dataflow/apiv1beta3/messages_v1_beta3_client.go - gocloud - Git at Google

 // Copyright 2022 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 dataflow

 import (
 	"context"
 	"fmt"
 	"io/ioutil"
 	"math"
 	"net/http"
 	"net/url"

 	dataflowpb "cloud.google.com/go/dataflow/apiv1beta3/dataflowpb"
 	gax "github.com/googleapis/gax-go/v2"
 	"google.golang.org/api/googleapi"
 	"google.golang.org/api/iterator"
 	"google.golang.org/api/option"
 	"google.golang.org/api/option/internaloption"
 	gtransport "google.golang.org/api/transport/grpc"
 	httptransport "google.golang.org/api/transport/http"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/metadata"
 	"google.golang.org/protobuf/encoding/protojson"
 	"google.golang.org/protobuf/proto"
 )

 var newMessagesV1Beta3ClientHook clientHook

 // MessagesV1Beta3CallOptions contains the retry settings for each method of MessagesV1Beta3Client.
 type MessagesV1Beta3CallOptions struct {
 	ListJobMessages []gax.CallOption
 }

 func defaultMessagesV1Beta3GRPCClientOptions() []option.ClientOption {
 	return []option.ClientOption{
 		internaloption.WithDefaultEndpoint("dataflow.googleapis.com:443"),
 		internaloption.WithDefaultMTLSEndpoint("dataflow.mtls.googleapis.com:443"),
 		internaloption.WithDefaultAudience("https://dataflow.googleapis.com/"),
 		internaloption.WithDefaultScopes(DefaultAuthScopes()...),
 		internaloption.EnableJwtWithScope(),
 		option.WithGRPCDialOption(grpc.WithDefaultCallOptions(
 			grpc.MaxCallRecvMsgSize(math.MaxInt32))),
 	}
 }

 func defaultMessagesV1Beta3CallOptions() *MessagesV1Beta3CallOptions {
 	return &MessagesV1Beta3CallOptions{
 		ListJobMessages: []gax.CallOption{},
 	}
 }

 func defaultMessagesV1Beta3RESTCallOptions() *MessagesV1Beta3CallOptions {
 	return &MessagesV1Beta3CallOptions{
 		ListJobMessages: []gax.CallOption{},
 	}
 }

 // internalMessagesV1Beta3Client is an interface that defines the methods available from Dataflow API.
 type internalMessagesV1Beta3Client interface {
 	Close() error
 	setGoogleClientInfo(...string)
 	Connection() *grpc.ClientConn
 	ListJobMessages(context.Context, *dataflowpb.ListJobMessagesRequest, ...gax.CallOption) *JobMessageIterator
 }

 // MessagesV1Beta3Client is a client for interacting with Dataflow API.
 // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
 //
 // The Dataflow Messages API is used for monitoring the progress of
 // Dataflow jobs.
 type MessagesV1Beta3Client struct {
 	// The internal transport-dependent client.
 	internalClient internalMessagesV1Beta3Client

 	// The call options for this service.
 	CallOptions *MessagesV1Beta3CallOptions
 }

 // 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 *MessagesV1Beta3Client) 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 *MessagesV1Beta3Client) setGoogleClientInfo(keyval ...string) {
 	c.internalClient.setGoogleClientInfo(keyval...)
 }

 // Connection returns a connection to the API service.
 //
 // Deprecated: Connections are now pooled so this method does not always
 // return the same resource.
 func (c *MessagesV1Beta3Client) Connection() *grpc.ClientConn {
 	return c.internalClient.Connection()
 }

 // ListJobMessages request the job status.
 //
 // To request the status of a job, we recommend using
 // projects.locations.jobs.messages.list with a [regional endpoint]
 // (https://cloud.google.com/dataflow/docs/concepts/regional-endpoints (at https://cloud.google.com/dataflow/docs/concepts/regional-endpoints)). Using
 // projects.jobs.messages.list is not recommended, as you can only request
 // the status of jobs that are running in us-central1.
 func (c *MessagesV1Beta3Client) ListJobMessages(ctx context.Context, req *dataflowpb.ListJobMessagesRequest, opts ...gax.CallOption) *JobMessageIterator {
 	return c.internalClient.ListJobMessages(ctx, req, opts...)
 }

