mirror of https://github.com/portainer/portainer
69 lines
1.9 KiB
Go
69 lines
1.9 KiB
Go
package dataservices
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
|
|
perrors "github.com/portainer/portainer/api/dataservices/errors"
|
|
|
|
"github.com/rs/zerolog/log"
|
|
)
|
|
|
|
// ErrStop signals the stop of computation when filtering results
|
|
var ErrStop = errors.New("stop")
|
|
|
|
func IsErrObjectNotFound(e error) bool {
|
|
return errors.Is(e, perrors.ErrObjectNotFound)
|
|
}
|
|
|
|
// AppendFn appends elements to the given collection slice
|
|
func AppendFn[T any](collection *[]T) func(obj interface{}) (interface{}, error) {
|
|
return func(obj interface{}) (interface{}, error) {
|
|
element, ok := obj.(*T)
|
|
if !ok {
|
|
log.Debug().Str("obj", fmt.Sprintf("%#v", obj)).Msg("type assertion failed")
|
|
return nil, fmt.Errorf("failed to convert to %T object: %#v", new(T), obj)
|
|
}
|
|
|
|
*collection = append(*collection, *element)
|
|
|
|
return new(T), nil
|
|
}
|
|
}
|
|
|
|
// FilterFn appends elements to the given collection when the predicate is true
|
|
func FilterFn[T any](collection *[]T, predicate func(T) bool) func(obj interface{}) (interface{}, error) {
|
|
return func(obj interface{}) (interface{}, error) {
|
|
element, ok := obj.(*T)
|
|
if !ok {
|
|
log.Debug().Str("obj", fmt.Sprintf("%#v", obj)).Msg("type assertion failed")
|
|
return nil, fmt.Errorf("failed to convert to %T object: %#v", new(T), obj)
|
|
}
|
|
|
|
if predicate(*element) {
|
|
*collection = append(*collection, *element)
|
|
}
|
|
|
|
return new(T), nil
|
|
}
|
|
}
|
|
|
|
// FirstFn sets the element to the first one that satisfies the predicate and stops the computation, returns ErrStop on
|
|
// success
|
|
func FirstFn[T any](element *T, predicate func(T) bool) func(obj interface{}) (interface{}, error) {
|
|
return func(obj interface{}) (interface{}, error) {
|
|
e, ok := obj.(*T)
|
|
if !ok {
|
|
log.Debug().Str("obj", fmt.Sprintf("%#v", obj)).Msg("type assertion failed")
|
|
return nil, fmt.Errorf("failed to convert to %T object: %#v", new(T), obj)
|
|
}
|
|
|
|
if predicate(*e) {
|
|
*element = *e
|
|
return new(T), ErrStop
|
|
}
|
|
|
|
return new(T), nil
|
|
}
|
|
}
|