data_scan_client.go

// Copyright 2023 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 dataplex

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

	dataplexpb "cloud.google.com/go/dataplex/apiv1/dataplexpb"
	"cloud.google.com/go/longrunning"
	lroauto "cloud.google.com/go/longrunning/autogen"
	longrunningpb "cloud.google.com/go/longrunning/autogen/longrunningpb"
	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"
	locationpb "google.golang.org/genproto/googleapis/cloud/location"
	"google.golang.org/grpc"
	"google.golang.org/protobuf/proto"
)

var newDataScanClientHook clientHook

// DataScanCallOptions contains the retry settings for each method of DataScanClient.
type DataScanCallOptions struct {
	CreateDataScan   []gax.CallOption
	UpdateDataScan   []gax.CallOption
	DeleteDataScan   []gax.CallOption
	GetDataScan      []gax.CallOption
	ListDataScans    []gax.CallOption
	RunDataScan      []gax.CallOption
	GetDataScanJob   []gax.CallOption
	ListDataScanJobs []gax.CallOption
	GetLocation      []gax.CallOption
	ListLocations    []gax.CallOption
	CancelOperation  []gax.CallOption
	DeleteOperation  []gax.CallOption
	GetOperation     []gax.CallOption
	ListOperations   []gax.CallOption
}

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

func defaultDataScanCallOptions() *DataScanCallOptions {
	return &DataScanCallOptions{
		CreateDataScan:   []gax.CallOption{},
		UpdateDataScan:   []gax.CallOption{},
		DeleteDataScan:   []gax.CallOption{},
		GetDataScan:      []gax.CallOption{},
		ListDataScans:    []gax.CallOption{},
		RunDataScan:      []gax.CallOption{},
		GetDataScanJob:   []gax.CallOption{},
		ListDataScanJobs: []gax.CallOption{},
		GetLocation:      []gax.CallOption{},
		ListLocations:    []gax.CallOption{},
		CancelOperation:  []gax.CallOption{},
		DeleteOperation:  []gax.CallOption{},
		GetOperation:     []gax.CallOption{},
		ListOperations:   []gax.CallOption{},
	}
}

// internalDataScanClient is an interface that defines the methods available from Cloud Dataplex API.
type internalDataScanClient interface {
	Close() error
	setGoogleClientInfo(...string)
	Connection() *grpc.ClientConn
	CreateDataScan(context.Context, *dataplexpb.CreateDataScanRequest, ...gax.CallOption) (*CreateDataScanOperation, error)
	CreateDataScanOperation(name string) *CreateDataScanOperation
	UpdateDataScan(context.Context, *dataplexpb.UpdateDataScanRequest, ...gax.CallOption) (*UpdateDataScanOperation, error)
	UpdateDataScanOperation(name string) *UpdateDataScanOperation
	DeleteDataScan(context.Context, *dataplexpb.DeleteDataScanRequest, ...gax.CallOption) (*DeleteDataScanOperation, error)
	DeleteDataScanOperation(name string) *DeleteDataScanOperation
	GetDataScan(context.Context, *dataplexpb.GetDataScanRequest, ...gax.CallOption) (*dataplexpb.DataScan, error)
	ListDataScans(context.Context, *dataplexpb.ListDataScansRequest, ...gax.CallOption) *DataScanIterator
	RunDataScan(context.Context, *dataplexpb.RunDataScanRequest, ...gax.CallOption) (*dataplexpb.RunDataScanResponse, error)
	GetDataScanJob(context.Context, *dataplexpb.GetDataScanJobRequest, ...gax.CallOption) (*dataplexpb.DataScanJob, error)
	ListDataScanJobs(context.Context, *dataplexpb.ListDataScanJobsRequest, ...gax.CallOption) *DataScanJobIterator
	GetLocation(context.Context, *locationpb.GetLocationRequest, ...gax.CallOption) (*locationpb.Location, error)
	ListLocations(context.Context, *locationpb.ListLocationsRequest, ...gax.CallOption) *LocationIterator
	CancelOperation(context.Context, *longrunningpb.CancelOperationRequest, ...gax.CallOption) error
	DeleteOperation(context.Context, *longrunningpb.DeleteOperationRequest, ...gax.CallOption) error
	GetOperation(context.Context, *longrunningpb.GetOperationRequest, ...gax.CallOption) (*longrunningpb.Operation, error)
	ListOperations(context.Context, *longrunningpb.ListOperationsRequest, ...gax.CallOption) *OperationIterator
}

