mirror of
https://gitee.com/dromara/mayfly-go
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241 lines
7.3 KiB
Go
241 lines
7.3 KiB
Go
package application
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import (
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"context"
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"errors"
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"mayfly-go/internal/common/consts"
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"mayfly-go/internal/db/dbm"
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"mayfly-go/internal/db/dbm/dbi"
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"mayfly-go/internal/db/domain/entity"
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"mayfly-go/internal/db/domain/repository"
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tagapp "mayfly-go/internal/tag/application"
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tagentity "mayfly-go/internal/tag/domain/entity"
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"mayfly-go/pkg/base"
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"mayfly-go/pkg/biz"
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"mayfly-go/pkg/errorx"
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"mayfly-go/pkg/model"
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"mayfly-go/pkg/utils/structx"
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"gorm.io/gorm"
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)
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type SaveDbInstanceParam struct {
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DbInstance *entity.DbInstance
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AuthCerts []*tagentity.ResourceAuthCert
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}
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type Instance interface {
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base.App[*entity.DbInstance]
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// GetPageList 分页获取数据库实例
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GetPageList(condition *entity.InstanceQuery, pageParam *model.PageParam, toEntity any, orderBy ...string) (*model.PageResult[any], error)
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Count(condition *entity.InstanceQuery) int64
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TestConn(instanceEntity *entity.DbInstance, authCert *tagentity.ResourceAuthCert) error
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SaveDbInstance(ctx context.Context, instance *SaveDbInstanceParam) error
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// Delete 删除数据库信息
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Delete(ctx context.Context, id uint64) error
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// GetDatabases 获取数据库实例的所有数据库列表
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GetDatabases(entity *entity.DbInstance, authCertName string) ([]string, error)
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// ToDbInfo 根据实例与授权凭证返回对应的DbInfo
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ToDbInfo(instance *entity.DbInstance, authCertName string, database string) (*dbi.DbInfo, error)
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}
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type instanceAppImpl struct {
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base.AppImpl[*entity.DbInstance, repository.Instance]
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resourceAuthCertApp tagapp.ResourceAuthCert `inject:"ResourceAuthCertApp"`
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dbApp Db `inject:"DbApp"`
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backupApp *DbBackupApp `inject:"DbBackupApp"`
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restoreApp *DbRestoreApp `inject:"DbRestoreApp"`
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}
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// 注入DbInstanceRepo
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func (app *instanceAppImpl) InjectDbInstanceRepo(repo repository.Instance) {
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app.Repo = repo
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}
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// GetPageList 分页获取数据库实例
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func (app *instanceAppImpl) GetPageList(condition *entity.InstanceQuery, pageParam *model.PageParam, toEntity any, orderBy ...string) (*model.PageResult[any], error) {
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return app.GetRepo().GetInstanceList(condition, pageParam, toEntity, orderBy...)
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}
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func (app *instanceAppImpl) Count(condition *entity.InstanceQuery) int64 {
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return app.CountByCond(condition)
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}
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func (app *instanceAppImpl) TestConn(instanceEntity *entity.DbInstance, authCert *tagentity.ResourceAuthCert) error {
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instanceEntity.Network = instanceEntity.GetNetwork()
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if authCert.Id != 0 {
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// 密文可能被清除，故需要重新获取
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authCert, _ = app.resourceAuthCertApp.GetAuthCert(authCert.Name)
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} else {
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if authCert.CiphertextType == tagentity.AuthCertCiphertextTypePublic {
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publicAuthCert, err := app.resourceAuthCertApp.GetAuthCert(authCert.Ciphertext)
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if err != nil {
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return err
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}
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authCert = publicAuthCert
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}
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}
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dbConn, err := dbm.Conn(app.toDbInfoByAc(instanceEntity, authCert, ""))
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if err != nil {
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return err
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}
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dbConn.Close()
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return nil
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}
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func (app *instanceAppImpl) SaveDbInstance(ctx context.Context, instance *SaveDbInstanceParam) error {
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instanceEntity := instance.DbInstance
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// 默认tcp连接
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instanceEntity.Network = instanceEntity.GetNetwork()
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resourceType := consts.ResourceTypeDb
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authCerts := instance.AuthCerts
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if len(authCerts) == 0 {
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return errorx.NewBiz("授权凭证信息不能为空")
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}
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// 查找是否存在该库
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oldInstance := &entity.DbInstance{
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Host: instanceEntity.Host,
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Port: instanceEntity.Port,
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SshTunnelMachineId: instanceEntity.SshTunnelMachineId,
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}
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err := app.GetBy(oldInstance)
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if instanceEntity.Id == 0 {
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if err == nil {
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return errorx.NewBiz("该数据库实例已存在")
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}
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if app.CountByCond(&entity.DbInstance{Code: instanceEntity.Code}) > 0 {
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return errorx.NewBiz("该编码已存在")
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}
