OXML
OXML is a fast XML to Hash parser and a Hash to XML builder, built on top of the Ox gem (a native C extension).
XML parser [ XML -> Hash ]
require 'oxml'
options = {
strip_namespaces: true || false,
delete_namespace_attributes: true || false,
advanced_typecasting: true || false, # see benchmarks below for how much it slows down the parsing
skip_soap_elements: true || false,
}xml = %(
<nodes xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="ns4:ServiceProtocol">
<services>
<serviceId>
<id>100</id>
<statusId>400</statusId>
</serviceId>
<updateId>500</updateId>
</services>
<time>2023-10-20T05:05:00.000+01:00</time>
<type>
<id>9000</id>
<mode>
<id>2828288</id>
<protocol>7000</protocol>
</mode>
</type>
<informations>2</informations>
<informations>17</informations>
</nodes>
<nodes xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="ns4:ServiceShop">
<services>
<serviceId>
<id>400</id>
<statusId>500</statusId>
</serviceId>
<updateId>600</updateId>
</services>
<note>Text with extra spaces </note>
</nodes>
)OXML.parse(xml, options) # =>
{
nodes: [
{
"@xmlns:xsi": 'http://www.w3.org/2001/XMLSchema-instance',
"@xsi:type": 'ns4:ServiceProtocol',
services: [
{ service_id: { id: '100', status_id: '400' }, update_id: '500' },
],
time: '2023-10-20T05:05:00.000+01:00',
type: {
id: '9000', mode: { id: '2828288', protocol: '7000' }
},
informations: %w[2 17]
},
{
"@xmlns:xsi": 'http://www.w3.org/2001/XMLSchema-instance',
"@xsi:type": 'ns4:ServiceShop',
services: [
{ service_id: { id: '400', status_id: '500' }, update_id: '600' },
],
note: 'Text with extra spaces ',
}
]
}XML builder [ Hash -> XML ]
require 'oxml'
hash = {
'service' => {
"@xmlns:xsi": 'http://www.w3.org/2001/XMLSchema-instance',
"@xsi:type": 'ns4:ServiceProtocol',
'salePoint' => 578_920,
'status' => {
'noTransaction' => '2829999',
'codeState' => '1'
},
'nodes' => {
'node' => [1, 2, 3].map do |carrier|
{
'noCarrier' => carrier,
'typePlace' => '100'
}
end
}
}
}
OXML.build(hash) # => see the XML below<service xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="ns4:ServiceProtocol">
<salePoint>578920</salePoint>
<status>
<noTransaction>2829999</noTransaction>
<codeState>1</codeState>
</status>
<nodes>
<node>
<noCarrier>1</noCarrier>
<typePlace>100</typePlace>
</node>
<node>
<noCarrier>2</noCarrier>
<typePlace>100</typePlace>
</node>
<node>
<noCarrier>3</noCarrier>
<typePlace>100</typePlace>
</node>
</nodes>
</service>Benchmarks
XML -> Hash:
user system total real
xmlsimple 0.490771 0.008862 0.499633 ( 0.499655)
activesupport w/ rexml 0.448687 0.003989 0.452676 ( 0.452696)
nori 0.113621 0.008683 0.122304 ( 0.122346)
activesupport w/ nokogiri 0.065353 0.001130 0.066483 ( 0.066483)
activesupport w/ libxml 0.052111 0.000889 0.053000 ( 0.053017)
oxml (advanced_typecasting: true) 0.049945 0.000629 0.050574 ( 0.050580)
oxml 0.030597 0.000314 0.030911 ( 0.030916)
Hash -> XML:
user system total real
gyoku 0.132535 0.002074 0.134609 ( 0.134613)
oxml 0.044027 0.000907 0.044934 ( 0.044937)