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// Copyright 2022 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package api
import (
"context"
"crypto/tls"
"fmt"
"time"
"github.com/pingcap/tiup/pkg/utils"
)
// TiDBClient is client for access TiKVCDC Open API
type TiDBClient struct {
urls []string
client *utils.HTTPClient
ctx context.Context
}
// NewTiDBClient return a `TiDBClient`
func NewTiDBClient(ctx context.Context, addresses []string, timeout time.Duration, tlsConfig *tls.Config) *TiDBClient {
httpPrefix := "http"
if tlsConfig != nil {
httpPrefix = "https"
}
urls := make([]string, 0, len(addresses))
for _, addr := range addresses {
urls = append(urls, fmt.Sprintf("%s://%s", httpPrefix, addr))
}
return &TiDBClient{
urls: urls,
client: utils.NewHTTPClient(timeout, tlsConfig),
ctx: ctx,
}
}
func (c *TiDBClient) getEndpoints(api string) (endpoints []string) {
for _, url := range c.urls {
endpoints = append(endpoints, fmt.Sprintf("%s%s", url, api))
}
return endpoints
}
// StartUpgrade sends the start upgrade message to the TiDB server
func (c *TiDBClient) StartUpgrade() error {
api := "/upgrade/start"
endpoints := c.getEndpoints(api)
_, err := tryURLs(endpoints, func(endpoint string) ([]byte, error) {
return c.client.Post(c.ctx, endpoint, nil)
})
return err
}
// FinishUpgrade sends the finish upgrade message to the TiDB server
func (c *TiDBClient) FinishUpgrade() error {
api := "/upgrade/finish"
endpoints := c.getEndpoints(api)
_, err := tryURLs(endpoints, func(endpoint string) ([]byte, error) {
return c.client.Post(c.ctx, endpoint, nil)
})
return err
}
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