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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"
"net/url"
"github.com/weaviate/weaviate/usecases/backup"
)
const (
pathCanCommit = "/backups/can-commit"
pathCommit = "/backups/commit"
pathStatus = "/backups/status"
pathAbort = "/backups/abort"
)
type ClusterBackups struct {
client *http.Client
}
func NewClusterBackups(client *http.Client) *ClusterBackups {
return &ClusterBackups{client: client}
}
func (c *ClusterBackups) CanCommit(ctx context.Context,
host string, req *backup.Request,
) (*backup.CanCommitResponse, error) {
url := url.URL{Scheme: "http", Host: host, Path: pathCanCommit}
b, err := json.Marshal(req)
if err != nil {
return nil, fmt.Errorf("marshal can-commit request: %w", err)
}
httpReq, err := http.NewRequest(http.MethodPost, url.String(), bytes.NewReader(b))
if err != nil {
return nil, fmt.Errorf("new can-commit request: %w", err)
}
respBody, statusCode, err := c.do(httpReq)
if err != nil {
return nil, fmt.Errorf("can-commit request: %w", err)
}
if statusCode != http.StatusOK {
return nil, fmt.Errorf("unexpected status code %d (%s)",
statusCode, respBody)
}
var resp backup.CanCommitResponse
err = json.Unmarshal(respBody, &resp)
if err != nil {
return nil, fmt.Errorf("unmarshal can-commit response: %w", err)
}
return &resp, nil
}
func (c *ClusterBackups) Commit(ctx context.Context,
host string, req *backup.StatusRequest,
) error {
url := url.URL{Scheme: "http", Host: host, Path: pathCommit}
b, err := json.Marshal(req)
if err != nil {
return fmt.Errorf("marshal commit request: %w", err)
}
httpReq, err := http.NewRequest(http.MethodPost, url.String(), bytes.NewReader(b))
if err != nil {
return fmt.Errorf("new commit request: %w", err)
}
respBody, statusCode, err := c.do(httpReq)
if err != nil {
return fmt.Errorf("commit request: %w", err)
}
if statusCode != http.StatusCreated {
return fmt.Errorf("unexpected status code %d (%s)",
statusCode, respBody)
}
return nil
}
func (c *ClusterBackups) Status(ctx context.Context,
host string, req *backup.StatusRequest,
) (*backup.StatusResponse, error) {
url := url.URL{Scheme: "http", Host: host, Path: pathStatus}
b, err := json.Marshal(req)
if err != nil {
return nil, fmt.Errorf("marshal status request: %w", err)
}
httpReq, err := http.NewRequest(http.MethodPost, url.String(), bytes.NewReader(b))
if err != nil {
return nil, fmt.Errorf("new status request: %w", err)
}
respBody, statusCode, err := c.do(httpReq)
if err != nil {
return nil, fmt.Errorf("status request: %w", err)
}
if statusCode != http.StatusOK {
return nil, fmt.Errorf("unexpected status code %d (%s)",
statusCode, respBody)
}
var resp backup.StatusResponse
err = json.Unmarshal(respBody, &resp)
if err != nil {
return nil, fmt.Errorf("unmarshal status response: %w", err)
}
return &resp, nil
}
func (c *ClusterBackups) Abort(_ context.Context,
host string, req *backup.AbortRequest,
) error {
url := url.URL{Scheme: "http", Host: host, Path: pathAbort}
b, err := json.Marshal(req)
if err != nil {
return fmt.Errorf("marshal abort request: %w", err)
}
httpReq, err := http.NewRequest(http.MethodPost, url.String(), bytes.NewReader(b))
if err != nil {
return fmt.Errorf("new abort request: %w", err)
}
respBody, statusCode, err := c.do(httpReq)
if err != nil {
return fmt.Errorf("abort request: %w", err)
}
if statusCode != http.StatusNoContent {
return fmt.Errorf("unexpected status code %d (%s)",
statusCode, respBody)
}
return nil
}
func (c *ClusterBackups) do(req *http.Request) (body []byte, statusCode int, err error) {
httpResp, err := c.client.Do(req)
if err != nil {
return nil, 0, fmt.Errorf("make request: %w", err)
}
body, err = io.ReadAll(httpResp.Body)
if err != nil {
return nil, httpResp.StatusCode, fmt.Errorf("read response: %w", err)
}
defer httpResp.Body.Close()
return body, httpResp.StatusCode, nil
}
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