Golang api.PatchType函數代碼示例

func getPatchedJS(contentType string, originalJS, patchJS []byte, obj runtime.Object) ([]byte, error) {
	patchType := api.PatchType(contentType)
	switch patchType {
	case api.JSONPatchType:
		patchObj, err := jsonpatch.DecodePatch(patchJS)
		if err != nil {
			return nil, err
		}
		return patchObj.Apply(originalJS)
	case api.MergePatchType:
		return jsonpatch.MergePatch(originalJS, patchJS)
	case api.StrategicMergePatchType:
		return strategicpatch.StrategicMergePatchData(originalJS, patchJS, obj)
	default:
		// only here as a safety net - go-restful filters content-type
		return nil, fmt.Errorf("unknown Content-Type header for patch: %s", contentType)
	}
}

// PatchResource returns a function that will handle a resource patch
// TODO: Eventually PatchResource should just use GuaranteedUpdate and this routine should be a bit cleaner
func PatchResource(r rest.Patcher, scope RequestScope, typer runtime.ObjectTyper, admit admission.Interface, converter runtime.ObjectConvertor) restful.RouteFunction {
	return func(req *restful.Request, res *restful.Response) {
		w := res.ResponseWriter

		// TODO: we either want to remove timeout or document it (if we
		// document, move timeout out of this function and declare it in
		// api_installer)
		timeout := parseTimeout(req.Request.URL.Query().Get("timeout"))

		namespace, name, err := scope.Namer.Name(req)
		if err != nil {
			errorJSON(err, scope.Codec, w)
			return
		}

		obj := r.New()
		ctx := scope.ContextFunc(req)
		ctx = api.WithNamespace(ctx, namespace)

		// PATCH requires same permission as UPDATE
		if admit.Handles(admission.Update) {
			userInfo, _ := api.UserFrom(ctx)

			err = admit.Admit(admission.NewAttributesRecord(obj, scope.Kind, namespace, name, scope.Resource, scope.Subresource, admission.Update, userInfo))
			if err != nil {
				errorJSON(err, scope.Codec, w)
				return
			}
		}

		versionedObj, err := converter.ConvertToVersion(r.New(), scope.APIVersion)
		if err != nil {
			errorJSON(err, scope.Codec, w)
			return
		}

		contentType := req.HeaderParameter("Content-Type")
		// Remove "; charset=" if included in header.
		if idx := strings.Index(contentType, ";"); idx > 0 {
			contentType = contentType[:idx]
		}
		patchType := api.PatchType(contentType)

		patchJS, err := readBody(req.Request)
		if err != nil {
			errorJSON(err, scope.Codec, w)
			return
		}

		result, err := patchResource(ctx, timeout, versionedObj, r, name, patchType, patchJS, scope.Namer, scope.Codec)
		if err != nil {
			errorJSON(err, scope.Codec, w)
			return
		}

		if err := setSelfLink(result, req, scope.Namer); err != nil {
			errorJSON(err, scope.Codec, w)
			return
		}

		write(http.StatusOK, scope.APIVersion, scope.Codec, result, w, req.Request)
	}

}

// PatchResource returns a function that will handle a resource patch
// TODO: Eventually PatchResource should just use GuaranteedUpdate and this routine should be a bit cleaner
func PatchResource(r rest.Patcher, scope RequestScope, typer runtime.ObjectTyper, admit admission.Interface, converter runtime.ObjectConvertor) restful.RouteFunction {
	return func(req *restful.Request, res *restful.Response) {
		w := res.ResponseWriter

		// TODO: we either want to remove timeout or document it (if we
		// document, move timeout out of this function and declare it in
		// api_installer)
		timeout := parseTimeout(req.Request.URL.Query().Get("timeout"))

		namespace, name, err := scope.Namer.Name(req)
		if err != nil {
			scope.err(err, res.ResponseWriter, req.Request)
			return
		}

		ctx := scope.ContextFunc(req)
		ctx = api.WithNamespace(ctx, namespace)

		versionedObj, err := converter.ConvertToVersion(r.New(), scope.Kind.GroupVersion())
		if err != nil {
			scope.err(err, res.ResponseWriter, req.Request)
			return
		}

