65 lines
1.7 KiB
Go
65 lines
1.7 KiB
Go
// Copyright (c) 2014 Couchbase, Inc.
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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// except in compliance with the License. You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software distributed under the
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// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific language governing permissions
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// and limitations under the License.
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package shredder
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import (
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"encoding/json"
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"strconv"
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"github.com/couchbaselabs/bleve/document"
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)
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// A simple automatic JSON shredder which parses the whole document body.
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// Any strings found in the JSON are added as text fields
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type AutoJsonShredder struct {
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}
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func NewAutoJsonShredder() *AutoJsonShredder {
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return &AutoJsonShredder{}
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}
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func (s *AutoJsonShredder) Shred(id string, body []byte) (*document.Document, error) {
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rv := document.NewDocument(id)
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var section interface{}
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err := json.Unmarshal(body, §ion)
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if err != nil {
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return nil, err
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}
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shredSection(rv, section, "")
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return rv, nil
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}
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func shredSection(doc *document.Document, section interface{}, parent string) {
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nextParent := parent
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if nextParent != "" {
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nextParent = nextParent + "."
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}
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switch section := section.(type) {
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case string:
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f := document.NewTextField(parent, []byte(section))
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doc.AddField(f)
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case []interface{}:
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for i, sub := range section {
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shredSection(doc, sub, nextParent+strconv.Itoa(i))
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}
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case map[string]interface{}:
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for k, sub := range section {
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shredSection(doc, sub, nextParent+k)
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}
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}
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}
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