forked from juju/juju
/
backend.go
52 lines (42 loc) · 1.37 KB
/
backend.go
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// Copyright 2016 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package modelconfig
import (
names "gopkg.in/juju/names.v2"
"github.com/juju/juju/apiserver/common"
"github.com/juju/juju/environs/config"
"github.com/juju/juju/state"
)
// Backend contains the state.State methods used in this package,
// allowing stubs to be created for testing.
type Backend interface {
common.BlockGetter
ControllerTag() names.ControllerTag
ModelTag() names.ModelTag
ModelConfigValues() (config.ConfigValues, error)
UpdateModelConfig(map[string]interface{}, []string, ...state.ValidateConfigFunc) error
Sequences() (map[string]int, error)
SetSLA(level, owner string, credentials []byte) error
SLALevel() (string, error)
}
type stateShim struct {
*state.State
model *state.Model
}
func (st stateShim) UpdateModelConfig(u map[string]interface{}, r []string, a ...state.ValidateConfigFunc) error {
return st.model.UpdateModelConfig(u, r, a...)
}
func (st stateShim) ModelConfigValues() (config.ConfigValues, error) {
return st.model.ModelConfigValues()
}
func (st stateShim) ModelTag() names.ModelTag {
m, err := st.State.Model()
if err != nil {
return names.NewModelTag(st.State.ModelUUID())
}
return m.ModelTag()
}
// NewStateBackend creates a backend for the facade to use.
func NewStateBackend(m *state.Model) Backend {
return stateShim{m.State(), m}
}