Files
poseidon/internal/environment/abstract_manager.go
Maximilian Paß ba43f667c2 Add architecture for multiple managers
using the chain of responsibility pattern.
2022-02-28 14:54:40 +01:00

41 lines
1.1 KiB
Go

package environment
import (
"github.com/openHPI/poseidon/internal/runner"
"github.com/openHPI/poseidon/pkg/dto"
)
// AbstractManager is used to have a fallback environment manager in the chain of responsibility
// following the null object pattern.
type AbstractManager struct {
nextHandler ManagerHandler
}
func (n *AbstractManager) SetNextHandler(next ManagerHandler) {
n.nextHandler = next
}
func (n *AbstractManager) NextHandler() ManagerHandler {
return n.nextHandler
}
func (n *AbstractManager) List(_ bool) ([]runner.ExecutionEnvironment, error) {
return []runner.ExecutionEnvironment{}, nil
}
func (n *AbstractManager) Get(_ dto.EnvironmentID, _ bool) (runner.ExecutionEnvironment, error) {
return nil, runner.ErrNullObject
}
func (n *AbstractManager) CreateOrUpdate(_ dto.EnvironmentID, _ dto.ExecutionEnvironmentRequest) (bool, error) {
return false, nil
}
func (n *AbstractManager) Delete(_ dto.EnvironmentID) (bool, error) {
return false, nil
}
func (n *AbstractManager) Statistics() map[dto.EnvironmentID]*dto.StatisticalExecutionEnvironmentData {
return map[dto.EnvironmentID]*dto.StatisticalExecutionEnvironmentData{}
}