clouddms/apiv1/data_migration_client.go

// 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 clouddms

import (
	"context"
	"fmt"
	"math"
	"net/url"
	"time"

	"cloud.google.com/go/longrunning"
	lroauto "cloud.google.com/go/longrunning/autogen"
	gax "github.com/googleapis/gax-go/v2"
	"google.golang.org/api/iterator"
	"google.golang.org/api/option"
	"google.golang.org/api/option/internaloption"
	gtransport "google.golang.org/api/transport/grpc"
	clouddmspb "google.golang.org/genproto/googleapis/cloud/clouddms/v1"
	longrunningpb "google.golang.org/genproto/googleapis/longrunning"
	"google.golang.org/grpc"
	"google.golang.org/grpc/metadata"
	"google.golang.org/protobuf/proto"
)

var newDataMigrationClientHook clientHook

// DataMigrationCallOptions contains the retry settings for each method of DataMigrationClient.
type DataMigrationCallOptions struct {
	ListMigrationJobs       []gax.CallOption
	GetMigrationJob         []gax.CallOption
	CreateMigrationJob      []gax.CallOption
	UpdateMigrationJob      []gax.CallOption
	DeleteMigrationJob      []gax.CallOption
	StartMigrationJob       []gax.CallOption
	StopMigrationJob        []gax.CallOption
	ResumeMigrationJob      []gax.CallOption
	PromoteMigrationJob     []gax.CallOption
	VerifyMigrationJob      []gax.CallOption
	RestartMigrationJob     []gax.CallOption
	GenerateSshScript       []gax.CallOption
	ListConnectionProfiles  []gax.CallOption
	GetConnectionProfile    []gax.CallOption
	CreateConnectionProfile []gax.CallOption
	UpdateConnectionProfile []gax.CallOption
	DeleteConnectionProfile []gax.CallOption
}

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

func defaultDataMigrationCallOptions() *DataMigrationCallOptions {
	return &DataMigrationCallOptions{
		ListMigrationJobs:       []gax.CallOption{},
		GetMigrationJob:         []gax.CallOption{},
		CreateMigrationJob:      []gax.CallOption{},
		UpdateMigrationJob:      []gax.CallOption{},
		DeleteMigrationJob:      []gax.CallOption{},
		StartMigrationJob:       []gax.CallOption{},
		StopMigrationJob:        []gax.CallOption{},
		ResumeMigrationJob:      []gax.CallOption{},
		PromoteMigrationJob:     []gax.CallOption{},
		VerifyMigrationJob:      []gax.CallOption{},
		RestartMigrationJob:     []gax.CallOption{},
		GenerateSshScript:       []gax.CallOption{},
		ListConnectionProfiles:  []gax.CallOption{},
		GetConnectionProfile:    []gax.CallOption{},
		CreateConnectionProfile: []gax.CallOption{},
		UpdateConnectionProfile: []gax.CallOption{},
		DeleteConnectionProfile: []gax.CallOption{},
	}
}

// internalDataMigrationClient is an interface that defines the methods availaible from Database Migration API.
type internalDataMigrationClient interface {
	Close() error
	setGoogleClientInfo(...string)
	Connection() *grpc.ClientConn
	ListMigrationJobs(context.Context, *clouddmspb.ListMigrationJobsRequest, ...gax.CallOption) *MigrationJobIterator
	GetMigrationJob(context.Context, *clouddmspb.GetMigrationJobRequest, ...gax.CallOption) (*clouddmspb.MigrationJob, error)
	CreateMigrationJob(context.Context, *clouddmspb.CreateMigrationJobRequest, ...gax.CallOption) (*CreateMigrationJobOperation, error)
	CreateMigrationJobOperation(name string) *CreateMigrationJobOperation
	UpdateMigrationJob(context.Context, *clouddmspb.UpdateMigrationJobRequest, ...gax.CallOption) (*UpdateMigrationJobOperation, error)
	UpdateMigrationJobOperation(name string) *UpdateMigrationJobOperation
	DeleteMigrationJob(context.Context, *clouddmspb.DeleteMigrationJobRequest, ...gax.CallOption) (*DeleteMigrationJobOperation, error)
	DeleteMigrationJobOperation(name string) *DeleteMigrationJobOperation
	StartMigrationJob(context.Context, *clouddmspb.StartMigrationJobRequest, ...gax.CallOption) (*StartMigrationJobOperation, error)
	StartMigrationJobOperation(name string) *StartMigrationJobOperation
	StopMigrationJob(context.Context, *clouddmspb.StopMigrationJobRequest, ...gax.CallOption) (*StopMigrationJobOperation, error)
	StopMigrationJobOperation(name string) *StopMigrationJobOperation
	ResumeMigrationJob(context.Context, *clouddmspb.ResumeMigrationJobRequest, ...gax.CallOption) (*ResumeMigrationJobOperation, error)
	ResumeMigrationJobOperation(name string) *ResumeMigrationJobOperation
	PromoteMigrationJob(context.Context, *clouddmspb.PromoteMigrationJobRequest, ...gax.CallOption) (*PromoteMigrationJobOperation, error)
	PromoteMigrationJobOperation(name string) *PromoteMigrationJobOperation
	VerifyMigrationJob(context.Context, *clouddmspb.VerifyMigrationJobRequest, ...gax.CallOption) (*VerifyMigrationJobOperation, error)
	VerifyMigrationJobOperation(name string) *VerifyMigrationJobOperation
	RestartMigrationJob(context.Context, *clouddmspb.RestartMigrationJobRequest, ...gax.CallOption) (*RestartMigrationJobOperation, error)
	RestartMigrationJobOperation(name string) *RestartMigrationJobOperation
	GenerateSshScript(context.Context, *clouddmspb.GenerateSshScriptRequest, ...gax.CallOption) (*clouddmspb.SshScript, error)
	ListConnectionProfiles(context.Context, *clouddmspb.ListConnectionProfilesRequest, ...gax.CallOption) *ConnectionProfileIterator
	GetConnectionProfile(context.Context, *clouddmspb.GetConnectionProfileRequest, ...gax.CallOption) (*clouddmspb.ConnectionProfile, error)
	CreateConnectionProfile(context.Context, *clouddmspb.CreateConnectionProfileRequest, ...gax.CallOption) (*CreateConnectionProfileOperation, error)
	CreateConnectionProfileOperation(name string) *CreateConnectionProfileOperation
	UpdateConnectionProfile(context.Context, *clouddmspb.UpdateConnectionProfileRequest, ...gax.CallOption) (*UpdateConnectionProfileOperation, error)
	UpdateConnectionProfileOperation(name string) *UpdateConnectionProfileOperation
	DeleteConnectionProfile(context.Context, *clouddmspb.DeleteConnectionProfileRequest, ...gax.CallOption) (*DeleteConnectionProfileOperation, error)
	DeleteConnectionProfileOperation(name string) *DeleteConnectionProfileOperation
}