 // messagesV1Beta3GRPCClient is a client for interacting with Dataflow API over gRPC transport.
 //
 // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
 type messagesV1Beta3GRPCClient 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 MessagesV1Beta3Client
 	CallOptions **MessagesV1Beta3CallOptions

 	// The gRPC API client.
 	messagesV1Beta3Client dataflowpb.MessagesV1Beta3Client

 	// The x-goog-* metadata to be sent with each request.
 	xGoogMetadata metadata.MD
 }

 // NewMessagesV1Beta3Client creates a new messages v1 beta3 client based on gRPC.
 // The returned client must be Closed when it is done being used to clean up its underlying connections.
 //
 // The Dataflow Messages API is used for monitoring the progress of
 // Dataflow jobs.
 func NewMessagesV1Beta3Client(ctx context.Context, opts ...option.ClientOption) (*MessagesV1Beta3Client, error) {
 	clientOpts := defaultMessagesV1Beta3GRPCClientOptions()
 	if newMessagesV1Beta3ClientHook != nil {
 		hookOpts, err := newMessagesV1Beta3ClientHook(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 := MessagesV1Beta3Client{CallOptions: defaultMessagesV1Beta3CallOptions()}

 	c := &messagesV1Beta3GRPCClient{
 		connPool:              connPool,
 		disableDeadlines:      disableDeadlines,
 		messagesV1Beta3Client: dataflowpb.NewMessagesV1Beta3Client(connPool),
 		CallOptions:           &client.CallOptions,
 	}
 	c.setGoogleClientInfo()

 	client.internalClient = c

 	return &client, nil
 }

 // Connection returns a connection to the API service.
 //
 // Deprecated: Connections are now pooled so this method does not always
 // return the same resource.
 func (c *messagesV1Beta3GRPCClient) 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 *messagesV1Beta3GRPCClient) setGoogleClientInfo(keyval ...string) {
 	kv := append([]string{"gl-go", versionGo()}, keyval...)
 	kv = append(kv, "gapic", getVersionClient(), "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 *messagesV1Beta3GRPCClient) Close() error {
 	return c.connPool.Close()
 }

 // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
 type messagesV1Beta3RESTClient struct {
 	// The http endpoint to connect to.
 	endpoint string

 	// The http client.
 	httpClient *http.Client

 	// The x-goog-* metadata to be sent with each request.
 	xGoogMetadata metadata.MD

 	// Points back to the CallOptions field of the containing MessagesV1Beta3Client
 	CallOptions **MessagesV1Beta3CallOptions
 }

 // NewMessagesV1Beta3RESTClient creates a new messages v1 beta3 rest client.
 //
 // The Dataflow Messages API is used for monitoring the progress of
 // Dataflow jobs.
 func NewMessagesV1Beta3RESTClient(ctx context.Context, opts ...option.ClientOption) (*MessagesV1Beta3Client, error) {
 	clientOpts := append(defaultMessagesV1Beta3RESTClientOptions(), opts...)
 	httpClient, endpoint, err := httptransport.NewClient(ctx, clientOpts...)
 	if err != nil {
 		return nil, err
 	}

 	callOpts := defaultMessagesV1Beta3RESTCallOptions()
 	c := &messagesV1Beta3RESTClient{
 		endpoint:    endpoint,
 		httpClient:  httpClient,
 		CallOptions: &callOpts,
 	}
 	c.setGoogleClientInfo()

 	return &MessagesV1Beta3Client{internalClient: c, CallOptions: callOpts}, nil
 }

 func defaultMessagesV1Beta3RESTClientOptions() []option.ClientOption {
 	return []option.ClientOption{
 		internaloption.WithDefaultEndpoint("https://dataflow.googleapis.com"),
 		internaloption.WithDefaultMTLSEndpoint("https://dataflow.mtls.googleapis.com"),
 		internaloption.WithDefaultAudience("https://dataflow.googleapis.com/"),
 		internaloption.WithDefaultScopes(DefaultAuthScopes()...),
 	}
 }

