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oas_cfg_gen.go
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oas_cfg_gen.go
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// Code generated by ogen, DO NOT EDIT.
package api
import (
"fmt"
"math/big"
"net/http"
"regexp"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/metric"
"go.opentelemetry.io/otel/metric/instrument/syncint64"
"go.opentelemetry.io/otel/trace"
"github.com/ogen-go/ogen/middleware"
"github.com/ogen-go/ogen/ogenerrors"
"github.com/ogen-go/ogen/otelogen"
)
var regexMap = map[string]*regexp.Regexp{
"^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$": regexp.MustCompile("^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$"),
"^\\d-\\d$": regexp.MustCompile("^\\d-\\d$"),
"foo.*": regexp.MustCompile("foo.*"),
"string_.*": regexp.MustCompile("string_.*"),
}
var ratMap = map[string]*big.Rat{
"10": func() *big.Rat {
r, ok := new(big.Rat).SetString("10")
if !ok {
panic(fmt.Sprintf("rat %q: can't parse", "10"))
}
return r
}(),
"5": func() *big.Rat {
r, ok := new(big.Rat).SetString("5")
if !ok {
panic(fmt.Sprintf("rat %q: can't parse", "5"))
}
return r
}(),
}
var (
// Allocate option closure once.
serverSpanKind = trace.WithSpanKind(trace.SpanKindServer)
)
// ErrorHandler is error handler.
type ErrorHandler = ogenerrors.ErrorHandler
type config struct {
TracerProvider trace.TracerProvider
Tracer trace.Tracer
MeterProvider metric.MeterProvider
Meter metric.Meter
NotFound http.HandlerFunc
MethodNotAllowed func(w http.ResponseWriter, r *http.Request, allowed string)
ErrorHandler ErrorHandler
Prefix string
Middleware Middleware
MaxMultipartMemory int64
}
func newConfig(opts ...Option) config {
cfg := config{
TracerProvider: otel.GetTracerProvider(),
MeterProvider: metric.NewNoopMeterProvider(),
NotFound: http.NotFound,
MethodNotAllowed: func(w http.ResponseWriter, r *http.Request, allowed string) {
w.Header().Set("Allow", allowed)
w.WriteHeader(http.StatusMethodNotAllowed)
},
ErrorHandler: ogenerrors.DefaultErrorHandler,
Middleware: nil,
MaxMultipartMemory: 32 << 20, // 32 MB
}
for _, opt := range opts {
opt.apply(&cfg)
}
cfg.Tracer = cfg.TracerProvider.Tracer(otelogen.Name,
trace.WithInstrumentationVersion(otelogen.SemVersion()),
)
cfg.Meter = cfg.MeterProvider.Meter(otelogen.Name)
return cfg
}
type baseServer struct {
cfg config
requests syncint64.Counter
errors syncint64.Counter
duration syncint64.Histogram
}
func (s baseServer) notFound(w http.ResponseWriter, r *http.Request) {
s.cfg.NotFound(w, r)
}
func (s baseServer) notAllowed(w http.ResponseWriter, r *http.Request, allowed string) {
s.cfg.MethodNotAllowed(w, r, allowed)
}
func (cfg config) baseServer() (s baseServer, err error) {
s = baseServer{cfg: cfg}
if s.requests, err = s.cfg.Meter.SyncInt64().Counter(otelogen.ServerRequestCount); err != nil {
return s, err
}
if s.errors, err = s.cfg.Meter.SyncInt64().Counter(otelogen.ServerErrorsCount); err != nil {
return s, err
}
if s.duration, err = s.cfg.Meter.SyncInt64().Histogram(otelogen.ServerDuration); err != nil {
return s, err
}
return s, nil
}
// Option is config option.
type Option interface {
apply(*config)
}
type optionFunc func(*config)
func (o optionFunc) apply(c *config) {
o(c)
}
// WithTracerProvider specifies a tracer provider to use for creating a tracer.
//
// If none is specified, the global provider is used.
func WithTracerProvider(provider trace.TracerProvider) Option {
return optionFunc(func(cfg *config) {
if provider != nil {
cfg.TracerProvider = provider
}
})
}
// WithMeterProvider specifies a meter provider to use for creating a meter.
//
// If none is specified, the metric.NewNoopMeterProvider is used.
func WithMeterProvider(provider metric.MeterProvider) Option {
return optionFunc(func(cfg *config) {
if provider != nil {
cfg.MeterProvider = provider
}
})
}
// WithNotFound specifies Not Found handler to use.
func WithNotFound(notFound http.HandlerFunc) Option {
return optionFunc(func(cfg *config) {
if notFound != nil {
cfg.NotFound = notFound
}
})
}
// WithMethodNotAllowed specifies Method Not Allowed handler to use.
func WithMethodNotAllowed(methodNotAllowed func(w http.ResponseWriter, r *http.Request, allowed string)) Option {
return optionFunc(func(cfg *config) {
if methodNotAllowed != nil {
cfg.MethodNotAllowed = methodNotAllowed
}
})
}
// WithErrorHandler specifies error handler to use.
func WithErrorHandler(h ErrorHandler) Option {
return optionFunc(func(cfg *config) {
if h != nil {
cfg.ErrorHandler = h
}
})
}
// WithPathPrefix specifies server path prefix.
func WithPathPrefix(prefix string) Option {
return optionFunc(func(cfg *config) {
cfg.Prefix = prefix
})
}
// WithMiddleware specifies middlewares to use.
func WithMiddleware(m ...Middleware) Option {
return optionFunc(func(cfg *config) {
switch len(m) {
case 0:
cfg.Middleware = nil
case 1:
cfg.Middleware = m[0]
default:
cfg.Middleware = middleware.ChainMiddlewares(m...)
}
})
}
// WithMaxMultipartMemory specifies limit of memory for storing file parts.
// File parts which can't be stored in memory will be stored on disk in temporary files.
func WithMaxMultipartMemory(max int64) Option {
return optionFunc(func(cfg *config) {
if max > 0 {
cfg.MaxMultipartMemory = max
}
})
}