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xsd2json.xqy
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xsd2json.xqy
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xquery version "3.1";
(:~
This XQuery library module transforms an XML Schema to a JSON Schema equivalent.
NOTE: This is a work in progress. I would appreciate any comments to make it more robust.
To execute the transformation, place the followin in another XQuery module.
xquery version "3.1";
import module namespace xsd2json="http://easymetahub.com/ns/xsd2json" at "xsd2json.xqy";
declare namespace map = "http://www.w3.org/2005/xpath-functions/map";
declare namespace output = "http://www.w3.org/2010/xslt-xquery-serialization";
declare namespace xs="http://www.w3.org/2001/XMLSchema";
declare option output:method "json";
declare option output:indent "yes";
xsd2json:run(.//xs:schema, map { } )
:)
module namespace xsd2json="http://easymetahub.com/ns/xsd2json";
declare namespace map = "http://www.w3.org/2005/xpath-functions/map";
declare namespace xs="http://www.w3.org/2001/XMLSchema";
declare variable $xsd2json:RESTRICTIVE := 'restrictive';
declare variable $xsd2json:SCHEMAID := 'schemaId';
declare variable $xsd2json:KEEP_NAMESPACES := 'keepNamespaces';
declare variable $xsd2json:DATATYPES := ( 'string', 'normalizedString', 'token', 'base64Binary', 'hexBinary', 'integer', 'positiveInteger', 'negativeInteger', 'nonNegativeInteger', 'nonPositiveInteger', 'long', 'unsignedLong', 'int', 'unsignedInt', 'short', 'unsignedShort', 'byte', 'unsignedByte', 'decimal', 'float', 'double', 'duration', 'dateTime', 'date', 'time', 'gYear', 'gYearMonth', 'gMonth', 'gMonthDay', 'gDay', 'Name', 'QName', 'NCName', 'anyURI', 'language', 'ID', 'IDREF', 'IDREFS', 'ENTITY', 'ENTITIES', 'NMTOKEN', 'NMTOKENS', 'anySimpleType', 'anyType', 'token', 'decimal', 'boolean' );
declare function xsd2json:prefix-type($bases as map(*), $attr) {
let $value := xs:string($attr)
let $prefixed := fn:contains($value, ':')
return
if ($prefixed)
then
if (map:get($bases, fn:substring-before($value, ':')) = "http://www.w3.org/2001/XMLSchema")
then attribute { $attr/name() } { 'xs:' || fn:substring-after($value, ':') }
else $attr
else
if (map:get($bases, '') = "http://www.w3.org/2001/XMLSchema")
then
if ($xsd2json:DATATYPES = $value)
then attribute { $attr/name() } { 'xs:' || $value }
else $attr
else $attr
};
declare function xsd2json:change-element-ns-deep
( $nodes as node()* ,
$newns as xs:string ,
$prefix as xs:string ) as node()* {
for $node in $nodes
let $bases := map:merge((
for $prefix in fn:in-scope-prefixes($node/ancestor-or-self::xs:schema)
return map:entry($prefix, xs:string(fn:namespace-uri-for-prefix($prefix, $node/ancestor-or-self::xs:schema)))
))
return if ($node instance of element())
then (element
{QName ($newns,
concat($prefix,
if ($prefix = '')
then ''
else ':',
local-name($node)))}
{
for $attr in $node/@*
return
switch ($attr/name())
case 'type' return xsd2json:prefix-type($bases, $attr)
case 'base' return xsd2json:prefix-type($bases, $attr)
default return $attr
,
xsd2json:change-element-ns-deep($node/node(),
$newns, $prefix)})
else if ($node instance of document-node())
then xsd2json:change-element-ns-deep($node/node(),
$newns, $prefix)
else $node
} ;
(:~
: This is called to transform an XML Schema (and imported + included) to a JSON Schema.
:
: The options that are supported are:
:
: 'keepNamespaces' - set to true if keeping prefices in the property names
: is required otherwise prefixes are eliminated.