// DataMigrationClient is a client for interacting with Database Migration API.
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
//
// Database Migration service
type DataMigrationClient struct {
	// The internal transport-dependent client.
	internalClient internalDataMigrationClient

	// The call options for this service.
	CallOptions *DataMigrationCallOptions

	// LROClient is used internally to handle long-running operations.
	// It is exposed so that its CallOptions can be modified if required.
	// Users should not Close this client.
	LROClient *lroauto.OperationsClient
}

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

// Connection returns a connection to the API service.
//
// Deprecated.
func (c *DataMigrationClient) Connection() *grpc.ClientConn {
	return c.internalClient.Connection()
}

// ListMigrationJobs lists migration jobs in a given project and location.
func (c *DataMigrationClient) ListMigrationJobs(ctx context.Context, req *clouddmspb.ListMigrationJobsRequest, opts ...gax.CallOption) *MigrationJobIterator {
	return c.internalClient.ListMigrationJobs(ctx, req, opts...)
}

// GetMigrationJob gets details of a single migration job.
func (c *DataMigrationClient) GetMigrationJob(ctx context.Context, req *clouddmspb.GetMigrationJobRequest, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	return c.internalClient.GetMigrationJob(ctx, req, opts...)
}

// CreateMigrationJob creates a new migration job in a given project and location.
func (c *DataMigrationClient) CreateMigrationJob(ctx context.Context, req *clouddmspb.CreateMigrationJobRequest, opts ...gax.CallOption) (*CreateMigrationJobOperation, error) {
	return c.internalClient.CreateMigrationJob(ctx, req, opts...)
}

// CreateMigrationJobOperation returns a new CreateMigrationJobOperation from a given name.
// The name must be that of a previously created CreateMigrationJobOperation, possibly from a different process.
func (c *DataMigrationClient) CreateMigrationJobOperation(name string) *CreateMigrationJobOperation {
	return c.internalClient.CreateMigrationJobOperation(name)
}

// UpdateMigrationJob updates the parameters of a single migration job.
func (c *DataMigrationClient) UpdateMigrationJob(ctx context.Context, req *clouddmspb.UpdateMigrationJobRequest, opts ...gax.CallOption) (*UpdateMigrationJobOperation, error) {
	return c.internalClient.UpdateMigrationJob(ctx, req, opts...)
}

// UpdateMigrationJobOperation returns a new UpdateMigrationJobOperation from a given name.
// The name must be that of a previously created UpdateMigrationJobOperation, possibly from a different process.
func (c *DataMigrationClient) UpdateMigrationJobOperation(name string) *UpdateMigrationJobOperation {
	return c.internalClient.UpdateMigrationJobOperation(name)
}

// DeleteMigrationJob deletes a single migration job.
func (c *DataMigrationClient) DeleteMigrationJob(ctx context.Context, req *clouddmspb.DeleteMigrationJobRequest, opts ...gax.CallOption) (*DeleteMigrationJobOperation, error) {
	return c.internalClient.DeleteMigrationJob(ctx, req, opts...)
}

// DeleteMigrationJobOperation returns a new DeleteMigrationJobOperation from a given name.
// The name must be that of a previously created DeleteMigrationJobOperation, possibly from a different process.
func (c *DataMigrationClient) DeleteMigrationJobOperation(name string) *DeleteMigrationJobOperation {
	return c.internalClient.DeleteMigrationJobOperation(name)
}

// StartMigrationJob start an already created migration job.
func (c *DataMigrationClient) StartMigrationJob(ctx context.Context, req *clouddmspb.StartMigrationJobRequest, opts ...gax.CallOption) (*StartMigrationJobOperation, error) {
	return c.internalClient.StartMigrationJob(ctx, req, opts...)
}

// StartMigrationJobOperation returns a new StartMigrationJobOperation from a given name.
// The name must be that of a previously created StartMigrationJobOperation, possibly from a different process.
func (c *DataMigrationClient) StartMigrationJobOperation(name string) *StartMigrationJobOperation {
	return c.internalClient.StartMigrationJobOperation(name)
}

// StopMigrationJob stops a running migration job.
func (c *DataMigrationClient) StopMigrationJob(ctx context.Context, req *clouddmspb.StopMigrationJobRequest, opts ...gax.CallOption) (*StopMigrationJobOperation, error) {
	return c.internalClient.StopMigrationJob(ctx, req, opts...)
}

// StopMigrationJobOperation returns a new StopMigrationJobOperation from a given name.
// The name must be that of a previously created StopMigrationJobOperation, possibly from a different process.
func (c *DataMigrationClient) StopMigrationJobOperation(name string) *StopMigrationJobOperation {
	return c.internalClient.StopMigrationJobOperation(name)
}

// ResumeMigrationJob resume a migration job that is currently stopped and is resumable (was
// stopped during CDC phase).
func (c *DataMigrationClient) ResumeMigrationJob(ctx context.Context, req *clouddmspb.ResumeMigrationJobRequest, opts ...gax.CallOption) (*ResumeMigrationJobOperation, error) {
	return c.internalClient.ResumeMigrationJob(ctx, req, opts...)
}

