ezs
functions for Lodex.
A collection of This package cannot be used alone. ezs has to be installed
Usage
import ezs from 'ezs';
import lodex from 'ezs-lodex';
ezs.use(lodex);
process.stdin
.pipe(ezs('flattenPatch'))
.pipe(process.stdout);
Statements
Table of Contents
- convertJsonLdToNQuads
- convertToAtom
- convertToExtendedJsonLd
- Field
- extractIstexQuery
- getParam
- flattenPatch
- getLastCharacteristic
- keyMapping
- objects2columns
- parseNQuads
- writeTurtle
convertJsonLdToNQuads
Take a JSON-LD object and transform it into NQuads triples.
Returns String
convertToAtom
Generate an atom XML feed from a resources feed, the LODEX configuration and model.
Parameters
-
fields
Object LODEX model (optional, default{}
) -
atomFeed
Feed A feed of resources, see feed (optional, default{}
) -
config
Object LODEX configuration (withperPage
) (optional, default{}
)
Returns String
convertToExtendedJsonLd
Convert the result of an ISTEX query to an extended JSON-LD.
Every hit must contain the URI of original lodex resource, linked to the query.
Parameters
-
schemeForIstexQuery
string URI to put between document and resource
Field
Properties
extractIstexQuery
Extract an ISTEX API query.
Parameters
Examples
Output:
{
content: 'fake query',
lodex: {
uri: 'http://resource.uri',
},
}
getParam
flattenPatch
Take Object
and transform all key ending byu number on array.
Returns Object
getLastCharacteristic
Get last characteristic (list of all dataset covering fields).
Examples
Input:
[
{
"_id" : ObjectId("5ca32c64019f45001d2b602d"),
"publicationDate" : ISODate("2019-04-02T09:33:24.463Z")
},
{
"_id" : ObjectId("5cee50bb019f45001d2b602f"),
"publicationDate" : ISODate("2019-05-29T09:28:27.773Z")
},
{
"_id" : ObjectId("5cee5119019f45001d2b6031"),
"publicationDate" : ISODate("2019-05-29T09:30:01.319Z")
},
{
"_id" : ObjectId("5cee5153019f45001d2b6032"),
"publicationDate" : ISODate("2019-05-29T09:30:59.770Z")
},
{
"_id" : ObjectId("5cee5160019f45001d2b6033"),
"publicationDate" : ISODate("2019-05-29T09:31:12.503Z")
},
{
"_id" : ObjectId("5cee530e3e9676001909ba24"),
"publicationDate" : ISODate("2019-05-29T09:38:22.569Z")
}
]
Output:
{
"_id" : ObjectId("5cee530e3e9676001909ba24"),
"publicationDate" : ISODate("2019-05-29T09:38:22.569Z")
}
Returns any
keyMapping
Take an object and map its keys to the one in mapping parameters.
Keep keys absent in from
parameter.
Parameters
Examples
Input:
[{
"dFgH": "Value",
"AaAa": "Value 2"
}]
EZS:
[keyMapping]
from = dFgH
to = Title
from = AaAa
to = Description
Output
[{
"Title": "Value",
"Description": "Value 2"
}]
Returns any Same object with modified keys
objects2columns
Take Object
and ...
Returns Object
parseNQuads
Take N-Quads string and transform it to Objects.
Returns Object
writeTurtle
Take quad or prefixes object and return turtle string.
Examples
Input:
[{
quad: {
subject: { id: 'http://uri/janedoe' },
predicate: { id: 'http://schema.org/jobTitle' },
object: { id: '"Professor"' }
}
}, {
quad: {
subject: { id: 'http://uri/janedoe' },
predicate: { id: 'http://schema.org/name' },
object: { id: '"Jane Doe"' }
}
}, {
quad: {
subject: { id: 'http://uri/janedoe' },
predicate: { id: 'http://schema.org/telephone' },
object: { id: '"(425) 123-4567"' }
}
}, {
quad: {
subject: { id: 'http://uri/janedoe' },
predicate: { id: 'http://schema.org/url' },
object: { id: 'http://www.janedoe.com' }
}
}, {
quad: {
subject: { id: 'http://uri/janedoe' },
predicate: { id: 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type' },
object: { id: 'http://schema.org/Person' }
}
}, { prefixes: {} }
]
Output:
'@prefix schema: <http://schema.org/>.\n'
'@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.\n'
'\n'
'<http://uri/janedoe> schema:jobTitle "Professor";\n'
' schema:name "Jane Doe";\n'
' schema:telephone "(425) 123-4567";\n'
' schema:url <http://www.janedoe.com>;\n'
' a schema:Person.\n"'
Returns String turtle