: 'schemaId' - the name of the schema
:
: @author Loren Cahlander
: @version 1.0
: @param $base the base XML Schema to be transformed
: @param $options Options to control the transformation
:)
declare function xsd2json:run($base as node(), $options as map(*)) as map(*) {
let $m := map:merge((xsd2json:parse-level('target', $base, ()), $options))
let $base-w-includes := map:get($m, 'target')
let $referred-to-element-names := fn:distinct-values($base-w-includes//xs:element/@ref/string())
let $root-elements := $base-w-includes/xs:element[fn:not(./@name = $referred-to-element-names)]
return
map:merge((
map:entry('id', if (map:contains($options, $xsd2json:SCHEMAID)) then map:get($options, $xsd2json:SCHEMAID) || '#' else 'output.json#'),
map:entry('$schema', 'http://json-schema.org/draft-04/schema#'),
map:entry('version', '0.0.1'),
if (($base-w-includes/xs:complexType[@name], $base-w-includes/xs:simpleType[@name]))
then
(
map:entry('type', 'object'),
map:entry(
'definitions',
map:merge((
for $element in $base-w-includes/xs:complexType[@name]
return xsd2json:complexType($element, map:merge((map:entry('definitions', fn:true()), $m))),
for $element in $base-w-includes/xs:simpleType[@name]
return xsd2json:simpleType($element, map:merge((map:entry('definitions', fn:true()), $m)))
))
)
)
else
(),
if ((fn:count($root-elements) eq 1) and fn:not(($base-w-includes/xs:complexType[@name], $base-w-includes/xs:simpleType[@name])))
then
let $element := $root-elements
let $documentation := ($base-w-includes/xs:annotation/xs:documentation, $element/xs:annotation/xs:documentation, $element/xs:complexType/xs:annotation/xs:documentation)
return
(
xsd2json:documentation($documentation, map { }),
if ($element/@type)
then xsd2json:element-type($element, map:merge(($m, map:entry('noDoc', fn:true()))))
else (),
xsd2json:passthru($element, map:merge(($m, map:entry('noDoc', fn:true())))),
map:entry('additionalProperties', fn:ends-with($element/@type, 'anyType'))
)
else if (fn:count($root-elements) = 0)
then
map:merge((
xsd2json:documentation($base-w-includes/xs:annotation/xs:documentation, map { }),
map:entry('additionalProperties', fn:false()),
map:entry('type', 'object')
))
else if (fn:count($root-elements) gt 1)
then
(
xsd2json:documentation($base-w-includes/xs:annotation/xs:documentation, map { }),
map:entry(
'oneOf',
array {
for $element in $root-elements
return
map:merge((
map:entry('properties', xsd2json:element($element, $m)),
map:entry('additionalProperties', fn:false()),
map:entry('type', 'object'),
map:entry(
'required',
array {
$element/@name/string()
})
))
}
)
)
else
(
xsd2json:documentation($base-w-includes/xs:annotation/xs:documentation, map { }),
for $element in $root-elements
return
map:merge((
map:entry('properties', xsd2json:element($element, $m)),
map:entry('additionalProperties', fn:false()),
map:entry('type', 'object'),
map:entry(
'required',
array {
$element/@name/string()
})
))
)
))};
(:~
:
: Find a loaded schema based on the prefix of the QName.
:
: @author Loren Cahlander
: @version 1.0
: @param $qname the name of the item used to locate the schema
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:schema-from-qname($node as node(), $qname as xs:string, $model as map(*)) as node() {
let $ancestor := $node/ancestor::xs:schema
let $retval :=
if (fn:contains($qname, ':'))
then
let $prefix := fn:substring-before($qname, ':')
let $postfix := fn:substring-after($qname, ':')
let $ns := map:get($model, $prefix)
let $s := if (fn:exists($ns))
then map:get($model, $ns)
else ()
return
if (fn:exists($s))
then $s
else $ancestor
else $ancestor
return ($retval, map:get($model, 'target'))[1]
};
declare function xsd2json:is-xsd-datatype($name as xs:string) as xs:boolean {
try {
let $qname as xs:QName := xs:QName($name)
return (fn:namespace-uri-from-QName($qname) eq "http://www.w3.org/2001/XMLSchema")
} catch * {
let $prefix := fn:substring-before($name, ':')
return (('xs', 'xsd') = $prefix)
}
};
(:~
:
: Find prefix of the QName.
