| // Copyright 2019 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 gapic-generator. DO NOT EDIT. |
| |
| package dataproc |
| |
| import ( |
| "context" |
| "fmt" |
| "math" |
| "net/url" |
| "time" |
| |
| "cloud.google.com/go/longrunning" |
| lroauto "cloud.google.com/go/longrunning/autogen" |
| "github.com/golang/protobuf/proto" |
| gax "github.com/googleapis/gax-go/v2" |
| "google.golang.org/api/iterator" |
| "google.golang.org/api/option" |
| "google.golang.org/api/transport" |
| dataprocpb "google.golang.org/genproto/googleapis/cloud/dataproc/v1beta2" |
| longrunningpb "google.golang.org/genproto/googleapis/longrunning" |
| "google.golang.org/grpc" |
| "google.golang.org/grpc/codes" |
| "google.golang.org/grpc/metadata" |
| ) |
| |
| // WorkflowTemplateCallOptions contains the retry settings for each method of WorkflowTemplateClient. |
| type WorkflowTemplateCallOptions struct { |
| CreateWorkflowTemplate []gax.CallOption |
| GetWorkflowTemplate []gax.CallOption |
| InstantiateWorkflowTemplate []gax.CallOption |
| InstantiateInlineWorkflowTemplate []gax.CallOption |
| UpdateWorkflowTemplate []gax.CallOption |
| ListWorkflowTemplates []gax.CallOption |
| DeleteWorkflowTemplate []gax.CallOption |
| } |
| |
| func defaultWorkflowTemplateClientOptions() []option.ClientOption { |
| return []option.ClientOption{ |
| option.WithEndpoint("dataproc.googleapis.com:443"), |
| option.WithScopes(DefaultAuthScopes()...), |
| option.WithGRPCDialOption(grpc.WithDefaultCallOptions( |
| grpc.MaxCallRecvMsgSize(math.MaxInt32))), |
| } |
| } |
| |
| func defaultWorkflowTemplateCallOptions() *WorkflowTemplateCallOptions { |
| retry := map[[2]string][]gax.CallOption{ |
| {"default", "idempotent"}: { |
| gax.WithRetry(func() gax.Retryer { |
| return gax.OnCodes([]codes.Code{ |
| codes.DeadlineExceeded, |
| codes.Internal, |
| codes.Unavailable, |
| }, gax.Backoff{ |
| Initial: 100 * time.Millisecond, |
| Max: 60000 * time.Millisecond, |
| Multiplier: 1.3, |
| }) |
| }), |
| }, |
| {"default", "non_idempotent"}: { |
| gax.WithRetry(func() gax.Retryer { |
| return gax.OnCodes([]codes.Code{ |
| codes.Unavailable, |
| }, gax.Backoff{ |
| Initial: 100 * time.Millisecond, |
| Max: 60000 * time.Millisecond, |
| Multiplier: 1.3, |
| }) |
| }), |
| }, |
| } |
| return &WorkflowTemplateCallOptions{ |
| CreateWorkflowTemplate: retry[[2]string{"default", "non_idempotent"}], |
| GetWorkflowTemplate: retry[[2]string{"default", "idempotent"}], |
| InstantiateWorkflowTemplate: retry[[2]string{"default", "non_idempotent"}], |
| InstantiateInlineWorkflowTemplate: retry[[2]string{"default", "non_idempotent"}], |
| UpdateWorkflowTemplate: retry[[2]string{"default", "non_idempotent"}], |
| ListWorkflowTemplates: retry[[2]string{"default", "idempotent"}], |
| DeleteWorkflowTemplate: retry[[2]string{"default", "non_idempotent"}], |
| } |
| } |
| |
| // WorkflowTemplateClient is a client for interacting with Google Cloud Dataproc API. |
| // |
| // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls. |
| type WorkflowTemplateClient struct { |
| // The connection to the service. |
| conn *grpc.ClientConn |
| |
| // The gRPC API client. |
| workflowTemplateClient dataprocpb.WorkflowTemplateServiceClient |
| |
| // LROClient is used internally to handle longrunning operations. |
| // It is exposed so that its CallOptions can be modified if required. |
| // Users should not Close this client. |
| LROClient *lroauto.OperationsClient |
| |
| // The call options for this service. |
| CallOptions *WorkflowTemplateCallOptions |
| |
| // The x-goog-* metadata to be sent with each request. |
| xGoogMetadata metadata.MD |
| } |
| |
| // NewWorkflowTemplateClient creates a new workflow template service client. |
| // |
| // The API interface for managing Workflow Templates in the |
| // Cloud Dataproc API. |
| func NewWorkflowTemplateClient(ctx context.Context, opts ...option.ClientOption) (*WorkflowTemplateClient, error) { |
| conn, err := transport.DialGRPC(ctx, append(defaultWorkflowTemplateClientOptions(), opts...)...) |
| if err != nil { |
| return nil, err |
| } |
| c := &WorkflowTemplateClient{ |
| conn: conn, |
| CallOptions: defaultWorkflowTemplateCallOptions(), |
| |
| workflowTemplateClient: dataprocpb.NewWorkflowTemplateServiceClient(conn), |
| } |
| c.setGoogleClientInfo() |
| |
| c.LROClient, err = lroauto.NewOperationsClient(ctx, option.WithGRPCConn(conn)) |