// DataScanClient is a client for interacting with Cloud Dataplex API.
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
//
// DataScanService manages DataScan resources which can be configured to run
// various types of data scanning workload and generate enriched metadata (e.g.
// Data Profile, Data Quality) for the data source.
type DataScanClient struct {
	// The internal transport-dependent client.
	internalClient internalDataScanClient

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

	// 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 *DataScanClient) 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 *DataScanClient) 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 *DataScanClient) Connection() *grpc.ClientConn {
	return c.internalClient.Connection()
}

// CreateDataScan creates a DataScan resource.
func (c *DataScanClient) CreateDataScan(ctx context.Context, req *dataplexpb.CreateDataScanRequest, opts ...gax.CallOption) (*CreateDataScanOperation, error) {
	return c.internalClient.CreateDataScan(ctx, req, opts...)
}

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

// UpdateDataScan updates a DataScan resource.
func (c *DataScanClient) UpdateDataScan(ctx context.Context, req *dataplexpb.UpdateDataScanRequest, opts ...gax.CallOption) (*UpdateDataScanOperation, error) {
	return c.internalClient.UpdateDataScan(ctx, req, opts...)
}

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

// DeleteDataScan deletes a DataScan resource.
func (c *DataScanClient) DeleteDataScan(ctx context.Context, req *dataplexpb.DeleteDataScanRequest, opts ...gax.CallOption) (*DeleteDataScanOperation, error) {
	return c.internalClient.DeleteDataScan(ctx, req, opts...)
}

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

// GetDataScan gets a DataScan resource.
func (c *DataScanClient) GetDataScan(ctx context.Context, req *dataplexpb.GetDataScanRequest, opts ...gax.CallOption) (*dataplexpb.DataScan, error) {
	return c.internalClient.GetDataScan(ctx, req, opts...)
}

// ListDataScans lists DataScans.
func (c *DataScanClient) ListDataScans(ctx context.Context, req *dataplexpb.ListDataScansRequest, opts ...gax.CallOption) *DataScanIterator {
	return c.internalClient.ListDataScans(ctx, req, opts...)
}

// RunDataScan runs an on-demand execution of a DataScan
func (c *DataScanClient) RunDataScan(ctx context.Context, req *dataplexpb.RunDataScanRequest, opts ...gax.CallOption) (*dataplexpb.RunDataScanResponse, error) {
	return c.internalClient.RunDataScan(ctx, req, opts...)
}

// GetDataScanJob gets a DataScanJob resource.
func (c *DataScanClient) GetDataScanJob(ctx context.Context, req *dataplexpb.GetDataScanJobRequest, opts ...gax.CallOption) (*dataplexpb.DataScanJob, error) {
	return c.internalClient.GetDataScanJob(ctx, req, opts...)
}

// ListDataScanJobs lists DataScanJobs under the given DataScan.
func (c *DataScanClient) ListDataScanJobs(ctx context.Context, req *dataplexpb.ListDataScanJobsRequest, opts ...gax.CallOption) *DataScanJobIterator {
	return c.internalClient.ListDataScanJobs(ctx, req, opts...)
}

// GetLocation gets information about a location.
func (c *DataScanClient) GetLocation(ctx context.Context, req *locationpb.GetLocationRequest, opts ...gax.CallOption) (*locationpb.Location, error) {
	return c.internalClient.GetLocation(ctx, req, opts...)
}

// ListLocations lists information about the supported locations for this service.
func (c *DataScanClient) ListLocations(ctx context.Context, req *locationpb.ListLocationsRequest, opts ...gax.CallOption) *LocationIterator {
	return c.internalClient.ListLocations(ctx, req, opts...)
}