:
: @author Loren Cahlander
: @version 1.0
: @param $qname the name of the item used to locate the schema
:)
declare function xsd2json:prefix-from-qname($qname as xs:string) as xs:string? {
try {
fn:local-name-from-QName(xs:QName($qname))
} catch * {
fn:substring-before($qname, ':')
}
};
(:~
:
: Find postfix of the QName.
:
: @author Loren Cahlander
: @version 1.0
: @param $qname the name of the item used to locate the schema
:)
declare function xsd2json:postfix-from-qname($qname as xs:string) as xs:string? {
try {
fn:local-name-from-QName(xs:QName($qname))
} catch * {
if (fn:contains($qname, ':'))
then fn:substring-after($qname, ':')
else $qname
}
};
(:~
:
: Find a loaded schema based on the ref attribute of the node.
:
: @author Loren Cahlander
: @version 1.0
: @param $qname the name of the item used to locate the schema
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:schema-from-ref($node as node(), $model as map(*)) as node() {
xsd2json:schema-from-qname($node, $node/@ref, $model)
};
(:~
:
: Find postfix from the ref attribute of the node.
:
: @author Loren Cahlander
: @version 1.0
: @param $qname the name of the item used to locate the schema
:)
declare function xsd2json:postfix-from-ref($node as node()) as xs:string? {
xsd2json:postfix-from-qname($node/@ref)
};
(:~
:
: Copy of the FunctX method of the same name.
:
: @author Loren Cahlander
: @version 1.0
: @param $arg the string to trim
:)
declare function xsd2json:trim( $arg as xs:string? ) as xs:string {
replace(replace($arg,'\s+$',''),'^\s+','')
} ;
(:~
:
: Copy of the FunctX method of the same name.
:
: @author Loren Cahlander
: @version 1.0
: @param $arg the string to trim
: @param $regex the pattern to match
:)
declare function xsd2json:substring-before-last-match($arg as xs:string?, $regex as xs:string) as xs:string? {
replace($arg, concat('^(.*)', $regex, '.*'), '$1')
};
(:~
:
: Load an XML Schema from the listed path.
:
: @author Loren Cahlander
: @version 1.0
: @param $path the path to the XML Schema
:)
declare function xsd2json:loadSchema($path as xs:string) {
try {
xsd2json:change-element-ns-deep(fn:doc($path)/xs:schema, "http://www.w3.org/2001/XMLSchema", "xs")
} catch * {
'Falied to load ' || $path
}
};
(:~
:
: Lists all of the prefixes for the namespaces in the set of XML Schemas.
:
: @author Loren Cahlander
: @version 1.0
: @param $uri
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:prefixes-from-namespace($uri as xs:string?, $model as map(*)) as xs:string* {
map:for-each(
$model,
function($k, $v) {
try {
if (fn:starts-with($v, 'http:'))
then $k
else ()
} catch * {
()
}
}
)
};
declare function xsd2json:parse-level($ns as xs:string, $base, $namespaces as xs:string*) as map(*) {
let $baseuri := fn:base-uri($base)
let $cleansed-base := xsd2json:change-element-ns-deep($base, "http://www.w3.org/2001/XMLSchema", "xs")
let $included :=
try {
for $include in $cleansed-base/xs:include
let $loadPath := fn:concat(xsd2json:substring-before-last-match(xs:string($baseuri), '/'), '/', $include/@schemaLocation/string())
return
xsd2json:change-element-ns-deep(fn:doc($loadPath)//xs:schema/node(), "http://www.w3.org/2001/XMLSchema", "xs")
} catch * {
()
}
return
map:merge((
map:entry(xs:string($ns), element { $cleansed-base/name() } { $cleansed-base/@*, $cleansed-base/node(), $included }),
try {
for $prefix in fn:in-scope-prefixes($base)
let $trace := fn:trace($prefix, 'Prefix loaded: ')
return (
map:entry($prefix, fn:namespace-uri-for-prefix($prefix, $base))
)
} catch * {
()
},
try {
for $import in $base//xs:import
let $loadPath := fn:concat(xsd2json:substring-before-last-match(xs:string($baseuri), '/'), '/', $import/@schemaLocation/string())
return
if ($namespaces = $import/@namespace/string())
then map { }
else
xsd2json:parse-level(
$import/@namespace/string(),
xsd2json:loadSchema($loadPath), ($namespaces, $import/@namespace/string()))
} catch * {
()
}
))
};
(:~
: The most effective way to use the typeswitch expression to transform XML is to create a series of XQuery functions.
