444 lines
11 KiB
Go
444 lines
11 KiB
Go
// =============================================================================
|
||
// MongoDB 数据源连接管理
|
||
// 负责数据源的连接、重连、健康检查和优雅关闭
|
||
// =============================================================================
|
||
|
||
package mongo
|
||
|
||
import (
|
||
"context"
|
||
"fmt"
|
||
"net/url"
|
||
"os"
|
||
"os/signal"
|
||
"strings"
|
||
"sync"
|
||
"syscall"
|
||
"time"
|
||
|
||
"gitea.com/red-future/common/log/consts"
|
||
|
||
"github.com/gogf/gf/v2/frame/g"
|
||
"github.com/gogf/gf/v2/os/glog"
|
||
"github.com/gogf/gf/v2/os/grpool"
|
||
"github.com/gogf/gf/v2/text/gstr"
|
||
"github.com/gogf/gf/v2/util/gconv"
|
||
"go.mongodb.org/mongo-driver/v2/mongo"
|
||
"go.mongodb.org/mongo-driver/v2/mongo/options"
|
||
)
|
||
|
||
// =============================================================================
|
||
// 数据源配置结构
|
||
// =============================================================================
|
||
|
||
type DataSourceConfig struct {
|
||
Name string `json:"name"`
|
||
Address string `json:"address"`
|
||
Database string `json:"database"`
|
||
Username string `json:"username"`
|
||
Password string `json:"password"`
|
||
MaxPoolSize int32 `json:"maxPoolSize"`
|
||
MinPoolSize int32 `json:"minPoolSize"`
|
||
ConnectTimeout time.Duration `json:"connectTimeout"`
|
||
}
|
||
|
||
// =============================================================================
|
||
// 单个数据源接口
|
||
// =============================================================================
|
||
|
||
type DataSource interface {
|
||
Name() string
|
||
Database() *mongo.Database
|
||
Client() *mongo.Client
|
||
IsConnected() bool
|
||
Connect(ctx context.Context) error
|
||
Reconnect(ctx context.Context) error
|
||
Close(ctx context.Context) error
|
||
}
|
||
|
||
// =============================================================================
|
||
// 数据源实现
|
||
// =============================================================================
|
||
|
||
type BaseDataSource struct {
|
||
config *DataSourceConfig
|
||
client *mongo.Client
|
||
database *mongo.Database
|
||
isConnected bool
|
||
mu sync.RWMutex
|
||
lastError error
|
||
lastErrorTime time.Time
|
||
}
|
||
|
||
func NewBaseDataSource(config *DataSourceConfig) *BaseDataSource {
|
||
return &BaseDataSource{
|
||
config: config,
|
||
isConnected: false,
|
||
}
|
||
}
|
||
|
||
func (d *BaseDataSource) Name() string {
|
||
return d.config.Name
|
||
}
|
||
|
||
func (d *BaseDataSource) Database() *mongo.Database {
|
||
d.mu.RLock()
|
||
defer d.mu.RUnlock()
|
||
return d.database
|
||
}
|
||
|
||
func (d *BaseDataSource) Client() *mongo.Client {
|
||
d.mu.RLock()
|
||
defer d.mu.RUnlock()
|
||
return d.client
|
||
}
|
||
|
||
func (d *BaseDataSource) IsConnected() bool {
|
||
d.mu.RLock()
|
||
defer d.mu.RUnlock()
|
||
return d.isConnected && d.client != nil
|
||
}
|
||
|
||
func (d *BaseDataSource) Connect(ctx context.Context) error {
|
||
d.mu.Lock()
|
||
defer d.mu.Unlock()
|
||
|
||
if d.client != nil {
|
||
d.client.Disconnect(ctx)
|
||
}
|
||
|
||
// 解析数据库名
|
||
dbName := d.config.Database
|
||
if strings.Contains(dbName, "?") {
|
||
dbName = gstr.SubStr(dbName, 0, strings.Index(dbName, "?"))
