| // Copyright 2022 Google LLC |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| // Code generated by protoc-gen-go_gapic. DO NOT EDIT. |
| |
| package migration |
| |
| import ( |
| "context" |
| "fmt" |
| "math" |
| "net/url" |
| "time" |
| |
| 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" |
| migrationpb "google.golang.org/genproto/googleapis/cloud/bigquery/migration/v2alpha" |
| "google.golang.org/grpc" |
| "google.golang.org/grpc/codes" |
| "google.golang.org/grpc/metadata" |
| "google.golang.org/protobuf/proto" |
| ) |
| |
| var newClientHook clientHook |
| |
| // CallOptions contains the retry settings for each method of Client. |
| type CallOptions struct { |
| CreateMigrationWorkflow []gax.CallOption |
| GetMigrationWorkflow []gax.CallOption |
| ListMigrationWorkflows []gax.CallOption |
| DeleteMigrationWorkflow []gax.CallOption |
| StartMigrationWorkflow []gax.CallOption |
| GetMigrationSubtask []gax.CallOption |
| ListMigrationSubtasks []gax.CallOption |
| } |
| |
| func defaultGRPCClientOptions() []option.ClientOption { |
| return []option.ClientOption{ |
| internaloption.WithDefaultEndpoint("bigquerymigration.googleapis.com:443"), |
| internaloption.WithDefaultMTLSEndpoint("bigquerymigration.mtls.googleapis.com:443"), |
| internaloption.WithDefaultAudience("https://bigquerymigration.googleapis.com/"), |
| internaloption.WithDefaultScopes(DefaultAuthScopes()...), |
| internaloption.EnableJwtWithScope(), |
| option.WithGRPCDialOption(grpc.WithDefaultCallOptions( |
| grpc.MaxCallRecvMsgSize(math.MaxInt32))), |
| } |
| } |
| |
| func defaultCallOptions() *CallOptions { |
| return &CallOptions{ |
| CreateMigrationWorkflow: []gax.CallOption{}, |
| GetMigrationWorkflow: []gax.CallOption{ |
| gax.WithRetry(func() gax.Retryer { |
| return gax.OnCodes([]codes.Code{ |
| codes.Unavailable, |
| }, gax.Backoff{ |
| Initial: 1000 * time.Millisecond, |
| Max: 10000 * time.Millisecond, |
| Multiplier: 1.30, |
| }) |
| }), |
| }, |
| ListMigrationWorkflows: []gax.CallOption{ |
| gax.WithRetry(func() gax.Retryer { |
| return gax.OnCodes([]codes.Code{ |
| codes.Unavailable, |
| }, gax.Backoff{ |
| Initial: 1000 * time.Millisecond, |
| Max: 10000 * time.Millisecond, |
| Multiplier: 1.30, |
| }) |
| }), |
| }, |
| DeleteMigrationWorkflow: []gax.CallOption{}, |
| StartMigrationWorkflow: []gax.CallOption{ |
| gax.WithRetry(func() gax.Retryer { |
| return gax.OnCodes([]codes.Code{ |
| codes.Unavailable, |
| }, gax.Backoff{ |
| Initial: 1000 * time.Millisecond, |
| Max: 10000 * time.Millisecond, |
| Multiplier: 1.30, |
| }) |
| }), |
| }, |
| GetMigrationSubtask: []gax.CallOption{ |
| gax.WithRetry(func() gax.Retryer { |
| return gax.OnCodes([]codes.Code{ |
| codes.Unavailable, |
| }, gax.Backoff{ |
| Initial: 1000 * time.Millisecond, |
| Max: 10000 * time.Millisecond, |
| Multiplier: 1.30, |
| }) |
| }), |
| }, |
| ListMigrationSubtasks: []gax.CallOption{ |
| gax.WithRetry(func() gax.Retryer { |
| return gax.OnCodes([]codes.Code{ |
| codes.Unavailable, |
| }, gax.Backoff{ |
| Initial: 1000 * time.Millisecond, |
| Max: 10000 * time.Millisecond, |
| Multiplier: 1.30, |
| }) |
| }), |
| }, |
| } |
| } |
| |
| // internalClient is an interface that defines the methods availaible from BigQuery Migration API. |
| type internalClient interface { |
| Close() error |
| setGoogleClientInfo(...string) |
| Connection() *grpc.ClientConn |
| CreateMigrationWorkflow(context.Context, *migrationpb.CreateMigrationWorkflowRequest, ...gax.CallOption) (*migrationpb.MigrationWorkflow, error) |
| GetMigrationWorkflow(context.Context, *migrationpb.GetMigrationWorkflowRequest, ...gax.CallOption) (*migrationpb.MigrationWorkflow, error) |
| ListMigrationWorkflows(context.Context, *migrationpb.ListMigrationWorkflowsRequest, ...gax.CallOption) *MigrationWorkflowIterator |
| DeleteMigrationWorkflow(context.Context, *migrationpb.DeleteMigrationWorkflowRequest, ...gax.CallOption) error |
| StartMigrationWorkflow(context.Context, *migrationpb.StartMigrationWorkflowRequest, ...gax.CallOption) error |