// CancelOperation is a utility method from google.longrunning.Operations.
func (c *DataScanClient) CancelOperation(ctx context.Context, req *longrunningpb.CancelOperationRequest, opts ...gax.CallOption) error {
	return c.internalClient.CancelOperation(ctx, req, opts...)
}

// DeleteOperation is a utility method from google.longrunning.Operations.
func (c *DataScanClient) DeleteOperation(ctx context.Context, req *longrunningpb.DeleteOperationRequest, opts ...gax.CallOption) error {
	return c.internalClient.DeleteOperation(ctx, req, opts...)
}

// GetOperation is a utility method from google.longrunning.Operations.
func (c *DataScanClient) GetOperation(ctx context.Context, req *longrunningpb.GetOperationRequest, opts ...gax.CallOption) (*longrunningpb.Operation, error) {
	return c.internalClient.GetOperation(ctx, req, opts...)
}

// ListOperations is a utility method from google.longrunning.Operations.
func (c *DataScanClient) ListOperations(ctx context.Context, req *longrunningpb.ListOperationsRequest, opts ...gax.CallOption) *OperationIterator {
	return c.internalClient.ListOperations(ctx, req, opts...)
}

// dataScanGRPCClient is a client for interacting with Cloud Dataplex API over gRPC transport.
//
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type dataScanGRPCClient struct {
	// Connection pool of gRPC connections to the service.
	connPool gtransport.ConnPool

	// Points back to the CallOptions field of the containing DataScanClient
	CallOptions **DataScanCallOptions

	// The gRPC API client.
	dataScanClient dataplexpb.DataScanServiceClient

	// 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

	operationsClient longrunningpb.OperationsClient

	locationsClient locationpb.LocationsClient

	// The x-goog-* metadata to be sent with each request.
	xGoogHeaders []string
}

// NewDataScanClient creates a new data scan service client based on gRPC.
// The returned client must be Closed when it is done being used to clean up its underlying connections.
//
// DataScanService manages DataScan resources which can be configured to run
// various types of data scanning workload and generate enriched metadata (e.g.
// Data Profile, Data Quality) for the data source.
func NewDataScanClient(ctx context.Context, opts ...option.ClientOption) (*DataScanClient, error) {
	clientOpts := defaultDataScanGRPCClientOptions()
	if newDataScanClientHook != nil {
		hookOpts, err := newDataScanClientHook(ctx, clientHookParams{})
		if err != nil {
			return nil, err
		}
		clientOpts = append(clientOpts, hookOpts...)
	}

	connPool, err := gtransport.DialPool(ctx, append(clientOpts, opts...)...)
	if err != nil {
		return nil, err
	}
	client := DataScanClient{CallOptions: defaultDataScanCallOptions()}

	c := &dataScanGRPCClient{
		connPool:         connPool,
		dataScanClient:   dataplexpb.NewDataScanServiceClient(connPool),
		CallOptions:      &client.CallOptions,
		operationsClient: longrunningpb.NewOperationsClient(connPool),
		locationsClient:  locationpb.NewLocationsClient(connPool),
	}
	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: Connections are now pooled so this method does not always
// return the same resource.
func (c *dataScanGRPCClient) 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 *dataScanGRPCClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", gax.GoVersion}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "grpc", grpc.Version)
	c.xGoogHeaders = []string{"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 *dataScanGRPCClient) Close() error {
	return c.connPool.Close()
}

