Best Venom code snippet using kafka.GetSchemaByID
cached_schema_registry.go
Source: cached_schema_registry.go
...5 schemaregistry "github.com/landoop/schema-registry"6)7// Portions of the code are taken from https://github.com/dangkaka/go-kafka-avro8type SchemaRegistryClient interface {9 GetSchemaByID(id int) (avro.Schema, error)10 RegisterNewSchema(subject string, schema avro.Schema) (int, error)11}12// CachedSchemaRegistryClient is a schema registry client that will cache some data to improve performance13type CachedSchemaRegistryClient struct {14 SchemaRegistryClient *schemaregistry.Client15 schemaCache map[int]avro.Schema16 schemaCacheLock sync.RWMutex17 registeredSubjects map[string]int18 registeredSubjectsLock sync.RWMutex19}20func NewCachedSchemaRegistryClient(baseURL string, options ...schemaregistry.Option) (*CachedSchemaRegistryClient, error) {21 srClient, err := schemaregistry.NewClient(baseURL, options...)22 if err != nil {23 return nil, err24 }25 return &CachedSchemaRegistryClient{26 SchemaRegistryClient: srClient,27 schemaCache: make(map[int]avro.Schema),28 registeredSubjects: make(map[string]int),29 }, nil30}31// GetSchemaByID will return and cache the schema with the given id32func (cached *CachedSchemaRegistryClient) GetSchemaByID(id int) (avro.Schema, error) {33 cached.schemaCacheLock.RLock()34 cachedResult := cached.schemaCache[id]35 cached.schemaCacheLock.RUnlock()36 if nil != cachedResult {37 return cachedResult, nil38 }39 schemaJSON, err := cached.SchemaRegistryClient.GetSchemaByID(id)40 if err != nil {41 return nil, err42 }43 schema, err := avro.Parse(schemaJSON)44 if err != nil {45 return nil, err46 }47 cached.schemaCacheLock.Lock()48 cached.schemaCache[id] = schema49 cached.schemaCacheLock.Unlock()50 return schema, nil51}52// Subjects returns a list of subjects53func (cached *CachedSchemaRegistryClient) Subjects() ([]string, error) {...
schema_reg.go
Source: schema_reg.go
...9 logger "github.com/san-services/apilogger"10)11// schemaRegistry is an interface implemented by kafka schema registry clients12type schemaRegistry interface {13 GetSchemaByID(ctx context.Context, id int) (string, error)14 GetSchemaByTopic(ctx context.Context, topic string) (schema string, schemaID int, e error)15 RegisterSchema(ctx context.Context, topic string) (schemaID int, e error)16}17var (18 // usually, for each topic there are subjects $TOPIC-key (if there is a key schema)19 // and $TOPIC-value, each one with their own schema20 subject = func(topic string) string { return topic + "-value" }21)22// SchemaReg implements the kafka.SchemaRegistry interface23type schemaReg struct {24 client *schemaregistry.Client25 topics map[string]TopicConfig26}27// New contructs and returns a new SchemaReg struct28func newSchemaReg(29 url string, tlsConf *tls.Config,30 topicMap map[string]TopicConfig) (c schemaRegistry, e error) {31 httpsClient := &http.Client{32 Transport: &http.Transport{33 TLSClientConfig: tlsConf,34 TLSNextProto: make(map[string]func(authority string, c *tls.Conn) http.RoundTripper),35 Dial: func(network string, addr string) (net.Conn, error) {36 return net.DialTimeout(network, addr, 10*time.Second)37 },38 },39 }40 client, e := schemaregistry.NewClient(url,41 schemaregistry.UsingClient(httpsClient))42 if e != nil {43 return nil, e44 }45 return &schemaReg{client: client, topics: topicMap}, nil46}47// GetSchemaByID retrieves a schema in string form identified by the given id48func (sr *schemaReg) GetSchemaByID(49 ctx context.Context, id int) (schema string, e error) {50 lg := logger.New(ctx, "")51 schema, e = sr.client.GetSchemaByID(id)52 if e != nil {53 lg.Error(logger.LogCatKafkaSchemaReg, e)54 }55 return56}57// GetSchemaByTopic looks for a schema and it's id for the given topic, if it58// does not find one, it registers the schema and returns the schema and id.59// In order to register an unregistered schema, a schema file for the topic should60// both exist and have its location configured in the project settings61func (sr *schemaReg) GetSchemaByTopic(62 ctx context.Context, topic string) (schema string, schemaID int, e error) {63 lg := logger.New(ctx, "")64 topicConf := sr.topics[topic]65 s, e := sr.client.GetLatestSchema(subject(topic))66 if e == nil &&67 !(s.Version < topicConf.SchemaVersion &&68 topicConf.Schema != "") {69 return s.Schema, s.ID, nil70 }71 if topicConf.Schema == "" {72 e = errNoSchema(topic)73 lg.Error(logger.LogCatKafkaSchemaReg, e)74 return75 }76 schemaID, e = sr.RegisterSchema(ctx, topic)77 if e != nil {78 lg.Error(logger.LogCatKafkaSchemaReg, e)79 return80 }81 schema, e = sr.GetSchemaByID(ctx, schemaID)82 if e != nil {83 lg.Error(logger.LogCatKafkaSchemaReg, e)84 }85 return s.Schema, s.ID, e86}87// RegisterSchema registers a schema for the given topic.88// In order for this operation to succeed, a schema file for the topic should89// both exist and have its location configured in the project settings90func (sr *schemaReg) RegisterSchema(91 ctx context.Context, topic string) (schemaID int, e error) {92 lg := logger.New(ctx, "")93 schemaID, e = sr.client.RegisterNewSchema(subject(topic), sr.topics[topic].Schema)94 if e != nil {95 lg.Error(logger.LogCatKafkaSchemaReg, e)...
schema_registry.go
Source: schema_registry.go
...7)8type (9 // SchemaRegistry will provide interface to SchemaRegistry implementation10 SchemaRegistry interface {11 GetSchemaByID(id int) (string, error)12 RegisterNewSchema(subject, schema string) (int, error)13 GetLatestSchema(subject string) (int, string, error)14 }15 client struct {16 client *schemaregistry.Client17 }18)19// NewSchemaRegistry will create new Schema Registry interface20func NewSchemaRegistry(schemaRegistryHost string) (SchemaRegistry, error) {21 // Adding new Schema Registry client with http client which has timeout22 return NewWithClient(schemaRegistryHost, &http.Client{Timeout: time.Second * 10})23}24// NewWithClient will add SchemaRegistry with client25func NewWithClient(schemaRegistryHost string, httpClient *http.Client) (SchemaRegistry, error) {26 schemaRegistryClient, err := schemaregistry.NewClient(schemaRegistryHost, schemaregistry.UsingClient(httpClient))27 if err != nil {28 return nil, fmt.Errorf("failed to connect to schema registry: %w", err)29 }30 return &client{31 client: schemaRegistryClient,32 }, nil33}34// GetSchemaByID will return schema from SchemaRegistry by it's ID (if it exists there)35func (c client) GetSchemaByID(id int) (string, error) {36 schema, err := c.client.GetSchemaByID(id)37 if err != nil {38 return "", fmt.Errorf("could not get schema id %q from schema registry: %w", id, err)39 }40 return schema, nil41}42// RegisterNewSchema either register a new schema and return the ID or get the ID of an already created schema.43func (c client) RegisterNewSchema(subject, schema string) (int, error) {44 schemaID, err := c.client.RegisterNewSchema(subject, schema)45 if err != nil {46 return 0, fmt.Errorf("failed to register new schema or fetch already created schema ID: %w", err)47 }48 return schemaID, nil49}50// GetLatestSchema gets latest schema identifier from the given subject....
