104 lines
3.1 KiB
Go
104 lines
3.1 KiB
Go
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// Copyright 2015 The appc Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package schema
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import (
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"bytes"
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"encoding/json"
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"errors"
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"fmt"
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"github.com/appc/spec/schema/types"
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"go4.org/errorutil"
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)
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const (
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ACIExtension = ".aci"
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ImageManifestKind = types.ACKind("ImageManifest")
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)
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type ImageManifest struct {
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ACKind types.ACKind `json:"acKind"`
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ACVersion types.SemVer `json:"acVersion"`
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Name types.ACIdentifier `json:"name"`
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Labels types.Labels `json:"labels,omitempty"`
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App *types.App `json:"app,omitempty"`
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Annotations types.Annotations `json:"annotations,omitempty"`
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Dependencies types.Dependencies `json:"dependencies,omitempty"`
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PathWhitelist []string `json:"pathWhitelist,omitempty"`
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}
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// imageManifest is a model to facilitate extra validation during the
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// unmarshalling of the ImageManifest
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type imageManifest ImageManifest
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func BlankImageManifest() *ImageManifest {
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return &ImageManifest{ACKind: ImageManifestKind, ACVersion: AppContainerVersion}
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}
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func (im *ImageManifest) UnmarshalJSON(data []byte) error {
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a := imageManifest(*im)
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err := json.Unmarshal(data, &a)
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if err != nil {
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if serr, ok := err.(*json.SyntaxError); ok {
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line, col, highlight := errorutil.HighlightBytePosition(bytes.NewReader(data), serr.Offset)
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return fmt.Errorf("\nError at line %d, column %d\n%s%v", line, col, highlight, err)
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}
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return err
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}
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nim := ImageManifest(a)
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if err := nim.assertValid(); err != nil {
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return err
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}
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*im = nim
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return nil
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}
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func (im ImageManifest) MarshalJSON() ([]byte, error) {
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if err := im.assertValid(); err != nil {
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return nil, err
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}
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return json.Marshal(imageManifest(im))
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}
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var imKindError = types.InvalidACKindError(ImageManifestKind)
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// assertValid performs extra assertions on an ImageManifest to ensure that
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// fields are set appropriately, etc. It is used exclusively when marshalling
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// and unmarshalling an ImageManifest. Most field-specific validation is
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// performed through the individual types being marshalled; assertValid()
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// should only deal with higher-level validation.
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func (im *ImageManifest) assertValid() error {
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if im.ACKind != ImageManifestKind {
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return imKindError
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}
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if im.ACVersion.Empty() {
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return errors.New(`acVersion must be set`)
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}
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if im.Name.Empty() {
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return errors.New(`name must be set`)
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}
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return nil
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}
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func (im *ImageManifest) GetLabel(name string) (val string, ok bool) {
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return im.Labels.Get(name)
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}
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func (im *ImageManifest) GetAnnotation(name string) (val string, ok bool) {
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return im.Annotations.Get(name)
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}
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