Copyright 2017 Google LLC 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 storage

import (
	
	
	
	

	
	raw 
)
A Notification describes how to send Cloud PubSub messages when certain events occur in a bucket.
The ID of the notification.
	ID string
The ID of the topic to which this subscription publishes.
	TopicID string
The ID of the project to which the topic belongs.
	TopicProjectID string
Only send notifications about listed event types. If empty, send notifications for all event types. See https://cloud.google.com/storage/docs/pubsub-notifications#events.
	EventTypes []string
If present, only apply this notification configuration to object names that begin with this prefix.
	ObjectNamePrefix string
An optional list of additional attributes to attach to each Cloud PubSub message published for this notification subscription.
	CustomAttributes map[string]string
The contents of the message payload. See https://cloud.google.com/storage/docs/pubsub-notifications#payload.
	PayloadFormat string
}
Values for Notification.PayloadFormat.
Send no payload with notification messages.
	NoPayload = "NONE"
Send object metadata as JSON with notification messages.
	JSONPayload = "JSON_API_V1"
)
Values for Notification.EventTypes.
Event that occurs when an object is successfully created.
	ObjectFinalizeEvent = "OBJECT_FINALIZE"
Event that occurs when the metadata of an existing object changes.
	ObjectMetadataUpdateEvent = "OBJECT_METADATA_UPDATE"
Event that occurs when an object is permanently deleted.
	ObjectDeleteEvent = "OBJECT_DELETE"
Event that occurs when the live version of an object becomes an archived version.
	ObjectArchiveEvent = "OBJECT_ARCHIVE"
)

func ( *raw.Notification) *Notification {
	 := &Notification{
		ID:               .Id,
		EventTypes:       .EventTypes,
		ObjectNamePrefix: .ObjectNamePrefix,
		CustomAttributes: .CustomAttributes,
		PayloadFormat:    .PayloadFormat,
	}
	.TopicProjectID, .TopicID = parseNotificationTopic(.Topic)
	return 
}

var topicRE = regexp.MustCompile("^//pubsub.googleapis.com/projects/([^/]+)/topics/([^/]+)")
parseNotificationTopic extracts the project and topic IDs from from the full resource name returned by the service. If the name is malformed, it returns "?" for both IDs.
func ( string) (,  string) {
	 := topicRE.FindStringSubmatch()
	if  == nil {
		return "?", "?"
	}
	return [1], [2]
}

func ( *Notification) *raw.Notification {
	return &raw.Notification{
		Id: .ID,
		Topic: fmt.Sprintf("//pubsub.googleapis.com/projects/%s/topics/%s",
			.TopicProjectID, .TopicID),
		EventTypes:       .EventTypes,
		ObjectNamePrefix: .ObjectNamePrefix,
		CustomAttributes: .CustomAttributes,
		PayloadFormat:    string(.PayloadFormat),
	}
}
AddNotification adds a notification to b. You must set n's TopicProjectID, TopicID and PayloadFormat, and must not set its ID. The other fields are all optional. The returned Notification's ID can be used to refer to it.
func ( *BucketHandle) ( context.Context,  *Notification) ( *Notification,  error) {
	 = trace.StartSpan(, "cloud.google.com/go/storage.Bucket.AddNotification")
	defer func() { trace.EndSpan(, ) }()

	if .ID != "" {
		return nil, errors.New("storage: AddNotification: ID must not be set")
	}
	if .TopicProjectID == "" {
		return nil, errors.New("storage: AddNotification: missing TopicProjectID")
	}
	if .TopicID == "" {
		return nil, errors.New("storage: AddNotification: missing TopicID")
	}
	 := .c.raw.Notifications.Insert(.name, toRawNotification())
	setClientHeader(.Header())
	if .userProject != "" {
		.UserProject(.userProject)
	}
	,  := .Context().Do()
	if  != nil {
		return nil, 
	}
	return toNotification(), nil
}
Notifications returns all the Notifications configured for this bucket, as a map indexed by notification ID.
func ( *BucketHandle) ( context.Context) ( map[string]*Notification,  error) {
	 = trace.StartSpan(, "cloud.google.com/go/storage.Bucket.Notifications")
	defer func() { trace.EndSpan(, ) }()

	 := .c.raw.Notifications.List(.name)
	setClientHeader(.Header())
	if .userProject != "" {
		.UserProject(.userProject)
	}
	var  *raw.Notifications
	 = runWithRetry(, func() error {
		,  = .Context().Do()
		return 
	})
	if  != nil {
		return nil, 
	}
	return notificationsToMap(.Items), nil
}

func ( []*raw.Notification) map[string]*Notification {
	 := map[string]*Notification{}
	for ,  := range  {
		[.Id] = toNotification()
	}
	return 
}
DeleteNotification deletes the notification with the given ID.
func ( *BucketHandle) ( context.Context,  string) ( error) {
	 = trace.StartSpan(, "cloud.google.com/go/storage.Bucket.DeleteNotification")
	defer func() { trace.EndSpan(, ) }()

	 := .c.raw.Notifications.Delete(.name, )
	setClientHeader(.Header())
	if .userProject != "" {
		.UserProject(.userProject)
	}
	return .Context().Do()