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// _ _
// __ _____ __ ___ ___ __ _| |_ ___
// \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
// \ V V / __/ (_| |\ V /| | (_| | || __/
// \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
//
// Copyright © 2016 - 2024 Weaviate B.V. All rights reserved.
//
// CONTACT: [email protected]
//
package clients
import (
"bytes"
"context"
"encoding/json"
"fmt"
"io"
"net/http"
"time"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/weaviate/weaviate/modules/text-spellcheck/ent"
)
type spellCheckInput struct {
Text []string `json:"text"`
}
type spellCheckCorrection struct {
Original string `json:"original"`
Correction string `json:"correction"`
}
type spellCheckResponse struct {
spellCheckInput
Changes []spellCheckCorrection `json:"changes"`
}
type spellCheck struct {
origin string
httpClient *http.Client
logger logrus.FieldLogger
}
func New(origin string, timeout time.Duration, logger logrus.FieldLogger) *spellCheck {
return &spellCheck{
origin: origin,
httpClient: &http.Client{
Timeout: timeout,
},
logger: logger,
}
}
func (s *spellCheck) Check(ctx context.Context, text []string) (*ent.SpellCheckResult, error) {
body, err := json.Marshal(spellCheckInput{
Text: text,
})
if err != nil {
return nil, errors.Wrapf(err, "marshal body")
}
req, err := http.NewRequestWithContext(ctx, "POST", s.url("/spellcheck/"),
bytes.NewReader(body))
if err != nil {
return nil, errors.Wrap(err, "create POST request")
}
res, err := s.httpClient.Do(req)
if err != nil {
return nil, errors.Wrap(err, "send POST request")
}
defer res.Body.Close()
bodyBytes, err := io.ReadAll(res.Body)
if err != nil {
return nil, errors.Wrap(err, "read response body")
}
var resBody spellCheckResponse
if err := json.Unmarshal(bodyBytes, &resBody); err != nil {
return nil, errors.Wrap(err, "unmarshal response body")
}
if res.StatusCode > 399 {
return nil, errors.Errorf("fail with status %d", res.StatusCode)
}
return &ent.SpellCheckResult{
Text: resBody.Text,
Changes: s.getCorrections(resBody.Changes),
}, nil
}
func (s *spellCheck) url(path string) string {
return fmt.Sprintf("%s%s", s.origin, path)
}
func (s *spellCheck) getCorrections(changes []spellCheckCorrection) []ent.SpellCheckCorrection {
if len(changes) == 0 {
return nil
}
corrections := make([]ent.SpellCheckCorrection, len(changes))
for i := range changes {
corrections[i] = ent.SpellCheckCorrection{
Original: changes[i].Original,
Correction: changes[i].Correction,
}
}
return corrections
}
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