// ResumeMigrationJobOperation returns a new ResumeMigrationJobOperation from a given name.
// The name must be that of a previously created ResumeMigrationJobOperation, possibly from a different process.
func (c *DataMigrationClient) ResumeMigrationJobOperation(name string) *ResumeMigrationJobOperation {
	return c.internalClient.ResumeMigrationJobOperation(name)
}

// PromoteMigrationJob promote a migration job, stopping replication to the destination and
// promoting the destination to be a standalone database.
func (c *DataMigrationClient) PromoteMigrationJob(ctx context.Context, req *clouddmspb.PromoteMigrationJobRequest, opts ...gax.CallOption) (*PromoteMigrationJobOperation, error) {
	return c.internalClient.PromoteMigrationJob(ctx, req, opts...)
}

// PromoteMigrationJobOperation returns a new PromoteMigrationJobOperation from a given name.
// The name must be that of a previously created PromoteMigrationJobOperation, possibly from a different process.
func (c *DataMigrationClient) PromoteMigrationJobOperation(name string) *PromoteMigrationJobOperation {
	return c.internalClient.PromoteMigrationJobOperation(name)
}

// VerifyMigrationJob verify a migration job, making sure the destination can reach the source
// and that all configuration and prerequisites are met.
func (c *DataMigrationClient) VerifyMigrationJob(ctx context.Context, req *clouddmspb.VerifyMigrationJobRequest, opts ...gax.CallOption) (*VerifyMigrationJobOperation, error) {
	return c.internalClient.VerifyMigrationJob(ctx, req, opts...)
}

// VerifyMigrationJobOperation returns a new VerifyMigrationJobOperation from a given name.
// The name must be that of a previously created VerifyMigrationJobOperation, possibly from a different process.
func (c *DataMigrationClient) VerifyMigrationJobOperation(name string) *VerifyMigrationJobOperation {
	return c.internalClient.VerifyMigrationJobOperation(name)
}

// RestartMigrationJob restart a stopped or failed migration job, resetting the destination
// instance to its original state and starting the migration process from
// scratch.
func (c *DataMigrationClient) RestartMigrationJob(ctx context.Context, req *clouddmspb.RestartMigrationJobRequest, opts ...gax.CallOption) (*RestartMigrationJobOperation, error) {
	return c.internalClient.RestartMigrationJob(ctx, req, opts...)
}

// RestartMigrationJobOperation returns a new RestartMigrationJobOperation from a given name.
// The name must be that of a previously created RestartMigrationJobOperation, possibly from a different process.
func (c *DataMigrationClient) RestartMigrationJobOperation(name string) *RestartMigrationJobOperation {
	return c.internalClient.RestartMigrationJobOperation(name)
}

// GenerateSshScript generate a SSH configuration script to configure the reverse SSH
// connectivity.
func (c *DataMigrationClient) GenerateSshScript(ctx context.Context, req *clouddmspb.GenerateSshScriptRequest, opts ...gax.CallOption) (*clouddmspb.SshScript, error) {
	return c.internalClient.GenerateSshScript(ctx, req, opts...)
}

// ListConnectionProfiles retrieve a list of all connection profiles in a given project and location.
func (c *DataMigrationClient) ListConnectionProfiles(ctx context.Context, req *clouddmspb.ListConnectionProfilesRequest, opts ...gax.CallOption) *ConnectionProfileIterator {
	return c.internalClient.ListConnectionProfiles(ctx, req, opts...)
}

// GetConnectionProfile gets details of a single connection profile.
func (c *DataMigrationClient) GetConnectionProfile(ctx context.Context, req *clouddmspb.GetConnectionProfileRequest, opts ...gax.CallOption) (*clouddmspb.ConnectionProfile, error) {
	return c.internalClient.GetConnectionProfile(ctx, req, opts...)
}

// CreateConnectionProfile creates a new connection profile in a given project and location.
func (c *DataMigrationClient) CreateConnectionProfile(ctx context.Context, req *clouddmspb.CreateConnectionProfileRequest, opts ...gax.CallOption) (*CreateConnectionProfileOperation, error) {
	return c.internalClient.CreateConnectionProfile(ctx, req, opts...)
}

// CreateConnectionProfileOperation returns a new CreateConnectionProfileOperation from a given name.
// The name must be that of a previously created CreateConnectionProfileOperation, possibly from a different process.
func (c *DataMigrationClient) CreateConnectionProfileOperation(name string) *CreateConnectionProfileOperation {
	return c.internalClient.CreateConnectionProfileOperation(name)
}

// UpdateConnectionProfile update the configuration of a single connection profile.
func (c *DataMigrationClient) UpdateConnectionProfile(ctx context.Context, req *clouddmspb.UpdateConnectionProfileRequest, opts ...gax.CallOption) (*UpdateConnectionProfileOperation, error) {
	return c.internalClient.UpdateConnectionProfile(ctx, req, opts...)
}

// UpdateConnectionProfileOperation returns a new UpdateConnectionProfileOperation from a given name.
// The name must be that of a previously created UpdateConnectionProfileOperation, possibly from a different process.
func (c *DataMigrationClient) UpdateConnectionProfileOperation(name string) *UpdateConnectionProfileOperation {
	return c.internalClient.UpdateConnectionProfileOperation(name)
}

// DeleteConnectionProfile deletes a single Database Migration Service connection profile.
// A connection profile can only be deleted if it is not in use by any
// active migration jobs.
func (c *DataMigrationClient) DeleteConnectionProfile(ctx context.Context, req *clouddmspb.DeleteConnectionProfileRequest, opts ...gax.CallOption) (*DeleteConnectionProfileOperation, error) {
	return c.internalClient.DeleteConnectionProfile(ctx, req, opts...)
}