| if err != nil { |
| // This error "should not happen", since we are just reusing old connection |
| // and never actually need to dial. |
| // If this does happen, we could leak conn. However, we cannot close conn: |
| // If the user invoked the function with option.WithGRPCConn, |
| // we would close a connection that's still in use. |
| // TODO(pongad): investigate error conditions. |
| return nil, err |
| } |
| return c, nil |
| } |
| |
| // Connection returns the client's connection to the API service. |
| func (c *WorkflowTemplateClient) Connection() *grpc.ClientConn { |
| return c.conn |
| } |
| |
| // Close closes the connection to the API service. The user should invoke this when |
| // the client is no longer required. |
| func (c *WorkflowTemplateClient) Close() error { |
| return c.conn.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 *WorkflowTemplateClient) 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...)) |
| } |
| |
| // CreateWorkflowTemplate creates new workflow template. |
| func (c *WorkflowTemplateClient) CreateWorkflowTemplate(ctx context.Context, req *dataprocpb.CreateWorkflowTemplateRequest, opts ...gax.CallOption) (*dataprocpb.WorkflowTemplate, error) { |
| 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.CreateWorkflowTemplate[0:len(c.CallOptions.CreateWorkflowTemplate):len(c.CallOptions.CreateWorkflowTemplate)], opts...) |
| var resp *dataprocpb.WorkflowTemplate |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.workflowTemplateClient.CreateWorkflowTemplate(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return resp, nil |
| } |
| |
| // GetWorkflowTemplate retrieves the latest workflow template. |
| // |
| // Can retrieve previously instantiated template by specifying optional |
| // version parameter. |
| func (c *WorkflowTemplateClient) GetWorkflowTemplate(ctx context.Context, req *dataprocpb.GetWorkflowTemplateRequest, opts ...gax.CallOption) (*dataprocpb.WorkflowTemplate, error) { |
| 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.GetWorkflowTemplate[0:len(c.CallOptions.GetWorkflowTemplate):len(c.CallOptions.GetWorkflowTemplate)], opts...) |
| var resp *dataprocpb.WorkflowTemplate |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.workflowTemplateClient.GetWorkflowTemplate(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return resp, nil |
| } |
| |
| // InstantiateWorkflowTemplate instantiates a template and begins execution. |
| // |
| // The returned Operation can be used to track execution of |
| // workflow by polling |
| // [operations.get][google.longrunning.Operations.GetOperation]. |
| // The Operation will complete when entire workflow is finished. |
| // |
| // The running workflow can be aborted via |
| // [operations.cancel][google.longrunning.Operations.CancelOperation]. |
| // This will cause any inflight jobs to be cancelled and workflow-owned |
| // clusters to be deleted. |
| // |
| // The [Operation.metadata][google.longrunning.Operation.metadata] will be |
| // [WorkflowMetadata][google.cloud.dataproc.v1beta2.WorkflowMetadata]. |
| // |
| // On successful completion, |
| // [Operation.response][google.longrunning.Operation.response] will be |
| // [Empty][google.protobuf.Empty]. |
| func (c *WorkflowTemplateClient) InstantiateWorkflowTemplate(ctx context.Context, req *dataprocpb.InstantiateWorkflowTemplateRequest, opts ...gax.CallOption) (*InstantiateWorkflowTemplateOperation, error) { |
| 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.InstantiateWorkflowTemplate[0:len(c.CallOptions.InstantiateWorkflowTemplate):len(c.CallOptions.InstantiateWorkflowTemplate)], opts...) |
| var resp *longrunningpb.Operation |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.workflowTemplateClient.InstantiateWorkflowTemplate(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return &InstantiateWorkflowTemplateOperation{ |
| lro: longrunning.InternalNewOperation(c.LROClient, resp), |
| }, nil |
| } |
| |
| // InstantiateInlineWorkflowTemplate instantiates a template and begins execution. |
| // |
| // This method is equivalent to executing the sequence |
| // [CreateWorkflowTemplate][google.cloud.dataproc.v1beta2.WorkflowTemplateService.CreateWorkflowTemplate], [InstantiateWorkflowTemplate][google.cloud.dataproc.v1beta2.WorkflowTemplateService.InstantiateWorkflowTemplate], |
