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partition_assignment_client.go
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/
partition_assignment_client.go
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// Copyright 2021 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 newPartitionAssignmentClientHook clientHook
// PartitionAssignmentCallOptions contains the retry settings for each method of PartitionAssignmentClient.
type PartitionAssignmentCallOptions struct {
AssignPartitions []gax.CallOption
}
func defaultPartitionAssignmentGRPCClientOptions() []option.ClientOption {
return []option.ClientOption{
internaloption.WithDefaultEndpoint("pubsublite.googleapis.com:443"),
internaloption.WithDefaultMTLSEndpoint("pubsublite.mtls.googleapis.com:443"),
internaloption.WithDefaultAudience("https://pubsublite.googleapis.com/"),
internaloption.WithDefaultScopes(DefaultAuthScopes()...),
option.WithGRPCDialOption(grpc.WithDisableServiceConfig()),
option.WithGRPCDialOption(grpc.WithDefaultCallOptions(
grpc.MaxCallRecvMsgSize(math.MaxInt32))),
}
}
func defaultPartitionAssignmentCallOptions() *PartitionAssignmentCallOptions {
return &PartitionAssignmentCallOptions{
AssignPartitions: []gax.CallOption{},
}
}
// internalPartitionAssignmentClient is an interface that defines the methods availaible from Pub/Sub Lite API.
type internalPartitionAssignmentClient interface {
Close() error
setGoogleClientInfo(...string)
Connection() *grpc.ClientConn
AssignPartitions(context.Context, ...gax.CallOption) (pubsublitepb.PartitionAssignmentService_AssignPartitionsClient, error)
}
// PartitionAssignmentClient is a client for interacting with Pub/Sub Lite API.
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
//
// The service that a subscriber client application uses to determine which
// partitions it should connect to.
type PartitionAssignmentClient struct {
// The internal transport-dependent client.
internalClient internalPartitionAssignmentClient
// The call options for this service.
CallOptions *PartitionAssignmentCallOptions
}
// Wrapper methods routed to the internal client.
// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *PartitionAssignmentClient) Close() error {
return c.internalClient.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 *PartitionAssignmentClient) setGoogleClientInfo(keyval ...string) {
c.internalClient.setGoogleClientInfo(keyval...)
}
// Connection returns a connection to the API service.
//
// Deprecated.
func (c *PartitionAssignmentClient) Connection() *grpc.ClientConn {
return c.internalClient.Connection()
}
// AssignPartitions assign partitions for this client to handle for the specified subscription.
//
// The client must send an InitialPartitionAssignmentRequest first.
// The server will then send at most one unacknowledged PartitionAssignment
// outstanding on the stream at a time.
// The client should send a PartitionAssignmentAck after updating the
// partitions it is connected to to reflect the new assignment.
func (c *PartitionAssignmentClient) AssignPartitions(ctx context.Context, opts ...gax.CallOption) (pubsublitepb.PartitionAssignmentService_AssignPartitionsClient, error) {
return c.internalClient.AssignPartitions(ctx, opts...)
}
// partitionAssignmentGRPCClient is a client for interacting with Pub/Sub Lite API over gRPC transport.
//
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type partitionAssignmentGRPCClient 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
// Points back to the CallOptions field of the containing PartitionAssignmentClient
CallOptions **PartitionAssignmentCallOptions
// The gRPC API client.
partitionAssignmentClient pubsublitepb.PartitionAssignmentServiceClient
// The x-goog-* metadata to be sent with each request.
xGoogMetadata metadata.MD
}
// NewPartitionAssignmentClient creates a new partition assignment service client based on gRPC.
// The returned client must be Closed when it is done being used to clean up its underlying connections.
//
// The service that a subscriber client application uses to determine which
// partitions it should connect to.
func NewPartitionAssignmentClient(ctx context.Context, opts ...option.ClientOption) (*PartitionAssignmentClient, error) {
clientOpts := defaultPartitionAssignmentGRPCClientOptions()
if newPartitionAssignmentClientHook != nil {
hookOpts, err := newPartitionAssignmentClientHook(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
}
client := PartitionAssignmentClient{CallOptions: defaultPartitionAssignmentCallOptions()}
c := &partitionAssignmentGRPCClient{
connPool: connPool,
disableDeadlines: disableDeadlines,
partitionAssignmentClient: pubsublitepb.NewPartitionAssignmentServiceClient(connPool),
CallOptions: &client.CallOptions,
}
c.setGoogleClientInfo()
client.internalClient = c
return &client, nil
}
// Connection returns a connection to the API service.
//
// Deprecated.
func (c *partitionAssignmentGRPCClient) Connection() *grpc.ClientConn {
return c.connPool.Conn()
}
// 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 *partitionAssignmentGRPCClient) 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...))
}
// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *partitionAssignmentGRPCClient) Close() error {
return c.connPool.Close()
}
func (c *partitionAssignmentGRPCClient) AssignPartitions(ctx context.Context, opts ...gax.CallOption) (pubsublitepb.PartitionAssignmentService_AssignPartitionsClient, error) {
ctx = insertMetadata(ctx, c.xGoogMetadata)
var resp pubsublitepb.PartitionAssignmentService_AssignPartitionsClient
opts = append((*c.CallOptions).AssignPartitions[0:len((*c.CallOptions).AssignPartitions):len((*c.CallOptions).AssignPartitions)], opts...)
err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
var err error
resp, err = c.partitionAssignmentClient.AssignPartitions(ctx, settings.GRPC...)
return err
}, opts...)
if err != nil {
return nil, err
}
return resp, nil
}