// DeleteConnectionProfileOperation returns a new DeleteConnectionProfileOperation from a given name.
// The name must be that of a previously created DeleteConnectionProfileOperation, possibly from a different process.
func (c *DataMigrationClient) DeleteConnectionProfileOperation(name string) *DeleteConnectionProfileOperation {
	return c.internalClient.DeleteConnectionProfileOperation(name)
}

// dataMigrationGRPCClient is a client for interacting with Database Migration API over gRPC transport.
//
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type dataMigrationGRPCClient 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 DataMigrationClient
	CallOptions **DataMigrationCallOptions

	// The gRPC API client.
	dataMigrationClient clouddmspb.DataMigrationServiceClient

	// LROClient is used internally to handle long-running operations.
	// It is exposed so that its CallOptions can be modified if required.
	// Users should not Close this client.
	LROClient **lroauto.OperationsClient

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

// NewDataMigrationClient creates a new data migration service client based on gRPC.
// The returned client must be Closed when it is done being used to clean up its underlying connections.
//
// Database Migration service
func NewDataMigrationClient(ctx context.Context, opts ...option.ClientOption) (*DataMigrationClient, error) {
	clientOpts := defaultDataMigrationGRPCClientOptions()
	if newDataMigrationClientHook != nil {
		hookOpts, err := newDataMigrationClientHook(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 := DataMigrationClient{CallOptions: defaultDataMigrationCallOptions()}

	c := &dataMigrationGRPCClient{
		connPool:            connPool,
		disableDeadlines:    disableDeadlines,
		dataMigrationClient: clouddmspb.NewDataMigrationServiceClient(connPool),
		CallOptions:         &client.CallOptions,
	}
	c.setGoogleClientInfo()

	client.internalClient = c

	client.LROClient, err = lroauto.NewOperationsClient(ctx, gtransport.WithConnPool(connPool))
	if err != nil {
		// This error "should not happen", since we are just reusing old connection pool
		// and never actually need to dial.
		// If this does happen, we could leak connp. However, we cannot close conn:
		// If the user invoked the constructor with option.WithGRPCConn,
		// we would close a connection that's still in use.
		// TODO: investigate error conditions.
		return nil, err
	}
	c.LROClient = &client.LROClient
	return &client, nil
}

// Connection returns a connection to the API service.
//
// Deprecated.
func (c *dataMigrationGRPCClient) 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 *dataMigrationGRPCClient) 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 *dataMigrationGRPCClient) Close() error {
	return c.connPool.Close()
}

func (c *dataMigrationGRPCClient) ListMigrationJobs(ctx context.Context, req *clouddmspb.ListMigrationJobsRequest, opts ...gax.CallOption) *MigrationJobIterator {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).ListMigrationJobs[0:len((*c.CallOptions).ListMigrationJobs):len((*c.CallOptions).ListMigrationJobs)], opts...)
	it := &MigrationJobIterator{}
	req = proto.Clone(req).(*clouddmspb.ListMigrationJobsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*clouddmspb.MigrationJob, string, error) {
		resp := &clouddmspb.ListMigrationJobsResponse{}
		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.dataMigrationClient.ListMigrationJobs(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetMigrationJobs(), 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
}

func (c *dataMigrationGRPCClient) GetMigrationJob(ctx context.Context, req *clouddmspb.GetMigrationJobRequest, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).GetMigrationJob[0:len((*c.CallOptions).GetMigrationJob):len((*c.CallOptions).GetMigrationJob)], opts...)
	var resp *clouddmspb.MigrationJob
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataMigrationClient.GetMigrationJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *dataMigrationGRPCClient) CreateMigrationJob(ctx context.Context, req *clouddmspb.CreateMigrationJobRequest, opts ...gax.CallOption) (*CreateMigrationJobOperation, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).CreateMigrationJob[0:len((*c.CallOptions).CreateMigrationJob):len((*c.CallOptions).CreateMigrationJob)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataMigrationClient.CreateMigrationJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &CreateMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *dataMigrationGRPCClient) UpdateMigrationJob(ctx context.Context, req *clouddmspb.UpdateMigrationJobRequest, opts ...gax.CallOption) (*UpdateMigrationJobOperation, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "migration_job.name", url.QueryEscape(req.GetMigrationJob().GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).UpdateMigrationJob[0:len((*c.CallOptions).UpdateMigrationJob):len((*c.CallOptions).UpdateMigrationJob)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataMigrationClient.UpdateMigrationJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &UpdateMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *dataMigrationGRPCClient) DeleteMigrationJob(ctx context.Context, req *clouddmspb.DeleteMigrationJobRequest, opts ...gax.CallOption) (*DeleteMigrationJobOperation, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).DeleteMigrationJob[0:len((*c.CallOptions).DeleteMigrationJob):len((*c.CallOptions).DeleteMigrationJob)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataMigrationClient.DeleteMigrationJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &DeleteMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *dataMigrationGRPCClient) StartMigrationJob(ctx context.Context, req *clouddmspb.StartMigrationJobRequest, opts ...gax.CallOption) (*StartMigrationJobOperation, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).StartMigrationJob[0:len((*c.CallOptions).StartMigrationJob):len((*c.CallOptions).StartMigrationJob)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataMigrationClient.StartMigrationJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &StartMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *dataMigrationGRPCClient) StopMigrationJob(ctx context.Context, req *clouddmspb.StopMigrationJobRequest, opts ...gax.CallOption) (*StopMigrationJobOperation, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).StopMigrationJob[0:len((*c.CallOptions).StopMigrationJob):len((*c.CallOptions).StopMigrationJob)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataMigrationClient.StopMigrationJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &StopMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *dataMigrationGRPCClient) ResumeMigrationJob(ctx context.Context, req *clouddmspb.ResumeMigrationJobRequest, opts ...gax.CallOption) (*ResumeMigrationJobOperation, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).ResumeMigrationJob[0:len((*c.CallOptions).ResumeMigrationJob):len((*c.CallOptions).ResumeMigrationJob)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataMigrationClient.ResumeMigrationJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &ResumeMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *dataMigrationGRPCClient) PromoteMigrationJob(ctx context.Context, req *clouddmspb.PromoteMigrationJobRequest, opts ...gax.CallOption) (*PromoteMigrationJobOperation, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).PromoteMigrationJob[0:len((*c.CallOptions).PromoteMigrationJob):len((*c.CallOptions).PromoteMigrationJob)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataMigrationClient.PromoteMigrationJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &PromoteMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *dataMigrationGRPCClient) VerifyMigrationJob(ctx context.Context, req *clouddmspb.VerifyMigrationJobRequest, opts ...gax.CallOption) (*VerifyMigrationJobOperation, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).VerifyMigrationJob[0:len((*c.CallOptions).VerifyMigrationJob):len((*c.CallOptions).VerifyMigrationJob)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataMigrationClient.VerifyMigrationJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &VerifyMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *dataMigrationGRPCClient) RestartMigrationJob(ctx context.Context, req *clouddmspb.RestartMigrationJobRequest, opts ...gax.CallOption) (*RestartMigrationJobOperation, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).RestartMigrationJob[0:len((*c.CallOptions).RestartMigrationJob):len((*c.CallOptions).RestartMigrationJob)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataMigrationClient.RestartMigrationJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &RestartMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *dataMigrationGRPCClient) GenerateSshScript(ctx context.Context, req *clouddmspb.GenerateSshScriptRequest, opts ...gax.CallOption) (*clouddmspb.SshScript, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "migration_job", url.QueryEscape(req.GetMigrationJob())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).GenerateSshScript[0:len((*c.CallOptions).GenerateSshScript):len((*c.CallOptions).GenerateSshScript)], opts...)
	var resp *clouddmspb.SshScript
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataMigrationClient.GenerateSshScript(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *dataMigrationGRPCClient) ListConnectionProfiles(ctx context.Context, req *clouddmspb.ListConnectionProfilesRequest, opts ...gax.CallOption) *ConnectionProfileIterator {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).ListConnectionProfiles[0:len((*c.CallOptions).ListConnectionProfiles):len((*c.CallOptions).ListConnectionProfiles)], opts...)
	it := &ConnectionProfileIterator{}
	req = proto.Clone(req).(*clouddmspb.ListConnectionProfilesRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*clouddmspb.ConnectionProfile, string, error) {
		resp := &clouddmspb.ListConnectionProfilesResponse{}
		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.dataMigrationClient.ListConnectionProfiles(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetConnectionProfiles(), 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
}

