230 lines
8.5 KiB
Go
230 lines
8.5 KiB
Go
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// Copyright 2018 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// AUTO-GENERATED CODE. DO NOT EDIT.
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package language
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import (
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"time"
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"cloud.google.com/go/internal/version"
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gax "github.com/googleapis/gax-go"
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"golang.org/x/net/context"
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"google.golang.org/api/option"
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"google.golang.org/api/transport"
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languagepb "google.golang.org/genproto/googleapis/cloud/language/v1"
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"google.golang.org/grpc"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/metadata"
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)
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// CallOptions contains the retry settings for each method of Client.
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type CallOptions struct {
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AnalyzeSentiment []gax.CallOption
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AnalyzeEntities []gax.CallOption
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AnalyzeEntitySentiment []gax.CallOption
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AnalyzeSyntax []gax.CallOption
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ClassifyText []gax.CallOption
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AnnotateText []gax.CallOption
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}
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func defaultClientOptions() []option.ClientOption {
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return []option.ClientOption{
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option.WithEndpoint("language.googleapis.com:443"),
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option.WithScopes(DefaultAuthScopes()...),
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}
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}
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func defaultCallOptions() *CallOptions {
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retry := map[[2]string][]gax.CallOption{
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{"default", "idempotent"}: {
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gax.WithRetry(func() gax.Retryer {
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return gax.OnCodes([]codes.Code{
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codes.DeadlineExceeded,
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codes.Unavailable,
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}, gax.Backoff{
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Initial: 100 * time.Millisecond,
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Max: 60000 * time.Millisecond,
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Multiplier: 1.3,
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})
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}),
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},
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}
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return &CallOptions{
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AnalyzeSentiment: retry[[2]string{"default", "idempotent"}],
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AnalyzeEntities: retry[[2]string{"default", "idempotent"}],
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AnalyzeEntitySentiment: retry[[2]string{"default", "idempotent"}],
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AnalyzeSyntax: retry[[2]string{"default", "idempotent"}],
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ClassifyText: retry[[2]string{"default", "idempotent"}],
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AnnotateText: retry[[2]string{"default", "idempotent"}],
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}
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}
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// Client is a client for interacting with Google Cloud Natural Language API.
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type Client struct {
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// The connection to the service.
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conn *grpc.ClientConn
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// The gRPC API client.
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client languagepb.LanguageServiceClient
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// The call options for this service.
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CallOptions *CallOptions
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// The x-goog-* metadata to be sent with each request.
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xGoogMetadata metadata.MD
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}
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// NewClient creates a new language service client.
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//
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// Provides text analysis operations such as sentiment analysis and entity
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// recognition.
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func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) {
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conn, err := transport.DialGRPC(ctx, append(defaultClientOptions(), opts...)...)
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if err != nil {
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return nil, err
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}
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c := &Client{
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conn: conn,
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CallOptions: defaultCallOptions(),
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client: languagepb.NewLanguageServiceClient(conn),
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}
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c.setGoogleClientInfo()
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return c, nil
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}
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// Connection returns the client's connection to the API service.
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func (c *Client) Connection() *grpc.ClientConn {
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return c.conn
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}
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// Close closes the connection to the API service. The user should invoke this when
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// the client is no longer required.
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func (c *Client) Close() error {
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return c.conn.Close()
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}
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// setGoogleClientInfo sets the name and version of the application in
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// the `x-goog-api-client` header passed on each request. Intended for
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// use by Google-written clients.
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func (c *Client) setGoogleClientInfo(keyval ...string) {
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kv := append([]string{"gl-go", version.Go()}, keyval...)
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kv = append(kv, "gapic", version.Repo, "gax", gax.Version, "grpc", grpc.Version)
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c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
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}
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// AnalyzeSentiment analyzes the sentiment of the provided text.
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func (c *Client) AnalyzeSentiment(ctx context.Context, req *languagepb.AnalyzeSentimentRequest, opts ...gax.CallOption) (*languagepb.AnalyzeSentimentResponse, error) {
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ctx = insertMetadata(ctx, c.xGoogMetadata)
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opts = append(c.CallOptions.AnalyzeSentiment[0:len(c.CallOptions.AnalyzeSentiment):len(c.CallOptions.AnalyzeSentiment)], opts...)
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var resp *languagepb.AnalyzeSentimentResponse
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err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
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var err error
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resp, err = c.client.AnalyzeSentiment(ctx, req, settings.GRPC...)
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return err
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}, opts...)