 // 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 *messagesV1Beta3RESTClient) setGoogleClientInfo(keyval ...string) {
 	kv := append([]string{"gl-go", versionGo()}, keyval...)
 	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "rest", "UNKNOWN")
 	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 *messagesV1Beta3RESTClient) Close() error {
 	// Replace httpClient with nil to force cleanup.
 	c.httpClient = nil
 	return nil
 }

 // Connection returns a connection to the API service.
 //
 // Deprecated: This method always returns nil.
 func (c *messagesV1Beta3RESTClient) Connection() *grpc.ClientConn {
 	return nil
 }
 func (c *messagesV1Beta3GRPCClient) ListJobMessages(ctx context.Context, req *dataflowpb.ListJobMessagesRequest, opts ...gax.CallOption) *JobMessageIterator {
 	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v&%s=%v&%s=%v", "project_id", url.QueryEscape(req.GetProjectId()), "location", url.QueryEscape(req.GetLocation()), "job_id", url.QueryEscape(req.GetJobId())))

 	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
 	opts = append((*c.CallOptions).ListJobMessages[0:len((*c.CallOptions).ListJobMessages):len((*c.CallOptions).ListJobMessages)], opts...)
 	it := &JobMessageIterator{}
 	req = proto.Clone(req).(*dataflowpb.ListJobMessagesRequest)
 	it.InternalFetch = func(pageSize int, pageToken string) ([]*dataflowpb.JobMessage, string, error) {
 		resp := &dataflowpb.ListJobMessagesResponse{}
 		if pageToken != "" {
 			req.PageToken = pageToken
 		}
 		if pageSize > math.MaxInt32 {
 			req.PageSize = math.MaxInt32
 		} else if pageSize != 0 {
 			req.PageSize = int32(pageSize)
 		}
 		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
 			var err error
 			resp, err = c.messagesV1Beta3Client.ListJobMessages(ctx, req, settings.GRPC...)
 			return err
 		}, opts...)
 		if err != nil {
 			return nil, "", err
 		}

 		it.Response = resp
 		return resp.GetJobMessages(), resp.GetNextPageToken(), 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)
 	it.pageInfo.MaxSize = int(req.GetPageSize())
 	it.pageInfo.Token = req.GetPageToken()

 	return it
 }

 // ListJobMessages request the job status.
 //
 // To request the status of a job, we recommend using
 // projects.locations.jobs.messages.list with a [regional endpoint]
 // (https://cloud.google.com/dataflow/docs/concepts/regional-endpoints (at https://cloud.google.com/dataflow/docs/concepts/regional-endpoints)). Using
 // projects.jobs.messages.list is not recommended, as you can only request
 // the status of jobs that are running in us-central1.
 func (c *messagesV1Beta3RESTClient) ListJobMessages(ctx context.Context, req *dataflowpb.ListJobMessagesRequest, opts ...gax.CallOption) *JobMessageIterator {
 	it := &JobMessageIterator{}
 	req = proto.Clone(req).(*dataflowpb.ListJobMessagesRequest)
 	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
 	it.InternalFetch = func(pageSize int, pageToken string) ([]*dataflowpb.JobMessage, string, error) {
 		resp := &dataflowpb.ListJobMessagesResponse{}
 		if pageToken != "" {
 			req.PageToken = pageToken
 		}
 		if pageSize > math.MaxInt32 {
 			req.PageSize = math.MaxInt32
 		} else if pageSize != 0 {
 			req.PageSize = int32(pageSize)
 		}
 		baseUrl, err := url.Parse(c.endpoint)
 		if err != nil {
 			return nil, "", err
 		}
 		baseUrl.Path += fmt.Sprintf("/v1b3/projects/%v/locations/%v/jobs/%v/messages", req.GetProjectId(), req.GetLocation(), req.GetJobId())

