示例#1
0
文件: api.go 项目: benjyw/kythe
// ParseSpec parses the given specification and returns an opened handle to an
// API Interface.  The following formats are currently supported:
//   - http:// URL pointed at a JSON web API
//   - https:// URL pointed at a JSON web API
//   - host:port pointed at a GRPC API
//   - local path to a LevelDB serving table
func ParseSpec(apiSpec string) (Interface, error) {
	api := &apiCloser{}
	if strings.HasPrefix(apiSpec, "http://") || strings.HasPrefix(apiSpec, "https://") {
		api.xs = xrefs.WebClient(apiSpec)
		api.ft = filetree.WebClient(apiSpec)
	} else if _, err := os.Stat(apiSpec); err == nil {
		db, err := leveldb.Open(apiSpec, nil)
		if err != nil {
			return nil, fmt.Errorf("error opening local DB at %q: %v", apiSpec, err)
		}
		api.closer = func() error { return db.Close() }

		tbl := table.ProtoBatchParallel{&table.KVProto{db}}
		api.xs = xsrv.NewCombinedTable(tbl)
		api.ft = &ftsrv.Table{tbl, true}
	} else {
		conn, err := grpc.Dial(apiSpec, grpc.WithInsecure())
		if err != nil {
			return nil, fmt.Errorf("error connecting to remote API %q: %v", apiSpec, err)
		}
		api.closer = func() error { conn.Close(); return nil }

		api.xs = xrefs.GRPC(xpb.NewXRefServiceClient(conn), gpb.NewGraphServiceClient(conn))
		api.ft = filetree.GRPC(ftpb.NewFileTreeServiceClient(conn))
	}
	return api, nil
}
示例#2
0
文件: kythe.go 项目: gameduell/kythe
func main() {
	flag.Parse()
	if len(flag.Args()) == 0 {
		flag.Usage()
		os.Exit(0)
	} else if *servingTable == "" && *remoteAPI == "" {
		log.Fatal("One of --serving_table or --api is required")
	}

	if *servingTable == "" {
		if strings.HasPrefix(*remoteAPI, "http://") || strings.HasPrefix(*remoteAPI, "https://") {
			xs = xrefs.WebClient(*remoteAPI)
			ft = filetree.WebClient(*remoteAPI)
			idx = search.WebClient(*remoteAPI)
		} else {
			conn, err := grpc.Dial(*remoteAPI)
			if err != nil {
				log.Fatalf("Error connecting to remote API %q: %v", *remoteAPI, err)
			}
			defer conn.Close()
			xs = xrefs.GRPC(xpb.NewXRefServiceClient(conn))
			ft = filetree.GRPC(ftpb.NewFileTreeServiceClient(conn))
			idx = search.GRPC(spb.NewSearchServiceClient(conn))
		}
	} else {
		db, err := leveldb.Open(*servingTable, nil)
		if err != nil {
			log.Fatalf("Error opening db at %q: %v", *servingTable, err)
		}
		defer db.Close()

		tbl := &table.KVProto{db}
		xs = &xsrv.Table{tbl}
		ft = &ftsrv.Table{tbl}
		idx = &srchsrv.Table{&table.KVInverted{db}}
	}

	if err := getCommand(flag.Arg(0)).run(); err != nil {
		log.Fatal("ERROR: ", err)
	}
}