func (c *dataMigrationGRPCClient) GetConnectionProfile(ctx context.Context, req *clouddmspb.GetConnectionProfileRequest, opts ...gax.CallOption) (*clouddmspb.ConnectionProfile, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).GetConnectionProfile[0:len((*c.CallOptions).GetConnectionProfile):len((*c.CallOptions).GetConnectionProfile)], opts...)
	var resp *clouddmspb.ConnectionProfile
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataMigrationClient.GetConnectionProfile(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *dataMigrationGRPCClient) CreateConnectionProfile(ctx context.Context, req *clouddmspb.CreateConnectionProfileRequest, opts ...gax.CallOption) (*CreateConnectionProfileOperation, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).CreateConnectionProfile[0:len((*c.CallOptions).CreateConnectionProfile):len((*c.CallOptions).CreateConnectionProfile)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataMigrationClient.CreateConnectionProfile(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &CreateConnectionProfileOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *dataMigrationGRPCClient) UpdateConnectionProfile(ctx context.Context, req *clouddmspb.UpdateConnectionProfileRequest, opts ...gax.CallOption) (*UpdateConnectionProfileOperation, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "connection_profile.name", url.QueryEscape(req.GetConnectionProfile().GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).UpdateConnectionProfile[0:len((*c.CallOptions).UpdateConnectionProfile):len((*c.CallOptions).UpdateConnectionProfile)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataMigrationClient.UpdateConnectionProfile(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &UpdateConnectionProfileOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *dataMigrationGRPCClient) DeleteConnectionProfile(ctx context.Context, req *clouddmspb.DeleteConnectionProfileRequest, opts ...gax.CallOption) (*DeleteConnectionProfileOperation, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))
	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).DeleteConnectionProfile[0:len((*c.CallOptions).DeleteConnectionProfile):len((*c.CallOptions).DeleteConnectionProfile)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataMigrationClient.DeleteConnectionProfile(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &DeleteConnectionProfileOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

// CreateConnectionProfileOperation manages a long-running operation from CreateConnectionProfile.
type CreateConnectionProfileOperation struct {
	lro *longrunning.Operation
}

// CreateConnectionProfileOperation returns a new CreateConnectionProfileOperation from a given name.
// The name must be that of a previously created CreateConnectionProfileOperation, possibly from a different process.
func (c *dataMigrationGRPCClient) CreateConnectionProfileOperation(name string) *CreateConnectionProfileOperation {
	return &CreateConnectionProfileOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *CreateConnectionProfileOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.ConnectionProfile, error) {
	var resp clouddmspb.ConnectionProfile
	if err := op.lro.WaitWithInterval(ctx, &resp, time.Minute, opts...); err != nil {
		return nil, err
	}
	return &resp, nil
}

// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *CreateConnectionProfileOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.ConnectionProfile, error) {
	var resp clouddmspb.ConnectionProfile
	if err := op.lro.Poll(ctx, &resp, opts...); err != nil {
		return nil, err
	}
	if !op.Done() {
		return nil, nil
	}
	return &resp, nil
}

// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *CreateConnectionProfileOperation) Metadata() (*clouddmspb.OperationMetadata, error) {
	var meta clouddmspb.OperationMetadata
	if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
		return nil, nil
	} else if err != nil {
		return nil, err
	}
	return &meta, nil
}