func (c *dataScanGRPCClient) CreateDataScan(ctx context.Context, req *dataplexpb.CreateDataScanRequest, opts ...gax.CallOption) (*CreateDataScanOperation, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).CreateDataScan[0:len((*c.CallOptions).CreateDataScan):len((*c.CallOptions).CreateDataScan)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataScanClient.CreateDataScan(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &CreateDataScanOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *dataScanGRPCClient) UpdateDataScan(ctx context.Context, req *dataplexpb.UpdateDataScanRequest, opts ...gax.CallOption) (*UpdateDataScanOperation, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "data_scan.name", url.QueryEscape(req.GetDataScan().GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).UpdateDataScan[0:len((*c.CallOptions).UpdateDataScan):len((*c.CallOptions).UpdateDataScan)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataScanClient.UpdateDataScan(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &UpdateDataScanOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *dataScanGRPCClient) DeleteDataScan(ctx context.Context, req *dataplexpb.DeleteDataScanRequest, opts ...gax.CallOption) (*DeleteDataScanOperation, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).DeleteDataScan[0:len((*c.CallOptions).DeleteDataScan):len((*c.CallOptions).DeleteDataScan)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataScanClient.DeleteDataScan(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &DeleteDataScanOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *dataScanGRPCClient) GetDataScan(ctx context.Context, req *dataplexpb.GetDataScanRequest, opts ...gax.CallOption) (*dataplexpb.DataScan, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetDataScan[0:len((*c.CallOptions).GetDataScan):len((*c.CallOptions).GetDataScan)], opts...)
	var resp *dataplexpb.DataScan
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataScanClient.GetDataScan(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *dataScanGRPCClient) ListDataScans(ctx context.Context, req *dataplexpb.ListDataScansRequest, opts ...gax.CallOption) *DataScanIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListDataScans[0:len((*c.CallOptions).ListDataScans):len((*c.CallOptions).ListDataScans)], opts...)
	it := &DataScanIterator{}
	req = proto.Clone(req).(*dataplexpb.ListDataScansRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*dataplexpb.DataScan, string, error) {
		resp := &dataplexpb.ListDataScansResponse{}
		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.dataScanClient.ListDataScans(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetDataScans(), 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 *dataScanGRPCClient) RunDataScan(ctx context.Context, req *dataplexpb.RunDataScanRequest, opts ...gax.CallOption) (*dataplexpb.RunDataScanResponse, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).RunDataScan[0:len((*c.CallOptions).RunDataScan):len((*c.CallOptions).RunDataScan)], opts...)
	var resp *dataplexpb.RunDataScanResponse
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataScanClient.RunDataScan(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *dataScanGRPCClient) GetDataScanJob(ctx context.Context, req *dataplexpb.GetDataScanJobRequest, opts ...gax.CallOption) (*dataplexpb.DataScanJob, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetDataScanJob[0:len((*c.CallOptions).GetDataScanJob):len((*c.CallOptions).GetDataScanJob)], opts...)
	var resp *dataplexpb.DataScanJob
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.dataScanClient.GetDataScanJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *dataScanGRPCClient) ListDataScanJobs(ctx context.Context, req *dataplexpb.ListDataScanJobsRequest, opts ...gax.CallOption) *DataScanJobIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListDataScanJobs[0:len((*c.CallOptions).ListDataScanJobs):len((*c.CallOptions).ListDataScanJobs)], opts...)
	it := &DataScanJobIterator{}
	req = proto.Clone(req).(*dataplexpb.ListDataScanJobsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*dataplexpb.DataScanJob, string, error) {
		resp := &dataplexpb.ListDataScanJobsResponse{}
		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.dataScanClient.ListDataScanJobs(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetDataScanJobs(), 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 *dataScanGRPCClient) GetLocation(ctx context.Context, req *locationpb.GetLocationRequest, opts ...gax.CallOption) (*locationpb.Location, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetLocation[0:len((*c.CallOptions).GetLocation):len((*c.CallOptions).GetLocation)], opts...)
	var resp *locationpb.Location
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.locationsClient.GetLocation(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *dataScanGRPCClient) ListLocations(ctx context.Context, req *locationpb.ListLocationsRequest, opts ...gax.CallOption) *LocationIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListLocations[0:len((*c.CallOptions).ListLocations):len((*c.CallOptions).ListLocations)], opts...)
	it := &LocationIterator{}
	req = proto.Clone(req).(*locationpb.ListLocationsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*locationpb.Location, string, error) {
		resp := &locationpb.ListLocationsResponse{}
		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.locationsClient.ListLocations(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetLocations(), 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 *dataScanGRPCClient) CancelOperation(ctx context.Context, req *longrunningpb.CancelOperationRequest, opts ...gax.CallOption) error {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).CancelOperation[0:len((*c.CallOptions).CancelOperation):len((*c.CallOptions).CancelOperation)], opts...)
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		_, err = c.operationsClient.CancelOperation(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	return err
}