|
||
}
|
||
|
||
// 构建连接URI
|
||
connectionURI := fmt.Sprintf("mongodb://%s", d.config.Address)
|
||
|
||
// 如果配置了用户名和密码，添加到URI中
|
||
if d.config.Username != "" {
|
||
// URL编码用户名和密码，正确处理特殊字符
|
||
encodedUsername := url.QueryEscape(d.config.Username)
|
||
encodedPassword := url.QueryEscape(d.config.Password)
|
||
|
||
// 构建认证信息
|
||
authInfo := fmt.Sprintf("%s:%s@", encodedUsername, encodedPassword)
|
||
|
||
// 将认证信息插入到URI中
|
||
connectionURI = fmt.Sprintf("mongodb://%s%s", authInfo, d.config.Address)
|
||
}
|
||
|
||
// 构建连接选项
|
||
opt := options.Client().
|
||
ApplyURI(connectionURI).
|
||
SetMaxPoolSize(uint64(d.config.MaxPoolSize)).
|
||
SetMinPoolSize(uint64(d.config.MinPoolSize)).
|
||
SetConnectTimeout(d.config.ConnectTimeout).
|
||
SetMaxConnecting(10).
|
||
SetServerSelectionTimeout(10 * time.Second).
|
||
SetHeartbeatInterval(10 * time.Second).
|
||
SetMaxConnIdleTime(60 * time.Second).
|
||
SetRetryWrites(true).
|
||
SetRetryReads(true).SetMonitor(commandMonitor())
|
||
|
||
var err error
|
||
d.client, err = mongo.Connect(opt)
|
||
if err != nil {
|
||
d.isConnected = false
|
||
d.lastError = err
|
||
d.lastErrorTime = time.Now()
|
||
return fmt.Errorf("datasource [%s] connection failed: %w", d.config.Name, err)
|
||
}
|
||
|
||
// 测试连接
|
||
pingCtx, cancel := context.WithTimeout(ctx, 5*time.Second)
|
||
defer cancel()
|
||
if err = d.client.Ping(pingCtx, nil); err != nil {
|
||
d.isConnected = false
|
||
d.lastError = err
|
||
d.lastErrorTime = time.Now()
|
||
return fmt.Errorf("datasource [%s] ping failed: %w", d.config.Name, err)
|
||
}
|
||
|
||
d.database = d.client.Database(dbName)
|
||
d.isConnected = true
|
||
d.lastError = nil
|
||
glog.Infof(ctx, "✅ datasource [%s] connected successfully", d.config.Name)
|
||
return nil
|
||
}
|
||
|
||
func (d *BaseDataSource) Reconnect(ctx context.Context) error {
|
||
glog.Infof(ctx, "🔄 reconnecting datasource [%s]", d.config.Name)
|
||
return d.Connect(ctx)
|
||
}
|
||
|
||
func (d *BaseDataSource) Close(ctx context.Context) error {
|
||
d.mu.Lock()
|
||
defer d.mu.Unlock()
|
||
|
||
if d.client != nil {
|
||
disconnectCtx, cancel := context.WithTimeout(ctx, 5*time.Second)
|
||
defer cancel()
|
||
if err := d.client.Disconnect(disconnectCtx); err != nil {
|
||
return fmt.Errorf("datasource [%s] close failed: %w", d.config.Name, err)
|
||
}
|
||
}
|
||
|
||
d.isConnected = false
|
||
glog.Infof(ctx, "datasource [%s] closed", d.config.Name)
|
||
return nil
|
||
}
|
||
|
||
// =============================================================================
|
||
// 多数据源管理器
|
||
// =============================================================================
|
||
|
||
type DataSourceManager struct {
|
||
sources map[string]DataSource
|
||
mu sync.RWMutex
|
||
ctx context.Context
|
||
cancel context.CancelFunc
|
||
started bool
|
||
maxRetries int
|
||
}
|
||
|
||
var (
|
||
globalManager *DataSourceManager
|
||
managerOnce sync.Once
|
||
)
|
||
|
||
// GetManager 获取全局管理器
|
||
func GetManager() *DataSourceManager {
|
||
managerOnce.Do(func() {
|
||
ctx, cancel := context.WithCancel(context.Background())