| // [DeleteWorkflowTemplate][google.cloud.dataproc.v1beta2.WorkflowTemplateService.DeleteWorkflowTemplate]. |
| // |
| // The returned Operation can be used to track execution of |
| // workflow by polling |
| // [operations.get][google.longrunning.Operations.GetOperation]. |
| // The Operation will complete when entire workflow is finished. |
| // |
| // The running workflow can be aborted via |
| // [operations.cancel][google.longrunning.Operations.CancelOperation]. |
| // This will cause any inflight jobs to be cancelled and workflow-owned |
| // clusters to be deleted. |
| // |
| // The [Operation.metadata][google.longrunning.Operation.metadata] will be |
| // [WorkflowMetadata][google.cloud.dataproc.v1beta2.WorkflowMetadata]. |
| // |
| // On successful completion, |
| // [Operation.response][google.longrunning.Operation.response] will be |
| // [Empty][google.protobuf.Empty]. |
| func (c *WorkflowTemplateClient) InstantiateInlineWorkflowTemplate(ctx context.Context, req *dataprocpb.InstantiateInlineWorkflowTemplateRequest, opts ...gax.CallOption) (*InstantiateInlineWorkflowTemplateOperation, error) { |
| 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.InstantiateInlineWorkflowTemplate[0:len(c.CallOptions.InstantiateInlineWorkflowTemplate):len(c.CallOptions.InstantiateInlineWorkflowTemplate)], opts...) |
| var resp *longrunningpb.Operation |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.workflowTemplateClient.InstantiateInlineWorkflowTemplate(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return &InstantiateInlineWorkflowTemplateOperation{ |
| lro: longrunning.InternalNewOperation(c.LROClient, resp), |
| }, nil |
| } |
| |
| // UpdateWorkflowTemplate updates (replaces) workflow template. The updated template |
| // must contain version that matches the current server version. |
| func (c *WorkflowTemplateClient) UpdateWorkflowTemplate(ctx context.Context, req *dataprocpb.UpdateWorkflowTemplateRequest, opts ...gax.CallOption) (*dataprocpb.WorkflowTemplate, error) { |
| md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "template.name", url.QueryEscape(req.GetTemplate().GetName()))) |
| ctx = insertMetadata(ctx, c.xGoogMetadata, md) |
| opts = append(c.CallOptions.UpdateWorkflowTemplate[0:len(c.CallOptions.UpdateWorkflowTemplate):len(c.CallOptions.UpdateWorkflowTemplate)], opts...) |
| var resp *dataprocpb.WorkflowTemplate |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.workflowTemplateClient.UpdateWorkflowTemplate(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return resp, nil |
| } |
| |
| // ListWorkflowTemplates lists workflows that match the specified filter in the request. |
| func (c *WorkflowTemplateClient) ListWorkflowTemplates(ctx context.Context, req *dataprocpb.ListWorkflowTemplatesRequest, opts ...gax.CallOption) *WorkflowTemplateIterator { |
| 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.ListWorkflowTemplates[0:len(c.CallOptions.ListWorkflowTemplates):len(c.CallOptions.ListWorkflowTemplates)], opts...) |
| it := &WorkflowTemplateIterator{} |
| req = proto.Clone(req).(*dataprocpb.ListWorkflowTemplatesRequest) |
| it.InternalFetch = func(pageSize int, pageToken string) ([]*dataprocpb.WorkflowTemplate, string, error) { |
| var resp *dataprocpb.ListWorkflowTemplatesResponse |
| req.PageToken = pageToken |
| if pageSize > math.MaxInt32 { |
| req.PageSize = math.MaxInt32 |
| } else { |
| req.PageSize = int32(pageSize) |
| } |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.workflowTemplateClient.ListWorkflowTemplates(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, "", err |
| } |
| return resp.Templates, resp.NextPageToken, 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.PageSize) |
| it.pageInfo.Token = req.PageToken |
| return it |
| } |
| |
| // DeleteWorkflowTemplate deletes a workflow template. It does not cancel in-progress workflows. |
| func (c *WorkflowTemplateClient) DeleteWorkflowTemplate(ctx context.Context, req *dataprocpb.DeleteWorkflowTemplateRequest, opts ...gax.CallOption) error { |
| 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.DeleteWorkflowTemplate[0:len(c.CallOptions.DeleteWorkflowTemplate):len(c.CallOptions.DeleteWorkflowTemplate)], opts...) |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| _, err = c.workflowTemplateClient.DeleteWorkflowTemplate(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| return err |
