399 lines
14 KiB
Go
399 lines
14 KiB
Go
|
// Copyright 2018 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
|
||
|
|
//
|
||
|
|
// https://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.
|
||
|
|
|
||
|
|
// AUTO-GENERATED CODE. DO NOT EDIT.
|
||
|
|
|
||
|
|
package pubsub
|
||
|
|
|
||
|
|
import (
|
||
|
|
"math"
|
||
|
|
"time"
|
||
|
|
|
||
|
|
"cloud.google.com/go/iam"
|
||
|
|
"cloud.google.com/go/internal/version"
|
||
|
|
gax "github.com/googleapis/gax-go"
|
||
|
|
"golang.org/x/net/context"
|
||
|
|
"google.golang.org/api/iterator"
|
||
|
|
"google.golang.org/api/option"
|
||
|
|
"google.golang.org/api/transport"
|
||
|
|
pubsubpb "google.golang.org/genproto/googleapis/pubsub/v1"
|
||
|
|
"google.golang.org/grpc"
|
||
|
|
"google.golang.org/grpc/codes"
|
||
|
|
"google.golang.org/grpc/metadata"
|
||
|
|
)
|
||
|
|
|
||
|
|
// PublisherCallOptions contains the retry settings for each method of PublisherClient.
|
||
|
|
type PublisherCallOptions struct {
|
||
|
|
CreateTopic []gax.CallOption
|
||
|
|
UpdateTopic []gax.CallOption
|
||
|
|
Publish []gax.CallOption
|
||
|
|
GetTopic []gax.CallOption
|
||
|
|
ListTopics []gax.CallOption
|
||
|
|
ListTopicSubscriptions []gax.CallOption
|
||
|
|
DeleteTopic []gax.CallOption
|
||
|
|
}
|
||
|
|
|
||
|
|
func defaultPublisherClientOptions() []option.ClientOption {
|
||
|
|
return []option.ClientOption{
|
||
|
|
option.WithEndpoint("pubsub.googleapis.com:443"),
|
||
|
|
option.WithScopes(DefaultAuthScopes()...),
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func defaultPublisherCallOptions() *PublisherCallOptions {
|
||
|
|
retry := map[[2]string][]gax.CallOption{
|
||
|
|
{"default", "idempotent"}: {
|
||
|
|
gax.WithRetry(func() gax.Retryer {
|
||
|
|
return gax.OnCodes([]codes.Code{
|
||
|
|
codes.DeadlineExceeded,
|
||
|
|
codes.Unavailable,
|
||
|
|
}, gax.Backoff{
|
||
|
|
Initial: 100 * time.Millisecond,
|
||
|
|
Max: 60000 * time.Millisecond,
|
||
|
|
Multiplier: 1.3,
|
||
|
|
})
|
||
|
|
}),
|
||
|
|
},
|
||
|
|
{"messaging", "one_plus_delivery"}: {
|
||
|
|
gax.WithRetry(func() gax.Retryer {
|
||
|
|
return gax.OnCodes([]codes.Code{
|
||
|
|
codes.Aborted,
|
||
|
|
codes.Canceled,
|
||
|
|
codes.DeadlineExceeded,
|
||
|
|
codes.Internal,
|
||
|
|
codes.ResourceExhausted,
|
||
|
|
codes.Unavailable,
|
||
|
|
codes.Unknown,
|
||
|
|
}, gax.Backoff{
|
||
|
|
Initial: 100 * time.Millisecond,
|
||
|
|
Max: 60000 * time.Millisecond,
|
||
|
|
Multiplier: 1.3,
|
||
|
|
})
|
||
|
|
}),
|
||
|
|
},
|
||
|
|
}
|
||
|
|
return &PublisherCallOptions{
|
||
|
|
CreateTopic: retry[[2]string{"default", "idempotent"}],
|
||
|
|
UpdateTopic: retry[[2]string{"default", "idempotent"}],
|
||
|
|
Publish: retry[[2]string{"messaging", "one_plus_delivery"}],
|
||
|
|
GetTopic: retry[[2]string{"default", "idempotent"}],
|
||
|
|
ListTopics: retry[[2]string{"default", "idempotent"}],
|
||
|
|
ListTopicSubscriptions: retry[[2]string{"default", "idempotent"}],
|
||
|
|
DeleteTopic: retry[[2]string{"default", "idempotent"}],
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// PublisherClient is a client for interacting with Google Cloud Pub/Sub API.
