| // Copyright 2018 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. |
| |
| // AUTO-GENERATED CODE. DO NOT EDIT. |
| |
| package language |
| |
| import ( |
| "context" |
| "time" |
| |
| gax "github.com/googleapis/gax-go" |
| "google.golang.org/api/option" |
| "google.golang.org/api/transport" |
| languagepb "google.golang.org/genproto/googleapis/cloud/language/v1" |
| "google.golang.org/grpc" |
| "google.golang.org/grpc/codes" |
| "google.golang.org/grpc/metadata" |
| ) |
| |
| // CallOptions contains the retry settings for each method of Client. |
| type CallOptions struct { |
| AnalyzeSentiment []gax.CallOption |
| AnalyzeEntities []gax.CallOption |
| AnalyzeEntitySentiment []gax.CallOption |
| AnalyzeSyntax []gax.CallOption |
| ClassifyText []gax.CallOption |
| AnnotateText []gax.CallOption |
| } |
| |
| func defaultClientOptions() []option.ClientOption { |
| return []option.ClientOption{ |
| option.WithEndpoint("language.googleapis.com:443"), |
| option.WithScopes(DefaultAuthScopes()...), |
| } |
| } |
| |
| func defaultCallOptions() *CallOptions { |
| retry := map[[2]string][]gax.CallOption{ |
| {"default", "idempotent"}: { |
| 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: 1.3, |
| }) |
| }), |
| }, |
| } |
| return &CallOptions{ |
| AnalyzeSentiment: retry[[2]string{"default", "idempotent"}], |
| AnalyzeEntities: retry[[2]string{"default", "idempotent"}], |
| AnalyzeEntitySentiment: retry[[2]string{"default", "idempotent"}], |
| AnalyzeSyntax: retry[[2]string{"default", "idempotent"}], |
| ClassifyText: retry[[2]string{"default", "idempotent"}], |
| AnnotateText: retry[[2]string{"default", "idempotent"}], |
| } |
| } |
| |
| // Client is a client for interacting with Google Cloud Natural Language API. |
| // |
| // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls. |
| type Client struct { |
| // The connection to the service. |
| conn *grpc.ClientConn |
| |
| // The gRPC API client. |
| client languagepb.LanguageServiceClient |
| |
| // The call options for this service. |
| CallOptions *CallOptions |
| |
| // The x-goog-* metadata to be sent with each request. |
| xGoogMetadata metadata.MD |
| } |
| |
| // NewClient creates a new language service client. |
| // |
| // Provides text analysis operations such as sentiment analysis and entity |
| // recognition. |
| func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) { |
| conn, err := transport.DialGRPC(ctx, append(defaultClientOptions(), opts...)...) |
| if err != nil { |
| return nil, err |
| } |
| c := &Client{ |
| conn: conn, |
| CallOptions: defaultCallOptions(), |
| |
| client: languagepb.NewLanguageServiceClient(conn), |
| } |
| c.setGoogleClientInfo() |
| return c, nil |
| } |
| |
| // Connection returns the client's connection to the API service. |
| func (c *Client) 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 *Client) 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 *Client) 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...)) |
| } |
| |
| // AnalyzeSentiment analyzes the sentiment of the provided text. |
| func (c *Client) AnalyzeSentiment(ctx context.Context, req *languagepb.AnalyzeSentimentRequest, opts ...gax.CallOption) (*languagepb.AnalyzeSentimentResponse, error) { |
| ctx = insertMetadata(ctx, c.xGoogMetadata) |
| opts = append(c.CallOptions.AnalyzeSentiment[0:len(c.CallOptions.AnalyzeSentiment):len(c.CallOptions.AnalyzeSentiment)], opts...) |
| var resp *languagepb.AnalyzeSentimentResponse |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.client.AnalyzeSentiment(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return resp, nil |
| } |
| |
