| // Copyright 2020 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. |
| |
| // Code generated by protoc-gen-go_gapic. DO NOT EDIT. |
| |
| package pubsublite |
| |
| import ( |
| "context" |
| "math" |
| |
| gax "github.com/googleapis/gax-go/v2" |
| "google.golang.org/api/option" |
| "google.golang.org/api/option/internaloption" |
| gtransport "google.golang.org/api/transport/grpc" |
| pubsublitepb "google.golang.org/genproto/googleapis/cloud/pubsublite/v1" |
| "google.golang.org/grpc" |
| "google.golang.org/grpc/metadata" |
| ) |
| |
| var newPublisherClientHook clientHook |
| |
| // PublisherCallOptions contains the retry settings for each method of PublisherClient. |
| type PublisherCallOptions struct { |
| Publish []gax.CallOption |
| } |
| |
| func defaultPublisherClientOptions() []option.ClientOption { |
| return []option.ClientOption{ |
| internaloption.WithDefaultEndpoint("pubsublite.googleapis.com:443"), |
| internaloption.WithDefaultMTLSEndpoint("pubsublite.mtls.googleapis.com:443"), |
| option.WithGRPCDialOption(grpc.WithDisableServiceConfig()), |
| option.WithScopes(DefaultAuthScopes()...), |
| option.WithGRPCDialOption(grpc.WithDefaultCallOptions( |
| grpc.MaxCallRecvMsgSize(math.MaxInt32))), |
| } |
| } |
| |
| func defaultPublisherCallOptions() *PublisherCallOptions { |
| return &PublisherCallOptions{ |
| Publish: []gax.CallOption{}, |
| } |
| } |
| |
| // PublisherClient is a client for interacting with . |
| // |
| // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls. |
| type PublisherClient struct { |
| // Connection pool of gRPC connections to the service. |
| connPool gtransport.ConnPool |
| |
| // flag to opt out of default deadlines via GOOGLE_API_GO_EXPERIMENTAL_DISABLE_DEFAULT_DEADLINE |
| disableDeadlines bool |
| |
| // The gRPC API client. |
| publisherClient pubsublitepb.PublisherServiceClient |
| |
| // 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 service client. |
| // |
| // The service that a publisher client application uses to publish messages to |
| // topics. Published messages are retained by the service for the duration of |
| // the retention period configured for the respective topic, and are delivered |
| // to subscriber clients upon request (via the SubscriberService). |
| func NewPublisherClient(ctx context.Context, opts ...option.ClientOption) (*PublisherClient, error) { |
| clientOpts := defaultPublisherClientOptions() |
| |
| if newPublisherClientHook != nil { |
| hookOpts, err := newPublisherClientHook(ctx, clientHookParams{}) |
| if err != nil { |
| return nil, err |
| } |
| clientOpts = append(clientOpts, hookOpts...) |
| } |
| |
| disableDeadlines, err := checkDisableDeadlines() |
| if err != nil { |
| return nil, err |
| } |
| |
| connPool, err := gtransport.DialPool(ctx, append(clientOpts, opts...)...) |
| if err != nil { |
| return nil, err |
| } |
| c := &PublisherClient{ |
| connPool: connPool, |
| disableDeadlines: disableDeadlines, |
| CallOptions: defaultPublisherCallOptions(), |
| |
| publisherClient: pubsublitepb.NewPublisherServiceClient(connPool), |
| } |
| c.setGoogleClientInfo() |
| |
| return c, nil |
| } |
| |
| // Connection returns a connection to the API service. |
| // |
| // Deprecated. |
| func (c *PublisherClient) Connection() *grpc.ClientConn { |
| return c.connPool.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.connPool.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", versionGo()}, keyval...) |
| kv = append(kv, "gapic", versionClient, "gax", gax.Version, "grpc", grpc.Version) |
| c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...)) |
| } |
| |
| // Publish establishes a stream with the server for publishing messages. Once the |
| // stream is initialized, the client publishes messages by sending publish |
| // requests on the stream. The server responds with a PublishResponse for each |
| // PublishRequest sent by the client, in the same order that the requests |
| // were sent. Note that multiple PublishRequests can be in flight |
| // simultaneously, but they will be processed by the server in the order that |
| // they are sent by the client on a given stream. |
| func (c *PublisherClient) Publish(ctx context.Context, opts ...gax.CallOption) (pubsublitepb.PublisherService_PublishClient, error) { |
| ctx = insertMetadata(ctx, c.xGoogMetadata) |
| opts = append(c.CallOptions.Publish[0:len(c.CallOptions.Publish):len(c.CallOptions.Publish)], opts...) |
| var resp pubsublitepb.PublisherService_PublishClient |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.publisherClient.Publish(ctx, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return resp, nil |
| } |