|
||
|
|
type PublisherClient struct {
|
||
|
|
// The connection to the service.
|
||
|
|
conn *grpc.ClientConn
|
||
|
|
|
||
|
|
// The gRPC API client.
|
||
|
|
publisherClient pubsubpb.PublisherClient
|
||
|
|
|
||
|
|
// The call options for this service.
|
||
|
|
CallOptions *PublisherCallOptions
|
||
|
|
|
||
|
|
// The x-goog-* metadata to be sent with each request.
|
||
|
|
xGoogMetadata metadata.MD
|
||
|
|
}
|
||
|
|
|
||
|
|
// NewPublisherClient creates a new publisher client.
|
||
|
|
//
|
||
|
|
// The service that an application uses to manipulate topics, and to send
|
||
|
|
// messages to a topic.
|
||
|
|
func NewPublisherClient(ctx context.Context, opts ...option.ClientOption) (*PublisherClient, error) {
|
||
|
|
conn, err := transport.DialGRPC(ctx, append(defaultPublisherClientOptions(), opts...)...)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
c := &PublisherClient{
|
||
|
|
conn: conn,
|
||
|
|
CallOptions: defaultPublisherCallOptions(),
|
||
|
|
|
||
|
|
publisherClient: pubsubpb.NewPublisherClient(conn),
|
||
|
|
}
|
||
|
|
c.SetGoogleClientInfo()
|
||
|
|
return c, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// Connection returns the client's connection to the API service.
|
||
|
|
func (c *PublisherClient) Connection() *grpc.ClientConn {
|
||
|
|
return c.conn
|
||
|
|
}
|
||
|
|
|
||
|
|
// Close closes the connection to the API service. The user should invoke this when
|
||
|
|
// the client is no longer required.
|
||
|
|
func (c *PublisherClient) Close() error {
|
||
|
|
return c.conn.Close()
|
||
|
|
}
|
||
|
|
|
||
|
|
// SetGoogleClientInfo sets the name and version of the application in
|
||
|
|
// the `x-goog-api-client` header passed on each request. Intended for
|
||
|
|
// use by Google-written clients.
|
||
|
|
func (c *PublisherClient) SetGoogleClientInfo(keyval ...string) {
|
||
|
|
kv := append([]string{"gl-go", version.Go()}, keyval...)
|
||
|
|
kv = append(kv, "gapic", version.Repo, "gax", gax.Version, "grpc", grpc.Version)
|
||
|
|
c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
|
||
|
|
}
|
||
|
|
|
||
|
|
func (c *PublisherClient) SubscriptionIAM(subscription *pubsubpb.Subscription) *iam.Handle {
|
||
|
|
return iam.InternalNewHandle(c.Connection(), subscription.Name)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (c *PublisherClient) TopicIAM(topic *pubsubpb.Topic) *iam.Handle {
|
||
|
|
return iam.InternalNewHandle(c.Connection(), topic.Name)
|
||
|
|
}
|
||
|
|
|
||
|
|
// CreateTopic creates the given topic with the given name.
|
||
|
|
func (c *PublisherClient) CreateTopic(ctx context.Context, req *pubsubpb.Topic, opts ...gax.CallOption) (*pubsubpb.Topic, error) {
|
||
|
|
ctx = insertMetadata(ctx, c.xGoogMetadata)
|
||
|
|
opts = append(c.CallOptions.CreateTopic[0:len(c.CallOptions.CreateTopic):len(c.CallOptions.CreateTopic)], opts...)
