/
mapping_rule.go
206 lines (174 loc) · 5.21 KB
/
mapping_rule.go
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package db
import (
"database/sql"
"fmt"
"log"
entity "github.com/acidlemon/guardmech/app/logic/membership"
"github.com/acidlemon/seacle"
"github.com/google/uuid"
)
const AssociatedTypeGroup = 1
const AssociatedTypeRole = 2
type MappingRuleRow struct {
SeqID int64 `db:"seq_id,primary,auto_increment"`
MappingRuleID string `db:"mapping_rule_id"`
RuleType int `db:"rule_type"`
Detail string `db:"detail"`
Name string `db:"name"`
Description string `db:"description"`
Priority int `db:"priority"`
AssociationType int `db:"association_type"`
AssociationID string `db:"association_id"`
}
func mappingRuleRowFromEntity(m *entity.MappingRule) *MappingRuleRow {
row := &MappingRuleRow{
MappingRuleID: m.MappingRuleID.String(),
RuleType: int(m.RuleType),
Detail: m.Detail,
Name: m.Name,
Description: m.Description,
Priority: m.Priority,
}
g := m.AssociatedGroup()
if g != nil {
row.AssociationType = AssociatedTypeGroup
row.AssociationID = g.GroupID.String()
}
r := m.AssociatedRole()
if r != nil {
row.AssociationType = AssociatedTypeRole
row.AssociationID = r.RoleID.String()
}
return row
}
func (s *Service) FindMappingRules(ctx Context, conn seacle.Selectable, mappingRuleIDs []string) ([]*entity.MappingRule, error) {
if len(mappingRuleIDs) == 0 {
return []*entity.MappingRule{}, nil
}
mrRows := make([]*MappingRuleRow, 0, 8)
err := seacle.Select(ctx, conn, &mrRows, `WHERE mapping_rule_id IN (?)`, mappingRuleIDs)
if err != nil {
log.Println(err)
return nil, err
}
if len(mrRows) == 0 {
return []*entity.MappingRule{}, nil
}
roleIDs := []string{}
groupIDs := []string{}
for _, v := range mrRows {
if v.AssociationType == AssociatedTypeGroup {
groupIDs = append(groupIDs, v.AssociationID)
} else if v.AssociationType == AssociatedTypeRole {
roleIDs = append(roleIDs, v.AssociationID)
}
}
// Associated Group
groups, err := s.FindGroups(ctx, conn, groupIDs)
if err != nil {
return nil, err
}
// Associated Role
roles, err := s.FindRoles(ctx, conn, roleIDs)
if err != nil {
return nil, err
}
result := make([]*entity.MappingRule, 0, len(mrRows))
f := entity.NewFactory(s.q)
for _, v := range mrRows {
var group *entity.Group
var role *entity.Role
if v.AssociationType == AssociatedTypeGroup {
for _, w := range groups {
if w.GroupID.String() == v.AssociationID {
group = w
break
}
}
} else if v.AssociationType == AssociatedTypeRole {
for _, w := range roles {
if w.RoleID.String() == v.AssociationID {
role = w
break
}
}
}
result = append(result, f.NewMappingRule(
uuid.MustParse(v.MappingRuleID), entity.MappingType(v.RuleType), v.Detail,
v.Name, v.Description, v.Priority, group, role,
))
}
return result, nil
}
func (s *Service) EnumerateMappingRuleIDs(ctx Context, conn seacle.Selectable) ([]string, error) {
mrs := make([]*MappingRuleRow, 0, 8)
err := seacle.Select(ctx, conn, &mrs, "")
if err != nil {
log.Println(err)
return nil, err
}
result := make([]string, 0, len(mrs))
for _, v := range mrs {
result = append(result, v.MappingRuleID)
}
return result, nil
}
func (s *Service) SaveMappingRule(ctx Context, conn seacle.Executable, rule *entity.MappingRule) error {
row := &MappingRuleRow{}
err := seacle.SelectRow(ctx, conn, row, "WHERE mapping_rule_id = ?", rule.MappingRuleID.String())
if err != nil && err != sql.ErrNoRows {
return err
}
if err == sql.ErrNoRows {
return s.createMappingRuleRow(ctx, conn, rule)
} else {
return s.updateMappingRuleRow(ctx, conn, rule, row)
}
}
func (s *Service) DeleteMappingRule(ctx Context, conn seacle.Executable, rule *entity.MappingRule) error {
row := &MappingRuleRow{}
err := seacle.SelectRow(ctx, conn, row, "WHERE mapping_rule_id = ?", rule.MappingRuleID.String())
if err != nil && err != sql.ErrNoRows {
return err
}
if err == sql.ErrNoRows {
return nil // do nothing
}
return s.deleteMappingRuleRow(ctx, conn, rule, row)
}
func (s *Service) createMappingRuleRow(ctx Context, conn seacle.Executable, rule *entity.MappingRule) error {
row := mappingRuleRowFromEntity(rule)
_, err := seacle.Insert(ctx, conn, row)
if err != nil {
return err
}
return nil
}
func (s *Service) updateMappingRuleRow(ctx Context, conn seacle.Executable, rule *entity.MappingRule, row *MappingRuleRow) error {
// lock row
err := seacle.SelectRow(ctx, conn, row, `WHERE seq_id = ? FOR UPDATE`, row.SeqID)
if err != nil {
return fmt.Errorf("failed to lock mapping_rule row: err=%s", err)
}
// update row
row.Name = rule.Name
row.Description = rule.Description
err = seacle.Update(ctx, conn, row)
if err != nil {
return fmt.Errorf("failed to update mapping_rule row: err=%s", err)
}
return nil
}
func (s *Service) deleteMappingRuleRow(ctx Context, conn seacle.Executable, rule *entity.MappingRule, row *MappingRuleRow) error {
// lock row
err := seacle.SelectRow(ctx, conn, row, `WHERE seq_id = ? FOR UPDATE`, row.SeqID)
if err != nil {
return fmt.Errorf("failed to lock mapping_rule row: err=%s", err)
}
// delete row
err = seacle.Delete(ctx, conn, row)
if err != nil {
return fmt.Errorf("failed to delete mapping_rule row: err=%s", err)
}
return nil
}