: In this way, we can cleanly separate the major actions of the transformation into modular functions. (In fact,
: the library of functions can be saved into an XQuery library module, which can then be reused by other XQueries.)
: The "magic" of this typeswitch-style transformation is that once you understand the basic pattern and structure of
: the functions, you can adapt them to your own data. You'll find that the structure is so modular and straightforward
: that it's even possible to teach others the basics of the pattern in a short period of time and empower them
: to maintain and update the transformation rules themselves.
:
: The first function in our module is where the typeswitch expression is located. This function is conventionally called
: the "dispatch" function
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:dispatch($node as node()?, $model as map(*)) as map(*) {
if ($node) then
typeswitch($node)
case element(xs:all) return xsd2json:all($node, $model)
case element(xs:annotation) return xsd2json:annotation($node, $model)
case element(xs:any) return xsd2json:any($node, $model)
case element(xs:anyAttribute) return xsd2json:anyAttribute($node, $model)
case element(xs:appinfo) return xsd2json:appinfo($node, $model)
case element(xs:attribute) return xsd2json:attribute($node, $model)
case element(xs:attributeGroup) return xsd2json:attributeGroup($node, $model)
case element(xs:choice) return xsd2json:choice($node, $model)
case element(xs:complexContent) return xsd2json:complexContent($node, $model)
case element(xs:complexType) return xsd2json:complexType($node, $model)
case element(xs:documentation) return xsd2json:documentation($node, $model)
case element(xs:element) return xsd2json:element($node, $model)
case element(xs:enumeration) return map { }
case element(xs:extension) return xsd2json:extension($node, $model)
case element(xs:field) return xsd2json:field($node, $model)
case element(xs:fractionDigits) return xsd2json:fractionDigits($node, $model)
case element(xs:group) return xsd2json:group($node, $model)
case element(xs:import) return xsd2json:import($node, $model)
case element(xs:include) return xsd2json:include($node, $model)
case element(xs:key) return xsd2json:key($node, $model)
case element(xs:keyref) return xsd2json:keyref($node, $model)
case element(xs:length) return xsd2json:length($node, $model)
case element(xs:list) return xsd2json:list($node, $model)
case element(xs:maxExclusive) return xsd2json:maxExclusive($node, $model)
case element(xs:maxInclusive) return xsd2json:maxInclusive($node, $model)
case element(xs:maxLength) return xsd2json:maxLength($node, $model)
case element(xs:minExclusive) return xsd2json:minExclusive($node, $model)
case element(xs:minInclusive) return xsd2json:minInclusive($node, $model)
case element(xs:minLength) return xsd2json:minLength($node, $model)
case element(xs:notation) return xsd2json:notation($node, $model)
case element(xs:pattern) return xsd2json:pattern($node, $model)
case element(xs:redefine) return xsd2json:redefine($node, $model)
case element(xs:restriction) return xsd2json:restriction($node, $model)
case element(xs:schema) return xsd2json:schema($node, $model)
case element(xs:selector) return xsd2json:selector($node, $model)
case element(xs:sequence) return xsd2json:sequence($node, $model)
case element(xs:simpleContent) return xsd2json:simpleContent($node, $model)
