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cluster_classifications.go
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cluster_classifications.go
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// _ _
// __ _____ __ ___ ___ __ _| |_ ___
// \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
// \ V V / __/ (_| |\ V /| | (_| | || __/
// \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
//
// Copyright © 2016 - 2024 Weaviate B.V. All rights reserved.
//
// CONTACT: hello@weaviate.io
//
package clients
import (
"bytes"
"context"
"encoding/json"
"io"
"net/http"
"net/url"
"github.com/pkg/errors"
"github.com/weaviate/weaviate/usecases/cluster"
)
type ClusterClassifications struct {
client *http.Client
}
func NewClusterClassifications(httpClient *http.Client) *ClusterClassifications {
return &ClusterClassifications{client: httpClient}
}
func (c *ClusterClassifications) OpenTransaction(ctx context.Context, host string,
tx *cluster.Transaction,
) error {
path := "/classifications/transactions/"
method := http.MethodPost
url := url.URL{Scheme: "http", Host: host, Path: path}
pl := txPayload{
Type: tx.Type,
ID: tx.ID,
Payload: tx.Payload,
}
jsonBytes, err := json.Marshal(pl)
if err != nil {
return errors.Wrap(err, "marshal transaction payload")
}
req, err := http.NewRequestWithContext(ctx, method, url.String(),
bytes.NewReader(jsonBytes))
if err != nil {
return errors.Wrap(err, "open http request")
}
req.Header.Set("content-type", "application/json")
res, err := c.client.Do(req)
if err != nil {
return errors.Wrap(err, "send http request")
}
defer res.Body.Close()
if res.StatusCode != http.StatusCreated {
if res.StatusCode == http.StatusConflict {
return cluster.ErrConcurrentTransaction
}
body, _ := io.ReadAll(res.Body)
return errors.Errorf("unexpected status code %d (%s)", res.StatusCode,
body)
}
return nil
}
func (c *ClusterClassifications) AbortTransaction(ctx context.Context, host string,
tx *cluster.Transaction,
) error {
path := "/classifications/transactions/" + tx.ID
method := http.MethodDelete
url := url.URL{Scheme: "http", Host: host, Path: path}
req, err := http.NewRequestWithContext(ctx, method, url.String(), nil)
if err != nil {
return errors.Wrap(err, "open http request")
}
res, err := c.client.Do(req)
if err != nil {
return errors.Wrap(err, "send http request")
}
defer res.Body.Close()
if res.StatusCode != http.StatusNoContent {
return errors.Errorf("unexpected status code %d", res.StatusCode)
}
return nil
}
func (c *ClusterClassifications) CommitTransaction(ctx context.Context, host string,
tx *cluster.Transaction,
) error {
path := "/classifications/transactions/" + tx.ID + "/commit"
method := http.MethodPut
url := url.URL{Scheme: "http", Host: host, Path: path}
req, err := http.NewRequestWithContext(ctx, method, url.String(), nil)
if err != nil {
return errors.Wrap(err, "open http request")
}
res, err := c.client.Do(req)
if err != nil {
return errors.Wrap(err, "send http request")
}
defer res.Body.Close()
if res.StatusCode != http.StatusNoContent {
return errors.Errorf("unexpected status code %d", res.StatusCode)
}
return nil
}