| // AnalyzeEntities finds named entities (currently proper names and common nouns) in the text |
| // along with entity types, salience, mentions for each entity, and |
| // other properties. |
| func (c *Client) AnalyzeEntities(ctx context.Context, req *languagepb.AnalyzeEntitiesRequest, opts ...gax.CallOption) (*languagepb.AnalyzeEntitiesResponse, error) { |
| ctx = insertMetadata(ctx, c.xGoogMetadata) |
| opts = append(c.CallOptions.AnalyzeEntities[0:len(c.CallOptions.AnalyzeEntities):len(c.CallOptions.AnalyzeEntities)], opts...) |
| var resp *languagepb.AnalyzeEntitiesResponse |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.client.AnalyzeEntities(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return resp, nil |
| } |
| |
| // AnalyzeEntitySentiment finds entities, similar to [AnalyzeEntities][google.cloud.language.v1.LanguageService.AnalyzeEntities] in the text and analyzes |
| // sentiment associated with each entity and its mentions. |
| func (c *Client) AnalyzeEntitySentiment(ctx context.Context, req *languagepb.AnalyzeEntitySentimentRequest, opts ...gax.CallOption) (*languagepb.AnalyzeEntitySentimentResponse, error) { |
| ctx = insertMetadata(ctx, c.xGoogMetadata) |
| opts = append(c.CallOptions.AnalyzeEntitySentiment[0:len(c.CallOptions.AnalyzeEntitySentiment):len(c.CallOptions.AnalyzeEntitySentiment)], opts...) |
| var resp *languagepb.AnalyzeEntitySentimentResponse |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.client.AnalyzeEntitySentiment(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return resp, nil |
| } |
| |
| // AnalyzeSyntax analyzes the syntax of the text and provides sentence boundaries and |
| // tokenization along with part of speech tags, dependency trees, and other |
| // properties. |
| func (c *Client) AnalyzeSyntax(ctx context.Context, req *languagepb.AnalyzeSyntaxRequest, opts ...gax.CallOption) (*languagepb.AnalyzeSyntaxResponse, error) { |
| ctx = insertMetadata(ctx, c.xGoogMetadata) |
| opts = append(c.CallOptions.AnalyzeSyntax[0:len(c.CallOptions.AnalyzeSyntax):len(c.CallOptions.AnalyzeSyntax)], opts...) |
| var resp *languagepb.AnalyzeSyntaxResponse |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.client.AnalyzeSyntax(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return resp, nil |
| } |
| |
| // ClassifyText classifies a document into categories. |
| func (c *Client) ClassifyText(ctx context.Context, req *languagepb.ClassifyTextRequest, opts ...gax.CallOption) (*languagepb.ClassifyTextResponse, error) { |
| ctx = insertMetadata(ctx, c.xGoogMetadata) |
| opts = append(c.CallOptions.ClassifyText[0:len(c.CallOptions.ClassifyText):len(c.CallOptions.ClassifyText)], opts...) |
| var resp *languagepb.ClassifyTextResponse |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.client.ClassifyText(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return resp, nil |
| } |
| |
| // AnnotateText a convenience method that provides all the features that analyzeSentiment, |
| // analyzeEntities, and analyzeSyntax provide in one call. |
| func (c *Client) AnnotateText(ctx context.Context, req *languagepb.AnnotateTextRequest, opts ...gax.CallOption) (*languagepb.AnnotateTextResponse, error) { |
| ctx = insertMetadata(ctx, c.xGoogMetadata) |
| opts = append(c.CallOptions.AnnotateText[0:len(c.CallOptions.AnnotateText):len(c.CallOptions.AnnotateText)], opts...) |
| var resp *languagepb.AnnotateTextResponse |
| err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error { |
| var err error |
| resp, err = c.client.AnnotateText(ctx, req, settings.GRPC...) |
| return err |
| }, opts...) |
| if err != nil { |
| return nil, err |
| } |
| return resp, nil |
| } |