		// TODO: handle this in negotiation
		contentType := req.HeaderParameter("Content-Type")
		// Remove "; charset=" if included in header.
		if idx := strings.Index(contentType, ";"); idx > 0 {
			contentType = contentType[:idx]
		}
		patchType := api.PatchType(contentType)

		patchJS, err := readBody(req.Request)
		if err != nil {
			scope.err(err, res.ResponseWriter, req.Request)
			return
		}

		s, ok := scope.Serializer.SerializerForMediaType("application/json", nil)
		if !ok {
			scope.err(fmt.Errorf("no serializer defined for JSON"), res.ResponseWriter, req.Request)
			return
		}
		gv := scope.Kind.GroupVersion()
		codec := runtime.NewCodec(
			scope.Serializer.EncoderForVersion(s, gv),
			scope.Serializer.DecoderToVersion(s, unversioned.GroupVersion{Group: gv.Group, Version: runtime.APIVersionInternal}),
		)

		updateAdmit := func(updatedObject runtime.Object) error {
			if admit != nil && admit.Handles(admission.Update) {
				userInfo, _ := api.UserFrom(ctx)
				return admit.Admit(admission.NewAttributesRecord(updatedObject, scope.Kind, namespace, name, scope.Resource, scope.Subresource, admission.Update, userInfo))
			}

			return nil
		}

		result, err := patchResource(ctx, updateAdmit, timeout, versionedObj, r, name, patchType, patchJS, scope.Namer, codec)
		if err != nil {
			scope.err(err, res.ResponseWriter, req.Request)
			return
		}

		if err := setSelfLink(result, req, scope.Namer); err != nil {
			scope.err(err, res.ResponseWriter, req.Request)
			return
		}

		write(http.StatusOK, scope.Kind.GroupVersion(), scope.Serializer, result, w, req.Request)
	}

}

// PatchResource returns a function that will handle a resource patch
// TODO: Eventually PatchResource should just use GuaranteedUpdate and this routine should be a bit cleaner
func PatchResource(r rest.Patcher, scope RequestScope, typer runtime.ObjectTyper, admit admission.Interface, converter runtime.ObjectConvertor) restful.RouteFunction {
	return func(req *restful.Request, res *restful.Response) {
		w := res.ResponseWriter

		// TODO: we either want to remove timeout or document it (if we
		// document, move timeout out of this function and declare it in
		// api_installer)
		timeout := parseTimeout(req.Request.URL.Query().Get("timeout"))

		namespace, name, err := scope.Namer.Name(req)
		if err != nil {
			errorJSON(err, scope.Codec, w)
			return
		}

		obj := r.New()
		ctx := scope.ContextFunc(req)
		ctx = api.WithNamespace(ctx, namespace)

		if admit != nil && admit.Handles(admission.Patch) {
			userInfo, _ := api.UserFrom(ctx)

			// TODO this record should include the patch itself.  Right now we can't do that because patches are not runtime.Objects
			err = admit.Admit(admission.NewAttributesRecord(obj, scope.Kind.GroupKind(), namespace, name, scope.Resource.GroupResource(), scope.Subresource, admission.Patch, userInfo))
			if err != nil {
				errorJSON(err, scope.Codec, w)
				return
			}
		}

		versionedObj, err := converter.ConvertToVersion(r.New(), scope.Kind.GroupVersion().String())
		if err != nil {
			errorJSON(err, scope.Codec, w)
			return
		}

		contentType := req.HeaderParameter("Content-Type")
		// Remove "; charset=" if included in header.
		if idx := strings.Index(contentType, ";"); idx > 0 {
			contentType = contentType[:idx]
		}
		patchType := api.PatchType(contentType)

		patchJS, err := readBody(req.Request)
		if err != nil {
			errorJSON(err, scope.Codec, w)
			return
		}

		updateAdmit := func(updatedObject runtime.Object) error {
			if admit != nil && admit.Handles(admission.Update) {
				userInfo, _ := api.UserFrom(ctx)
				return admit.Admit(admission.NewAttributesRecord(updatedObject, scope.Kind.GroupKind(), namespace, name, scope.Resource.GroupResource(), scope.Subresource, admission.Update, userInfo))
			}

			return nil
		}

		result, err := patchResource(ctx, updateAdmit, timeout, versionedObj, r, name, patchType, patchJS, scope.Namer, scope.Codec)
		if err != nil {
			errorJSON(err, scope.Codec, w)
			return
		}

		if err := setSelfLink(result, req, scope.Namer); err != nil {
			errorJSON(err, scope.Codec, w)
			return
		}

		write(http.StatusOK, scope.Kind.GroupVersion(), scope.Codec, result, w, req.Request)
	}

}