| // 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 documentai |
| |
| 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/option" |
| "google.golang.org/api/option/internaloption" |
| gtransport "google.golang.org/api/transport/grpc" |
| documentaipb "google.golang.org/genproto/googleapis/cloud/documentai/v1" |
| longrunningpb "google.golang.org/genproto/googleapis/longrunning" |
| "google.golang.org/grpc" |
| "google.golang.org/grpc/codes" |
| "google.golang.org/grpc/metadata" |
| ) |
| |
| var newDocumentProcessorClientHook clientHook |
| |
| // DocumentProcessorCallOptions contains the retry settings for each method of DocumentProcessorClient. |
| type DocumentProcessorCallOptions struct { |
| ProcessDocument []gax.CallOption |
| BatchProcessDocuments []gax.CallOption |
| ReviewDocument []gax.CallOption |
| } |
| |
| func defaultDocumentProcessorGRPCClientOptions() []option.ClientOption { |
| return []option.ClientOption{ |
| internaloption.WithDefaultEndpoint("documentai.googleapis.com:443"), |
| internaloption.WithDefaultMTLSEndpoint("documentai.mtls.googleapis.com:443"), |
| internaloption.WithDefaultAudience("https://documentai.googleapis.com/"), |
| internaloption.WithDefaultScopes(DefaultAuthScopes()...), |
| internaloption.EnableJwtWithScope(), |
| option.WithGRPCDialOption(grpc.WithDisableServiceConfig()), |
| option.WithGRPCDialOption(grpc.WithDefaultCallOptions( |
| grpc.MaxCallRecvMsgSize(math.MaxInt32))), |
| } |
| } |
| |
| func defaultDocumentProcessorCallOptions() *DocumentProcessorCallOptions { |
| return &DocumentProcessorCallOptions{ |
| ProcessDocument: []gax.CallOption{ |
| gax.WithRetry(func() gax.Retryer { |
| return gax.OnCodes([]codes.Code{ |
| codes.DeadlineExceeded, |
| codes.Unavailable, |
| }, gax.Backoff{ |
| Initial: 100 * time.Millisecond, |
| Max: 60000 * time.Millisecond, |
| Multiplier: 1.30, |
| }) |
| }), |
| }, |
| BatchProcessDocuments: []gax.CallOption{ |
| gax.WithRetry(func() gax.Retryer { |
| return gax.OnCodes([]codes.Code{ |
| codes.DeadlineExceeded, |
| codes.Unavailable, |
| }, gax.Backoff{ |
| Initial: 100 * time.Millisecond, |
| Max: 60000 * time.Millisecond, |
| Multiplier: 1.30, |
| }) |
| }), |
| }, |
| ReviewDocument: []gax.CallOption{ |
| gax.WithRetry(func() gax.Retryer { |
| return gax.OnCodes([]codes.Code{ |
| codes.DeadlineExceeded, |
| codes.Unavailable, |
| }, gax.Backoff{ |
| Initial: 100 * time.Millisecond, |
| Max: 60000 * time.Millisecond, |
| Multiplier: 1.30, |
| }) |
| }), |
| }, |
| } |
| } |
| |
| // internalDocumentProcessorClient is an interface that defines the methods availaible from Cloud Document AI API. |
| type internalDocumentProcessorClient interface { |
| Close() error |
| setGoogleClientInfo(...string) |
| Connection() *grpc.ClientConn |
| ProcessDocument(context.Context, *documentaipb.ProcessRequest, ...gax.CallOption) (*documentaipb.ProcessResponse, error) |
| BatchProcessDocuments(context.Context, *documentaipb.BatchProcessRequest, ...gax.CallOption) (*BatchProcessDocumentsOperation, error) |
| BatchProcessDocumentsOperation(name string) *BatchProcessDocumentsOperation |
| ReviewDocument(context.Context, *documentaipb.ReviewDocumentRequest, ...gax.CallOption) (*ReviewDocumentOperation, error) |
| ReviewDocumentOperation(name string) *ReviewDocumentOperation |
| } |
| |
| // DocumentProcessorClient is a client for interacting with Cloud Document AI API. |
| // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls. |
| // |
| // Service to call Cloud DocumentAI to process documents according to the |
| // processor’s definition. Processors are built using state-of-the-art Google |
| // AI such as natural language, computer vision, and translation to extract |
| // structured information from unstructured or semi-structured documents. |
| type DocumentProcessorClient struct { |
| // The internal transport-dependent client. |
| internalClient internalDocumentProcessorClient |
| |
| // The call options for this service. |
| CallOptions *DocumentProcessorCallOptions |
| |
| // 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 *DocumentProcessorClient) 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 *DocumentProcessorClient) setGoogleClientInfo(keyval ...string) { |
| c.internalClient.setGoogleClientInfo(keyval...) |
| } |
| |
| // Connection returns a connection to the API service. |
