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// Copyright 2012, 2013 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package deployer
import (
"launchpad.net/juju-core/names"
"launchpad.net/juju-core/state/api/params"
)
// Unit represents a juju unit as seen by the deployer worker.
type Unit struct {
tag string
life params.Life
st *State
}
// Tag returns the unit's tag.
func (u *Unit) Tag() string {
return u.tag
}
// Name returns the unit's name.
func (u *Unit) Name() string {
name, err := names.UnitNameFromTag(u.tag)
if err != nil {
return ""
}
return name
}
// Life returns the unit's lifecycle value.
func (u *Unit) Life() params.Life {
return u.life
}
// Refresh updates the cached local copy of the unit's data.
func (u *Unit) Refresh() error {
life, err := u.st.unitLife(u.tag)
if err != nil {
return err
}
u.life = life
return nil
}
// Remove removes the unit from state, calling EnsureDead first, then Remove.
// It will fail if the unit is not present.
func (u *Unit) Remove() error {
var result params.ErrorResults
args := params.Entities{
Entities: []params.Entity{{Tag: u.tag}},
}
err := u.st.caller.Call("Deployer", "", "Remove", args, &result)
if err != nil {
return err
}
return result.OneError()
}
// SetPassword sets the unit's password.
func (u *Unit) SetPassword(password string) error {
var result params.ErrorResults
args := params.PasswordChanges{
Changes: []params.PasswordChange{
{Tag: u.tag, Password: password},
},
}
err := u.st.caller.Call("Deployer", "", "SetPasswords", args, &result)
if err != nil {
return err
}
return result.OneError()
}
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