func (c *dataScanGRPCClient) DeleteOperation(ctx context.Context, req *longrunningpb.DeleteOperationRequest, opts ...gax.CallOption) error {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).DeleteOperation[0:len((*c.CallOptions).DeleteOperation):len((*c.CallOptions).DeleteOperation)], opts...)
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		_, err = c.operationsClient.DeleteOperation(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	return err
}

func (c *dataScanGRPCClient) GetOperation(ctx context.Context, req *longrunningpb.GetOperationRequest, opts ...gax.CallOption) (*longrunningpb.Operation, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetOperation[0:len((*c.CallOptions).GetOperation):len((*c.CallOptions).GetOperation)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.operationsClient.GetOperation(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *dataScanGRPCClient) ListOperations(ctx context.Context, req *longrunningpb.ListOperationsRequest, opts ...gax.CallOption) *OperationIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListOperations[0:len((*c.CallOptions).ListOperations):len((*c.CallOptions).ListOperations)], opts...)
	it := &OperationIterator{}
	req = proto.Clone(req).(*longrunningpb.ListOperationsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*longrunningpb.Operation, string, error) {
		resp := &longrunningpb.ListOperationsResponse{}
		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.operationsClient.ListOperations(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

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

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

// CreateDataScanOperation returns a new CreateDataScanOperation from a given name.
// The name must be that of a previously created CreateDataScanOperation, possibly from a different process.
func (c *dataScanGRPCClient) CreateDataScanOperation(name string) *CreateDataScanOperation {
	return &CreateDataScanOperation{
		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 *CreateDataScanOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*dataplexpb.DataScan, error) {
	var resp dataplexpb.DataScan
	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 *CreateDataScanOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*dataplexpb.DataScan, error) {
	var resp dataplexpb.DataScan
	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 *CreateDataScanOperation) Metadata() (*dataplexpb.OperationMetadata, error) {
	var meta dataplexpb.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 *CreateDataScanOperation) 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 *CreateDataScanOperation) Name() string {
	return op.lro.Name()
}

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

// DeleteDataScanOperation returns a new DeleteDataScanOperation from a given name.
// The name must be that of a previously created DeleteDataScanOperation, possibly from a different process.
func (c *dataScanGRPCClient) DeleteDataScanOperation(name string) *DeleteDataScanOperation {
	return &DeleteDataScanOperation{
		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 *DeleteDataScanOperation) 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 *DeleteDataScanOperation) 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 *DeleteDataScanOperation) Metadata() (*dataplexpb.OperationMetadata, error) {
	var meta dataplexpb.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 *DeleteDataScanOperation) 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 *DeleteDataScanOperation) Name() string {
	return op.lro.Name()
}

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

// UpdateDataScanOperation returns a new UpdateDataScanOperation from a given name.
// The name must be that of a previously created UpdateDataScanOperation, possibly from a different process.
func (c *dataScanGRPCClient) UpdateDataScanOperation(name string) *UpdateDataScanOperation {
	return &UpdateDataScanOperation{
		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 *UpdateDataScanOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*dataplexpb.DataScan, error) {
	var resp dataplexpb.DataScan
	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 *UpdateDataScanOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*dataplexpb.DataScan, error) {
	var resp dataplexpb.DataScan
	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 *UpdateDataScanOperation) Metadata() (*dataplexpb.OperationMetadata, error) {
	var meta dataplexpb.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 *UpdateDataScanOperation) 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 *UpdateDataScanOperation) Name() string {
	return op.lro.Name()
}

// DataScanIterator manages a stream of *dataplexpb.DataScan.
type DataScanIterator struct {
	items    []*dataplexpb.DataScan
	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 []*dataplexpb.DataScan, nextPageToken string, err error)
}

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

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

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

// DataScanJobIterator manages a stream of *dataplexpb.DataScanJob.
type DataScanJobIterator struct {
	items    []*dataplexpb.DataScanJob
	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 []*dataplexpb.DataScanJob, nextPageToken string, err error)
}

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

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

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