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- // 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 expr
-
- import (
- "context"
-
- gax "github.com/googleapis/gax-go/v2"
- "google.golang.org/api/option"
- "google.golang.org/api/transport"
- exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
- "google.golang.org/grpc"
- "google.golang.org/grpc/metadata"
- )
-
- // CelCallOptions contains the retry settings for each method of CelClient.
- type CelCallOptions struct {
- Parse []gax.CallOption
- Check []gax.CallOption
- Eval []gax.CallOption
- }
-
- func defaultCelClientOptions() []option.ClientOption {
- return []option.ClientOption{
- option.WithEndpoint("cel.googleapis.com:443"),
- option.WithScopes(DefaultAuthScopes()...),
- }
- }
-
- func defaultCelCallOptions() *CelCallOptions {
- retry := map[[2]string][]gax.CallOption{}
- return &CelCallOptions{
- Parse: retry[[2]string{"default", "non_idempotent"}],
- Check: retry[[2]string{"default", "non_idempotent"}],
- Eval: retry[[2]string{"default", "non_idempotent"}],
- }
- }
-
- // CelClient is a client for interacting with Common Expression Language.
- //
- // Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
- type CelClient struct {
- // The connection to the service.
- conn *grpc.ClientConn
-
- // The gRPC API client.
- celClient exprpb.CelServiceClient
-
- // The call options for this service.
- CallOptions *CelCallOptions
-
- // The x-goog-* metadata to be sent with each request.
- xGoogMetadata metadata.MD
- }
-
- // NewCelClient creates a new cel service client.
- //
- // Access a CEL implementation from another process or machine.
- // A CEL implementation is decomposed as a parser, a static checker,
- // and an evaluator. Every CEL implementation is expected to provide
- // a server for this API. The API will be used for conformance testing,
- // utilities, and execution as a service.
- func NewCelClient(ctx context.Context, opts ...option.ClientOption) (*CelClient, error) {
- conn, err := transport.DialGRPC(ctx, append(defaultCelClientOptions(), opts...)...)
- if err != nil {
- return nil, err
- }
- c := &CelClient{
- conn: conn,
- CallOptions: defaultCelCallOptions(),
-
- celClient: exprpb.NewCelServiceClient(conn),
- }
- c.setGoogleClientInfo()
- return c, nil
- }
-
- // Connection returns the client's connection to the API service.
- func (c *CelClient) 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 *CelClient) 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 *CelClient) 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...))
- }
-
- // Parse transforms CEL source text into a parsed representation.
- func (c *CelClient) Parse(ctx context.Context, req *exprpb.ParseRequest, opts ...gax.CallOption) (*exprpb.ParseResponse, error) {
- ctx = insertMetadata(ctx, c.xGoogMetadata)
- opts = append(c.CallOptions.Parse[0:len(c.CallOptions.Parse):len(c.CallOptions.Parse)], opts...)
- var resp *exprpb.ParseResponse
- err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
- var err error
- resp, err = c.celClient.Parse(ctx, req, settings.GRPC...)
- return err
- }, opts...)
- if err != nil {
- return nil, err
- }
- return resp, nil
- }
-
- // Check runs static checks on a parsed CEL representation and return
- // an annotated representation, or a set of issues.
- func (c *CelClient) Check(ctx context.Context, req *exprpb.CheckRequest, opts ...gax.CallOption) (*exprpb.CheckResponse, error) {
- ctx = insertMetadata(ctx, c.xGoogMetadata)
- opts = append(c.CallOptions.Check[0:len(c.CallOptions.Check):len(c.CallOptions.Check)], opts...)
- var resp *exprpb.CheckResponse
- err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
- var err error
- resp, err = c.celClient.Check(ctx, req, settings.GRPC...)
- return err
- }, opts...)
- if err != nil {
- return nil, err
- }
- return resp, nil
- }
-
- // Eval evaluates a parsed or annotation CEL representation given
- // values of external bindings.
- func (c *CelClient) Eval(ctx context.Context, req *exprpb.EvalRequest, opts ...gax.CallOption) (*exprpb.EvalResponse, error) {
- ctx = insertMetadata(ctx, c.xGoogMetadata)
- opts = append(c.CallOptions.Eval[0:len(c.CallOptions.Eval):len(c.CallOptions.Eval)], opts...)
- var resp *exprpb.EvalResponse
- err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
- var err error
- resp, err = c.celClient.Eval(ctx, req, settings.GRPC...)
- return err
- }, opts...)
- if err != nil {
- return nil, err
- }
- return resp, nil
- }
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