| // |
| // Deprecated. |
| func (c *DocumentProcessorClient) Connection() *grpc.ClientConn { |
| return c.internalClient.Connection() |
| } |
| |
| // ProcessDocument processes a single document. |
| func (c *DocumentProcessorClient) ProcessDocument(ctx context.Context, req *documentaipb.ProcessRequest, opts ...gax.CallOption) (*documentaipb.ProcessResponse, error) { |
| return c.internalClient.ProcessDocument(ctx, req, opts...) |
| } |
| |
| // BatchProcessDocuments lRO endpoint to batch process many documents. The output is written |
| // to Cloud Storage as JSON in the [Document] format. |
| func (c *DocumentProcessorClient) BatchProcessDocuments(ctx context.Context, req *documentaipb.BatchProcessRequest, opts ...gax.CallOption) (*BatchProcessDocumentsOperation, error) { |
| return c.internalClient.BatchProcessDocuments(ctx, req, opts...) |
| } |
| |
| // BatchProcessDocumentsOperation returns a new BatchProcessDocumentsOperation from a given name. |
| // The name must be that of a previously created BatchProcessDocumentsOperation, possibly from a different process. |
| func (c *DocumentProcessorClient) BatchProcessDocumentsOperation(name string) *BatchProcessDocumentsOperation { |
| return c.internalClient.BatchProcessDocumentsOperation(name) |
| } |
| |
| // ReviewDocument send a document for Human Review. The input document should be processed by |
| // the specified processor. |
| func (c *DocumentProcessorClient) ReviewDocument(ctx context.Context, req *documentaipb.ReviewDocumentRequest, opts ...gax.CallOption) (*ReviewDocumentOperation, error) { |
| return c.internalClient.ReviewDocument(ctx, req, opts...) |
| } |
| |
| // ReviewDocumentOperation returns a new ReviewDocumentOperation from a given name. |
| // The name must be that of a previously created ReviewDocumentOperation, possibly from a different process. |
| func (c *DocumentProcessorClient) ReviewDocumentOperation(name string) *ReviewDocumentOperation { |
| return c.internalClient.ReviewDocumentOperation(name) |
| } |
| |
| // documentProcessorGRPCClient is a client for interacting with Cloud Document AI API over gRPC transport. |
| // |
| // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls. |
| type documentProcessorGRPCClient 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 DocumentProcessorClient |
| CallOptions **DocumentProcessorCallOptions |
| |
| // The gRPC API client. |
| documentProcessorClient documentaipb.DocumentProcessorServiceClient |
| |
| // 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 |
| } |
| |
| // NewDocumentProcessorClient creates a new document processor 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 call Cloud DocumentAI to process documents according to the |
| // processor’s definition. Processors are built using state-of-the-art Google |
| // AI such as natural language, computer vision, and translation to extract |
| // structured information from unstructured or semi-structured documents. |
| func NewDocumentProcessorClient(ctx context.Context, opts ...option.ClientOption) (*DocumentProcessorClient, error) { |
| clientOpts := defaultDocumentProcessorGRPCClientOptions() |
| if newDocumentProcessorClientHook != nil { |
| hookOpts, err := newDocumentProcessorClientHook(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 := DocumentProcessorClient{CallOptions: defaultDocumentProcessorCallOptions()} |
| |
| c := &documentProcessorGRPCClient{ |
| connPool: connPool, |
| disableDeadlines: disableDeadlines, |
| documentProcessorClient: documentaipb.NewDocumentProcessorServiceClient(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 *documentProcessorGRPCClient) 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 *documentProcessorGRPCClient) 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 *documentProcessorGRPCClient) Close() error { |
| return c.connPool.Close() |
| } |
| |
| func (c *documentProcessorGRPCClient) ProcessDocument(ctx context.Context, req *documentaipb.ProcessRequest, opts ...gax.CallOption) (*documentaipb.ProcessResponse, 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).ProcessDocument[0:len((*c.CallOptions).ProcessDocument):len((*c.CallOptions).ProcessDocument)], opts...) |
| var resp *documentaipb.ProcessResponse |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.documentProcessorClient.ProcessDocument(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return resp, nil |
