://github.com/jeroenrinzema/commander/tree/master/dialects/mock)
+- Redis
+- RabbitMQ
+- SQL
+- Websocket
+- io.Reader/io.Writer
+- NATS

dialects/kafka/consumer/main.go

@@ -171,7 +171,7 @@ func (client *Client) Claim(consumed *sarama.ConsumerMessage) (err error) {
 
 		select {
 		case subscription.messages <- message:
-			result := message.Await()
+			result := message.Finally()
 			if result != nil {
 				return ErrRetry
 			}

dialects/kafka/main.go

@@ -10,7 +10,6 @@ import (
 // Dialect represents the kafka dialect
 type Dialect struct {
 	Connection Config
-	Topics     []types.Topic
 	Config     *sarama.Config
 
 	consumer *consumer.Client
@@ -53,14 +52,9 @@ func (dialect *Dialect) Producer() types.Producer {
 	return dialect.producer
 }
 
-// Assigned is called when a topic gets created
-func (dialect *Dialect) Assigned(topic types.Topic) {
-	dialect.Topics = append(dialect.Topics, topic)
-}
-
 // Open opens a kafka consumer and producer
-func (dialect *Dialect) Open() (err error) {
-	err = dialect.consumer.Connect(dialect.Connection.Brokers, dialect.Config, dialect.Connection.InitialOffset, dialect.Topics...)
+func (dialect *Dialect) Open(topics []types.Topic) (err error) {
+	err = dialect.consumer.Connect(dialect.Connection.Brokers, dialect.Config, dialect.Connection.InitialOffset, topics...)
 	if err != nil {
 		return err
 	}

dialects/kafka/metadata/message.go

@@ -8,6 +8,7 @@ import (
 
 	"github.com/Shopify/sarama"
 	"github.com/jeroenrinzema/commander"
+	"github.com/jeroenrinzema/commander/internal/metadata"
 	"github.com/jeroenrinzema/commander/internal/types"
 )
 
@@ -25,9 +26,9 @@ func MessageFromMessage(consumed *sarama.ConsumerMessage) *commander.Message {
 		Data:      consumed.Value,
 		Key:       consumed.Key,
 		Timestamp: consumed.Timestamp,
-		Ctx:       ctx,
 	}
 
+	message.NewCtx(ctx)
 	headers := map[string][]string{}
 
 headers:
@@ -61,19 +62,19 @@ headers:
 			message.EOS = message.EOS.Parse(string(record.Value))
 			break
 		case HeaderParentID:
-			message.Ctx = types.NewParentIDContext(message.Ctx, types.ParentID(record.Value))
+			message.NewCtx(metadata.NewParentIDContext(message.Ctx(), metadata.ParentID(record.Value)))
 			break
 		case HeaderParentTimestamp:
 			unix, err := strconv.ParseInt(string(record.Value), 10, 64)
 			if err != nil {
 				continue headers
 			}
 
-			time := types.ParentTimestamp(time.Unix(0, unix))
-			message.Ctx = types.NewParentTimestampContext(message.Ctx, time)
+			time := metadata.ParentTimestamp(time.Unix(0, unix))
+			message.NewCtx(metadata.NewParentTimestampContext(message.Ctx(), time))
 			break
 		default:
-			headers[key] = strings.Split(string(record.Value), types.HeaderValueDevider)
+			headers[key] = strings.Split(string(record.Value), metadata.HeaderValueDevider)
 			break
 		}
 	}
@@ -106,23 +107,23 @@ func MessageToMessage(produce *commander.Message) *sarama.ProducerMessage {
 		},
 	}
 
-	parent, has := types.ParentIDFromContext(produce.Ctx)
+	parent, has := metadata.ParentIDFromContext(produce.Ctx())
 	if has {
 		headers = append(headers, sarama.RecordHeader{
 			Key:   []byte(HeaderParentID),
 			Value: []byte(parent),
 		})
 	}
 
-	timestamp, has := types.ParentTimestampFromContext(produce.Ctx)
+	timestamp, has := metadata.ParentTimestampFromContext(produce.Ctx())
 	if has {
 		headers = append(headers, sarama.RecordHeader{
 			Key:   []byte(HeaderParentTimestamp),
 			Value: []byte(strconv.Itoa(int(time.Time(timestamp).UnixNano()))),
 		})
 	}
 
-	kv, has := types.HeaderFromContext(produce.Ctx)
+	kv, has := metadata.HeaderFromContext(produce.Ctx())
 	if has {
 		for key, value := range kv {
 			headers = append(headers, sarama.RecordHeader{

dialects/mock/consumer.go

@@ -44,7 +44,7 @@ func (consumer *Consumer) Emit(message *types.Message) {
 		for _, subscription := range collection.list {
 			message.Reset()
 			subscription.messages <- message
-			message.Await()
+			message.Finally()
 		}
 		collection.mutex.Unlock()
 		close(resolved)

dialects/mock/consumer_test.go

@@ -14,9 +14,10 @@ func TestConsumerConsumption(t *testing.T) {
 	topic := types.NewTopic("mock", dialect, types.EventMessage, types.DefaultMode)
 	message := types.Message{
 		Topic: topic,
-		Ctx:   context.Background(),
 	}
 