 		params := url.Values{}
 		if req.GetEndTime() != nil {
 			endTime, err := protojson.Marshal(req.GetEndTime())
 			if err != nil {
 				return nil, "", err
 			}
 			params.Add("endTime", string(endTime))
 		}
 		if req.GetMinimumImportance() != 0 {
 			params.Add("minimumImportance", fmt.Sprintf("%v", req.GetMinimumImportance()))
 		}
 		if req.GetPageSize() != 0 {
 			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
 		}
 		if req.GetPageToken() != "" {
 			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
 		}
 		if req.GetStartTime() != nil {
 			startTime, err := protojson.Marshal(req.GetStartTime())
 			if err != nil {
 				return nil, "", err
 			}
 			params.Add("startTime", string(startTime))
 		}

 		baseUrl.RawQuery = params.Encode()

 		// Build HTTP headers from client and context metadata.
 		headers := buildHeaders(ctx, c.xGoogMetadata, metadata.Pairs("Content-Type", "application/json"))
 		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
 			if settings.Path != "" {
 				baseUrl.Path = settings.Path
 			}
 			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
 			if err != nil {
 				return err
 			}
 			httpReq.Header = headers

 			httpRsp, err := c.httpClient.Do(httpReq)
 			if err != nil {
 				return err
 			}
 			defer httpRsp.Body.Close()

 			if err = googleapi.CheckResponse(httpRsp); err != nil {
 				return err
 			}

 			buf, err := ioutil.ReadAll(httpRsp.Body)
 			if err != nil {
 				return err
 			}

 			if err := unm.Unmarshal(buf, resp); err != nil {
 				return maybeUnknownEnum(err)
 			}

 			return nil
 		}, opts...)
 		if e != nil {
 			return nil, "", e
 		}
 		it.Response = resp
 		return resp.GetJobMessages(), resp.GetNextPageToken(), 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)
 	it.pageInfo.MaxSize = int(req.GetPageSize())
 	it.pageInfo.Token = req.GetPageToken()

 	return it
 }

 // JobMessageIterator manages a stream of *dataflowpb.JobMessage.
 type JobMessageIterator struct {
 	items    []*dataflowpb.JobMessage
 	pageInfo *iterator.PageInfo
 	nextFunc func() error

 	// Response is the raw response for the current page.
 	// It must be cast to the RPC response type.
 	// Calling Next() or InternalFetch() updates this value.
 	Response interface{}

 	// 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 []*dataflowpb.JobMessage, nextPageToken string, err error)
 }

 // PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
 func (it *JobMessageIterator) 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 *JobMessageIterator) Next() (*dataflowpb.JobMessage, error) {
 	var item *dataflowpb.JobMessage
 	if err := it.nextFunc(); err != nil {
 		return item, err
 	}
 	item = it.items[0]
 	it.items = it.items[1:]
 	return item, nil
 }

 func (it *JobMessageIterator) bufLen() int {
 	return len(it.items)
 }

 func (it *JobMessageIterator) takeBuf() interface{} {
 	b := it.items
 	it.items = nil
 	return b
 }
	// Copyright 2022 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 dataflow

	import (
	"context"
	"fmt"
	"io/ioutil"
	"math"
	"net/http"
	"net/url"

	dataflowpb "cloud.google.com/go/dataflow/apiv1beta3/dataflowpb"
	gax "github.com/googleapis/gax-go/v2"
	"google.golang.org/api/googleapi"
	"google.golang.org/api/iterator"
	"google.golang.org/api/option"
	"google.golang.org/api/option/internaloption"
	gtransport "google.golang.org/api/transport/grpc"
	httptransport "google.golang.org/api/transport/http"
	"google.golang.org/grpc"
	"google.golang.org/grpc/metadata"
	"google.golang.org/protobuf/encoding/protojson"
	"google.golang.org/protobuf/proto"
	)

	var newMessagesV1Beta3ClientHook clientHook

	// MessagesV1Beta3CallOptions contains the retry settings for each method of MessagesV1Beta3Client.
	type MessagesV1Beta3CallOptions struct {
	ListJobMessages []gax.CallOption
	}

