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ruleset_test.go

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  • caching_middleware.go 1.79 KiB
    package middleware
    
    import (
    	"context"
    	"strings"
    
    	"git.perx.ru/perxis/perxis-go/pkg/cache"
    	service "git.perx.ru/perxis/perxis-go/pkg/roles"
    )
    
    func makeKey(ss ...string) string {
    	return strings.Join(ss, "-")
    }
    
    func CachingMiddleware(cache *cache.Cache) Middleware {
    	return func(next service.Roles) service.Roles {
    		return &cachingMiddleware{
    			cache: cache,
    			next:  next,
    		}
    	}
    }
    
    type cachingMiddleware struct {
    	cache *cache.Cache
    	next  service.Roles
    }
    
    func (m cachingMiddleware) Create(ctx context.Context, role *service.Role) (rl *service.Role, err error) {
    	rl, err = m.next.Create(ctx, role)
    	if err == nil {
    		m.cache.Remove(rl.SpaceID)
    	}
    	return rl, err
    }
    
    func (m cachingMiddleware) Get(ctx context.Context, spaceId string, roleId string) (rl *service.Role, err error) {
    	key := makeKey(spaceId, roleId)
    	value, e := m.cache.Get(key)
    	if e == nil {
    		return value.(*service.Role), err
    	}
    	rl, err = m.next.Get(ctx, spaceId, roleId)
    	if err == nil {
    		m.cache.Set(key, rl)
    	}
    	return rl, err
    }
    
    func (m cachingMiddleware) List(ctx context.Context, spaceId string) (roles []*service.Role, err error) {
    	value, e := m.cache.Get(spaceId)
    	if e == nil {
    		return value.([]*service.Role), err
    	}
    	roles, err = m.next.List(ctx, spaceId)
    	if err == nil {
    		m.cache.Set(spaceId, roles)
    	}
    	return roles, err
    }
    
    func (m cachingMiddleware) Update(ctx context.Context, role *service.Role) (err error) {
    	err = m.next.Update(ctx, role)
    	if err == nil {
    		key := makeKey(role.SpaceID, role.ID)
    		m.cache.Remove(key)
    		m.cache.Remove(role.SpaceID)
    	}
    	return err
    }
    
    func (m cachingMiddleware) Delete(ctx context.Context, spaceId string, roleId string) (err error) {
    	err = m.next.Delete(ctx, spaceId, roleId)
    	if err == nil {
    		key := makeKey(spaceId, roleId)
    		m.cache.Remove(key)
    		m.cache.Remove(spaceId)
    	}
    	return err
    }