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provider.go
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/
provider.go
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package templates
import "github.com/micro/go-micro/errors"
var (
registeredDAOs []DAO
provider *TemplateProvider
)
func RegisterProvider(provider DAO) {
registeredDAOs = append(registeredDAOs, provider)
}
func GetProvider() DAO {
if provider == nil {
provider = new(TemplateProvider)
}
return provider
}
type TemplateProvider struct {
}
func (t *TemplateProvider) List() []Node {
var nodes []Node
for _, dao := range registeredDAOs {
nodes = append(nodes, dao.List()...)
}
return nodes
}
func (t *TemplateProvider) ByUUID(uuid string) (Node, error) {
var node Node
for _, dao := range registeredDAOs {
if n, e := dao.ByUUID(uuid); e == nil {
node = n
break
}
}
if node == nil {
return nil, errors.NotFound("template.not.found", "Cannot find template with this identifier")
} else {
return node, nil
}
}