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specasyncapiprocessor.go
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specasyncapiprocessor.go
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package apic
import (
"net/url"
"strconv"
"strings"
)
type asyncAPIProcessor struct {
asyncapiDef map[string]interface{}
}
func newAsyncAPIProcessor(asyncapiDef map[string]interface{}) *asyncAPIProcessor {
return &asyncAPIProcessor{asyncapiDef: asyncapiDef}
}
func (p *asyncAPIProcessor) getResourceType() string {
return AsyncAPI
}
// GetVersion -
func (p *asyncAPIProcessor) GetVersion() string {
info := p.asyncapiDef["info"]
if info != nil {
if infoDetail, ok := info.(map[string]interface{}); ok {
version := infoDetail["version"]
if version != nil {
return version.(string)
}
}
}
return ""
}
// GetEndPoints -
func (p *asyncAPIProcessor) GetEndpoints() ([]EndpointDefinition, error) {
endpoints := make([]EndpointDefinition, 0)
var err error
servers := p.asyncapiDef["servers"]
if servers != nil {
if serverList, ok := servers.(map[string]interface{}); ok {
endpoints, err = p.parseServerList(serverList)
if err != nil {
return nil, err
}
}
}
return endpoints, nil
}
func (p *asyncAPIProcessor) parseServerList(serverList map[string]interface{}) ([]EndpointDefinition, error) {
endpoints := make([]EndpointDefinition, 0)
for _, value := range serverList {
serverObjInterface, ok := value.(map[string]interface{})
if ok {
endpoint, err := p.parseServerObject(serverObjInterface)
if err != nil {
return nil, err
}
endpoints = append(endpoints, endpoint)
}
}
return endpoints, nil
}
func (p *asyncAPIProcessor) parseServerObject(serverObjInterface map[string]interface{}) (EndpointDefinition, error) {
var err error
protocol := ""
serverURL := ""
var serverVariables map[string]string
serverDetails := map[string]interface{}{}
for key, valueInterface := range serverObjInterface {
value, ok := valueInterface.(string)
if ok {
if key == "protocol" {
protocol = value
}
if key == "url" {
serverURL = value
}
}
if key == "variables" {
variablesInterface, ok := valueInterface.(map[string]interface{})
if ok {
serverVariables, _ = p.parseVariables(variablesInterface)
}
}
if key == "bindings" {
serverDetails = valueInterface.(map[string]interface{})
}
}
endpoint := EndpointDefinition{}
endpoint.Protocol = protocol
// variable substitution
for varName, varValue := range serverVariables {
serverURL = strings.ReplaceAll(serverURL, "{"+varName+"}", varValue)
}
parseURL, err := url.Parse(protocol + "://" + serverURL)
endpoint.Host = parseURL.Hostname()
port, _ := strconv.Atoi(parseURL.Port())
endpoint.Port = int32(port)
endpoint.BasePath = parseURL.Path
endpoint.Details = serverDetails
return endpoint, err
}
func (p *asyncAPIProcessor) parseVariables(variablesObjInterface map[string]interface{}) (map[string]string, error) {
serverVars := make(map[string]string)
for varName, varObject := range variablesObjInterface {
varObjectInterface, ok := varObject.(map[string]interface{})
if ok {
varValue := p.parseVariableObject(varObjectInterface)
serverVars[varName] = varValue
}
}
return serverVars, nil
}
func (p *asyncAPIProcessor) parseVariableObject(serverObjInterface map[string]interface{}) string {
varDefaultValue := ""
for key, valueInterface := range serverObjInterface {
if key == "default" {
value, ok := valueInterface.(string)
if ok {
varDefaultValue = value
}
}
}
return varDefaultValue
}