98 lines
2.2 KiB
Go
98 lines
2.2 KiB
Go
/*
|
|
* Copyright 2025 coze-dev Authors
|
|
*
|
|
* 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 builtin
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"fmt"
|
|
"io"
|
|
|
|
"github.com/cloudwego/eino/components/document/parser"
|
|
"github.com/cloudwego/eino/schema"
|
|
|
|
contract "github.com/coze-dev/coze-studio/backend/infra/contract/document/parser"
|
|
)
|
|
|
|
func ParseJSON(config *contract.Config) ParseFn {
|
|
return func(ctx context.Context, reader io.Reader, opts ...parser.Option) (docs []*schema.Document, err error) {
|
|
b, err := io.ReadAll(reader)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var rawSlices []map[string]string
|
|
if err = json.Unmarshal(b, &rawSlices); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if len(rawSlices) == 0 {
|
|
return nil, fmt.Errorf("[ParseJSON] json data is empty")
|
|
}
|
|
|
|
var header []string
|
|
if config.ParsingStrategy.IsAppend {
|
|
for _, col := range config.ParsingStrategy.Columns {
|
|
header = append(header, col.Name)
|
|
}
|
|
} else {
|
|
for k := range rawSlices[0] {
|
|
// Init takes the random order of keys in the first json item
|
|
header = append(header, k)
|
|
}
|
|
}
|
|
|
|
iter := &jsonIterator{
|
|
header: header,
|
|
rows: rawSlices,
|
|
i: 0,
|
|
}
|
|
|
|
return parseByRowIterator(iter, config, opts...)
|
|
}
|
|
}
|
|
|
|
type jsonIterator struct {
|
|
header []string
|
|
rows []map[string]string
|
|
i int
|
|
}
|
|
|
|
func (j *jsonIterator) NextRow() (row []string, end bool, err error) {
|
|
if j.i == 0 {
|
|
j.i++
|
|
return j.header, false, nil
|
|
}
|
|
|
|
if j.i == len(j.rows)+1 {
|
|
return nil, true, nil
|
|
}
|
|
|
|
raw := j.rows[j.i-1]
|
|
j.i++
|
|
for _, h := range j.header {
|
|
val, found := raw[h]
|
|
if !found {
|
|
row = append(row, "")
|
|
} else {
|
|
row = append(row, val)
|
|
}
|
|
}
|
|
|
|
return row, false, nil
|
|
}
|