|
||
|
|
var resp *pubsubpb.Topic
|
||
|
|
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
|
||
|
|
var err error
|
||
|
|
resp, err = c.publisherClient.CreateTopic(ctx, req, settings.GRPC...)
|
||
|
|
return err
|
||
|
|
}, opts...)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
return resp, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// UpdateTopic updates an existing topic. Note that certain properties of a topic are not
|
||
|
|
// modifiable. Options settings follow the style guide:
|
||
|
|
// NOTE: The style guide requires body: "topic" instead of body: "*".
|
||
|
|
// Keeping the latter for internal consistency in V1, however it should be
|
||
|
|
// corrected in V2. See
|
||
|
|
// https://cloud.google.com/apis/design/standard_methods#update for details.
|
||
|
|
func (c *PublisherClient) UpdateTopic(ctx context.Context, req *pubsubpb.UpdateTopicRequest, opts ...gax.CallOption) (*pubsubpb.Topic, error) {
|
||
|
|
ctx = insertMetadata(ctx, c.xGoogMetadata)
|
||
|
|
opts = append(c.CallOptions.UpdateTopic[0:len(c.CallOptions.UpdateTopic):len(c.CallOptions.UpdateTopic)], opts...)
|
||
|
|
var resp *pubsubpb.Topic
|
||
|
|
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
|
||
|
|
var err error
|
||
|
|
resp, err = c.publisherClient.UpdateTopic(ctx, req, settings.GRPC...)
|
||
|
|
return err
|
||
|
|
}, opts...)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
return resp, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// Publish adds one or more messages to the topic. Returns NOT_FOUND if the topic
|
||
|
|
// does not exist. The message payload must not be empty; it must contain
|
||
|
|
// either a non-empty data field, or at least one attribute.
|
||
|
|
func (c *PublisherClient) Publish(ctx context.Context, req *pubsubpb.PublishRequest, opts ...gax.CallOption) (*pubsubpb.PublishResponse, error) {
|
||
|
|
ctx = insertMetadata(ctx, c.xGoogMetadata)
|
||
|
|
opts = append(c.CallOptions.Publish[0:len(c.CallOptions.Publish):len(c.CallOptions.Publish)], opts...)
|
||
|
|
var resp *pubsubpb.PublishResponse
|
||
|
|
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
|
||
|
|
var err error
|
||
|
|
resp, err = c.publisherClient.Publish(ctx, req, settings.GRPC...)
|
||
|
|
return err
|
||
|
|
}, opts...)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
return resp, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// GetTopic gets the configuration of a topic.
|
||
|
|
func (c *PublisherClient) GetTopic(ctx context.Context, req *pubsubpb.GetTopicRequest, opts ...gax.CallOption) (*pubsubpb.Topic, error) {
|
||
|
|
ctx = insertMetadata(ctx, c.xGoogMetadata)
|
||
|
|
opts = append(c.CallOptions.GetTopic[0:len(c.CallOptions.GetTopic):len(c.CallOptions.GetTopic)], opts...)
|
||
|
|
var resp *pubsubpb.Topic
|
||
|
|
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
|
||
|
|
var err error
|
||
|
|
resp, err = c.publisherClient.GetTopic(ctx, req, settings.GRPC...)
|
||
|
|
return err
|
||
|
|
}, opts...)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
return resp, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// ListTopics lists matching topics.
|
||
|
|
func (c *PublisherClient) ListTopics(ctx context.Context, req *pubsubpb.ListTopicsRequest, opts ...gax.CallOption) *TopicIterator {
|
||
|
|
ctx = insertMetadata(ctx, c.xGoogMetadata)
|
||
|
|
opts = append(c.CallOptions.ListTopics[0:len(c.CallOptions.ListTopics):len(c.CallOptions.ListTopics)], opts...)
