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manager.go
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manager.go
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/*
* Copyright (c) 2018. Abstrium SAS <team (at) pydio.com>
* This file is part of Pydio Cells.
*
* Pydio Cells is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Pydio Cells is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Pydio Cells. If not, see <http://www.gnu.org/licenses/>.
*
* The latest code can be found at <https://pydio.com>.
*/
package actions
import (
"sync"
"github.com/micro/go-micro/errors"
"github.com/pydio/cells/common/forms"
)
var (
defaultManager *ActionsManager
)
// GetActionsManager provides global access to the default action manager.
func GetActionsManager() *ActionsManager {
if defaultManager == nil {
defaultManager = &ActionsManager{
registeredActions: make(map[string]Concrete),
}
}
return defaultManager
}
type ActionsManager struct {
registeredActions map[string]Concrete
lock sync.Mutex
}
func (m *ActionsManager) Register(name string, a Concrete) {
m.lock.Lock()
defer m.lock.Unlock()
m.registeredActions[name] = a
}
func (m *ActionsManager) ActionById(actionId string) (ConcreteAction, bool) {
m.lock.Lock()
defer m.lock.Unlock()
generator, ok := m.registeredActions[actionId]
if !ok {
return nil, false
}
return generator(), true
}
// DescribeActions provides a list of all registered actions
func (m *ActionsManager) DescribeActions(languages ...string) map[string]ActionDescription {
m.lock.Lock()
defer m.lock.Unlock()
data := map[string]ActionDescription{}
for a, gen := range m.registeredActions {
action := gen()
if descProvider, ok := action.(DescriptionProviderAction); ok {
//desc.Label = labelProvider.GetLabel(languages...)
data[a] = descProvider.GetDescription(languages...)
} else {
data[a] = ActionDescription{
ID: a,
}
}
}
return data
}
// LoadActionForm tries to load a forms.Form object that can be serialized for frontend
func (m *ActionsManager) LoadActionForm(actionID string) (*forms.Form, error) {
if action, ok := m.ActionById(actionID); ok {
if desc, ok := action.(DescriptionProviderAction); ok {
form := desc.GetParametersForm()
if form != nil {
return form, nil
}
}
}
return nil, errors.NotFound("action.not.found", "cannot find action with ID %s", actionID)
}