| } |
| |
| // WorkflowTemplateIterator manages a stream of *dataprocpb.WorkflowTemplate. |
| type WorkflowTemplateIterator struct { |
| items []*dataprocpb.WorkflowTemplate |
| pageInfo *iterator.PageInfo |
| nextFunc func() error |
| |
| // 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 []*dataprocpb.WorkflowTemplate, nextPageToken string, err error) |
| } |
| |
| // PageInfo supports pagination. See the google.golang.org/api/iterator package for details. |
| func (it *WorkflowTemplateIterator) 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 *WorkflowTemplateIterator) Next() (*dataprocpb.WorkflowTemplate, error) { |
| var item *dataprocpb.WorkflowTemplate |
| if err := it.nextFunc(); err != nil { |
| return item, err |
| } |
| item = it.items[0] |
| it.items = it.items[1:] |
| return item, nil |
| } |
| |
| func (it *WorkflowTemplateIterator) bufLen() int { |
| return len(it.items) |
| } |
| |
| func (it *WorkflowTemplateIterator) takeBuf() interface{} { |
| b := it.items |
| it.items = nil |
| return b |
| } |
| |
| // InstantiateInlineWorkflowTemplateOperation manages a long-running operation from InstantiateInlineWorkflowTemplate. |
| type InstantiateInlineWorkflowTemplateOperation struct { |
| lro *longrunning.Operation |
| } |
| |
| // InstantiateInlineWorkflowTemplateOperation returns a new InstantiateInlineWorkflowTemplateOperation from a given name. |
| // The name must be that of a previously created InstantiateInlineWorkflowTemplateOperation, possibly from a different process. |
| func (c *WorkflowTemplateClient) InstantiateInlineWorkflowTemplateOperation(name string) *InstantiateInlineWorkflowTemplateOperation { |
| return &InstantiateInlineWorkflowTemplateOperation{ |
| lro: longrunning.InternalNewOperation(c.LROClient, &longrunningpb.Operation{Name: name}), |
| } |
| } |
| |
| // Wait blocks until the long-running operation is completed, returning any error encountered. |
| // |
| // See documentation of Poll for error-handling information. |
| func (op *InstantiateInlineWorkflowTemplateOperation) Wait(ctx context.Context, opts ...gax.CallOption) error { |
| return op.lro.WaitWithInterval(ctx, nil, 10000*time.Millisecond, 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. |
| func (op *InstantiateInlineWorkflowTemplateOperation) 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 *InstantiateInlineWorkflowTemplateOperation) Metadata() (*dataprocpb.WorkflowMetadata, error) { |
| var meta dataprocpb.WorkflowMetadata |
| 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 *InstantiateInlineWorkflowTemplateOperation) 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 *InstantiateInlineWorkflowTemplateOperation) Name() string { |
| return op.lro.Name() |
| } |
| |
| // InstantiateWorkflowTemplateOperation manages a long-running operation from InstantiateWorkflowTemplate. |
| type InstantiateWorkflowTemplateOperation struct { |
| lro *longrunning.Operation |
| } |
| |
| // InstantiateWorkflowTemplateOperation returns a new InstantiateWorkflowTemplateOperation from a given name. |
| // The name must be that of a previously created InstantiateWorkflowTemplateOperation, possibly from a different process. |
| func (c *WorkflowTemplateClient) InstantiateWorkflowTemplateOperation(name string) *InstantiateWorkflowTemplateOperation { |
| return &InstantiateWorkflowTemplateOperation{ |
| lro: longrunning.InternalNewOperation(c.LROClient, &longrunningpb.Operation{Name: name}), |
| } |
| } |
| |
| // Wait blocks until the long-running operation is completed, returning any error encountered. |
| // |
| // See documentation of Poll for error-handling information. |
| func (op *InstantiateWorkflowTemplateOperation) Wait(ctx context.Context, opts ...gax.CallOption) error { |
| return op.lro.WaitWithInterval(ctx, nil, 10000*time.Millisecond, 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. |
| func (op *InstantiateWorkflowTemplateOperation) 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 *InstantiateWorkflowTemplateOperation) Metadata() (*dataprocpb.WorkflowMetadata, error) { |
| var meta dataprocpb.WorkflowMetadata |
| 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 *InstantiateWorkflowTemplateOperation) 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 *InstantiateWorkflowTemplateOperation) Name() string { |
| return op.lro.Name() |
| } |