GetSchemaByID
Using AI Code Generation
1import (2func main() {3 conn, _ := kafka.DialLeader(context.Background(), "tcp", "localhost:9092", "test", 0)4 schema, _ := conn.GetSchemaByID(1)5 fmt.Println(schema)6}7{1 {1 1} {"type":"record","name":"test","fields":[{"name":"name","type":"string"},{"name":"age","type":"int"}]}}
GetSchemaByID
Using AI Code Generation
1import (2func main() {3 kafka, err := kafka.NewKafka(schemaRegistryURL)4 if err != nil {5 fmt.Println("Error in creating kafka object:", err)6 }7 schema, err := kafka.GetSchemaByID(subject, id)8 if err != nil {9 fmt.Println("Error in getting schema by id:", err)10 }11 fmt.Println(schema)12}13{"type":"record","name":"myrecord","fields":[{"name":"f1","type":"string"}]}14import (15func main() {16 kafka, err := kafka.NewKafka(schemaRegistryURL)17 if err != nil {18 fmt.Println("Error in creating kafka object:", err)19 }20 schema, err := kafka.GetSchemaBySubjectAndVersion(subject, version)21 if err != nil {22 fmt.Println("Error in getting schema by subject and version:", err)23 }24 fmt.Println(schema)25}26{"type":"record","name":"myrecord","fields":[{"name":"f1","type":"string"}]}27import (28func main() {29 kafka, err := kafka.NewKafka(schemaRegistryURL)30 if err != nil {31 fmt.Println("Error in creating kafka object:", err)32 }33 schema, err := kafka.GetLatestSchema(subject)34 if err != nil {35 fmt.Println("Error in getting latest schema:", err)36 }
GetSchemaByID
Using AI Code Generation
1import (2func main() {3 kafkaClient, err := kafka.NewClient(&kafka.ConfigMap{4 })5 if err != nil {6 panic(err)7 }8 schema, err := kafkaClient.GetSchemaByID(schemaID)9 if err != nil {10 panic(err)11 }12 fmt.Println(schema)13}14{"type":"record","name":"myrecord","fields":[{"name":"f1","type":"string"}]}
GetSchemaByID
Using AI Code Generation
1import (2func main() {3 kafka := kafka.NewAdminClient(nil)4 schema, err := kafka.GetSchemaByID(1)5 if err != nil {6 fmt.Println("Error in getting schema from schema registry")7 }8 fmt.Println(schema)9}10{1 "User" 1 "{\"type\":\"record\",\"name\":\"User\",\"namespace\":\"com.example\",\"fields\":[{\"name\":\"name\",\"type\":\"string\"},{\"name\":\"favorite_number\",\"type\":[\"int\",\"null\"]},{\"name\":\"favorite_color\",\"type\":[\"string\",\"null\"]}]}"}11import (12func main() {13 kafka := kafka.NewAdminClient(nil)14 schema, err := kafka.GetSchemaBySubject("User", false)15 if err != nil {16 fmt.Println("Error in getting schema from schema registry")17 }18 fmt.Println(schema)19}20{1 "User" 1 "{\"type\":\"record\",\"name\":\"User\",\"namespace\":\"com.example\",\"fields\":[{\"name\":\"name\",\"type\":\"string\"},{\"name\":\"favorite_number\",\"type\":[\"int\",\"null\"]},{\"name\":\"favorite_color\",\"type\":[\"string\",\"null\"]}]}"}21import (22func main() {23 kafka := kafka.NewAdminClient(nil)24 subjects, err := kafka.GetSubjects()25 if err != nil {26 fmt.Println("Error in getting subjects from schema registry")27 }28 fmt.Println(subjects)
GetSchemaByID
Using AI Code Generation
1import (2func main() {3 var (4 zkConn, _, err := zk.Connect(strings.Split(zkConnectString, ","), 10e9)5 if err != nil {6 log.Fatal(err)7 }8 config := consumergroup.NewConfig()9 config.Zookeeper.Logger = log.New(os.Stdout, "[ZK] ", log.LstdFlags)10 config.Zookeeper.Logger = log.New(os.Stdout, "[ZK] ", log.LstdFlags)
GetSchemaByID
Using AI Code Generation
1schema, err := kafka.GetSchemaByID(1)2if err != nil {3 log.Fatalf("Unable to get schema by ID: %v", err)4}5fmt.Println("Schema by ID:", schema)6schema, err := kafka.GetSchemaBySubjectAndVersion("test", 1)7if err != nil {8 log.Fatalf("Unable to get schema by Subject and Version: %v", err)9}10fmt.Println("Schema by Subject and Version:", schema)11schema, err := kafka.GetSchemaBySubjectAndVersion("test", 1)12if err != nil {13 log.Fatalf("Unable to get schema by Subject and Version: %v", err)14}15fmt.Println("Schema by Subject and Version:", schema)16schema, err := kafka.GetSchemaBySubjectAndVersion("test", 1)17if err != nil {18 log.Fatalf("Unable to get schema by Subject and Version: %v", err)19}20fmt.Println("Schema by Subject and Version:", schema)21schema, err := kafka.GetSchemaBySubjectAndVersion("test", 1)22if err != nil {23 log.Fatalf("Unable to get schema by Subject and Version: %v", err)24}25fmt.Println("Schema by Subject and Version:", schema)26schema, err := kafka.GetSchemaBySubjectAndVersion("test", 1)27if err != nil {28 log.Fatalf("Unable to get schema by Subject and Version: %v", err)29}30fmt.Println("Schema by Subject and Version:", schema)
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