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bridge_c.go
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bridge_c.go
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// SPDX-FileCopyrightText: 2023 SAP SE or an SAP affiliate company and Open Component Model contributors.
//
// SPDX-License-Identifier: Apache-2.0
package repocpi
import (
"io"
"github.com/open-component-model/ocm/pkg/blobaccess"
"github.com/open-component-model/ocm/pkg/contexts/ocm/attrs/compositionmodeattr"
"github.com/open-component-model/ocm/pkg/contexts/ocm/compdesc"
"github.com/open-component-model/ocm/pkg/contexts/ocm/cpi"
"github.com/open-component-model/ocm/pkg/errors"
"github.com/open-component-model/ocm/pkg/finalizer"
"github.com/open-component-model/ocm/pkg/optionutils"
"github.com/open-component-model/ocm/pkg/refmgmt"
"github.com/open-component-model/ocm/pkg/refmgmt/resource"
)
type ComponentVersionAccessInfo struct {
Impl ComponentVersionAccessImpl
Lazy bool
Persistent bool
}
// ComponentAccessImpl is the provider implementation
// interface for component versions.
type ComponentAccessImpl interface {
SetBridge(bridge ComponentAccessBridge)
GetParentBridge() RepositoryViewManager
GetContext() cpi.Context
GetName() string
IsReadOnly() bool
ListVersions() ([]string, error)
HasVersion(vers string) (bool, error)
LookupVersion(version string) (*ComponentVersionAccessInfo, error)
NewVersion(version string, overrides ...bool) (*ComponentVersionAccessInfo, error)
io.Closer
}
type _componentAccessBridgeBase = resource.ResourceImplBase[cpi.ComponentAccess]
type componentAccessBridge struct {
*_componentAccessBridgeBase
ctx cpi.Context
name string
impl ComponentAccessImpl
}
func newComponentAccessBridge(impl ComponentAccessImpl, closer ...io.Closer) (ComponentAccessBridge, error) {
base, err := resource.NewResourceImplBase[cpi.ComponentAccess, cpi.Repository](impl.GetParentBridge(), closer...)
if err != nil {
return nil, err
}
b := &componentAccessBridge{
_componentAccessBridgeBase: base,
ctx: impl.GetContext(),
name: impl.GetName(),
impl: impl,
}
impl.SetBridge(b)
return b, nil
}
func (b *componentAccessBridge) Close() error {
list := errors.ErrListf("closing component %s", b.name)
refmgmt.AllocLog.Trace("closing component bridge", "name", b.name)
list.Add(b.impl.Close())
list.Add(b._componentAccessBridgeBase.Close())
refmgmt.AllocLog.Trace("closed component bridge", "name", b.name)
return list.Result()
}
func (b *componentAccessBridge) GetContext() cpi.Context {
return b.ctx
}
func (b *componentAccessBridge) GetName() string {
return b.name
}
func (b *componentAccessBridge) IsReadOnly() bool {
return b.impl.IsReadOnly()
}
func (c *componentAccessBridge) IsOwned(cv cpi.ComponentVersionAccess) bool {
bridge, err := GetComponentVersionAccessBridge(cv)
if err != nil {
return false
}
impl := bridge.(*componentVersionAccessBridge).impl
cvcompmgr := impl.GetParentBridge()
return c == cvcompmgr
}
func (b *componentAccessBridge) ListVersions() ([]string, error) {
return b.impl.ListVersions()
}
func (b *componentAccessBridge) LookupVersion(version string) (cpi.ComponentVersionAccess, error) {
i, err := b.impl.LookupVersion(version)
if err != nil {
return nil, err
}
if i == nil || i.Impl == nil {
return nil, errors.ErrInvalid("component implementation behaviour", "LookupVersion")
}
return NewComponentVersionAccess(b.GetName(), version, i.Impl, i.Lazy, i.Persistent, !compositionmodeattr.Get(b.GetContext()))
}
func (b *componentAccessBridge) HasVersion(vers string) (bool, error) {
return b.impl.HasVersion(vers)
}
func (b *componentAccessBridge) NewVersion(version string, overrides ...bool) (cpi.ComponentVersionAccess, error) {
i, err := b.impl.NewVersion(version, overrides...)
if err != nil {
return nil, err
}
if i == nil || i.Impl == nil {
return nil, errors.ErrInvalid("component implementation behaviour", "NewVersion")
}
return NewComponentVersionAccess(b.GetName(), version, i.Impl, i.Lazy, false, !compositionmodeattr.Get(b.GetContext()))
}
func (c *componentAccessBridge) AddVersion(cv cpi.ComponentVersionAccess, opts *cpi.AddVersionOptions) (ferr error) {
var finalize finalizer.Finalizer
defer finalize.FinalizeWithErrorPropagation(&ferr)
cvbridge, err := GetComponentVersionAccessBridge(cv)
if err != nil {
return err
}
forcestore := c.IsOwned(cv)
if !forcestore {
eff, err := c.NewVersion(cv.GetVersion(), optionutils.AsValue(opts.Overwrite))
if err != nil {
return err
}
finalize.With(func() error {
return eff.Close()
})
cvbridge, err = GetComponentVersionAccessBridge(eff)
if err != nil {
return err
}
d := eff.GetDescriptor()
*d = *cv.GetDescriptor().Copy()
err = c.setupLocalBlobs("resource", cv, cvbridge, d.Resources, &opts.BlobUploadOptions)
if err == nil {
err = c.setupLocalBlobs("source", cv, cvbridge, d.Sources, &opts.BlobUploadOptions)
}
if err != nil {
return err
}
}
cvbridge.EnablePersistence()
err = cvbridge.Update(!cvbridge.UseDirectAccess())
return err
}
func (c *componentAccessBridge) setupLocalBlobs(kind string, src cpi.ComponentVersionAccess, tgtbridge ComponentVersionAccessBridge, it compdesc.ArtifactAccessor, opts *cpi.BlobUploadOptions) (ferr error) {
ctx := src.GetContext()
// transfer all local blobs
prov := func(spec cpi.AccessSpec) (blob blobaccess.BlobAccess, ref string, global cpi.AccessSpec, err error) {
if spec.IsLocal(ctx) {
m, err := spec.AccessMethod(src)
if err != nil {
return nil, "", nil, err
}
return m.AsBlobAccess(), cpi.ReferenceHint(spec, src), cpi.GlobalAccess(spec, tgtbridge.GetContext()), nil
}
return nil, "", nil, nil
}
return tgtbridge.(*componentVersionAccessBridge).setupLocalBlobs(kind, prov, it, false, opts)
}