| GetMigrationSubtask(context.Context, *migrationpb.GetMigrationSubtaskRequest, ...gax.CallOption) (*migrationpb.MigrationSubtask, error) |
| ListMigrationSubtasks(context.Context, *migrationpb.ListMigrationSubtasksRequest, ...gax.CallOption) *MigrationSubtaskIterator |
| } |
| |
| // Client is a client for interacting with BigQuery Migration API. |
| // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls. |
| // |
| // Service to handle EDW migrations. |
| type Client struct { |
| // The internal transport-dependent client. |
| internalClient internalClient |
| |
| // The call options for this service. |
| CallOptions *CallOptions |
| } |
| |
| // 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 *Client) 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 *Client) setGoogleClientInfo(keyval ...string) { |
| c.internalClient.setGoogleClientInfo(keyval...) |
| } |
| |
| // Connection returns a connection to the API service. |
| // |
| // Deprecated. |
| func (c *Client) Connection() *grpc.ClientConn { |
| return c.internalClient.Connection() |
| } |
| |
| // CreateMigrationWorkflow creates a migration workflow. |
| func (c *Client) CreateMigrationWorkflow(ctx context.Context, req *migrationpb.CreateMigrationWorkflowRequest, opts ...gax.CallOption) (*migrationpb.MigrationWorkflow, error) { |
| return c.internalClient.CreateMigrationWorkflow(ctx, req, opts...) |
| } |
| |
| // GetMigrationWorkflow gets a previously created migration workflow. |
| func (c *Client) GetMigrationWorkflow(ctx context.Context, req *migrationpb.GetMigrationWorkflowRequest, opts ...gax.CallOption) (*migrationpb.MigrationWorkflow, error) { |
| return c.internalClient.GetMigrationWorkflow(ctx, req, opts...) |
| } |
| |
| // ListMigrationWorkflows lists previously created migration workflow. |
| func (c *Client) ListMigrationWorkflows(ctx context.Context, req *migrationpb.ListMigrationWorkflowsRequest, opts ...gax.CallOption) *MigrationWorkflowIterator { |
| return c.internalClient.ListMigrationWorkflows(ctx, req, opts...) |
| } |
| |
| // DeleteMigrationWorkflow deletes a migration workflow by name. |
| func (c *Client) DeleteMigrationWorkflow(ctx context.Context, req *migrationpb.DeleteMigrationWorkflowRequest, opts ...gax.CallOption) error { |
| return c.internalClient.DeleteMigrationWorkflow(ctx, req, opts...) |
| } |
| |
| // StartMigrationWorkflow starts a previously created migration workflow. I.e., the state transitions |
| // from DRAFT to RUNNING. This is a no-op if the state is already RUNNING. |
| // An error will be signaled if the state is anything other than DRAFT or |
| // RUNNING. |
| func (c *Client) StartMigrationWorkflow(ctx context.Context, req *migrationpb.StartMigrationWorkflowRequest, opts ...gax.CallOption) error { |
| return c.internalClient.StartMigrationWorkflow(ctx, req, opts...) |
| } |
| |
| // GetMigrationSubtask gets a previously created migration subtask. |
| func (c *Client) GetMigrationSubtask(ctx context.Context, req *migrationpb.GetMigrationSubtaskRequest, opts ...gax.CallOption) (*migrationpb.MigrationSubtask, error) { |
| return c.internalClient.GetMigrationSubtask(ctx, req, opts...) |
| } |
| |
| // ListMigrationSubtasks lists previously created migration subtasks. |
| func (c *Client) ListMigrationSubtasks(ctx context.Context, req *migrationpb.ListMigrationSubtasksRequest, opts ...gax.CallOption) *MigrationSubtaskIterator { |
| return c.internalClient.ListMigrationSubtasks(ctx, req, opts...) |
| } |
| |
| // gRPCClient is a client for interacting with BigQuery Migration API over gRPC transport. |
| // |
| // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls. |
| type gRPCClient 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 Client |
| CallOptions **CallOptions |
| |
| // The gRPC API client. |
| client migrationpb.MigrationServiceClient |
| |
| // The x-goog-* metadata to be sent with each request. |
| xGoogMetadata metadata.MD |
| } |
| |
| // NewClient creates a new migration service client based on gRPC. |
| // The returned client must be Closed when it is done being used to clean up its underlying connections. |