case element(xs:simpleType) return xsd2json:simpleType($node, $model)
case element(xs:totalDigits) return xsd2json:totalDigits($node, $model)
case element(xs:union) return xsd2json:union($node, $model)
case element(xs:unique) return xsd2json:unique($node, $model)
case element(xs:whiteSpace) return xsd2json:whiteSpace($node, $model)
default return xsd2json:passthru($node, $model)
else map { }
};
(:~
:
: The passthru() function recurses through a given node's children, handing each of them back to the main typeswitch operation.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:passthru($node as node()?, $model as map(*)) as map(*) {
map:merge(
if ($node)
then
if ($node/xs:annotation/xs:documentation)
then
(
xsd2json:documentation($node/xs:annotation/xs:documentation, $model),
for $cnode in $node/*
return xsd2json:dispatch($cnode, map:merge(($model, map { 'noDoc': fn:true() })))
)
else
for $cnode in $node/*
return xsd2json:dispatch($cnode, $model)
else ()
)
};
(:~
:
: Used for determining cardinality.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:require-dispatch($node as node()?, $model as map(*)) as xs:string* {
if ($node) then
typeswitch($node)
case element(xs:attribute) return xsd2json:require-attribute($node, $model)
case element(xs:attributeGroup) return xsd2json:require-attributeGroup($node, $model)
case element(xs:element) return xsd2json:require-element($node, $model)
case element(xs:complexType) return xsd2json:require-complexType($node, $model)
default return xsd2json:require-passthru($node, $model)
else ()
};
(:~
:
: Used for determining cardinality.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:require-passthru($node as node()?, $model as map(*)) as xs:string* {
if ($node) then for $cnode in $node/* return xsd2json:require-dispatch($cnode, $model) else ()
};
(:~
:
: Used for determining cardinality.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:require-attribute($node as node(), $model as map(*)) as xs:string? {
(: Attributes:
: Child Elements:
:)
if ($node/@name)
then
if (($node/@minOccurs/fn:number(.) = 1) or ($node[@use = 'required']))
then '@' || $node/@name/string(.)
else ()
else ()
};
(:~
:
: Used for determining cardinality.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:require-attributeGroup($node as node(), $model as map(*)) as xs:string* {
(: Attributes:
: Child Elements:
:)
if ($node/@name)
then
xsd2json:require-passthru($node, $model)
else
let $postfix := xsd2json:postfix-from-ref($node)
let $schema := xsd2json:schema-from-ref($node, $model)
return
if ($schema//xs:attributeGroup[@name = $postfix])
then
let $attribute := $schema//xs:attributeGroup[@name = $postfix]
return
if ($attribute)
then xsd2json:require-attributeGroup($attribute, $model)
else fn:error(xs:QName('xsd2json:err057'), 'missing attributeGroup', $postfix)
else ()
};
(:~
:
: Used for determining cardinality.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:require-complexType($node as node(), $model as map(*)) as xs:string? {
(: Attributes:
: Child Elements:
:)
()
};
(:~
:
: Used for determining cardinality.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:require-element($node as node(), $model as map(*)) as xs:string? {
(: Attributes:
: Child Elements:
:)
if ($node/@name)
then
if ($node/@minOccurs/fn:number(.) = 0)
then ()
else $node/@name/string(.)
