90 lines
2.6 KiB
Go
90 lines
2.6 KiB
Go
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//
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// Copyright (c) 2019 Intel Corporation
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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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package config
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import (
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"fmt"
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"net/url"
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"strconv"
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"strings"
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)
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const DefaultProtocol = "http"
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// ServiceConfig defines the information need to connect to the Configuration service and optionally register the service
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// for discovery and health checks
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type ServiceConfig struct {
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// The Protocol that should be used to connect to the Configuration service. HTTP is used if not set.
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Protocol string
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// Host is the hostname or IP address of the Configuration service
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Host string
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// Port is the HTTP port of the Configuration service
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Port int
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// Type is the implementation type of the Configuration service, i.e. consul
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Type string
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// BasePath is the base path with in the Configuration service where the your service's configuration is stored
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BasePath string
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}
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//
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// A few helper functions for building URLs.
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//
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func (config ServiceConfig) GetUrl() string {
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return fmt.Sprintf("%s://%s:%v", config.GetProtocol(), config.Host, config.Port)
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}
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func (config *ServiceConfig) GetProtocol() string {
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if config.Protocol == "" {
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return "http"
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}
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return config.Protocol
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}
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func (config *ServiceConfig) PopulateFromUrl(providerUrl string) error {
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url, err := url.Parse(providerUrl)
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if err != nil {
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return fmt.Errorf("the format of Provider URL is incorrect (%s): %s", providerUrl, err.Error())
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}
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port, err := strconv.Atoi(url.Port())
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if err != nil {
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return fmt.Errorf("the port from Provider URL is incorrect (%s): %s", providerUrl, err.Error())
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}
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config.Host = url.Hostname()
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config.Port = port
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typeAndProtocol := strings.Split(url.Scheme, ".")
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// TODO: Enforce both Type and Protocol present for release V2.0.0
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// Support for default protocol is for backwards compatibility with Fuji Device Services.
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switch len(typeAndProtocol) {
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case 1:
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config.Type = typeAndProtocol[0]
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config.Protocol = DefaultProtocol
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case 2:
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config.Type = typeAndProtocol[0]
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config.Protocol = typeAndProtocol[1]
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default:
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return fmt.Errorf("the Type and Protocol spec from Provider URL is incorrect: %s", providerUrl)
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}
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return nil
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}
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