| // |
| // Service to handle EDW migrations. |
| func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) { |
| clientOpts := defaultGRPCClientOptions() |
| if newClientHook != nil { |
| hookOpts, err := newClientHook(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 := Client{CallOptions: defaultCallOptions()} |
| |
| c := &gRPCClient{ |
| connPool: connPool, |
| disableDeadlines: disableDeadlines, |
| client: migrationpb.NewMigrationServiceClient(connPool), |
| CallOptions: &client.CallOptions, |
| } |
| c.setGoogleClientInfo() |
| |
| client.internalClient = c |
| |
| return &client, nil |
| } |
| |
| // Connection returns a connection to the API service. |
| // |
| // Deprecated. |
| func (c *gRPCClient) 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 *gRPCClient) setGoogleClientInfo(keyval ...string) { |
| kv := append([]string{"gl-go", versionGo()}, keyval...) |
| kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "grpc", grpc.Version) |
| c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...)) |
| } |
| |
| // Close closes the connection to the API service. The user should invoke this when |
| // the client is no longer required. |
| func (c *gRPCClient) Close() error { |
| return c.connPool.Close() |
| } |
| |
| func (c *gRPCClient) CreateMigrationWorkflow(ctx context.Context, req *migrationpb.CreateMigrationWorkflowRequest, opts ...gax.CallOption) (*migrationpb.MigrationWorkflow, 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).CreateMigrationWorkflow[0:len((*c.CallOptions).CreateMigrationWorkflow):len((*c.CallOptions).CreateMigrationWorkflow)], opts...) |
| var resp *migrationpb.MigrationWorkflow |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.client.CreateMigrationWorkflow(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return resp, nil |
| } |
| |
| func (c *gRPCClient) GetMigrationWorkflow(ctx context.Context, req *migrationpb.GetMigrationWorkflowRequest, opts ...gax.CallOption) (*migrationpb.MigrationWorkflow, error) { |
| if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines { |
| cctx, cancel := context.WithTimeout(ctx, 120000*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).GetMigrationWorkflow[0:len((*c.CallOptions).GetMigrationWorkflow):len((*c.CallOptions).GetMigrationWorkflow)], opts...) |
| var resp *migrationpb.MigrationWorkflow |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.client.GetMigrationWorkflow(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return resp, nil |
| } |
| |
| func (c *gRPCClient) ListMigrationWorkflows(ctx context.Context, req *migrationpb.ListMigrationWorkflowsRequest, opts ...gax.CallOption) *MigrationWorkflowIterator { |
| 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).ListMigrationWorkflows[0:len((*c.CallOptions).ListMigrationWorkflows):len((*c.CallOptions).ListMigrationWorkflows)], opts...) |
| it := &MigrationWorkflowIterator{} |
| req = proto.Clone(req).(*migrationpb.ListMigrationWorkflowsRequest) |
| it.InternalFetch = func(pageSize int, pageToken string) ([]*migrationpb.MigrationWorkflow, string, error) { |
| resp := &migrationpb.ListMigrationWorkflowsResponse{} |
| 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.client.ListMigrationWorkflows(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, "", err |
| } |
| |
| it.Response = resp |
| return resp.GetMigrationWorkflows(), 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 *gRPCClient) DeleteMigrationWorkflow(ctx context.Context, req *migrationpb.DeleteMigrationWorkflowRequest, opts ...gax.CallOption) 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).DeleteMigrationWorkflow[0:len((*c.CallOptions).DeleteMigrationWorkflow):len((*c.CallOptions).DeleteMigrationWorkflow)], opts...) |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| _, err = c.client.DeleteMigrationWorkflow(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| return err |
| } |
| |
| func (c *gRPCClient) StartMigrationWorkflow(ctx context.Context, req *migrationpb.StartMigrationWorkflowRequest, opts ...gax.CallOption) error { |
