implement nats_jetstream using new jetstream package

Signed-off-by: stephen-totty-hpe <stephen.totty@hpe.com>

protocol/nats_jetstream/v2/go.mod

@@ -6,7 +6,7 @@ replace github.com/cloudevents/sdk-go/v2 => ../../../v2
 
 require (
 	github.com/cloudevents/sdk-go/v2 v2.14.0
-	github.com/nats-io/nats.go v1.31.0
+	github.com/nats-io/nats.go v1.36.0
 )
 
 require (
@@ -16,11 +16,12 @@ require (
 	github.com/klauspost/compress v1.17.2 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
-	github.com/nats-io/nkeys v0.4.6 // indirect
+	github.com/nats-io/nkeys v0.4.7 // indirect
 	github.com/nats-io/nuid v1.0.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/stretchr/testify v1.8.4 // indirect
-	golang.org/x/crypto v0.17.0 // indirect
-	golang.org/x/sys v0.15.0 // indirect
+	golang.org/x/crypto v0.18.0 // indirect
+	golang.org/x/sys v0.16.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

protocol/nats_jetstream/v2/go.sum

@@ -14,10 +14,10 @@ github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
 github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
-github.com/nats-io/nats.go v1.31.0 h1:/WFBHEc/dOKBF6qf1TZhrdEfTmOZ5JzdJ+Y3m6Y/p7E=
-github.com/nats-io/nats.go v1.31.0/go.mod h1:di3Bm5MLsoB4Bx61CBTsxuarI36WbhAwOm8QrW39+i8=
-github.com/nats-io/nkeys v0.4.6 h1:IzVe95ru2CT6ta874rt9saQRkWfe2nFj1NtvYSLqMzY=
-github.com/nats-io/nkeys v0.4.6/go.mod h1:4DxZNzenSVd1cYQoAa8948QY3QDjrHfcfVADymtkpts=
+github.com/nats-io/nats.go v1.36.0 h1:suEUPuWzTSse/XhESwqLxXGuj8vGRuPRoG7MoRN/qyU=
+github.com/nats-io/nats.go v1.36.0/go.mod h1:Ubdu4Nh9exXdSz0RVWRFBbRfrbSxOYd26oF0wkWclB8=
+github.com/nats-io/nkeys v0.4.7 h1:RwNJbbIdYCoClSDNY7QVKZlyb/wfT6ugvFCiKy6vDvI=
+github.com/nats-io/nkeys v0.4.7/go.mod h1:kqXRgRDPlGy7nGaEDMuYzmiJCIAAWDK0IMBtDmGD0nc=
 github.com/nats-io/nuid v1.0.1 h1:5iA8DT8V7q8WK2EScv2padNa/rTESc1KdnPw4TC2paw=
 github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OSON2c=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
@@ -30,10 +30,12 @@ github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXl
 go.uber.org/atomic v1.4.0 h1:cxzIVoETapQEqDhQu3QfnvXAV4AlzcvUCxkVUFw3+EU=
 go.uber.org/multierr v1.1.0 h1:HoEmRHQPVSqub6w2z2d2EOVs2fjyFRGyofhKuyDq0QI=
 go.uber.org/zap v1.10.0 h1:ORx85nbTijNz8ljznvCMR1ZBIPKFn3jQrag10X2AsuM=
-golang.org/x/crypto v0.17.0 h1:r8bRNjWL3GshPW3gkd+RpvzWrZAwPS49OmTGZ/uhM4k=
-golang.org/x/crypto v0.17.0/go.mod h1:gCAAfMLgwOJRpTjQ2zCCt2OcSfYMTeZVSRtQlPC7Nq4=
-golang.org/x/sys v0.15.0 h1:h48lPFYpsTvQJZF4EKyI4aLHaev3CxivZmv7yZig9pc=
-golang.org/x/sys v0.15.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/crypto v0.18.0 h1:PGVlW0xEltQnzFZ55hkuX5+KLyrMYhHld1YHO4AKcdc=
+golang.org/x/crypto v0.18.0/go.mod h1:R0j02AL6hcrfOiy9T4ZYp/rcWeMxM3L6QYxlOuEG1mg=
+golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU=
+golang.org/x/sys v0.16.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
+golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

protocol/nats_jetstream/v2/options.go

@@ -9,9 +9,23 @@ import (
 	"errors"
 
 	"github.com/nats-io/nats.go"
+	"github.com/nats-io/nats.go/jetstream"
 )
 
 var ErrInvalidQueueName = errors.New("invalid queue name for QueueSubscriber")
+var ErrNoConsumerConfig = errors.New("no consumer config was given")
+var ErrNoJetstream = errors.New("no jetstream implementation provided")
+var ErrMoreThanOneStream = errors.New("more than one stream for given filter subjects")
+var ErrMoreThanOneConsumerConfig = errors.New("more than one consumer config given")
+
+// ConsumerType - consumer types that have configurations defined in jetstream package
+type ConsumerType int
+
+const (
+	ConsumerType_Unknown ConsumerType = iota
+	ConsumerType_Ordinary
+	ConsumerType_Ordered
+)
 