else if ($node/@ref)
then
if ($node/@minOccurs/fn:number(.) = 0)
then ()
else fn:substring-after($node/@ref/string(.), ':')
else ()
};
(:~
:
: Used for determining cardinality.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:maxOccurs-dispatch($node as node()?, $model as map(*)) as map(*) {
if ($node) then
typeswitch($node)
case element(xs:element) return xsd2json:maxOccurs-element($node, $model)
default return xsd2json:maxOccurs-passthru($node, $model)
else map { }
};
(:~
:
: Used for determining cardinality.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:maxOccurs-passthru($node as node()?, $model as map(*)) as map(*) {
map:merge(if ($node) then for $cnode in $node/* return xsd2json:maxOccurs-dispatch($cnode, $model) else ())
};
(:~
:
: Used for determining cardinality.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:maxOccurs-element($node as node(), $model as map(*)) as map(*) {
(: Attributes:
: Child Elements:
:)
if ($node/@name)
then
let $count :=
if ($node/@maxOccurs)
then
if ($node/@maxOccurs/fn:string(.) = 'unbounded')
then 999999999999999
else xs:integer($node/@maxOccurs)
else 1
let $preceding-count :=
for $pnode in $node/following-sibling::xs:element[@name = $node/@name]
return
if ($pnode/@maxOccurs)
then
if ($pnode/@maxOccurs/fn:string(.) = 'unbounded')
then 999999999999999
else xs:integer($pnode/@maxOccurs)
else 1
let $total-count := fn:sum(($count, $preceding-count), 0)
return
map:entry($node/@name/string(.), if ($total-count ge 999999999999999) then 'unbounded' else xs:string($total-count))
else
let $count :=
if ($node/@maxOccurs)
then
if ($node/@maxOccurs/fn:string(.) = 'unbounded')
then 999999999999999
else xs:integer($node/@maxOccurs)
else 1
let $preceding-count :=
for $pnode in $node/following-sibling::xs:element[@ref = $node/@ref]
return
if ($pnode/@maxOccurs)
then
if ($pnode/@maxOccurs/fn:string(.) = 'unbounded')
then 999999999999999
else xs:integer($pnode/@maxOccurs)
else 1
let $total-count := fn:sum(($count, $preceding-count), 0)
return
map:entry($node/@ref/string(.), if ($total-count ge 999999999999999) then 'unbounded' else xs:string($total-count))
};
(:~
:
: Used for determining cardinality.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:minOccurs-dispatch($node as node()?, $model as map(*)) as map(*) {
if ($node) then
typeswitch($node)
case element(xs:element) return xsd2json:minOccurs-element($node, $model)
case element(xs:attribute) return xsd2json:minOccurs-attribute($node, $model)
case element(xs:attributeGroup) return xsd2json:minOccurs-attributeGroup($node, $model)
default return xsd2json:minOccurs-passthru($node, $model)
else map { }
};
(:~
:
: Used for determining cardinality.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:minOccurs-passthru($node as node()?, $model as map(*)) as map(*) {
map:merge(if ($node) then for $cnode in $node/* return xsd2json:minOccurs-dispatch($cnode, $model) else ())
};
(:~
:
: Used for determining cardinality.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:minOccurs-element($node as node(), $model as map(*)) as map(*) {
(: Attributes:
: Child Elements:
:)
map:merge((
if ($node/@name)
then
let $count :=
if ($node/@minOccurs)
then xs:integer($node/@minOccurs)
else 1
let $preceding-count :=
for $pnode in $node/following-sibling::xs:element[@name = $node/@name]
return
if ($pnode/@minOccurs)
then xs:integer($pnode/@minOccurs)
else 1
let $total-count := fn:sum(($count, $preceding-count), 0)
return
map:entry($node/@name/string(.), $total-count)
else
let $count :=
if ($node/@minOccurs)
then xs:integer($node/@minOccurs)
else 1
let $preceding-count :=
for $pnode in $node/following-sibling::xs:element[@ref = $node/@ref]
return
if ($pnode/@minOccurs)
then xs:integer($pnode/@minOccurs)
else 1
let $total-count := fn:sum(($count, $preceding-count), 0)
return
map:entry($node/@ref/string(.), $total-count),
for $attributeGroup in $node/xs:attributeGroup
return xsd2json:minOccurs-attributeGroup($attributeGroup, $model),
for $attribute in $node/xs:attribute
return xsd2json:minOccurs-attribute($attribute, $model)
))
};
(:~
:
: Used for determining cardinality.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:minOccurs-attributeGroup($node as node(), $model as map(*)) as map(*) {
(: Attributes:
: Child Elements:
:)
map:merge((
for $attribute in $node/xs:attribute
return xsd2json:minOccurs-attribute($attribute, $model)
))
};
(:~
:
: Used for determining cardinality.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:minOccurs-attribute($node as node(), $model as map(*)) as map(*) {
(: Attributes:
: Child Elements:
:)
let $count :=
if (($node/@minOccurs/fn:number(.) = 1) or ($node[@use = 'required']))
then 1
else 0
return
if ($node/@name)
then map:entry('@' || $node/@name/string(.), $count)
else map:entry('@' || $node/@ref/string(.), $count)
};
(:~
:
: The all element specifies that the child elements can appear in any order.
