diff --git a/dialects/kafka/main.go b/dialects/kafka/main.go index 22c0997..7f95574 100644 --- a/dialects/kafka/main.go +++ b/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 } diff --git a/dialects/mock/main.go b/dialects/mock/main.go index fda6e27..892f781 100644 --- a/dialects/mock/main.go +++ b/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 diff --git a/dialects/mock/main_test.go b/dialects/mock/main_test.go index 5d32682..7ff8dc1 100644 --- a/dialects/mock/main_test.go +++ b/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") diff --git a/examples/mock/go.sum b/examples/mock/go.sum index 3d2b80d..2dbad2c 100644 --- a/examples/mock/go.sum +++ b/examples/mock/go.sum @@ -6,15 +6,28 @@ cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSR github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo= 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/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/eapache/go-resiliency v1.1.0/go.mod h1:kFI+JgMyC7bLPUVY133qvEBtVayf5mFgVsvEsIPBvNs= github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21/go.mod h1:+020luEh2TKB4/GOp8oxxtq0Daoen/Cii55CzbTV6DU= github.com/eapache/queue v1.1.0/go.mod h1:6eCeP0CKFpHLu8blIFXhExK/dRa7WDZfr6jVFPTqq+I= github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo= +github.com/go-chi/chi v4.0.2+incompatible/go.mod h1:eB3wogJHnLi3x/kFX2A+IbTBlXxmMeXJVKy9tTv1XzQ= 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-27,11 +40,14 @@ github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5a github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU= github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs= github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc= +github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg= github.com/googleapis/gax-go/v2 v2.0.5 h1:sjZBwGj9Jlw33ImPtvFviGYvseOtDM7hkSKB7+Tv3SM= github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk= github.com/gorilla/context v1.1.1/go.mod h1:kBGZzfjB9CEq2AlWe17Uuf7NDRt0dE0s8S51q0aT7Yg= github.com/gorilla/mux v1.6.2/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs= +github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4= +github.com/hashicorp/go-multierror v1.0.0/go.mod h1:dHtQlpGsu+cZNNAkkCN/P3hoUDHhCYQXV3UM06sGGrk= github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8= github.com/hashicorp/golang-lru v0.5.1 h1:0hERBMJE1eitiLkihrMvRVBYAkpHzc/J3QdDN+dAcgU= github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8= @@ -44,22 +60,45 @@ github.com/jeroenrinzema/commander/examples/mock-multiple-groups v0.0.0-20190530 github.com/jeroenrinzema/commander/examples/mock-multiple-groups v0.0.0-20190613124800-6c8bc78e3138/go.mod h1:0DeSCXOO2GXIi4n+FUWGS6o/pCI/ZBpsKebVuW6hIj8= github.com/jeroenrinzema/commander/examples/streaming v0.0.0-20190702094603-24861dd4d416/go.mod h1:7463oz3hsyxpJu+n9qvoXo63DISG29e8OXbSD/Jpx10= github.com/jeroenrinzema/commander/examples/zipkin v0.0.0-20190613124800-6c8bc78e3138/go.mod h1:0kH96eT7K8FRLOQj/93XMym10lFwlLKJD9MSthr90z0= +github.com/json-iterator/go 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golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA= golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE= @@ -88,7 +127,9 @@ golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJ golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20190423024810-112230192c58/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 v0.0.0-20190422165155-953cdadca894 h1:Cz4ceDQGXuKRnVBDTS23GTn/pU5OE2C0WrNTOYK1Uuc= @@ -100,6 +141,7 @@ golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3 golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs= golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk= golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ= +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= golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= @@ -122,6 +164,7 @@ google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c= google.golang.org/grpc v1.20.1 h1:Hz2g2wirWK7H0qIIhGIqRGTuMwTE8HEKFnDZZ7lm9NU= google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38= +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= diff --git a/internal/types/dialect.go b/internal/types/dialect.go index f9bf405..831fb41 100644 --- a/internal/types/dialect.go +++ b/internal/types/dialect.go @@ -3,9 +3,6 @@ package types // Dialect represents a commander dialect. // A dialect is responsible for the consumption/production of the targeted protocol. type Dialect interface { - // Assigned notifies a dialect about the assignment of the given topic - Assigned(topic Topic) - // Consumer returns the dialect consumer Consumer() Consumer @@ -17,9 +14,8 @@ type Dialect interface { // The user should implement the health check Healthy() bool - // Open notifies a dialect to open the dialect. - // No further topic assignments should be made. - Open() error + // Opens the given dialect to start accepting incoming and outgoing connections. + Open(topics []Topic) error // Close awaits till the consumer(s) and producer(s) of the given dialect are closed. // If an error is returned is the closing aborted and the error returned to the user. diff --git a/main.go b/main.go index c9e95e9..7bd9350 100644 --- a/main.go +++ b/main.go @@ -33,27 +33,12 @@ func NewClient(groups ...*Group) (*Client, error) { Groups: groups, } - topics := []types.Topic{} - dialects := []types.Dialect{} + appendMiddleware(middleware, groups) + topics := pullTopicsFromGroups(groups) + dialects := groupTopicsByDialect(topics) - for _, group := range groups { - group.Middleware = middleware - topics = append(topics, group.Topics...) - } - -topic: - for _, topic := range topics { - for _, dialect := range dialects { - if topic.Dialect() == dialect { - continue topic - } - } - - dialects = append(dialects, topic.Dialect()) - } - - for _, dialect := range dialects { - err := dialect.Open() + for dialect, topics := range dialects { + err := dialect.Open(topics) if err != nil { return nil, err } @@ -85,3 +70,32 @@ func (client *Client) Close() error { return nil } + +func pullTopicsFromGroups(groups []*Group) []types.Topic { + returned := []types.Topic{} + for _, group := range groups { + returned = append(returned, group.Topics...) + } + + return returned +} + +func appendMiddleware(middleware middleware.Use, groups []*Group) { + for _, group := range groups { + group.Middleware = middleware + } +} + +func groupTopicsByDialect(topics []types.Topic) map[types.Dialect][]types.Topic { + returned := map[types.Dialect][]types.Topic{} + for _, topic := range topics { + _, has := returned[topic.Dialect()] + if !has { + returned[topic.Dialect()] = []types.Topic{} + } + + returned[topic.Dialect()] = append(returned[topic.Dialect()], topic) + } + + return returned +}