forked from mirror/viper
799 lines
22 KiB
Go
799 lines
22 KiB
Go
// Copyright © 2014 Steve Francia <spf@spf13.com>.
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//
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// Use of this source code is governed by an MIT-style
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// license that can be found in the LICENSE file.
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// Viper is a application configuration system.
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// It believes that applications can be configured a variety of ways
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// via flags, ENVIRONMENT variables, configuration files retrieved
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// from the file system, or a remote key/value store.
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// Each item takes precedence over the item below it:
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// flag
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// env
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// config
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// key/value store
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// default
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package viper
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import (
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"bytes"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"path/filepath"
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"reflect"
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"strings"
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"time"
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"github.com/kr/pretty"
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"github.com/mitchellh/mapstructure"
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"github.com/spf13/cast"
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jww "github.com/spf13/jwalterweatherman"
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"github.com/spf13/pflag"
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crypt "github.com/xordataexchange/crypt/config"
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)
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var v *Viper
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func init() {
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v = New()
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}
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type UnsupportedConfigError string
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func (str UnsupportedConfigError) Error() string {
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return fmt.Sprintf("Unsupported Config Type %q", string(str))
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}
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type UnsupportedRemoteProviderError string
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func (str UnsupportedRemoteProviderError) Error() string {
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return fmt.Sprintf("Unsupported Remote Provider Type %q", string(str))
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}
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type RemoteConfigError string
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func (rce RemoteConfigError) Error() string {
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return fmt.Sprintf("Remote Configurations Error: %s", string(rce))
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}
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// A Viper is a unexported struct. Use New() to create a new instance of viper
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// or use the functions for a "global instance"
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type Viper struct {
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// A set of paths to look for the config file in
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configPaths []string
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// A set of remote providers to search for the configuration
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remoteProviders []*remoteProvider
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// Name of file to look for inside the path
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configName string
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configFile string
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configType string
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envPrefix string
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automaticEnvApplied bool
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envKeyReplacer *strings.Replacer
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config map[string]interface{}
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override map[string]interface{}
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defaults map[string]interface{}
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kvstore map[string]interface{}
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pflags map[string]*pflag.Flag
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env map[string]string
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aliases map[string]string
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}
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// The prescribed way to create a new Viper
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func New() *Viper {
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v := new(Viper)
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v.configName = "config"
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v.config = make(map[string]interface{})
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v.override = make(map[string]interface{})
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v.defaults = make(map[string]interface{})
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v.kvstore = make(map[string]interface{})
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v.pflags = make(map[string]*pflag.Flag)
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v.env = make(map[string]string)
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v.aliases = make(map[string]string)
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return v
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}
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// Intended for testing, will reset all to default settings.
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// In the public interface for the viper package so applications
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// can use it in their testing as well.
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func Reset() {
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v = New()
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SupportedExts = []string{"json", "toml", "yaml", "yml"}
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SupportedRemoteProviders = []string{"etcd", "consul"}
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}
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// remoteProvider stores the configuration necessary
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// to connect to a remote key/value store.
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// Optional secretKeyring to unencrypt encrypted values
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// can be provided.
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type remoteProvider struct {
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provider string
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endpoint string
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path string
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secretKeyring string
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}
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// universally supported extensions
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var SupportedExts []string = []string{"json", "toml", "yaml", "yml"}
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// universally supported remote providers
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var SupportedRemoteProviders []string = []string{"etcd", "consul"}
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// Explicitly define the path, name and extension of the config file
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// Viper will use this and not check any of the config paths
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func SetConfigFile(in string) { v.SetConfigFile(in) }
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func (v *Viper) SetConfigFile(in string) {
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if in != "" {
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v.configFile = in
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}
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}
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// Define a prefix that ENVIRONMENT variables will use.
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func SetEnvPrefix(in string) { v.SetEnvPrefix(in) }
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func (v *Viper) SetEnvPrefix(in string) {
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if in != "" {
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v.envPrefix = in
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}
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}
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func (v *Viper) mergeWithEnvPrefix(in string) string {
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if v.envPrefix != "" {
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return strings.ToUpper(v.envPrefix + "_" + in)
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}
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return strings.ToUpper(in)
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}
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// TODO: should getEnv logic be moved into find(). Can generalize the use of
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// rewriting keys many things, Ex: Get('someKey') -> some_key
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// (cammel case to snake case for JSON keys perhaps)
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// getEnv s a wrapper around os.Getenv which replaces characters in the original
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// key. This allows env vars which have different keys then the config object
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// keys
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func (v *Viper) getEnv(key string) string {
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if v.envKeyReplacer != nil {
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key = v.envKeyReplacer.Replace(key)
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}
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return os.Getenv(key)
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}
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// Return the config file used
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func ConfigFileUsed() string { return v.ConfigFileUsed() }
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func (v *Viper) ConfigFileUsed() string { return v.configFile }
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// Add a path for Viper to search for the config file in.