+	message.NewCtx(context.Background())
+
 	sink := make(chan bool)
 	messages, err := dialect.Consumer().Subscribe(topic)
 	if err != nil {
@@ -25,7 +26,7 @@ func TestConsumerConsumption(t *testing.T) {
 
 	go func() {
 		for message := range messages {
-			message.Next()
+			message.Ack()
 			close(sink)
 		}
 	}()

dialects/mock/main.go

@@ -47,15 +47,10 @@ type Dialect struct {
 
 // Open notifies a dialect to open the dialect.
 // No further topic assignments should be made.
-func (dialect *Dialect) Open() error {
+func (dialect *Dialect) Open([]types.Topic) error {
 	return nil
 }
 
-// Assigned notifies a dialect about the assignment of the given topic
-func (dialect *Dialect) Assigned(types.Topic) {
-	// ignore...
-}
-
 // Consumer returns the dialect consumer
 func (dialect *Dialect) Consumer() types.Consumer {
 	return dialect.consumer

dialects/mock/main_test.go

@@ -6,7 +6,7 @@ import "testing"
 func TestNewDialectConstruction(t *testing.T) {
 	dialect := NewDialect()
 
-	dialect.Open()
+	dialect.Open(nil)
 
 	if dialect.Consumer() == nil {
 		t.Fatal("no dialect consumer")

dialects/mock/producer_test.go

@@ -13,9 +13,9 @@ func TestProducerProduction(t *testing.T) {
 	topic := types.NewTopic("mock", dialect, types.EventMessage, types.DefaultMode)
 	message := types.Message{
 		Topic: topic,
-		Ctx:   context.Background(),
 	}
 
+	message.NewCtx(context.Background())
 	err := dialect.Producer().Publish(&message)
 	if err != nil {
 		t.Fatal(err)

examples/kafka/go.sum

@@ -9,6 +9,12 @@ github.com/Shopify/sarama v1.22.1 h1:exyEsKLGyCsDiqpV5Lr4slFi8ev2KiM3cP1KZ6vnCQ0
 github.com/Shopify/sarama v1.22.1/go.mod h1:FRzlvRpMFO/639zY1SDxUxkqH97Y0ndM5CbGj6oG3As=
 github.com/Shopify/toxiproxy v2.1.4+incompatible h1:TKdv8HiTLgE5wdJuEML90aBgNWsokNbMijUGhmcoBJc=
 github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
+github.com/ThreeDotsLabs/watermill v1.0.0/go.mod h1:gjVFKc8aN+vmEHw3pA0kh4mmuwHe02nyfghb6IWWiKE=
+github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
+github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
+github.com/cenkalti/backoff/v3 v3.0.0/go.mod h1:cIeZDE3IrqwwJl6VUwCN6trj1oXrTS4rc0ij+ULvLYs=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
@@ -20,18 +26,28 @@ github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21/go.mod h1
 github.com/eapache/queue v1.1.0 h1:YOEu7KNc61ntiQlcEeUIoDTJ2o8mQznoNvUhiigpIqc=
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+github.com/go-chi/chi v4.0.2+incompatible/go.mod h1:eB3wogJHnLi3x/kFX2A+IbTBlXxmMeXJVKy9tTv1XzQ=
+github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
+github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
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@@ -41,20 +57,40 @@ github.com/jeroenrinzema/commander/examples/mock v0.0.0-20190613124800-6c8bc78e3
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+github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
+github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
+github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
 github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a h1:9ZKAASQSHhDYGoxY8uLVpewe1GDZ2vu2Tr/vTdVAkFQ=
 github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
+github.com/renstrom/shortuuid v3.0.0+incompatible/go.mod h1:n18Ycpn8DijG+h/lLBQVnGKv1BCtTeXo8KKSbBOrQ8c=
+github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2 h1:SPIRibHv4MatM3XXNO2BJeFLZwZ2LvZgfQ5+UNI2im4=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
@@ -64,6 +100,7 @@ github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/xdg/scram v0.0.0-20180814205039-7eeb5667e42c/go.mod h1:lB8K/P019DLNhemzwFU4jHLhdvlE6uDZjXFejJXr49I=
 github.com/xdg/stringprep v1.0.0/go.mod h1:Jhud4/sHMO4oL310DaZAKk9ZaJ08SJfe+sJh0HrGL1Y=
+golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190404164418-38d8ce5564a5/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
@@ -75,18 +112,23 @@ golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181122145206-62eef0e2fa9b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190403152447-81d4e9dc473e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894 h1:Cz4ceDQGXuKRnVBDTS23GTn/pU5OE2C0WrNTOYK1Uuc=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180828015842-6cd1fcedba52/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
+gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=

examples/kafka/main.go

@@ -63,7 +63,7 @@ func main() {
 		key, err := uuid.NewV4()
 		if err != nil {
 			// Mark the message to be retried, this will reset the offset of the message topic, parition to the original message offset
-			message.Retry(err)
+			message.Nack()
 			return
 		}
 
@@ -94,7 +94,7 @@ func main() {
 			return
 		}
 
-		event.Next()
+		event.Ack()
 
 		w.Header().Set("Content-Type", "application/json")
 		json.NewEncoder(w).Encode(event)