| // Copyright 2017 Google Inc. All Rights Reserved. |
| // |
| // 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 |
| // |
| // http://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. |
| |
| // gnostic_analyze is a tool for analyzing OpenAPI descriptions. |
| // |
| // It scans an API description and evaluates properties |
| // that influence the ease and quality of code generation. |
| // - The number of HTTP operations of each method (GET, POST, etc). |
| // - The number of HTTP operations with no OperationId value. |
| // - The parameter types used and their frequencies. |
| // - The response types used and their frequencies. |
| // - The types used in definition objects and arrays and their frequencies. |
| // Results are returned in a JSON structure. |
| package main |
| |
| import ( |
| "encoding/json" |
| "os" |
| "path" |
| "strings" |
| |
| "github.com/googleapis/gnostic/plugins/gnostic-analyze/statistics" |
| |
| "github.com/golang/protobuf/proto" |
| openapiv2 "github.com/googleapis/gnostic/OpenAPIv2" |
| openapiv3 "github.com/googleapis/gnostic/OpenAPIv3" |
| plugins "github.com/googleapis/gnostic/plugins" |
| ) |
| |
| // Record an error, then serialize and return a response. |
| func sendAndExitIfError(err error, response *plugins.Response) { |
| if err != nil { |
| response.Errors = append(response.Errors, err.Error()) |
| sendAndExit(response) |
| } |
| } |
| |
| // Serialize and return a response. |
| func sendAndExit(response *plugins.Response) { |
| responseBytes, _ := proto.Marshal(response) |
| os.Stdout.Write(responseBytes) |
| os.Exit(0) |
| } |
| |
| // This is the main function for the plugin. |
| func main() { |
| env, err := plugins.NewEnvironment() |
| env.RespondAndExitIfError(err) |
| |
| var stats *statistics.DocumentStatistics |
| |
| for _, model := range env.Request.Models { |
| switch model.TypeUrl { |
| case "openapi.v2.Document": |
| documentv2 := &openapiv2.Document{} |
| err = proto.Unmarshal(model.Value, documentv2) |
| if err == nil { |
| // Analyze the API document. |
| stats = statistics.NewDocumentStatistics(env.Request.SourceName, documentv2) |
| } |
| case "openapi.v3.Document": |
| documentv3 := &openapiv3.Document{} |
| err = proto.Unmarshal(model.Value, documentv3) |
| if err == nil { |
| // Analyze the API document. |
| stats = statistics.NewDocumentStatisticsV3(env.Request.SourceName, documentv3) |
| } |
| } |
| } |
| |
| if stats != nil { |
| // Return the analysis results with an appropriate filename. |
| // Results are in files named "summary.json" in the same relative |
| // locations as the description source files. |
| file := &plugins.File{} |
| file.Name = strings.Replace(stats.Name, path.Base(stats.Name), "summary.json", -1) |
| file.Data, err = json.MarshalIndent(stats, "", " ") |
| file.Data = append(file.Data, []byte("\n")...) |
| env.RespondAndExitIfError(err) |
| env.Response.Files = append(env.Response.Files, file) |
| } |
| |
| env.RespondAndExit() |
| } |