mirror of https://github.com/milvus-io/milvus.git
88 lines
2.2 KiB
Go
88 lines
2.2 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 autoindex
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import (
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"fmt"
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"strconv"
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"sync"
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"encoding/json"
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)
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type Parser struct {
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rw sync.RWMutex
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methods sync.Map // map of level to Calculator
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}
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func NewParser() *Parser {
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return &Parser{
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methods: sync.Map{},
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}
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}
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func (p *Parser) InitFromJSONStr(value string) error {
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valueMap := make(map[string]interface{})
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err := json.Unmarshal([]byte(value), &valueMap)
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if err != nil {
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return fmt.Errorf("init autoindex parser failed:%w", err)
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}
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return p.InitFromMap(valueMap)
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}
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func (p *Parser) InitFromMap(values map[string]interface{}) error {
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p.rw.Lock()
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defer p.rw.Unlock()
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p.methods = sync.Map{}
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var err error
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var cnt int
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for levelStr, value := range values {
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valueMap, ok := value.(map[string]interface{})
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if !ok {
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return fmt.Errorf("parse params failed, wrong format")
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}
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var level int
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level, err = strconv.Atoi(levelStr)
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if err != nil {
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return fmt.Errorf("parse level failed, woring format")
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}
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var method Calculator
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method, err = newMethodNormalFromMap(valueMap)
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if err != nil {
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method, err = newMethodPieceWiseFromMap(valueMap)
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}
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if err != nil {
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return fmt.Errorf("parse method failed %w", err)
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}
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p.methods.Store(level, method)
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cnt++
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}
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if cnt == 0 {
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return fmt.Errorf("parse method failed: empty")
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}
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return nil
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}
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func (p *Parser) GetMethodByLevel(level int) (Calculator, bool) {
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m, ok := p.methods.Load(level)
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if !ok {
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return nil, false
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}
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return m.(Calculator), true
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}
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