// Done reports whether the long-running operation has completed.
func (op *CreateConnectionProfileOperation) Done() bool {
	return op.lro.Done()
}

// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *CreateConnectionProfileOperation) Name() string {
	return op.lro.Name()
}

// CreateMigrationJobOperation manages a long-running operation from CreateMigrationJob.
type CreateMigrationJobOperation struct {
	lro *longrunning.Operation
}

// CreateMigrationJobOperation returns a new CreateMigrationJobOperation from a given name.
// The name must be that of a previously created CreateMigrationJobOperation, possibly from a different process.
func (c *dataMigrationGRPCClient) CreateMigrationJobOperation(name string) *CreateMigrationJobOperation {
	return &CreateMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *CreateMigrationJobOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	var resp clouddmspb.MigrationJob
	if err := op.lro.WaitWithInterval(ctx, &resp, time.Minute, opts...); err != nil {
		return nil, err
	}
	return &resp, nil
}

// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *CreateMigrationJobOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	var resp clouddmspb.MigrationJob
	if err := op.lro.Poll(ctx, &resp, opts...); err != nil {
		return nil, err
	}
	if !op.Done() {
		return nil, nil
	}
	return &resp, nil
}

// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *CreateMigrationJobOperation) Metadata() (*clouddmspb.OperationMetadata, error) {
	var meta clouddmspb.OperationMetadata
	if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
		return nil, nil
	} else if err != nil {
		return nil, err
	}
	return &meta, nil
}

// Done reports whether the long-running operation has completed.
func (op *CreateMigrationJobOperation) Done() bool {
	return op.lro.Done()
}

// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *CreateMigrationJobOperation) Name() string {
	return op.lro.Name()
}

// DeleteConnectionProfileOperation manages a long-running operation from DeleteConnectionProfile.
type DeleteConnectionProfileOperation struct {
	lro *longrunning.Operation
}

// DeleteConnectionProfileOperation returns a new DeleteConnectionProfileOperation from a given name.
// The name must be that of a previously created DeleteConnectionProfileOperation, possibly from a different process.
func (c *dataMigrationGRPCClient) DeleteConnectionProfileOperation(name string) *DeleteConnectionProfileOperation {
	return &DeleteConnectionProfileOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *DeleteConnectionProfileOperation) Wait(ctx context.Context, opts ...gax.CallOption) error {
	return op.lro.WaitWithInterval(ctx, nil, time.Minute, opts...)
}

// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *DeleteConnectionProfileOperation) Poll(ctx context.Context, opts ...gax.CallOption) error {
	return op.lro.Poll(ctx, nil, opts...)
}

// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *DeleteConnectionProfileOperation) Metadata() (*clouddmspb.OperationMetadata, error) {
	var meta clouddmspb.OperationMetadata
	if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
		return nil, nil
	} else if err != nil {
		return nil, err
	}
	return &meta, nil
}

// Done reports whether the long-running operation has completed.
func (op *DeleteConnectionProfileOperation) Done() bool {
	return op.lro.Done()
}

// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *DeleteConnectionProfileOperation) Name() string {
	return op.lro.Name()
}

// DeleteMigrationJobOperation manages a long-running operation from DeleteMigrationJob.
type DeleteMigrationJobOperation struct {
	lro *longrunning.Operation
}

// DeleteMigrationJobOperation returns a new DeleteMigrationJobOperation from a given name.
// The name must be that of a previously created DeleteMigrationJobOperation, possibly from a different process.
func (c *dataMigrationGRPCClient) DeleteMigrationJobOperation(name string) *DeleteMigrationJobOperation {
	return &DeleteMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *DeleteMigrationJobOperation) Wait(ctx context.Context, opts ...gax.CallOption) error {
	return op.lro.WaitWithInterval(ctx, nil, time.Minute, opts...)
}

// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *DeleteMigrationJobOperation) Poll(ctx context.Context, opts ...gax.CallOption) error {
	return op.lro.Poll(ctx, nil, opts...)
}

// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *DeleteMigrationJobOperation) Metadata() (*clouddmspb.OperationMetadata, error) {
	var meta clouddmspb.OperationMetadata
	if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
		return nil, nil
	} else if err != nil {
		return nil, err
	}
	return &meta, nil
}

// Done reports whether the long-running operation has completed.
func (op *DeleteMigrationJobOperation) Done() bool {
	return op.lro.Done()
}

// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *DeleteMigrationJobOperation) Name() string {
	return op.lro.Name()
}

// PromoteMigrationJobOperation manages a long-running operation from PromoteMigrationJob.
type PromoteMigrationJobOperation struct {
	lro *longrunning.Operation
}

// PromoteMigrationJobOperation returns a new PromoteMigrationJobOperation from a given name.
// The name must be that of a previously created PromoteMigrationJobOperation, possibly from a different process.
func (c *dataMigrationGRPCClient) PromoteMigrationJobOperation(name string) *PromoteMigrationJobOperation {
	return &PromoteMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *PromoteMigrationJobOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	var resp clouddmspb.MigrationJob
	if err := op.lro.WaitWithInterval(ctx, &resp, time.Minute, opts...); err != nil {
		return nil, err
	}
	return &resp, nil
}

// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *PromoteMigrationJobOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	var resp clouddmspb.MigrationJob
	if err := op.lro.Poll(ctx, &resp, opts...); err != nil {
		return nil, err
	}
	if !op.Done() {
		return nil, nil
	}
	return &resp, nil
}

// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *PromoteMigrationJobOperation) Metadata() (*clouddmspb.OperationMetadata, error) {
	var meta clouddmspb.OperationMetadata
	if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
		return nil, nil
	} else if err != nil {
		return nil, err
	}
	return &meta, nil
}

// Done reports whether the long-running operation has completed.
func (op *PromoteMigrationJobOperation) Done() bool {
	return op.lro.Done()
}

// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *PromoteMigrationJobOperation) Name() string {
	return op.lro.Name()
}

// RestartMigrationJobOperation manages a long-running operation from RestartMigrationJob.
type RestartMigrationJobOperation struct {
	lro *longrunning.Operation
}

// RestartMigrationJobOperation returns a new RestartMigrationJobOperation from a given name.
// The name must be that of a previously created RestartMigrationJobOperation, possibly from a different process.
func (c *dataMigrationGRPCClient) RestartMigrationJobOperation(name string) *RestartMigrationJobOperation {
	return &RestartMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *RestartMigrationJobOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	var resp clouddmspb.MigrationJob
	if err := op.lro.WaitWithInterval(ctx, &resp, time.Minute, opts...); err != nil {
		return nil, err
	}
	return &resp, nil
}

// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *RestartMigrationJobOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	var resp clouddmspb.MigrationJob
	if err := op.lro.Poll(ctx, &resp, opts...); err != nil {
		return nil, err
	}
	if !op.Done() {
		return nil, nil
	}
	return &resp, nil
}

// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *RestartMigrationJobOperation) Metadata() (*clouddmspb.OperationMetadata, error) {
	var meta clouddmspb.OperationMetadata
	if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
		return nil, nil
	} else if err != nil {
		return nil, err
	}
	return &meta, nil
}

// Done reports whether the long-running operation has completed.
func (op *RestartMigrationJobOperation) Done() bool {
	return op.lro.Done()
}

// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *RestartMigrationJobOperation) Name() string {
	return op.lro.Name()
}

// ResumeMigrationJobOperation manages a long-running operation from ResumeMigrationJob.
type ResumeMigrationJobOperation struct {
	lro *longrunning.Operation
}

// ResumeMigrationJobOperation returns a new ResumeMigrationJobOperation from a given name.
// The name must be that of a previously created ResumeMigrationJobOperation, possibly from a different process.
func (c *dataMigrationGRPCClient) ResumeMigrationJobOperation(name string) *ResumeMigrationJobOperation {
	return &ResumeMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *ResumeMigrationJobOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	var resp clouddmspb.MigrationJob
	if err := op.lro.WaitWithInterval(ctx, &resp, time.Minute, opts...); err != nil {
		return nil, err
	}
	return &resp, nil
}

// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *ResumeMigrationJobOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	var resp clouddmspb.MigrationJob
	if err := op.lro.Poll(ctx, &resp, opts...); err != nil {
		return nil, err
	}
	if !op.Done() {
		return nil, nil
	}
	return &resp, nil
}

// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *ResumeMigrationJobOperation) Metadata() (*clouddmspb.OperationMetadata, error) {
	var meta clouddmspb.OperationMetadata
	if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
		return nil, nil
	} else if err != nil {
		return nil, err
	}
	return &meta, nil
}

// Done reports whether the long-running operation has completed.
func (op *ResumeMigrationJobOperation) Done() bool {
	return op.lro.Done()
}

// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *ResumeMigrationJobOperation) Name() string {
	return op.lro.Name()
}

// StartMigrationJobOperation manages a long-running operation from StartMigrationJob.
type StartMigrationJobOperation struct {
	lro *longrunning.Operation
}

// StartMigrationJobOperation returns a new StartMigrationJobOperation from a given name.
// The name must be that of a previously created StartMigrationJobOperation, possibly from a different process.
func (c *dataMigrationGRPCClient) StartMigrationJobOperation(name string) *StartMigrationJobOperation {
	return &StartMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *StartMigrationJobOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	var resp clouddmspb.MigrationJob
	if err := op.lro.WaitWithInterval(ctx, &resp, time.Minute, opts...); err != nil {
		return nil, err
	}
	return &resp, nil
}

// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *StartMigrationJobOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	var resp clouddmspb.MigrationJob
	if err := op.lro.Poll(ctx, &resp, opts...); err != nil {
		return nil, err
	}
	if !op.Done() {
		return nil, nil
	}
	return &resp, nil
}

// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *StartMigrationJobOperation) Metadata() (*clouddmspb.OperationMetadata, error) {
	var meta clouddmspb.OperationMetadata
	if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
		return nil, nil
	} else if err != nil {
		return nil, err
	}
	return &meta, nil
}

// Done reports whether the long-running operation has completed.
func (op *StartMigrationJobOperation) Done() bool {
	return op.lro.Done()
}

// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *StartMigrationJobOperation) Name() string {
	return op.lro.Name()
}

// StopMigrationJobOperation manages a long-running operation from StopMigrationJob.
type StopMigrationJobOperation struct {
	lro *longrunning.Operation
}

// StopMigrationJobOperation returns a new StopMigrationJobOperation from a given name.
// The name must be that of a previously created StopMigrationJobOperation, possibly from a different process.
func (c *dataMigrationGRPCClient) StopMigrationJobOperation(name string) *StopMigrationJobOperation {
	return &StopMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *StopMigrationJobOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	var resp clouddmspb.MigrationJob
	if err := op.lro.WaitWithInterval(ctx, &resp, time.Minute, opts...); err != nil {
		return nil, err
	}
	return &resp, nil
}

// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *StopMigrationJobOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	var resp clouddmspb.MigrationJob
	if err := op.lro.Poll(ctx, &resp, opts...); err != nil {
		return nil, err
	}
	if !op.Done() {
		return nil, nil
	}
	return &resp, nil
}

// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *StopMigrationJobOperation) Metadata() (*clouddmspb.OperationMetadata, error) {
	var meta clouddmspb.OperationMetadata
	if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
		return nil, nil
	} else if err != nil {
		return nil, err
	}
	return &meta, nil
}

// Done reports whether the long-running operation has completed.
func (op *StopMigrationJobOperation) Done() bool {
	return op.lro.Done()
}

// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *StopMigrationJobOperation) Name() string {
	return op.lro.Name()
}