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return app.Tx(ctx, func(ctx context.Context) error {
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return app.Insert(ctx, instanceEntity)
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}, func(ctx context.Context) error {
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return app.resourceAuthCertApp.RelateAuthCert(ctx, &tagapp.RelateAuthCertParam{
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ResourceCode: instanceEntity.Code,
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ResourceType: tagentity.TagType(resourceType),
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AuthCerts: authCerts,
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})
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})
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}
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// 如果存在该库，则校验修改的库是否为该库
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if err == nil && oldInstance.Id != instanceEntity.Id {
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return errorx.NewBiz("该数据库实例已存在")
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}
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return app.Tx(ctx, func(ctx context.Context) error {
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return app.UpdateById(ctx, instanceEntity)
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}, func(ctx context.Context) error {
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return app.resourceAuthCertApp.RelateAuthCert(ctx, &tagapp.RelateAuthCertParam{
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ResourceCode: oldInstance.Code,
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ResourceType: tagentity.TagType(resourceType),
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AuthCerts: authCerts,
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})
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})
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}
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func (app *instanceAppImpl) Delete(ctx context.Context, instanceId uint64) error {
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instance, err := app.GetById(new(entity.DbInstance), instanceId, "name")
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if err != nil {
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return errorx.NewBiz("获取数据库实例错误，数据库实例ID为: %d", instance.Id)
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}
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restore := &entity.DbRestore{
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DbInstanceId: instanceId,
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}
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err = app.restoreApp.restoreRepo.GetBy(restore)
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switch {
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case err == nil:
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biz.ErrNotNil(err, "不能删除数据库实例【%s】，请先删除关联的数据库恢复任务。", instance.Name)
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case errors.Is(err, gorm.ErrRecordNotFound):
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break
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default:
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biz.ErrIsNil(err, "删除数据库实例失败: %v", err)
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}
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backup := &entity.DbBackup{
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DbInstanceId: instanceId,
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}
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err = app.backupApp.backupRepo.GetBy(backup)
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switch {
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case err == nil:
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biz.ErrNotNil(err, "不能删除数据库实例【%s】，请先删除关联的数据库备份任务。", instance.Name)
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case errors.Is(err, gorm.ErrRecordNotFound):
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break
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default:
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biz.ErrIsNil(err, "删除数据库实例失败: %v", err)
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}
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db := &entity.Db{
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InstanceId: instanceId,
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}
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err = app.dbApp.GetBy(db)
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switch {
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case err == nil:
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biz.ErrNotNil(err, "不能删除数据库实例【%s】，请先删除关联的数据库资源。", instance.Name)
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case errors.Is(err, gorm.ErrRecordNotFound):
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break
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default:
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biz.ErrIsNil(err, "删除数据库实例失败: %v", err)
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}
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return app.Tx(ctx, func(ctx context.Context) error {
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return app.DeleteById(ctx, instanceId)
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}, func(ctx context.Context) error {
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// 删除该实例关联的授权凭证信息
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return app.resourceAuthCertApp.RelateAuthCert(ctx, &tagapp.RelateAuthCertParam{
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ResourceCode: instance.Code,
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ResourceType: tagentity.TagType(consts.ResourceTypeDb),
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})
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})
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}
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func (app *instanceAppImpl) GetDatabases(ed *entity.DbInstance, authCertName string) ([]string, error) {
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ed.Network = ed.GetNetwork()
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dbi, err := app.ToDbInfo(ed, authCertName, "")
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if err != nil {
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return nil, err
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}
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dbConn, err := dbm.Conn(dbi)
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if err != nil {
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return nil, err
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}
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defer dbConn.Close()
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return dbConn.GetMetaData().GetDbNames()
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}
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func (app *instanceAppImpl) ToDbInfo(instance *entity.DbInstance, authCertName string, database string) (*dbi.DbInfo, error) {
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ac, err := app.resourceAuthCertApp.GetAuthCert(authCertName)
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if err != nil {
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return nil, err
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}
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return app.toDbInfoByAc(instance, ac, database), nil
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}
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func (app *instanceAppImpl) toDbInfoByAc(instance *entity.DbInstance, ac *tagentity.ResourceAuthCert, database string) *dbi.DbInfo {
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di := new(dbi.DbInfo)
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di.InstanceId = instance.Id
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di.Database = database
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structx.Copy(di, instance)
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di.Username = ac.Username
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di.Password = ac.Ciphertext
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return di
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}
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