	func defaultMessagesV1Beta3GRPCClientOptions() []option.ClientOption {
	return []option.ClientOption{
	internaloption.WithDefaultEndpoint("dataflow.googleapis.com:443"),
	internaloption.WithDefaultMTLSEndpoint("dataflow.mtls.googleapis.com:443"),
	internaloption.WithDefaultAudience("https://dataflow.googleapis.com/"),
	internaloption.WithDefaultScopes(DefaultAuthScopes()...),
	internaloption.EnableJwtWithScope(),
	option.WithGRPCDialOption(grpc.WithDefaultCallOptions(
	grpc.MaxCallRecvMsgSize(math.MaxInt32))),
	}
	}

	func defaultMessagesV1Beta3CallOptions() *MessagesV1Beta3CallOptions {
	return &MessagesV1Beta3CallOptions{
	ListJobMessages: []gax.CallOption{},
	}
	}

	func defaultMessagesV1Beta3RESTCallOptions() *MessagesV1Beta3CallOptions {
	return &MessagesV1Beta3CallOptions{
	ListJobMessages: []gax.CallOption{},
	}
	}

	// internalMessagesV1Beta3Client is an interface that defines the methods available from Dataflow API.
	type internalMessagesV1Beta3Client interface {
	Close() error
	setGoogleClientInfo(...string)
	Connection() *grpc.ClientConn
	ListJobMessages(context.Context, dataflowpb.ListJobMessagesRequest, ...gax.CallOption) JobMessageIterator
	}

	// MessagesV1Beta3Client is a client for interacting with Dataflow API.
	// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
	//
	// The Dataflow Messages API is used for monitoring the progress of
	// Dataflow jobs.
	type MessagesV1Beta3Client struct {
	// The internal transport-dependent client.
	internalClient internalMessagesV1Beta3Client

	// The call options for this service.
	CallOptions *MessagesV1Beta3CallOptions
	}

	// 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 *MessagesV1Beta3Client) 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 *MessagesV1Beta3Client) setGoogleClientInfo(keyval ...string) {
	c.internalClient.setGoogleClientInfo(keyval...)
	}

	// Connection returns a connection to the API service.
	//
	// Deprecated: Connections are now pooled so this method does not always
	// return the same resource.
	func (c MessagesV1Beta3Client) Connection() grpc.ClientConn {
	return c.internalClient.Connection()
	}

	// ListJobMessages request the job status.
	//
	// To request the status of a job, we recommend using
	// projects.locations.jobs.messages.list with a [regional endpoint]
	// (https://cloud.google.com/dataflow/docs/concepts/regional-endpoints (at https://cloud.google.com/dataflow/docs/concepts/regional-endpoints)). Using
	// projects.jobs.messages.list is not recommended, as you can only request
	// the status of jobs that are running in us-central1.
	func (c MessagesV1Beta3Client) ListJobMessages(ctx context.Context, req dataflowpb.ListJobMessagesRequest, opts ...gax.CallOption) *JobMessageIterator {
	return c.internalClient.ListJobMessages(ctx, req, opts...)
	}

	// messagesV1Beta3GRPCClient is a client for interacting with Dataflow API over gRPC transport.
	//
	// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
	type messagesV1Beta3GRPCClient 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 MessagesV1Beta3Client
	CallOptions **MessagesV1Beta3CallOptions

	// The gRPC API client.
	messagesV1Beta3Client dataflowpb.MessagesV1Beta3Client

	// The x-goog-* metadata to be sent with each request.
	xGoogMetadata metadata.MD
	}

	// NewMessagesV1Beta3Client creates a new messages v1 beta3 client based on gRPC.
	// The returned client must be Closed when it is done being used to clean up its underlying connections.
	//
	// The Dataflow Messages API is used for monitoring the progress of
	// Dataflow jobs.
	func NewMessagesV1Beta3Client(ctx context.Context, opts ...option.ClientOption) (*MessagesV1Beta3Client, error) {
	clientOpts := defaultMessagesV1Beta3GRPCClientOptions()
	if newMessagesV1Beta3ClientHook != nil {
	hookOpts, err := newMessagesV1Beta3ClientHook(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 := MessagesV1Beta3Client{CallOptions: defaultMessagesV1Beta3CallOptions()}