 // NatsOptions is a helper function to group a variadic nats.ProtocolOption into
 // []nats.Option that can be used by either Sender, Consumer or Protocol
@@ -38,6 +52,14 @@ func WithSenderOptions(opts ...SenderOption) ProtocolOption {
 
 type SenderOption func(*Sender) error
 
+// WithPublishOptions configures the Sender
+func WithPublishOptions(publishOpts []jetstream.PublishOpt) SenderOption {
+	return func(s *Sender) error {
+		s.PublishOpts = publishOpts
+		return nil
+	}
+}
+
 type ConsumerOption func(*Consumer) error
 
 // WithQueueSubscriber configures the Consumer to join a queue group when subscribing
@@ -50,3 +72,33 @@ func WithQueueSubscriber(queue string) ConsumerOption {
 		return nil
 	}
 }
+
+// WithConsumerConfig configures the Consumer with the given config
+func WithConsumerConfig(consumerConfig *jetstream.ConsumerConfig) ConsumerOption {
+	return func(c *Consumer) error {
+		if c.OrderedConsumerConfig != nil {
+			return ErrMoreThanOneConsumerConfig
+		}
+		c.ConsumerConfig = consumerConfig
+		return nil
+	}
+}
+
+// WithOrderedConsumerConfig configures the Consumer with the given config
+func WithOrderedConsumerConfig(orderedConsumerConfig *jetstream.OrderedConsumerConfig) ConsumerOption {
+	return func(c *Consumer) error {
+		if c.ConsumerConfig != nil {
+			return ErrMoreThanOneConsumerConfig
+		}
+		c.OrderedConsumerConfig = orderedConsumerConfig
+		return nil
+	}
+}
+
+// WithPullConsumeOptions configures the Consumer with the given pullConsumeOpts
+func WithPullConsumeOptions(pullConsumeOpt []jetstream.PullConsumeOpt) ConsumerOption {
+	return func(c *Consumer) error {
+		c.PullConsumeOpt = pullConsumeOpt
+		return nil
+	}
+}

protocol/nats_jetstream/v2/protocol.go

@@ -12,6 +12,7 @@ import (
 	"github.com/cloudevents/sdk-go/v2/protocol"
 
 	"github.com/nats-io/nats.go"
+	"github.com/nats-io/nats.go/jetstream"
 )
 
 // Protocol is a reference implementation for using the CloudEvents binding
@@ -46,6 +47,24 @@ func NewProtocol(url, stream, sendSubject, receiveSubject string, natsOpts []nat
 	return p, nil
 }
 
+// NewProtocolV2 creates a new NATS protocol.
+func NewProtocolV2(ctx context.Context, url, stream, sendSubject string, natsOpts []nats.Option, jsOpts []jetstream.JetStreamOpt, opts ...ProtocolOption) (*Protocol, error) {
+	conn, err := nats.Connect(url, natsOpts...)
+	if err != nil {
+		return nil, err
+	}
+
+	p, err := NewProtocolFromConnV2(ctx, conn, stream, sendSubject, jsOpts, opts...)
+	if err != nil {
+		conn.Close()
+		return nil, err
+	}
+
+	p.connOwned = true
+
+	return p, nil
+}
+
 func NewProtocolFromConn(conn *nats.Conn, stream, sendSubject, receiveSubject string, jsOpts []nats.JSOpt, subOpts []nats.SubOpt, opts ...ProtocolOption) (*Protocol, error) {
 	var err error
 	p := &Protocol{
@@ -67,6 +86,36 @@ func NewProtocolFromConn(conn *nats.Conn, stream, sendSubject, receiveSubject st
 	return p, nil
 }
 
+func NewProtocolFromConnV2(ctx context.Context, conn *nats.Conn, stream, sendSubject string, jsOpts []jetstream.JetStreamOpt, opts ...ProtocolOption) (*Protocol, error) {
+	var err error
+	var js jetstream.JetStream
+	p := &Protocol{
+		Conn: conn,
+	}
+
+	if err := p.applyOptions(opts...); err != nil {
+		return nil, err
+	}
+
+	if js, err = jetstream.New(conn, jsOpts...); err != nil {
+		return nil, err
+	}
+	streamConfig := jetstream.StreamConfig{Name: stream, Subjects: []string{sendSubject}}
+	if _, err := js.CreateOrUpdateStream(ctx, streamConfig); err != nil {
+		return nil, err
+	}
+
+	if p.Consumer, err = NewConsumerFromConnV2(ctx, conn, jsOpts, p.consumerOptions...); err != nil {
+		return nil, err
+	}
+
+	if p.Sender, err = NewSenderFromConnV2(ctx, conn, sendSubject, jsOpts, p.senderOptions...); err != nil {
+		return nil, err
+	}
+
+	return p, nil
+}
+
 // Send implements Sender.Send
 func (p *Protocol) Send(ctx context.Context, in binding.Message, transformers ...binding.Transformer) error {
 	return p.Sender.Send(ctx, in, transformers...)