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benchmark old ns/op new ns/op delta BenchmarkProcessor_Run/single_object-12 15686 8051 -48.67% BenchmarkProcessor_Run/nested_and_array_object-12 39098 20540 -47.47% benchmark old allocs new allocs delta BenchmarkProcessor_Run/single_object-12 158 75 -52.53% BenchmarkProcessor_Run/nested_and_array_object-12 374 184 -50.80% benchmark old bytes new bytes delta BenchmarkProcessor_Run/single_object-12 8597 3520 -59.06% BenchmarkProcessor_Run/nested_and_array_object-12 19798 7824 -60.48% benchmark old ns/op new ns/op delta BenchmarkProcessor_Run/single_object-12 15686 8051 -48.67% BenchmarkProcessor_Run/nested_and_array_object-12 39098 20540 -47.47% benchmark old allocs new allocs delta BenchmarkProcessor_Run/single_object-12 158 75 -52.53% BenchmarkProcessor_Run/nested_and_array_object-12 374 184 -50.80% benchmark old bytes new bytes delta BenchmarkProcessor_Run/single_object-12 8597 3520 -59.06% BenchmarkProcessor_Run/nested_and_array_object-12 19798 7824 -60.48%
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,120 @@ | ||
| // Licensed to Elasticsearch B.V. under one or more contributor | ||
| // license agreements. See the NOTICE file distributed with | ||
| // this work for additional information regarding copyright | ||
| // ownership. Elasticsearch B.V. licenses this file to you 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 xml | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "encoding/xml" | ||
| "io" | ||
| "strings" | ||
| ) | ||
|
|
||
| // A Decoder reads and decodes XML from an input stream. | ||
| type Decoder struct { | ||
| prependHyphenToAttr bool | ||
| lowercaseKeys bool | ||
| xmlDec *xml.Decoder | ||
| } | ||
|
|
||
| // NewDecoder returns a new decoder that reads from r. | ||
| func NewDecoder(r io.Reader) *Decoder { | ||
| return &Decoder{xmlDec: xml.NewDecoder(r)} | ||
| } | ||
|
|
||
| // PrependHyphenToAttr causes the Decoder to prepend a hyphen ('-') to to all | ||
| // XML attribute names. | ||
| func (d *Decoder) PrependHyphenToAttr() { d.prependHyphenToAttr = true } | ||
|
|
||
| // LowercaseKeys causes the Decoder to transform all key name to lowercase. | ||
| func (d *Decoder) LowercaseKeys() { d.lowercaseKeys = true } | ||
|
|
||
| // Decode reads XML from the input stream and return a map containing the data. | ||
| func (d *Decoder) Decode() (map[string]interface{}, error) { | ||
| _, m, err := d.decode(nil) | ||
| return m, err | ||
| } | ||
|
|
||
| func (d *Decoder) decode(attrs []xml.Attr) (string, map[string]interface{}, error) { | ||
| elements := map[string]interface{}{} | ||
| var cdata string | ||
|
|
||
| for { | ||
| t, err := d.xmlDec.Token() | ||
| if err != nil { | ||
| if err == io.EOF { | ||
| return "", elements, nil | ||
| } | ||
| return "", nil, err | ||
| } | ||
|
|
||
| switch elem := t.(type) { | ||
| case xml.StartElement: | ||
| cdata, subElements, err := d.decode(elem.Attr) | ||
| if err != nil { | ||
| return "", nil, err | ||
| } | ||
|
|
||
| // Combine sub-elements and cdata. | ||
| var add interface{} = subElements | ||
| if len(subElements) == 0 { | ||
| add = cdata | ||
| } else if len(cdata) > 0 { | ||
| subElements["#text"] = cdata | ||
| } | ||
|
|
||
| // Add the data to the current object while taking into account | ||
| // if the current key already exists (in the case of lists). | ||
| key := d.key(elem.Name.Local) | ||
| value := elements[elem.Name.Local] | ||
| switch v := value.(type) { | ||
| case nil: | ||
| elements[key] = add | ||
| case []interface{}: | ||
| elements[key] = append(v, add) | ||
| default: | ||
| elements[key] = []interface{}{v, add} | ||
| } | ||
| case xml.CharData: | ||
| cdata = string(bytes.TrimSpace(elem.Copy())) | ||
| case xml.EndElement: | ||
| d.addAttributes(attrs, elements) | ||
| return cdata, elements, nil | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func (d *Decoder) addAttributes(attrs []xml.Attr, m map[string]interface{}) { | ||
| for _, attr := range attrs { | ||
| key := d.attrKey(attr.Name.Local) | ||
| m[key] = attr.Value | ||
| } | ||
| } | ||
|
|
||
| func (d *Decoder) key(in string) string { | ||
| if d.lowercaseKeys { | ||
| return strings.ToLower(in) | ||
| } | ||
| return in | ||
| } | ||
|
|
||
| func (d *Decoder) attrKey(in string) string { | ||
| if d.prependHyphenToAttr { | ||
| return d.key("-" + in) | ||
| } | ||
| return d.key(in) | ||
| } |
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