| if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines { |
| cctx, cancel := context.WithTimeout(ctx, 120000*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).StartMigrationWorkflow[0:len((*c.CallOptions).StartMigrationWorkflow):len((*c.CallOptions).StartMigrationWorkflow)], opts...) |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| _, err = c.client.StartMigrationWorkflow(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| return err |
| } |
| |
| func (c *gRPCClient) GetMigrationSubtask(ctx context.Context, req *migrationpb.GetMigrationSubtaskRequest, opts ...gax.CallOption) (*migrationpb.MigrationSubtask, error) { |
| if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines { |
| cctx, cancel := context.WithTimeout(ctx, 120000*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).GetMigrationSubtask[0:len((*c.CallOptions).GetMigrationSubtask):len((*c.CallOptions).GetMigrationSubtask)], opts...) |
| var resp *migrationpb.MigrationSubtask |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.client.GetMigrationSubtask(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return resp, nil |
| } |
| |
| func (c *gRPCClient) ListMigrationSubtasks(ctx context.Context, req *migrationpb.ListMigrationSubtasksRequest, opts ...gax.CallOption) *MigrationSubtaskIterator { |
| 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).ListMigrationSubtasks[0:len((*c.CallOptions).ListMigrationSubtasks):len((*c.CallOptions).ListMigrationSubtasks)], opts...) |
| it := &MigrationSubtaskIterator{} |
| req = proto.Clone(req).(*migrationpb.ListMigrationSubtasksRequest) |
| it.InternalFetch = func(pageSize int, pageToken string) ([]*migrationpb.MigrationSubtask, string, error) { |
| resp := &migrationpb.ListMigrationSubtasksResponse{} |
| 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.client.ListMigrationSubtasks(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, "", err |
| } |
| |
| it.Response = resp |
| return resp.GetMigrationSubtasks(), 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 |
| } |
| |
| // MigrationSubtaskIterator manages a stream of *migrationpb.MigrationSubtask. |
| type MigrationSubtaskIterator struct { |
| items []*migrationpb.MigrationSubtask |
| 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 []*migrationpb.MigrationSubtask, nextPageToken string, err error) |
| } |
| |
| // PageInfo supports pagination. See the google.golang.org/api/iterator package for details. |
| func (it *MigrationSubtaskIterator) 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 *MigrationSubtaskIterator) Next() (*migrationpb.MigrationSubtask, error) { |
| var item *migrationpb.MigrationSubtask |
| if err := it.nextFunc(); err != nil { |
| return item, err |
| } |
| item = it.items[0] |
| it.items = it.items[1:] |
| return item, nil |
| } |
| |
| func (it *MigrationSubtaskIterator) bufLen() int { |
| return len(it.items) |
| } |
| |
| func (it *MigrationSubtaskIterator) takeBuf() interface{} { |
| b := it.items |
| it.items = nil |
| return b |
| } |
| |
| // MigrationWorkflowIterator manages a stream of *migrationpb.MigrationWorkflow. |
| type MigrationWorkflowIterator struct { |
| items []*migrationpb.MigrationWorkflow |
| 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 []*migrationpb.MigrationWorkflow, nextPageToken string, err error) |
| } |
| |
| // PageInfo supports pagination. See the google.golang.org/api/iterator package for details. |
| func (it *MigrationWorkflowIterator) 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 *MigrationWorkflowIterator) Next() (*migrationpb.MigrationWorkflow, error) { |
| var item *migrationpb.MigrationWorkflow |
| if err := it.nextFunc(); err != nil { |
| return item, err |
| } |
| item = it.items[0] |
| it.items = it.items[1:] |
| return item, nil |
| } |
| |
| func (it *MigrationWorkflowIterator) bufLen() int { |
| return len(it.items) |
| } |
| |
| func (it *MigrationWorkflowIterator) takeBuf() interface{} { |
| b := it.items |
| it.items = nil |
| return b |
| } |
