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  • Committer: Nicholas Skaggs
  • Date: 2016-10-24 20:56:05 UTC
  • Revision ID: nicholas.skaggs@canonical.com-20161024205605-z8lta0uvuhtxwzwl
Initi with beta15

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src/github.com/juju/juju/apiserver/client/backend.go
 
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// Copyright 2015 Canonical Ltd.
 
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// Licensed under the AGPLv3, see LICENCE file for details.
 
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package client
 
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import (
 
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        "github.com/juju/version"
 
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        "gopkg.in/juju/charm.v6-unstable"
 
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        "gopkg.in/juju/names.v2"
 
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        "github.com/juju/juju/constraints"
 
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        "github.com/juju/juju/core/description"
 
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        "github.com/juju/juju/environs/config"
 
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        "github.com/juju/juju/instance"
 
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        "github.com/juju/juju/network"
 
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        "github.com/juju/juju/state"
 
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        "github.com/juju/juju/status"
 
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)
 
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// Unit represents a state.Unit.
 
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type Unit interface {
 
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        status.StatusHistoryGetter
 
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        Life() state.Life
 
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        Destroy() (err error)
 
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        IsPrincipal() bool
 
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        PublicAddress() (network.Address, error)
 
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        PrivateAddress() (network.Address, error)
 
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        Resolve(retryHooks bool) error
 
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        AgentHistory() status.StatusHistoryGetter
 
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}
 
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// Backend contains the state.State methods used in this package,
 
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// allowing stubs to be created for testing.
 
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type Backend interface {
 
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        FindEntity(names.Tag) (state.Entity, error)
 
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        Unit(string) (Unit, error)
 
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        Application(string) (*state.Application, error)
 
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        Machine(string) (*state.Machine, error)
 
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        AllMachines() ([]*state.Machine, error)
 
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        AllApplications() ([]*state.Application, error)
 
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        AllRelations() ([]*state.Relation, error)
 
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        AddOneMachine(state.MachineTemplate) (*state.Machine, error)
 
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        AddMachineInsideMachine(state.MachineTemplate, string, instance.ContainerType) (*state.Machine, error)
 
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        AddMachineInsideNewMachine(template, parentTemplate state.MachineTemplate, containerType instance.ContainerType) (*state.Machine, error)
 
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        ModelConstraints() (constraints.Value, error)
 
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        ModelConfig() (*config.Config, error)
 
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        ModelConfigValues() (config.ConfigValues, error)
 
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        UpdateModelConfig(map[string]interface{}, []string, state.ValidateConfigFunc) error
 
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        SetModelConstraints(constraints.Value) error
 
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        ModelUUID() string
 
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        ModelTag() names.ModelTag
 
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        Model() (*state.Model, error)
 
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        ForModel(tag names.ModelTag) (*state.State, error)
 
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        SetModelAgentVersion(version.Number) error
 
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        SetAnnotations(state.GlobalEntity, map[string]string) error
 
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        Annotations(state.GlobalEntity) (map[string]string, error)
 
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        InferEndpoints(...string) ([]state.Endpoint, error)
 
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        EndpointsRelation(...state.Endpoint) (*state.Relation, error)
 
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        Charm(*charm.URL) (*state.Charm, error)
 
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        LatestPlaceholderCharm(*charm.URL) (*state.Charm, error)
 
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        AddRelation(...state.Endpoint) (*state.Relation, error)
 
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        AddModelUser(state.UserAccessSpec) (description.UserAccess, error)
 
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        AddControllerUser(state.UserAccessSpec) (description.UserAccess, error)
 
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        RemoveUserAccess(names.UserTag, names.Tag) error
 
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        Watch() *state.Multiwatcher
 
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        AbortCurrentUpgrade() error
 
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        APIHostPorts() ([][]network.HostPort, error)
 
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        LatestModelMigration() (state.ModelMigration, error)
 
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}
 
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func NewStateBackend(st *state.State) Backend {
 
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        return stateShim{st}
 
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}
 
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type stateShim struct {
 
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        *state.State
 
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}
 
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func (s stateShim) Unit(name string) (Unit, error) {
 
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        u, err := s.State.Unit(name)
 
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        if err != nil {
 
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                return nil, err
 
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        }
 
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        return u, nil
 
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}