56 lines
1.5 KiB
Go
56 lines
1.5 KiB
Go
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/*
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*
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* Copyright 2020 gRPC authors.
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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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* http://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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*
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*/
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// Package grpcutil provides a bunch of utility functions to be used across the
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// gRPC codebase.
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package grpcutil
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import (
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"strings"
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"google.golang.org/grpc/resolver"
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)
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// split2 returns the values from strings.SplitN(s, sep, 2).
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// If sep is not found, it returns ("", "", false) instead.
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func split2(s, sep string) (string, string, bool) {
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spl := strings.SplitN(s, sep, 2)
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if len(spl) < 2 {
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return "", "", false
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}
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return spl[0], spl[1], true
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}
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// ParseTarget splits target into a resolver.Target struct containing scheme,
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// authority and endpoint.
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//
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// If target is not a valid scheme://authority/endpoint, it returns {Endpoint:
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// target}.
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func ParseTarget(target string) (ret resolver.Target) {
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var ok bool
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ret.Scheme, ret.Endpoint, ok = split2(target, "://")
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if !ok {
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return resolver.Target{Endpoint: target}
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}
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ret.Authority, ret.Endpoint, ok = split2(ret.Endpoint, "/")
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if !ok {
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return resolver.Target{Endpoint: target}
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}
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return ret
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}
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