Files
polyphem/internal/environment/abstract_manager.go
2024-08-12 10:02:36 +02:00

78 lines
1.9 KiB
Go

package environment
import (
"context"
"fmt"
"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
runnerManager runner.Manager
}
func (n *AbstractManager) SetNextHandler(next ManagerHandler) {
n.nextHandler = next
}
func (n *AbstractManager) NextHandler() ManagerHandler {
if n.HasNextHandler() {
return n.nextHandler
} else {
return &AbstractManager{}
}
}
func (n *AbstractManager) HasNextHandler() bool {
return n.nextHandler != nil
}
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.ErrRunnerNotFound
}
func (n *AbstractManager) CreateOrUpdate(_ dto.EnvironmentID, _ dto.ExecutionEnvironmentRequest, _ context.Context) (
bool, error) {
return false, nil
}
func (n *AbstractManager) Delete(id dto.EnvironmentID) (bool, error) {
if n.runnerManager == nil {
return false, nil
}
e, ok := n.runnerManager.GetEnvironment(id)
if !ok {
isFound, err := n.NextHandler().Delete(id)
if err != nil {
return false, fmt.Errorf("abstract wrapped: %w", err)
}
return isFound, nil
}
n.runnerManager.DeleteEnvironment(id)
if err := e.Delete(runner.ErrDestroyedByAPIRequest); err != nil {
return true, fmt.Errorf("could not delete environment: %w", err)
}
return true, nil
}
func (n *AbstractManager) Statistics() map[dto.EnvironmentID]*dto.StatisticalExecutionEnvironmentData {
if n.runnerManager == nil {
return map[dto.EnvironmentID]*dto.StatisticalExecutionEnvironmentData{}
}
statistics := n.NextHandler().Statistics()
for k, v := range n.runnerManager.EnvironmentStatistics() {
statistics[k] = v
}
return statistics
}