| // 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" |
| "math" |
| |
| 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()...), |
| option.WithGRPCDialOption(grpc.WithDefaultCallOptions( |
| grpc.MaxCallRecvMsgSize(math.MaxInt32))), |
| } |
| } |
| |
| 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 |
| } |