	c := &messagesV1Beta3GRPCClient{
	connPool: connPool,
	disableDeadlines: disableDeadlines,
	messagesV1Beta3Client: dataflowpb.NewMessagesV1Beta3Client(connPool),
	CallOptions: &client.CallOptions,
	}
	c.setGoogleClientInfo()

	client.internalClient = c

	return &client, nil
	}

	// Connection returns a connection to the API service.
	//
	// Deprecated: Connections are now pooled so this method does not always
	// return the same resource.
	func (c messagesV1Beta3GRPCClient) 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 *messagesV1Beta3GRPCClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", versionGo()}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "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 *messagesV1Beta3GRPCClient) Close() error {
	return c.connPool.Close()
	}

	// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
	type messagesV1Beta3RESTClient struct {
	// The http endpoint to connect to.
	endpoint string

	// The http client.
	httpClient *http.Client

	// The x-goog-* metadata to be sent with each request.
	xGoogMetadata metadata.MD

	// Points back to the CallOptions field of the containing MessagesV1Beta3Client
	CallOptions **MessagesV1Beta3CallOptions
	}

	// NewMessagesV1Beta3RESTClient creates a new messages v1 beta3 rest client.
	//
	// The Dataflow Messages API is used for monitoring the progress of
	// Dataflow jobs.
	func NewMessagesV1Beta3RESTClient(ctx context.Context, opts ...option.ClientOption) (*MessagesV1Beta3Client, error) {
	clientOpts := append(defaultMessagesV1Beta3RESTClientOptions(), opts...)
	httpClient, endpoint, err := httptransport.NewClient(ctx, clientOpts...)
	if err != nil {
	return nil, err
	}

	callOpts := defaultMessagesV1Beta3RESTCallOptions()
	c := &messagesV1Beta3RESTClient{
	endpoint: endpoint,
	httpClient: httpClient,
	CallOptions: &callOpts,
	}
	c.setGoogleClientInfo()

	return &MessagesV1Beta3Client{internalClient: c, CallOptions: callOpts}, nil
	}

	func defaultMessagesV1Beta3RESTClientOptions() []option.ClientOption {
	return []option.ClientOption{
	internaloption.WithDefaultEndpoint("https://dataflow.googleapis.com"),
	internaloption.WithDefaultMTLSEndpoint("https://dataflow.mtls.googleapis.com"),
	internaloption.WithDefaultAudience("https://dataflow.googleapis.com/"),
	internaloption.WithDefaultScopes(DefaultAuthScopes()...),
	}
	}

	// 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 *messagesV1Beta3RESTClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", versionGo()}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "rest", "UNKNOWN")
	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 *messagesV1Beta3RESTClient) Close() error {
	// Replace httpClient with nil to force cleanup.
	c.httpClient = nil
	return nil
	}

	// Connection returns a connection to the API service.
	//
	// Deprecated: This method always returns nil.
	func (c messagesV1Beta3RESTClient) Connection() grpc.ClientConn {
	return nil
	}
	func (c messagesV1Beta3GRPCClient) ListJobMessages(ctx context.Context, req dataflowpb.ListJobMessagesRequest, opts ...gax.CallOption) *JobMessageIterator {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v&%s=%v&%s=%v", "project_id", url.QueryEscape(req.GetProjectId()), "location", url.QueryEscape(req.GetLocation()), "job_id", url.QueryEscape(req.GetJobId())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((c.CallOptions).ListJobMessages[0:len((c.CallOptions).ListJobMessages):len((*c.CallOptions).ListJobMessages)], opts...)
	it := &JobMessageIterator{}
	req = proto.Clone(req).(*dataflowpb.ListJobMessagesRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*dataflowpb.JobMessage, string, error) {
	resp := &dataflowpb.ListJobMessagesResponse{}
	if pageToken != "" {
	req.PageToken = pageToken
	}
	if pageSize > math.MaxInt32 {
	req.PageSize = math.MaxInt32
	} else if pageSize != 0 {
	req.PageSize = int32(pageSize)
	}
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
	var err error
	resp, err = c.messagesV1Beta3Client.ListJobMessages(ctx, req, settings.GRPC...)
	return err
	}, opts...)
	if err != nil {
	return nil, "", err
	}

	it.Response = resp
	return resp.GetJobMessages(), resp.GetNextPageToken(), 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)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
	}