|
||
globalManager = &DataSourceManager{
|
||
sources: make(map[string]DataSource),
|
||
ctx: ctx,
|
||
cancel: cancel,
|
||
started: false,
|
||
maxRetries: 3,
|
||
}
|
||
})
|
||
return globalManager
|
||
}
|
||
|
||
// RegisterDataSource 注册数据源
|
||
func (m *DataSourceManager) RegisterDataSource(config *DataSourceConfig) error {
|
||
m.mu.Lock()
|
||
defer m.mu.Unlock()
|
||
|
||
if _, exists := m.sources[config.Name]; exists {
|
||
return fmt.Errorf("datasource [%s] already exists", config.Name)
|
||
}
|
||
|
||
source := NewBaseDataSource(config)
|
||
m.sources[config.Name] = source
|
||
return nil
|
||
}
|
||
|
||
// GetDataSource 获取数据源
|
||
func (m *DataSourceManager) GetDataSource(name string) (DataSource, error) {
|
||
m.mu.RLock()
|
||
defer m.mu.RUnlock()
|
||
|
||
source, exists := m.sources[name]
|
||
if !exists {
|
||
return nil, fmt.Errorf("datasource [%s] not found", name)
|
||
}
|
||
return source, nil
|
||
}
|
||
|
||
// GetAllDataSourceNames 获取所有数据源名称
|
||
func (m *DataSourceManager) GetAllDataSourceNames() []string {
|
||
m.mu.RLock()
|
||
defer m.mu.RUnlock()
|
||
|
||
names := make([]string, 0, len(m.sources))
|
||
for name := range m.sources {
|
||
names = append(names, name)
|
||
}
|
||
return names
|
||
}
|
||
|
||
// init 初始化多数据源
|
||
func init() {
|
||
logPool = grpool.New(1)
|
||
serverName = g.Cfg().MustGet(context.TODO(), "server.name").String()
|
||
LogRedisKey = fmt.Sprintf(consts.StreamKey, serverName)
|
||
|
||
ctx := context.Background()
|
||
|
||
// 从配置初始化多数据源
|
||
if err := manager.InitializeFromConfig(ctx); err != nil {
|
||
glog.Errorf(ctx, "❌ Failed to initialize MongoDB datasources: %v", err)
|
||
} else {
|
||
glog.Infof(ctx, "✅ MongoDB datasources initialized: %v", manager.GetAllDataSourceNames())
|
||
}
|
||
|
||
// 启动健康检查
|
||
manager.StartHealthCheck()
|
||
|
||
// 设置优雅关闭
|
||
setupGracefulShutdown()
|
||
}
|
||
|
||
// InitializeFromConfig 从配置初始化数据源
|
||
// 动态读取 config.yml 中 mongo 下的所有配置项
|
||
func (m *DataSourceManager) InitializeFromConfig(ctx context.Context) error {
|
||
var firstErr error
|
||
|
||
// 获取 mongo 配置下的所有子键
|
||
mongoConfig := g.Cfg().MustGet(ctx, "mongo")
|
||
if mongoConfig.IsNil() {
|
||
glog.Warningf(ctx, "no mongo configuration found in config.yml")
|
||
return nil
|
||
}
|
||
|
||
// 将配置转换为 map
|
||
configMap := mongoConfig.Map()
|
||
if configMap == nil {
|
||
glog.Warningf(ctx, "mongo configuration is not a map")
|
||
return nil
|
||
}
|
||
|
||
// 遍历所有 mongo 子配置
|
||
for name, subConfig := range configMap {
|
||
// 跳过非对象类型的配置
|
||
subMap, ok := subConfig.(map[string]interface{})
|
||
if !ok {
|
||
continue
|
||
}
|
||
|
||
// 检查是否有 address 配置
|
||
address, hasAddress := subMap["address"]
|
||
if !hasAddress || gconv.String(address) == "" {
|
||
continue
|
||
}
|
||
|
||
// 构建数据源配置
|
||
config := &DataSourceConfig{
|
||
Name: name,
|
||
Address: gconv.String(address),
|
||
Database: gconv.String(subMap["database"]),
|
||
Username: gconv.String(subMap["username"]),
|
||
Password: gconv.String(subMap["password"]),
|
||
MaxPoolSize: int32(gconv.Int(subMap["maxPoolSize"])),