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// Can be called multiple times to define multiple search paths.
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func AddConfigPath(in string) { v.AddConfigPath(in) }
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func (v *Viper) AddConfigPath(in string) {
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if in != "" {
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absin := absPathify(in)
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jww.INFO.Println("adding", absin, "to paths to search")
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if !stringInSlice(absin, v.configPaths) {
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v.configPaths = append(v.configPaths, absin)
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}
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}
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}
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// AddRemoteProvider adds a remote configuration source.
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// Remote Providers are searched in the order they are added.
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// provider is a string value, "etcd" or "consul" are currently supported.
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// endpoint is the url. etcd requires http://ip:port consul requires ip:port
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// path is the path in the k/v store to retrieve configuration
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// To retrieve a config file called myapp.json from /configs/myapp.json
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// you should set path to /configs and set config name (SetConfigName()) to
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// "myapp"
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func AddRemoteProvider(provider, endpoint, path string) error {
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return v.AddRemoteProvider(provider, endpoint, path)
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}
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func (v *Viper) AddRemoteProvider(provider, endpoint, path string) error {
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if !stringInSlice(provider, SupportedRemoteProviders) {
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return UnsupportedRemoteProviderError(provider)
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}
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if provider != "" && endpoint != "" {
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jww.INFO.Printf("adding %s:%s to remote provider list", provider, endpoint)
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rp := &remoteProvider{
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endpoint: endpoint,
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provider: provider,
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path: path,
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}
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if !v.providerPathExists(rp) {
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v.remoteProviders = append(v.remoteProviders, rp)
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}
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}
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return nil
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}
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// AddSecureRemoteProvider adds a remote configuration source.
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// Secure Remote Providers are searched in the order they are added.
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// provider is a string value, "etcd" or "consul" are currently supported.
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// endpoint is the url. etcd requires http://ip:port consul requires ip:port
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// secretkeyring is the filepath to your openpgp secret keyring. e.g. /etc/secrets/myring.gpg
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// path is the path in the k/v store to retrieve configuration
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// To retrieve a config file called myapp.json from /configs/myapp.json
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// you should set path to /configs and set config name (SetConfigName()) to
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// "myapp"
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// Secure Remote Providers are implemented with github.com/xordataexchange/crypt
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func AddSecureRemoteProvider(provider, endpoint, path, secretkeyring string) error {
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return v.AddSecureRemoteProvider(provider, endpoint, path, secretkeyring)
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}
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func (v *Viper) AddSecureRemoteProvider(provider, endpoint, path, secretkeyring string) error {
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if !stringInSlice(provider, SupportedRemoteProviders) {
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return UnsupportedRemoteProviderError(provider)
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}
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if provider != "" && endpoint != "" {
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jww.INFO.Printf("adding %s:%s to remote provider list", provider, endpoint)
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rp := &remoteProvider{
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endpoint: endpoint,
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provider: provider,
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path: path,
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}
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if !v.providerPathExists(rp) {
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v.remoteProviders = append(v.remoteProviders, rp)
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}
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}
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return nil
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}
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func (v *Viper) providerPathExists(p *remoteProvider) bool {
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for _, y := range v.remoteProviders {
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if reflect.DeepEqual(y, p) {
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return true
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}
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}
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return false
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}
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// Viper is essentially repository for configurations
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// Get can retrieve any value given the key to use
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// Get has the behavior of returning the value associated with the first
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// place from where it is set. Viper will check in the following order:
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// flag, env, config file, key/value store, default
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//
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// Get returns an interface. For a specific value use one of the Get____ methods.