	// ListJobMessages request the job status.
	//
	// To request the status of a job, we recommend using
	// projects.locations.jobs.messages.list with a [regional endpoint]
	// (https://cloud.google.com/dataflow/docs/concepts/regional-endpoints (at https://cloud.google.com/dataflow/docs/concepts/regional-endpoints)). Using
	// projects.jobs.messages.list is not recommended, as you can only request
	// the status of jobs that are running in us-central1.
	func (c messagesV1Beta3RESTClient) ListJobMessages(ctx context.Context, req dataflowpb.ListJobMessagesRequest, opts ...gax.CallOption) *JobMessageIterator {
	it := &JobMessageIterator{}
	req = proto.Clone(req).(*dataflowpb.ListJobMessagesRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*dataflowpb.JobMessage, string, error) {
	resp := &dataflowpb.ListJobMessagesResponse{}
	if pageToken != "" {
	req.PageToken = pageToken
	}
	if pageSize > math.MaxInt32 {
	req.PageSize = math.MaxInt32
	} else if pageSize != 0 {
	req.PageSize = int32(pageSize)
	}
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
	return nil, "", err
	}
	baseUrl.Path += fmt.Sprintf("/v1b3/projects/%v/locations/%v/jobs/%v/messages", req.GetProjectId(), req.GetLocation(), req.GetJobId())

	params := url.Values{}
	if req.GetEndTime() != nil {
	endTime, err := protojson.Marshal(req.GetEndTime())
	if err != nil {
	return nil, "", err
	}
	params.Add("endTime", string(endTime))
	}
	if req.GetMinimumImportance() != 0 {
	params.Add("minimumImportance", fmt.Sprintf("%v", req.GetMinimumImportance()))
	}
	if req.GetPageSize() != 0 {
	params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
	}
	if req.GetPageToken() != "" {
	params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
	}
	if req.GetStartTime() != nil {
	startTime, err := protojson.Marshal(req.GetStartTime())
	if err != nil {
	return nil, "", err
	}
	params.Add("startTime", string(startTime))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	headers := buildHeaders(ctx, c.xGoogMetadata, metadata.Pairs("Content-Type", "application/json"))
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
	if settings.Path != "" {
	baseUrl.Path = settings.Path
	}
	httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
	if err != nil {
	return err
	}
	httpReq.Header = headers

	httpRsp, err := c.httpClient.Do(httpReq)
	if err != nil {
	return err
	}
	defer httpRsp.Body.Close()

	if err = googleapi.CheckResponse(httpRsp); err != nil {
	return err
	}

	buf, err := ioutil.ReadAll(httpRsp.Body)
	if err != nil {
	return err
	}

	if err := unm.Unmarshal(buf, resp); err != nil {
	return maybeUnknownEnum(err)
	}

	return nil
	}, opts...)
	if e != nil {
	return nil, "", e
	}
	it.Response = resp
	return resp.GetJobMessages(), resp.GetNextPageToken(), 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)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
	}

	// JobMessageIterator manages a stream of *dataflowpb.JobMessage.
	type JobMessageIterator struct {
	items []*dataflowpb.JobMessage
	pageInfo *iterator.PageInfo
	nextFunc func() error

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// 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 []*dataflowpb.JobMessage, nextPageToken string, err error)
	}

	// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
	func (it JobMessageIterator) 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 JobMessageIterator) Next() (dataflowpb.JobMessage, error) {
	var item *dataflowpb.JobMessage
	if err := it.nextFunc(); err != nil {
	return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
	}

	func (it *JobMessageIterator) bufLen() int {
	return len(it.items)
	}

	func (it *JobMessageIterator) takeBuf() interface{} {
	b := it.items
	it.items = nil
	return b
	}