: Since, in JSON, the order does not matter, call xsd2json:sequence.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
: @see xsd2json:sequence()
:)
declare function xsd2json:all($node as node(), $model as map(*)) as map(*) {
(: Attributes:
: minOccurs
: Child Elements:
:)
xsd2json:sequence($node, $model)
};
(:~
:
: TODO: Document this function.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:extension($node as node(), $model as map(*)) as map(*) {
(: Attributes:
: Child Elements:
:)
if (xsd2json:is-xsd-datatype($node/@base))
then
if ($node/xs:attribute)
then
let $minOccurs := xsd2json:minOccurs-passthru($node, $model)
let $required := for $key in map:keys($minOccurs)
order by $key
return if (map:get($minOccurs, $key) gt 0) then $key else ()
return
map:merge((
map:entry('type', 'object'),
map:entry(
'properties',
map:merge((
map:entry(
'value',
xsd2json:dataType($node/@base, $model)
),
xsd2json:passthru($node, $model)
))
),
map:entry('additionalProperties', fn:false()),
map:entry('required', array { for $item in ('value', $required) order by $item return $item } )
))
else
map:merge((
xsd2json:dataType($node/@base, $model),
xsd2json:passthru($node, $model)
))
else
let $postfix := xsd2json:postfix-from-qname($node/@base)
let $schema := xsd2json:schema-from-qname($node, $node/@base, $model)
let $content :=
if ($schema//xs:complexType[@name = $postfix])
then
let $ct := $schema//xs:complexType[@name = $postfix]
return
if ($ct)
then map:get(xsd2json:complexType($ct, $model), $postfix)
else fn:error(xs:QName('xsd2json:err057'), 'missing complexType', $postfix)
else if ($schema//xs:simpleType[@name = $postfix])
then
let $ct := $schema//xs:simpleType[@name = $postfix]
return
if ($ct)
then xsd2json:simpleType($ct, $model)
else fn:error(xs:QName('xsd2json:err057'), 'missing simpleType', $postfix)
else if ($schema//xs:restriction[@name = $postfix])
then
let $ct := $schema//xs:restriction[@name = $postfix]
return
if ($ct)
then xsd2json:restriction($ct, $model)
else fn:error(xs:QName('xsd2json:err057'), 'missing restriction', $postfix)
else if ($schema//xs:extension[@name = $postfix])
then
let $ct := $schema//xs:extension[@name = $postfix]
return
if ($ct)
then xsd2json:extension($ct, $model)
else fn:error(xs:QName('xsd2json:err057'), 'missing extension', $postfix)
else map { }
return
map:merge((
for $key in map:keys($content)
return
map:entry(
$key,
if ($key = 'properties')
then map:merge((
map:get($content, $key),
if ($node/xs:choice)
then
xsd2json:choice($node/xs:choice, $model)
else if ($node/xs:all)
then
for $cnode in $node/xs:all/node()
return xsd2json:passthru($cnode, $model)
else
xsd2json:passthru($node, $model)
))
else map:get($content, $key)
)
))
};
(:~
:
: TODO: Document this function.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:annotation($node as node(), $model as map(*)) as map(*) {
(: Attributes:
: Child Elements:
:)
map:merge(xsd2json:passthru($node, $model))
};
(:~
:
: TODO: Document this function.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)
declare function xsd2json:any($node as node(), $model as map(*)) as map(*) {
(: Attributes:
: Child Elements:
:)
xsd2json:passthru($node, $model)
};
(:~
:
: TODO: Document this function.
:
: @author Loren Cahlander
: @version 1.0
: @param $node the current node being processed
: @param $model a map(*) used for passing additional information between the levels
:)