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func Get(key string) interface{} { return v.Get(key) }
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func (v *Viper) Get(key string) interface{} {
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key = strings.ToLower(key)
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val := v.find(key)
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if val == nil {
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return nil
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}
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switch val.(type) {
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case bool:
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return cast.ToBool(val)
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case string:
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return cast.ToString(val)
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case int64, int32, int16, int8, int:
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return cast.ToInt(val)
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case float64, float32:
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return cast.ToFloat64(val)
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case time.Time:
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return cast.ToTime(val)
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case time.Duration:
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return cast.ToDuration(val)
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case []string:
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return val
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}
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return val
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}
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func GetString(key string) string { return v.GetString(key) }
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func (v *Viper) GetString(key string) string {
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return cast.ToString(v.Get(key))
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}
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func GetBool(key string) bool { return v.GetBool(key) }
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func (v *Viper) GetBool(key string) bool {
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return cast.ToBool(v.Get(key))
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}
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func GetInt(key string) int { return v.GetInt(key) }
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func (v *Viper) GetInt(key string) int {
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return cast.ToInt(v.Get(key))
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}
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func GetFloat64(key string) float64 { return v.GetFloat64(key) }
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func (v *Viper) GetFloat64(key string) float64 {
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return cast.ToFloat64(v.Get(key))
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}
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func GetTime(key string) time.Time { return v.GetTime(key) }
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func (v *Viper) GetTime(key string) time.Time {
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return cast.ToTime(v.Get(key))
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}
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func GetDuration(key string) time.Duration { return v.GetDuration(key) }
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func (v *Viper) GetDuration(key string) time.Duration {
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return cast.ToDuration(v.Get(key))
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}
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func GetStringSlice(key string) []string { return v.GetStringSlice(key) }
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func (v *Viper) GetStringSlice(key string) []string {
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return cast.ToStringSlice(v.Get(key))
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}
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func GetStringMap(key string) map[string]interface{} { return v.GetStringMap(key) }
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func (v *Viper) GetStringMap(key string) map[string]interface{} {
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return cast.ToStringMap(v.Get(key))
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}
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func GetStringMapString(key string) map[string]string { return v.GetStringMapString(key) }
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func (v *Viper) GetStringMapString(key string) map[string]string {
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return cast.ToStringMapString(v.Get(key))
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}
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func GetSizeInBytes(key string) uint { return v.GetSizeInBytes(key) }
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func (v *Viper) GetSizeInBytes(key string) uint {
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sizeStr := cast.ToString(v.Get(key))
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return parseSizeInBytes(sizeStr)
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}
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// Takes a single key and marshals it into a Struct
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func MarshalKey(key string, rawVal interface{}) error { return v.MarshalKey(key, rawVal) }
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func (v *Viper) MarshalKey(key string, rawVal interface{}) error {
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return mapstructure.Decode(v.Get(key), rawVal)
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}
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// Marshals the config into a Struct
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func Marshal(rawVal interface{}) error { return v.Marshal(rawVal) }
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func (v *Viper) Marshal(rawVal interface{}) error {
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err := mapstructure.WeakDecode(v.AllSettings(), rawVal)
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if err != nil {
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return err
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}
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v.insensitiviseMaps()
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return nil
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}
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// Bind a specific key to a flag (as used by cobra)
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//
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// serverCmd.Flags().Int("port", 1138, "Port to run Application server on")
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// Viper.BindPFlag("port", serverCmd.Flags().Lookup("port"))
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//
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func BindPFlag(key string, flag *pflag.Flag) (err error) { return v.BindPFlag(key, flag) }
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func (v *Viper) BindPFlag(key string, flag *pflag.Flag) (err error) {
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if flag == nil {
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return fmt.Errorf("flag for %q is nil", key)
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}
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v.pflags[strings.ToLower(key)] = flag
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switch flag.Value.Type() {
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case "int", "int8", "int16", "int32", "int64":
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SetDefault(key, cast.ToInt(flag.Value.String()))
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case "bool":
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SetDefault(key, cast.ToBool(flag.Value.String()))
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default:
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SetDefault(key, flag.Value.String())
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}
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return nil
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}
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// Binds a Viper key to a ENV variable
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// ENV variables are case sensitive
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// If only a key is provided, it will use the env key matching the key, uppercased.
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// EnvPrefix will be used when set when env name is not provided.
