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/*
* Copyright 2018 Intel Corporation, Inc
*
* 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.
*/
package api
import (
"errors"
"github.com/magiconair/properties"
"io/ioutil"
"log"
"os"
"sync"
)
type KeyValuesInterface interface {
WriteKVsToConsul(string, string) error
ConfigReader(string, string, string) error
ReadMultiplePropertiesRecursive(string) error
ReadMultipleProperties(string) error
ReadProperty(string) error
}
type KeyValuesStruct struct {
sync.RWMutex
kvs map[string]string
}
var KeyValues KeyValuesInterface
func (kvStruct *KeyValuesStruct) WriteKVsToConsul(token string, subdomain string) error {
var prefix = ""
if subdomain != "" {
prefix += token + "/" + subdomain
} else {
prefix += token + "/"
}
for key, value := range kvStruct.kvs {
key = prefix + key
err := Consul.RequestPUT(key, value)
if err != nil {
return err
}
log.Println("[INFO] Key: ", key, "| Value: ", value)
}
log.Println("[INFO] Wrote KVs to Consul.")
return nil
}
func (kvStruct *KeyValuesStruct) ConfigReader(token string, subdomain string, filename string) error {
defer kvStruct.Unlock()
kvStruct.Lock()
var filepath = MOUNTPATH
if filename != "" && subdomain != "" {
// Specific file in specific domain.
filepath += token + "/" + subdomain + "/" + filename
err := kvStruct.ReadProperty(filepath)
if err != nil {
return err
}
return nil
}
if filename != "" && subdomain == "" {
// Specific file in Token
filepath += token + "/" + filename
err := kvStruct.ReadProperty(filepath)
if err != nil {
return err
}
return nil
}
if filename == "" && subdomain != "" {
// All files in specific domain
filepath += token + "/" + subdomain
err := kvStruct.ReadMultipleProperties(filepath)
if err != nil {
return err
}
}
filepath += token
err := kvStruct.ReadMultiplePropertiesRecursive(filepath)
if err != nil {
return err
}
return nil
}
func (kvStruct *KeyValuesStruct) ReadMultiplePropertiesRecursive(path string) error {
// Go inside each sub directory and run ReadMultipleProperties inside.
files, err := ioutil.ReadDir(path)
if err != nil {
return err
}
for _, f := range files {
fi, _ := os.Stat(path + "/" + f.Name())
if fi.Mode().IsDir() {
kvStruct.ReadMultipleProperties(path + "/" + f.Name())
} else {
kvStruct.ReadProperty(path + "/" + f.Name())
}
}
return nil
}
func (kvStruct *KeyValuesStruct) ReadMultipleProperties(path string) error {
files, err := ioutil.ReadDir(path)
if err != nil {
return err
}
for _, f := range files {
kvStruct.ReadProperty(path + f.Name())
}
return nil
}
func (kvStruct *KeyValuesStruct) ReadProperty(path string) error {
_, err := os.Stat(path)
if err != nil {
return errors.New("File does not exists.")
}
p := properties.MustLoadFile(path, properties.UTF8)
for _, key := range p.Keys() {
kvStruct.kvs[key] = p.MustGet(key)
}
return nil
}
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