/
collection.go
105 lines (88 loc) · 2.91 KB
/
collection.go
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// Copyright 2021 Nitric Technologies Pty Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package nitric
import (
"context"
"fmt"
"github.com/nitrictech/go-sdk/api/documents"
nitricv1 "github.com/nitrictech/nitric/core/pkg/api/nitric/v1"
)
type collection struct {
name string
manager Manager
}
type Collection interface {
With(permissions ...CollectionPermission) (documents.CollectionRef, error)
}
type CollectionPermission string
const (
CollectionReading CollectionPermission = "reading"
CollectionWriting CollectionPermission = "writing"
CollectionDeleting CollectionPermission = "deleting"
)
var CollectionEverything []CollectionPermission = []CollectionPermission{CollectionReading, CollectionWriting, CollectionDeleting}
// NewCollection register this collection as a required resource for the calling function/container.
func NewCollection(name string) Collection {
return &collection{
name: name,
manager: defaultManager,
}
}
func (c *collection) With(permissions ...CollectionPermission) (documents.CollectionRef, error) {
return defaultManager.newCollection(c.name, permissions...)
}
func (m *manager) newCollection(name string, permissions ...CollectionPermission) (documents.CollectionRef, error) {
rsc, err := m.resourceServiceClient()
if err != nil {
return nil, err
}
colRes := &nitricv1.Resource{
Type: nitricv1.ResourceType_Collection,
Name: name,
}
dr := &nitricv1.ResourceDeclareRequest{
Resource: colRes,
Config: &nitricv1.ResourceDeclareRequest_Collection{
Collection: &nitricv1.CollectionResource{},
},
}
_, err = rsc.Declare(context.Background(), dr)
if err != nil {
return nil, err
}
actions := []nitricv1.Action{}
for _, perm := range permissions {
switch perm {
case CollectionReading:
actions = append(actions, nitricv1.Action_CollectionDocumentRead, nitricv1.Action_CollectionList, nitricv1.Action_CollectionQuery)
case CollectionWriting:
actions = append(actions, nitricv1.Action_CollectionDocumentWrite)
case CollectionDeleting:
actions = append(actions, nitricv1.Action_CollectionDocumentDelete)
default:
return nil, fmt.Errorf("collectionPermission %s unknown", perm)
}
}
_, err = rsc.Declare(context.Background(), functionResourceDeclareRequest(colRes, actions))
if err != nil {
return nil, err
}
if m.docs == nil {
m.docs, err = documents.New()
if err != nil {
return nil, err
}
}
return m.docs.Collection(name), nil
}