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func BindEnv(input ...string) (err error) { return v.BindEnv(input...) }
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func (v *Viper) BindEnv(input ...string) (err error) {
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var key, envkey string
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if len(input) == 0 {
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return fmt.Errorf("BindEnv missing key to bind to")
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}
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key = strings.ToLower(input[0])
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if len(input) == 1 {
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envkey = v.mergeWithEnvPrefix(key)
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} else {
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envkey = input[1]
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}
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v.env[key] = envkey
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return nil
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}
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// Given a key, find the value
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// Viper will check in the following order:
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// flag, env, config file, key/value store, default
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// Viper will check to see if an alias exists first
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func (v *Viper) find(key string) interface{} {
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var val interface{}
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var exists bool
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// if the requested key is an alias, then return the proper key
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key = v.realKey(key)
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// PFlag Override first
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flag, exists := v.pflags[key]
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if exists {
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if flag.Changed {
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jww.TRACE.Println(key, "found in override (via pflag):", val)
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return flag.Value.String()
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}
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}
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val, exists = v.override[key]
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if exists {
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jww.TRACE.Println(key, "found in override:", val)
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return val
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}
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if v.automaticEnvApplied {
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// even if it hasn't been registered, if automaticEnv is used,
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// check any Get request
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if val = v.getEnv(v.mergeWithEnvPrefix(key)); val != "" {
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jww.TRACE.Println(key, "found in environment with val:", val)
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return val
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}
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}
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envkey, exists := v.env[key]
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if exists {
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jww.TRACE.Println(key, "registered as env var", envkey)
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if val = v.getEnv(envkey); val != "" {
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jww.TRACE.Println(envkey, "found in environment with val:", val)
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return val
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} else {
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jww.TRACE.Println(envkey, "env value unset:")
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}
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}
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val, exists = v.config[key]
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if exists {
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jww.TRACE.Println(key, "found in config:", val)
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return val
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}
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val, exists = v.kvstore[key]
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if exists {
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jww.TRACE.Println(key, "found in key/value store:", val)
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return val
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}
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val, exists = v.defaults[key]
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if exists {
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jww.TRACE.Println(key, "found in defaults:", val)
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return val
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}
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return nil
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}
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// Check to see if the key has been set in any of the data locations
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func IsSet(key string) bool { return v.IsSet(key) }
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func (v *Viper) IsSet(key string) bool {
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t := v.Get(key)
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return t != nil
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}
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// Have Viper check ENV variables for all
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// keys set in config, default & flags
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func AutomaticEnv() { v.AutomaticEnv() }
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func (v *Viper) AutomaticEnv() {
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v.automaticEnvApplied = true
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}
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// SetEnvKeyReplacer sets the strings.Replacer on the viper object
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func SetEnvKeyReplacer(r *strings.Replacer) { v.SetEnvKeyReplacer(r) }
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func (v *Viper) SetEnvKeyReplacer(r *strings.Replacer) {
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v.envKeyReplacer = r
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}
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// Aliases provide another accessor for the same key.
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// This enables one to change a name without breaking the application
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func RegisterAlias(alias string, key string) { v.RegisterAlias(alias, key) }
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func (v *Viper) RegisterAlias(alias string, key string) {
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v.registerAlias(alias, strings.ToLower(key))
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}
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func (v *Viper) registerAlias(alias string, key string) {
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alias = strings.ToLower(alias)
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if alias != key && alias != v.realKey(key) {
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_, exists := v.aliases[alias]
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if !exists {
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// if we alias something that exists in one of the maps to another
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// name, we'll never be able to get that value using the original
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// name, so move the config value to the new realkey.
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if val, ok := v.config[alias]; ok {
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delete(v.config, alias)
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v.config[key] = val
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}
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if val, ok := v.kvstore[alias]; ok {
|
|
delete(v.kvstore, alias)
|
|
v.kvstore[key] = val
|
|
}
|
|
if val, ok := v.defaults[alias]; ok {
|
|
delete(v.defaults, alias)
|
|
v.defaults[key] = val
|
|
}
|
|
if val, ok := v.override[alias]; ok {
|
|
delete(v.override, alias)
|
|
v.override[key] = val
|
|
}
|
|
v.aliases[alias] = key
|
|
}
|
|
} else {
|
|
jww.WARN.Println("Creating circular reference alias", alias, key, v.realKey(key))
|
|
}
|
|
}
|
|
|
|
func (v *Viper) realKey(key string) string {
|
|
newkey, exists := v.aliases[key]
|
|
if exists {
|
|
jww.DEBUG.Println("Alias", key, "to", newkey)
|
|
return v.realKey(newkey)
|
|
} else {
|
|
return key
|
|
}
|
|
}
|
|
|
|
// Check to see if the given key (or an alias) is in the config file
|
|
func InConfig(key string) bool { return v.InConfig(key) }
|
|
func (v *Viper) InConfig(key string) bool {
|
|
// if the requested key is an alias, then return the proper key
|
|
key = v.realKey(key)
|
|
|
|
_, exists := v.config[key]
|
|
return exists
|
|
}
|
|
|
|
// Set the default value for this key.