|
||
|
|
it := &TopicIterator{}
|
||
|
|
it.InternalFetch = func(pageSize int, pageToken string) ([]*pubsubpb.Topic, string, error) {
|
||
|
|
var resp *pubsubpb.ListTopicsResponse
|
||
|
|
req.PageToken = pageToken
|
||
|
|
if pageSize > math.MaxInt32 {
|
||
|
|
req.PageSize = math.MaxInt32
|
||
|
|
} else {
|
||
|
|
req.PageSize = int32(pageSize)
|
||
|
|
}
|
||
|
|
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
|
||
|
|
var err error
|
||
|
|
resp, err = c.publisherClient.ListTopics(ctx, req, settings.GRPC...)
|
||
|
|
return err
|
||
|
|
}, opts...)
|
||
|
|
if err != nil {
|
||
|
|
return nil, "", err
|
||
|
|
}
|
||
|
|
return resp.Topics, resp.NextPageToken, nil
|
||
|
|
}
|
||
|
|
fetch := func(pageSize int, pageToken string) (string, error) {
|
||
|
|
items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
|
||
|
|
if err != nil {
|
||
|
|
return "", err
|
||
|
|
}
|
||
|
|
it.items = append(it.items, items...)
|
||
|
|
return nextPageToken, nil
|
||
|
|
}
|
||
|
|
it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
|
||
|
|
return it
|
||
|
|
}
|
||
|
|
|
||
|
|
// ListTopicSubscriptions lists the name of the subscriptions for this topic.
|
||
|
|
func (c *PublisherClient) ListTopicSubscriptions(ctx context.Context, req *pubsubpb.ListTopicSubscriptionsRequest, opts ...gax.CallOption) *StringIterator {
|
||
|
|
ctx = insertMetadata(ctx, c.xGoogMetadata)
|
||
|
|
opts = append(c.CallOptions.ListTopicSubscriptions[0:len(c.CallOptions.ListTopicSubscriptions):len(c.CallOptions.ListTopicSubscriptions)], opts...)
|
||
|
|
it := &StringIterator{}
|
||
|
|
it.InternalFetch = func(pageSize int, pageToken string) ([]string, string, error) {
|
||
|
|
var resp *pubsubpb.ListTopicSubscriptionsResponse
|
||
|
|
req.PageToken = pageToken
|
||
|
|
if pageSize > math.MaxInt32 {
|
||
|
|
req.PageSize = math.MaxInt32
|
||
|
|
} else {
|
||
|
|
req.PageSize = int32(pageSize)
|
||
|
|
}
|
||
|
|
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
|
||
|
|
var err error
|
||
|
|
resp, err = c.publisherClient.ListTopicSubscriptions(ctx, req, settings.GRPC...)
|
||
|
|
return err
|
||
|
|
}, opts...)
|
||
|
|
if err != nil {
|
||
|
|
return nil, "", err
|
||
|
|
}
|
||
|
|
return resp.Subscriptions, resp.NextPageToken, nil
|
||
|
|
}
|
||
|
|
fetch := func(pageSize int, pageToken string) (string, error) {
|
||
|
|
items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
|
||
|
|
if err != nil {
|
||
|
|
return "", err
|
||
|
|
}
|
||
|
|
it.items = append(it.items, items...)
|
||
|
|
return nextPageToken, nil
|
||
|
|
}
|
||
|
|
it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
|
||
|
|
return it
|
||
|
|
}
|
||
|
|
|
||
|
|
// DeleteTopic deletes the topic with the given name. Returns NOT_FOUND if the topic
|
||
|
|
// does not exist. After a topic is deleted, a new topic may be created with
|
||
|
|
// the same name; this is an entirely new topic with none of the old
|
||
|
|
// configuration or subscriptions. Existing subscriptions to this topic are
|
||
|
|
// not deleted, but their topic field is set to _deleted-topic_.
|
||
|
|
func (c *PublisherClient) DeleteTopic(ctx context.Context, req *pubsubpb.DeleteTopicRequest, opts ...gax.CallOption) error {
|
||
|
|
ctx = insertMetadata(ctx, c.xGoogMetadata)
|
||
|
|
opts = append(c.CallOptions.DeleteTopic[0:len(c.CallOptions.DeleteTopic):len(c.CallOptions.DeleteTopic)], opts...)
|
||
|
|
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
|
||
|
|
var err error
|
||
|
|
_, err = c.publisherClient.DeleteTopic(ctx, req, settings.GRPC...)
|
||
|
|
return err
|
||
|
|
}, opts...)
