mirror of
https://gitee.com/milvus-io/milvus.git
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fc8061bb86
Signed-off-by: Enwei Jiao <enwei.jiao@zilliz.com> Signed-off-by: Enwei Jiao <enwei.jiao@zilliz.com>
121 lines
2.9 KiB
Go
121 lines
2.9 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. 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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package config
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import (
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"errors"
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"fmt"
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"os"
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"sync"
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"github.com/milvus-io/milvus/internal/log"
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"github.com/spf13/cast"
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"github.com/spf13/viper"
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"go.uber.org/zap"
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)
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type FileSource struct {
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sync.RWMutex
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file string
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configs map[string]string
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}
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func NewFileSource(file string) *FileSource {
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fs := &FileSource{file: file, configs: make(map[string]string)}
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fs.loadFromFile()
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return fs
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}
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// GetConfigurationByKey implements ConfigSource
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func (fs *FileSource) GetConfigurationByKey(key string) (string, error) {
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v, ok := fs.configs[key]
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if !ok {
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return "", fmt.Errorf("key not found: %s", key)
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}
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return v, nil
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}
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// GetConfigurations implements ConfigSource
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func (fs *FileSource) GetConfigurations() (map[string]string, error) {
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configMap := make(map[string]string)
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fs.Lock()
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defer fs.Unlock()
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for k, v := range fs.configs {
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configMap[k] = v
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}
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return configMap, nil
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}
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// GetPriority implements ConfigSource
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func (fs *FileSource) GetPriority() int {
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return LowPriority
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}
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// GetSourceName implements ConfigSource
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func (fs *FileSource) GetSourceName() string {
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return "FileSource"
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}
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func (fs *FileSource) Close() {
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}
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func (fs *FileSource) loadFromFile() error {
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yamlReader := viper.New()
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configFile := fs.file
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if _, err := os.Stat(configFile); err != nil {
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return errors.New("cannot access config file: " + configFile)
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}
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yamlReader.SetConfigFile(configFile)
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if err := yamlReader.ReadInConfig(); err != nil {
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log.Warn("Read config failed", zap.Error(err))
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return err
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}
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for _, key := range yamlReader.AllKeys() {
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val := yamlReader.Get(key)
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str, err := cast.ToStringE(val)
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if err != nil {
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switch val := val.(type) {
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case []interface{}:
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str = str[:0]
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for _, v := range val {
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ss, err := cast.ToStringE(v)
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if err != nil {
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log.Warn("cast to string failed", zap.Any("value", v))
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}
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if str == "" {
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str = ss
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} else {
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str = str + "," + ss
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}
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}
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default:
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log.Warn("val is not a slice", zap.Any("value", val))
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continue
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}
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}
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fs.Lock()
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fs.configs[key] = str
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fs.configs[formatKey(key)] = str
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fs.Unlock()
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}
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return nil
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}
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