// UpdateConnectionProfileOperation manages a long-running operation from UpdateConnectionProfile.
type UpdateConnectionProfileOperation struct {
	lro *longrunning.Operation
}

// UpdateConnectionProfileOperation returns a new UpdateConnectionProfileOperation from a given name.
// The name must be that of a previously created UpdateConnectionProfileOperation, possibly from a different process.
func (c *dataMigrationGRPCClient) UpdateConnectionProfileOperation(name string) *UpdateConnectionProfileOperation {
	return &UpdateConnectionProfileOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *UpdateConnectionProfileOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.ConnectionProfile, error) {
	var resp clouddmspb.ConnectionProfile
	if err := op.lro.WaitWithInterval(ctx, &resp, time.Minute, opts...); err != nil {
		return nil, err
	}
	return &resp, nil
}

// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *UpdateConnectionProfileOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.ConnectionProfile, error) {
	var resp clouddmspb.ConnectionProfile
	if err := op.lro.Poll(ctx, &resp, opts...); err != nil {
		return nil, err
	}
	if !op.Done() {
		return nil, nil
	}
	return &resp, nil
}

// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *UpdateConnectionProfileOperation) Metadata() (*clouddmspb.OperationMetadata, error) {
	var meta clouddmspb.OperationMetadata
	if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
		return nil, nil
	} else if err != nil {
		return nil, err
	}
	return &meta, nil
}

// Done reports whether the long-running operation has completed.
func (op *UpdateConnectionProfileOperation) Done() bool {
	return op.lro.Done()
}

// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *UpdateConnectionProfileOperation) Name() string {
	return op.lro.Name()
}

// UpdateMigrationJobOperation manages a long-running operation from UpdateMigrationJob.
type UpdateMigrationJobOperation struct {
	lro *longrunning.Operation
}

// UpdateMigrationJobOperation returns a new UpdateMigrationJobOperation from a given name.
// The name must be that of a previously created UpdateMigrationJobOperation, possibly from a different process.
func (c *dataMigrationGRPCClient) UpdateMigrationJobOperation(name string) *UpdateMigrationJobOperation {
	return &UpdateMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *UpdateMigrationJobOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	var resp clouddmspb.MigrationJob
	if err := op.lro.WaitWithInterval(ctx, &resp, time.Minute, opts...); err != nil {
		return nil, err
	}
	return &resp, nil
}

// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *UpdateMigrationJobOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	var resp clouddmspb.MigrationJob
	if err := op.lro.Poll(ctx, &resp, opts...); err != nil {
		return nil, err
	}
	if !op.Done() {
		return nil, nil
	}
	return &resp, nil
}

// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *UpdateMigrationJobOperation) Metadata() (*clouddmspb.OperationMetadata, error) {
	var meta clouddmspb.OperationMetadata
	if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
		return nil, nil
	} else if err != nil {
		return nil, err
	}
	return &meta, nil
}

// Done reports whether the long-running operation has completed.
func (op *UpdateMigrationJobOperation) Done() bool {
	return op.lro.Done()
}

// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *UpdateMigrationJobOperation) Name() string {
	return op.lro.Name()
}

// VerifyMigrationJobOperation manages a long-running operation from VerifyMigrationJob.
type VerifyMigrationJobOperation struct {
	lro *longrunning.Operation
}

// VerifyMigrationJobOperation returns a new VerifyMigrationJobOperation from a given name.
// The name must be that of a previously created VerifyMigrationJobOperation, possibly from a different process.
func (c *dataMigrationGRPCClient) VerifyMigrationJobOperation(name string) *VerifyMigrationJobOperation {
	return &VerifyMigrationJobOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
//
// See documentation of Poll for error-handling information.
func (op *VerifyMigrationJobOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	var resp clouddmspb.MigrationJob
	if err := op.lro.WaitWithInterval(ctx, &resp, time.Minute, opts...); err != nil {
		return nil, err
	}
	return &resp, nil
}

// Poll fetches the latest state of the long-running operation.
//
// Poll also fetches the latest metadata, which can be retrieved by Metadata.
//
// If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
// the operation has completed with failure, the error is returned and op.Done will return true.
// If Poll succeeds and the operation has completed successfully,
// op.Done will return true, and the response of the operation is returned.
// If Poll succeeds and the operation has not completed, the returned response and error are both nil.
func (op *VerifyMigrationJobOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*clouddmspb.MigrationJob, error) {
	var resp clouddmspb.MigrationJob
	if err := op.lro.Poll(ctx, &resp, opts...); err != nil {
		return nil, err
	}
	if !op.Done() {
		return nil, nil
	}
	return &resp, nil
}

// Metadata returns metadata associated with the long-running operation.
// Metadata itself does not contact the server, but Poll does.
// To get the latest metadata, call this method after a successful call to Poll.
// If the metadata is not available, the returned metadata and error are both nil.
func (op *VerifyMigrationJobOperation) Metadata() (*clouddmspb.OperationMetadata, error) {
	var meta clouddmspb.OperationMetadata
	if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
		return nil, nil
	} else if err != nil {
		return nil, err
	}
	return &meta, nil
}

// Done reports whether the long-running operation has completed.
func (op *VerifyMigrationJobOperation) Done() bool {
	return op.lro.Done()
}

// Name returns the name of the long-running operation.
// The name is assigned by the server and is unique within the service from which the operation is created.
func (op *VerifyMigrationJobOperation) Name() string {
	return op.lro.Name()
}

// ConnectionProfileIterator manages a stream of *clouddmspb.ConnectionProfile.
type ConnectionProfileIterator struct {
	items    []*clouddmspb.ConnectionProfile
	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 []*clouddmspb.ConnectionProfile, nextPageToken string, err error)
}

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

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

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

// MigrationJobIterator manages a stream of *clouddmspb.MigrationJob.
type MigrationJobIterator struct {
	items    []*clouddmspb.MigrationJob
	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 []*clouddmspb.MigrationJob, nextPageToken string, err error)
}

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

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

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