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
// StringIterator manages a stream of string.
|
||
|
|
type StringIterator struct {
|
||
|
|
items []string
|
||
|
|
pageInfo *iterator.PageInfo
|
||
|
|
nextFunc func() error
|
||
|
|
|
||
|
|
// InternalFetch is for use by the Google Cloud Libraries only.
|
||
|
|
// It is not part of the stable interface of this package.
|
||
|
|
//
|
||
|
|
// InternalFetch returns results from a single call to the underlying RPC.
|
||
|
|
// The number of results is no greater than pageSize.
|
||
|
|
// If there are no more results, nextPageToken is empty and err is nil.
|
||
|
|
InternalFetch func(pageSize int, pageToken string) (results []string, nextPageToken string, err error)
|
||
|
|
}
|
||
|
|
|
||
|
|
// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
|
||
|
|
func (it *StringIterator) PageInfo() *iterator.PageInfo {
|
||
|
|
return it.pageInfo
|
||
|
|
}
|
||
|
|
|
||
|
|
// Next returns the next result. Its second return value is iterator.Done if there are no more
|
||
|
|
// results. Once Next returns Done, all subsequent calls will return Done.
|
||
|
|
func (it *StringIterator) Next() (string, error) {
|
||
|
|
var item string
|
||
|
|
if err := it.nextFunc(); err != nil {
|
||
|
|
return item, err
|
||
|
|
}
|
||
|
|
item = it.items[0]
|
||
|
|
it.items = it.items[1:]
|
||
|
|
return item, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (it *StringIterator) bufLen() int {
|
||
|
|
return len(it.items)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (it *StringIterator) takeBuf() interface{} {
|
||
|
|
b := it.items
|
||
|
|
it.items = nil
|
||
|
|
return b
|
||
|
|
}
|
||
|
|
|
||
|
|
// TopicIterator manages a stream of *pubsubpb.Topic.
|
||
|
|
type TopicIterator struct {
|
||
|
|
items []*pubsubpb.Topic
|
||
|
|
pageInfo *iterator.PageInfo
|
||
|
|
nextFunc func() error
|
||
|
|
|
||
|
|
// InternalFetch is for use by the Google Cloud Libraries only.
|
||
|
|
// It is not part of the stable interface of this package.
|
||
|
|
//
|
||
|
|
// InternalFetch returns results from a single call to the underlying RPC.
|
||
|
|
// The number of results is no greater than pageSize.
|
||
|
|
// If there are no more results, nextPageToken is empty and err is nil.
|
||
|
|
InternalFetch func(pageSize int, pageToken string) (results []*pubsubpb.Topic, nextPageToken string, err error)
|
||
|
|
}
|
||
|
|
|
||
|
|
// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
|
||
|
|
func (it *TopicIterator) PageInfo() *iterator.PageInfo {
|
||
|
|
return it.pageInfo
|
||
|
|
}
|
||
|
|
|
||
|
|
// Next returns the next result. Its second return value is iterator.Done if there are no more
|
||
|
|
// results. Once Next returns Done, all subsequent calls will return Done.
|
||
|
|
func (it *TopicIterator) Next() (*pubsubpb.Topic, error) {
|
||
|
|
var item *pubsubpb.Topic
|
||
|
|
if err := it.nextFunc(); err != nil {
|
||
|
|
return item, err
|
||
|
|
}
|
||
|
|
item = it.items[0]
|
||
|
|
it.items = it.items[1:]
|
||
|
|
return item, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (it *TopicIterator) bufLen() int {
|
||
|
|
return len(it.items)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (it *TopicIterator) takeBuf() interface{} {
|
||
|
|
b := it.items
|
||
|
|
it.items = nil
|
||
|
|
return b
|
||
|
|
}
|