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// Copyright 2012, 2013 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package state
import (
"net/url"
"launchpad.net/juju-core/charm"
)
// charmDoc represents the internal state of a charm in MongoDB.
type charmDoc struct {
URL *charm.URL `bson:"_id"`
Meta *charm.Meta
Config *charm.Config
BundleURL *url.URL
BundleSha256 string
PendingUpload bool
Placeholder bool
}
// Charm represents the state of a charm in the environment.
type Charm struct {
st *State
doc charmDoc
}
func newCharm(st *State, cdoc *charmDoc) (*Charm, error) {
return &Charm{st: st, doc: *cdoc}, nil
}
func (c *Charm) String() string {
return c.doc.URL.String()
}
// URL returns the URL that identifies the charm.
func (c *Charm) URL() *charm.URL {
clone := *c.doc.URL
return &clone
}
// Revision returns the monotonically increasing charm
// revision number.
func (c *Charm) Revision() int {
return c.doc.URL.Revision
}
// Meta returns the metadata of the charm.
func (c *Charm) Meta() *charm.Meta {
return c.doc.Meta
}
// Config returns the configuration of the charm.
func (c *Charm) Config() *charm.Config {
return c.doc.Config
}
// BundleURL returns the url to the charm bundle in
// the provider storage.
func (c *Charm) BundleURL() *url.URL {
return c.doc.BundleURL
}
// BundleSha256 returns the SHA256 digest of the charm bundle bytes.
func (c *Charm) BundleSha256() string {
return c.doc.BundleSha256
}
// IsUploaded returns whether the charm has been uploaded to the
// provider storage.
func (c *Charm) IsUploaded() bool {
return !c.doc.PendingUpload
}
// IsPlaceholder returns whether the charm record is just a placeholder
// rather than representing a deployed charm.
func (c *Charm) IsPlaceholder() bool {
return c.doc.Placeholder
}
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