|
|
// Default only used when no value is provided by the user via flag, config or ENV.
|
|
func SetDefault(key string, value interface{}) { v.SetDefault(key, value) }
|
|
func (v *Viper) SetDefault(key string, value interface{}) {
|
|
// If alias passed in, then set the proper default
|
|
key = v.realKey(strings.ToLower(key))
|
|
v.defaults[key] = value
|
|
}
|
|
|
|
// The user provided value (via flag)
|
|
// Will be used instead of values obtained via
|
|
// config file, ENV, default, or key/value store
|
|
func Set(key string, value interface{}) { v.Set(key, value) }
|
|
func (v *Viper) Set(key string, value interface{}) {
|
|
// If alias passed in, then set the proper override
|
|
key = v.realKey(strings.ToLower(key))
|
|
v.override[key] = value
|
|
}
|
|
|
|
// Viper will discover and load the configuration file from disk
|
|
// and key/value stores, searching in one of the defined paths.
|
|
func ReadInConfig() error { return v.ReadInConfig() }
|
|
func (v *Viper) ReadInConfig() error {
|
|
jww.INFO.Println("Attempting to read in config file")
|
|
if !stringInSlice(v.getConfigType(), SupportedExts) {
|
|
return UnsupportedConfigError(v.getConfigType())
|
|
}
|
|
|
|
file, err := ioutil.ReadFile(v.getConfigFile())
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
v.marshalReader(bytes.NewReader(file), v.config)
|
|
return nil
|
|
}
|
|
|
|
func ReadRemoteConfig() error { return v.ReadRemoteConfig() }
|
|
func (v *Viper) ReadRemoteConfig() error {
|
|
err := v.getKeyValueConfig()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Marshall a Reader into a map
|
|
// Should probably be an unexported function
|
|
func marshalReader(in io.Reader, c map[string]interface{}) { v.marshalReader(in, c) }
|
|
func (v *Viper) marshalReader(in io.Reader, c map[string]interface{}) {
|
|
marshallConfigReader(in, c, v.getConfigType())
|
|
}
|
|
|
|
func (v *Viper) insensitiviseMaps() {
|
|
insensitiviseMap(v.config)
|
|
insensitiviseMap(v.defaults)
|
|
insensitiviseMap(v.override)
|
|
insensitiviseMap(v.kvstore)
|
|
}
|
|
|
|
// retrieve the first found remote configuration
|
|
func (v *Viper) getKeyValueConfig() error {
|
|
for _, rp := range v.remoteProviders {
|
|
val, err := v.getRemoteConfig(rp)
|
|
if err != nil {
|
|
continue
|
|
}
|
|
v.kvstore = val
|
|
return nil
|
|
}
|
|
return RemoteConfigError("No Files Found")
|
|
}
|
|
|
|
func (v *Viper) getRemoteConfig(provider *remoteProvider) (map[string]interface{}, error) {
|
|
var cm crypt.ConfigManager
|
|
var err error
|
|
|
|
if provider.secretKeyring != "" {
|
|
kr, err := os.Open(provider.secretKeyring)
|
|
defer kr.Close()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if provider.provider == "etcd" {
|
|
cm, err = crypt.NewEtcdConfigManager([]string{provider.endpoint}, kr)
|
|
} else {
|
|
cm, err = crypt.NewConsulConfigManager([]string{provider.endpoint}, kr)
|
|
}
|
|
} else {
|
|
if provider.provider == "etcd" {
|
|
cm, err = crypt.NewStandardEtcdConfigManager([]string{provider.endpoint})
|
|
} else {
|
|
cm, err = crypt.NewStandardConsulConfigManager([]string{provider.endpoint})
|
|
}
|
|
}
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
b, err := cm.Get(provider.path)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
reader := bytes.NewReader(b)
|
|
v.marshalReader(reader, v.kvstore)
|
|
return v.kvstore, err
|
|
}
|
|
|
|
// Return all keys regardless where they are set
|
|
func AllKeys() []string { return v.AllKeys() }
|
|
func (v *Viper) AllKeys() []string {
|
|
m := map[string]struct{}{}
|
|
|
|
for key, _ := range v.defaults {
|
|
m[key] = struct{}{}
|
|
}
|
|
|
|
for key, _ := range v.config {
|
|
m[key] = struct{}{}
|
|
}
|
|
|
|
for key, _ := range v.kvstore {
|
|
m[key] = struct{}{}
|
|
}
|
|
|
|
for key, _ := range v.override {
|
|
m[key] = struct{}{}
|
|
}
|
|
|
|
a := []string{}
|
|
for x, _ := range m {
|
|
a = append(a, x)
|
|
}
|
|
|
|
return a
|
|
}
|
|
|
|
// Return all settings as a map[string]interface{}
|
|
func AllSettings() map[string]interface{} { return v.AllSettings() }
|
|
func (v *Viper) AllSettings() map[string]interface{} {
|
|
m := map[string]interface{}{}
|
|
for _, x := range v.AllKeys() {
|
|
m[x] = v.Get(x)
|
|
}
|
|
|
|
return m
|
|
}
|
|
|
|
// Name for the config file.