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if err != nil {
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return nil, err
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}
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return resp, nil
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}
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// AnalyzeEntities finds named entities (currently proper names and common nouns) in the text
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// along with entity types, salience, mentions for each entity, and
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// other properties.
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func (c *Client) AnalyzeEntities(ctx context.Context, req *languagepb.AnalyzeEntitiesRequest, opts ...gax.CallOption) (*languagepb.AnalyzeEntitiesResponse, error) {
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ctx = insertMetadata(ctx, c.xGoogMetadata)
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opts = append(c.CallOptions.AnalyzeEntities[0:len(c.CallOptions.AnalyzeEntities):len(c.CallOptions.AnalyzeEntities)], opts...)
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var resp *languagepb.AnalyzeEntitiesResponse
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err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
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var err error
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resp, err = c.client.AnalyzeEntities(ctx, req, settings.GRPC...)
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return err
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}, opts...)
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if err != nil {
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return nil, err
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}
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return resp, nil
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}
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// AnalyzeEntitySentiment finds entities, similar to [AnalyzeEntities][google.cloud.language.v1.LanguageService.AnalyzeEntities] in the text and analyzes
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// sentiment associated with each entity and its mentions.
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func (c *Client) AnalyzeEntitySentiment(ctx context.Context, req *languagepb.AnalyzeEntitySentimentRequest, opts ...gax.CallOption) (*languagepb.AnalyzeEntitySentimentResponse, error) {
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ctx = insertMetadata(ctx, c.xGoogMetadata)
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opts = append(c.CallOptions.AnalyzeEntitySentiment[0:len(c.CallOptions.AnalyzeEntitySentiment):len(c.CallOptions.AnalyzeEntitySentiment)], opts...)
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var resp *languagepb.AnalyzeEntitySentimentResponse
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err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
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var err error
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resp, err = c.client.AnalyzeEntitySentiment(ctx, req, settings.GRPC...)
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return err
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}, opts...)
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if err != nil {
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return nil, err
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}
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return resp, nil
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}
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// AnalyzeSyntax analyzes the syntax of the text and provides sentence boundaries and
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// tokenization along with part of speech tags, dependency trees, and other
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// properties.
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func (c *Client) AnalyzeSyntax(ctx context.Context, req *languagepb.AnalyzeSyntaxRequest, opts ...gax.CallOption) (*languagepb.AnalyzeSyntaxResponse, error) {
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ctx = insertMetadata(ctx, c.xGoogMetadata)
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opts = append(c.CallOptions.AnalyzeSyntax[0:len(c.CallOptions.AnalyzeSyntax):len(c.CallOptions.AnalyzeSyntax)], opts...)
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var resp *languagepb.AnalyzeSyntaxResponse
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err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
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var err error
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resp, err = c.client.AnalyzeSyntax(ctx, req, settings.GRPC...)
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return err
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}, opts...)
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if err != nil {
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return nil, err
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}
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return resp, nil
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}
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// ClassifyText classifies a document into categories.
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func (c *Client) ClassifyText(ctx context.Context, req *languagepb.ClassifyTextRequest, opts ...gax.CallOption) (*languagepb.ClassifyTextResponse, error) {
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ctx = insertMetadata(ctx, c.xGoogMetadata)
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opts = append(c.CallOptions.ClassifyText[0:len(c.CallOptions.ClassifyText):len(c.CallOptions.ClassifyText)], opts...)
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var resp *languagepb.ClassifyTextResponse
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err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
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var err error
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resp, err = c.client.ClassifyText(ctx, req, settings.GRPC...)
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return err
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}, opts...)
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if err != nil {
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return nil, err
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}
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return resp, nil
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}
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// AnnotateText a convenience method that provides all the features that analyzeSentiment,
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// analyzeEntities, and analyzeSyntax provide in one call.
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func (c *Client) AnnotateText(ctx context.Context, req *languagepb.AnnotateTextRequest, opts ...gax.CallOption) (*languagepb.AnnotateTextResponse, error) {
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ctx = insertMetadata(ctx, c.xGoogMetadata)
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opts = append(c.CallOptions.AnnotateText[0:len(c.CallOptions.AnnotateText):len(c.CallOptions.AnnotateText)], opts...)
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var resp *languagepb.AnnotateTextResponse
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err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
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var err error
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resp, err = c.client.AnnotateText(ctx, req, settings.GRPC...)
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return err
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}, opts...)
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if err != nil {
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return nil, err
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}
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return resp, nil
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}
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