|
||
MinPoolSize: int32(gconv.Int(subMap["minPoolSize"])),
|
||
ConnectTimeout: gconv.Duration(subMap["connectTimeout"]),
|
||
}
|
||
|
||
// 设置默认值
|
||
if config.MaxPoolSize == 0 {
|
||
config.MaxPoolSize = 100
|
||
}
|
||
if config.MinPoolSize == 0 {
|
||
config.MinPoolSize = 10
|
||
}
|
||
if config.ConnectTimeout == 0 {
|
||
config.ConnectTimeout = 10 * time.Second
|
||
}
|
||
|
||
// 注册数据源
|
||
if err := m.RegisterDataSource(config); err != nil {
|
||
glog.Errorf(ctx, "failed to register datasource [%s]: %v", name, err)
|
||
if firstErr == nil {
|
||
firstErr = err
|
||
}
|
||
continue
|
||
}
|
||
|
||
// 连接数据源
|
||
source, _ := m.GetDataSource(name)
|
||
if err := source.Connect(ctx); err != nil {
|
||
glog.Errorf(ctx, "failed to initialize datasource [%s]: %v", name, err)
|
||
if firstErr == nil {
|
||
firstErr = err
|
||
}
|
||
}
|
||
}
|
||
|
||
return firstErr
|
||
}
|
||
|
||
// StartHealthCheck 启动健康检查
|
||
func (m *DataSourceManager) StartHealthCheck() {
|
||
if m.started {
|
||
return
|
||
}
|
||
m.started = true
|
||
go m.healthCheckLoop()
|
||
}
|
||
|
||
// healthCheckLoop 健康检查循环
|
||
func (m *DataSourceManager) healthCheckLoop() {
|
||
ticker := time.NewTicker(30 * time.Second)
|
||
defer ticker.Stop()
|
||
|
||
for {
|
||
select {
|
||
case <-m.ctx.Done():
|
||
return
|
||
case <-ticker.C:
|
||
m.checkAndReconnect()
|
||
}
|
||
}
|
||
}
|
||
|
||
// checkAndReconnect 检查并重新连接
|
||
func (m *DataSourceManager) checkAndReconnect() {
|
||
m.mu.RLock()
|
||
defer m.mu.RUnlock()
|
||
|
||
for name, source := range m.sources {
|
||
if !source.IsConnected() {
|
||
glog.Warningf(context.Background(), "datasource [%s] disconnected, attempting reconnect", name)
|
||
|
||
reconnectCtx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
|
||
defer cancel()
|
||
|
||
if err := source.Reconnect(reconnectCtx); err != nil {
|
||
glog.Errorf(reconnectCtx, "datasource [%s] reconnect failed: %v", name, err)
|
||
} else {
|
||
glog.Infof(reconnectCtx, "✅ datasource [%s] reconnected successfully", name)
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
// CloseAll 关闭所有数据源
|
||
func (m *DataSourceManager) CloseAll(ctx context.Context) error {
|
||
m.cancel()
|
||
|
||
m.mu.RLock()
|
||
defer m.mu.RUnlock()
|
||
|
||
var lastErr error
|
||
for name, source := range m.sources {
|
||
if err := source.Close(ctx); err != nil {
|
||
glog.Errorf(ctx, "failed to close datasource [%s]: %v", name, err)
|
||
lastErr = err
|
||
}
|
||
}
|
||
return lastErr
|
||
}
|
||
|
||
// setupGracefulShutdown 设置优雅关闭
|
||
func setupGracefulShutdown() {
|
||
go func() {
|
||
sigCh := make(chan os.Signal, 1)
|
||
signal.Notify(sigCh, syscall.SIGINT, syscall.SIGTERM)
|
||
<-sigCh
|
||
|
||
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
|
||
defer cancel()
|
||
|
||
glog.Info(ctx, "🔄 Shutting down MongoDB connections...")
|
||
if err := manager.CloseAll(ctx); err != nil {
|
||
glog.Errorf(ctx, "❌ Failed to close MongoDB connections: %v", err)
|
||
} else {
|
||
glog.Info(ctx, "✅ MongoDB connections closed successfully")
|
||
}
|
||
}()
|
||
}
|