|
|
// Does not include extension.
|
|
func SetConfigName(in string) { v.SetConfigName(in) }
|
|
func (v *Viper) SetConfigName(in string) {
|
|
if in != "" {
|
|
v.configName = in
|
|
}
|
|
}
|
|
|
|
func SetConfigType(in string) { v.SetConfigType(in) }
|
|
func (v *Viper) SetConfigType(in string) {
|
|
if in != "" {
|
|
v.configType = in
|
|
}
|
|
}
|
|
|
|
func (v *Viper) getConfigType() string {
|
|
if v.configType != "" {
|
|
return v.configType
|
|
}
|
|
|
|
cf := v.getConfigFile()
|
|
ext := filepath.Ext(cf)
|
|
|
|
if len(ext) > 1 {
|
|
return ext[1:]
|
|
} else {
|
|
return ""
|
|
}
|
|
}
|
|
|
|
func (v *Viper) getConfigFile() string {
|
|
// if explicitly set, then use it
|
|
if v.configFile != "" {
|
|
return v.configFile
|
|
}
|
|
|
|
cf, err := v.findConfigFile()
|
|
if err != nil {
|
|
return ""
|
|
}
|
|
|
|
v.configFile = cf
|
|
return v.getConfigFile()
|
|
}
|
|
|
|
func (v *Viper) searchInPath(in string) (filename string) {
|
|
jww.DEBUG.Println("Searching for config in ", in)
|
|
for _, ext := range SupportedExts {
|
|
jww.DEBUG.Println("Checking for", filepath.Join(in, v.configName+"."+ext))
|
|
if b, _ := exists(filepath.Join(in, v.configName+"."+ext)); b {
|
|
jww.DEBUG.Println("Found: ", filepath.Join(in, v.configName+"."+ext))
|
|
return filepath.Join(in, v.configName+"."+ext)
|
|
}
|
|
}
|
|
|
|
return ""
|
|
}
|
|
|
|
// search all configPaths for any config file.
|
|
// Returns the first path that exists (and is a config file)
|
|
func (v *Viper) findConfigFile() (string, error) {
|
|
jww.INFO.Println("Searching for config in ", v.configPaths)
|
|
|
|
for _, cp := range v.configPaths {
|
|
file := v.searchInPath(cp)
|
|
if file != "" {
|
|
return file, nil
|
|
}
|
|
}
|
|
|
|
// try the current working directory
|
|
wd, _ := os.Getwd()
|
|
file := v.searchInPath(wd)
|
|
if file != "" {
|
|
return file, nil
|
|
}
|
|
return "", fmt.Errorf("config file not found in: %s", v.configPaths)
|
|
}
|
|
|
|
func Debug() { v.Debug() }
|
|
func (v *Viper) Debug() {
|
|
fmt.Println("Config:")
|
|
pretty.Println(v.config)
|
|
fmt.Println("Key/Value Store:")
|
|
pretty.Println(v.kvstore)
|
|
fmt.Println("Env:")
|
|
pretty.Println(v.env)
|
|
fmt.Println("Defaults:")
|
|
pretty.Println(v.defaults)
|
|
fmt.Println("Override:")
|
|
pretty.Println(v.override)
|
|
fmt.Println("Aliases:")
|
|
pretty.Println(v.aliases)
|
|
}
|