| } |
| |
| func (c *documentProcessorGRPCClient) BatchProcessDocuments(ctx context.Context, req *documentaipb.BatchProcessRequest, opts ...gax.CallOption) (*BatchProcessDocumentsOperation, 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).BatchProcessDocuments[0:len((*c.CallOptions).BatchProcessDocuments):len((*c.CallOptions).BatchProcessDocuments)], opts...) |
| var resp *longrunningpb.Operation |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.documentProcessorClient.BatchProcessDocuments(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return &BatchProcessDocumentsOperation{ |
| lro: longrunning.InternalNewOperation(*c.LROClient, resp), |
| }, nil |
| } |
| |
| func (c *documentProcessorGRPCClient) ReviewDocument(ctx context.Context, req *documentaipb.ReviewDocumentRequest, opts ...gax.CallOption) (*ReviewDocumentOperation, 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", "human_review_config", url.QueryEscape(req.GetHumanReviewConfig()))) |
| ctx = insertMetadata(ctx, c.xGoogMetadata, md) |
| opts = append((*c.CallOptions).ReviewDocument[0:len((*c.CallOptions).ReviewDocument):len((*c.CallOptions).ReviewDocument)], opts...) |
| var resp *longrunningpb.Operation |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.documentProcessorClient.ReviewDocument(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return &ReviewDocumentOperation{ |
| lro: longrunning.InternalNewOperation(*c.LROClient, resp), |
| }, nil |
| } |
| |
| // BatchProcessDocumentsOperation manages a long-running operation from BatchProcessDocuments. |
| type BatchProcessDocumentsOperation struct { |
| lro *longrunning.Operation |
| } |
| |
| // BatchProcessDocumentsOperation returns a new BatchProcessDocumentsOperation from a given name. |
| // The name must be that of a previously created BatchProcessDocumentsOperation, possibly from a different process. |
| func (c *documentProcessorGRPCClient) BatchProcessDocumentsOperation(name string) *BatchProcessDocumentsOperation { |
| return &BatchProcessDocumentsOperation{ |
| 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 *BatchProcessDocumentsOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*documentaipb.BatchProcessResponse, error) { |
| var resp documentaipb.BatchProcessResponse |
| 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 *BatchProcessDocumentsOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*documentaipb.BatchProcessResponse, error) { |
| var resp documentaipb.BatchProcessResponse |
| 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 *BatchProcessDocumentsOperation) Metadata() (*documentaipb.BatchProcessMetadata, error) { |
| var meta documentaipb.BatchProcessMetadata |
| 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 *BatchProcessDocumentsOperation) 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 *BatchProcessDocumentsOperation) Name() string { |
| return op.lro.Name() |
| } |
| |
| // ReviewDocumentOperation manages a long-running operation from ReviewDocument. |
| type ReviewDocumentOperation struct { |
| lro *longrunning.Operation |
| } |
| |
| // ReviewDocumentOperation returns a new ReviewDocumentOperation from a given name. |
| // The name must be that of a previously created ReviewDocumentOperation, possibly from a different process. |
| func (c *documentProcessorGRPCClient) ReviewDocumentOperation(name string) *ReviewDocumentOperation { |
| return &ReviewDocumentOperation{ |
| 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 *ReviewDocumentOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*documentaipb.ReviewDocumentResponse, error) { |
| var resp documentaipb.ReviewDocumentResponse |
| 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 *ReviewDocumentOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*documentaipb.ReviewDocumentResponse, error) { |
| var resp documentaipb.ReviewDocumentResponse |
| 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 *ReviewDocumentOperation) Metadata() (*documentaipb.ReviewDocumentOperationMetadata, error) { |
| var meta documentaipb.ReviewDocumentOperationMetadata |
| 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 *ReviewDocumentOperation) 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 *ReviewDocumentOperation) Name() string { |
| return op.lro.Name() |
| } |