Ejemplo n.º 1
0
func (this *CachedSchemaRegistryClient) GetVersion(subject string, schema avro.Schema) (int32, error) {
	var schemaVersionMap map[avro.Schema]int32
	var exists bool
	if schemaVersionMap, exists = this.versionCache[subject]; !exists {
		schemaVersionMap = make(map[avro.Schema]int32)
		this.versionCache[subject] = schemaVersionMap
	}

	var version int32
	if version, exists = schemaVersionMap[schema]; exists {
		return version, nil
	}

	request, err := this.newDefaultRequest("POST",
		fmt.Sprintf(CHECK_IS_REGISTERED, subject),
		strings.NewReader(fmt.Sprintf("{\"schema\": %s}", strconv.Quote(schema.String()))))
	response, err := http.DefaultClient.Do(request)
	if err != nil {
		return 0, err
	}

	if this.isOK(response) {
		decodedResponse := &GetSubjectVersionResponse{}
		if this.handleSuccess(response, decodedResponse) != nil {
			return 0, err
		}
		schemaVersionMap[schema] = decodedResponse.Version

		return decodedResponse.Version, err
	} else {
		return 0, this.handleError(response)
	}
}
Ejemplo n.º 2
0
func (this *CachedSchemaRegistryClient) Register(subject string, schema avro.Schema) (int32, error) {
	var schemaIdMap map[avro.Schema]int32
	var exists bool
	if schemaIdMap, exists = this.schemaCache[subject]; !exists {
		schemaIdMap = make(map[avro.Schema]int32)
		this.schemaCache[subject] = schemaIdMap
	}

	var id int32
	if id, exists = schemaIdMap[schema]; exists {
		return id, nil
	}

	request, err := this.newDefaultRequest("POST",
		fmt.Sprintf(REGISTER_NEW_SCHEMA, subject),
		strings.NewReader(fmt.Sprintf("{\"schema\": %s}", strconv.Quote(schema.String()))))
	response, err := http.DefaultClient.Do(request)
	if err != nil {
		return 0, err
	}

	if this.isOK(response) {
		decodedResponse := &RegisterSchemaResponse{}
		if this.handleSuccess(response, decodedResponse) != nil {
			return 0, err
		}

		schemaIdMap[schema] = decodedResponse.Id
		this.idCache[decodedResponse.Id] = schema

		return decodedResponse.Id, err
	} else {
		return 0, this.handleError(response)
	}
}