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From "Mike Cargal (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (GROOVY-7874) When serializing a document with xmlUtil, namespaces that are actually necessary, are being dropped as "unused"
Date Sat, 25 Jun 2016 20:42:37 GMT

     [ https://issues.apache.org/jira/browse/GROOVY-7874?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mike Cargal updated GROOVY-7874:
--------------------------------
    Description: 
The following code segment demonstrates parsing a schema and then serializing with xmlUtil.
 xmlUtil, in it's attempt to discard necessary namespaces, is discarding namespaces that are
actually needed.

Save the original schema and the referenced schema in eclipse, and there will be no errors.
 Save the output schema (as MyRevSchema.xsd for example) and you'll have errors as a result
of the dropped namespaces.

{code}
import groovy.xml.*

scSrc = '''<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    attributeFormDefault="unqualified" elementFormDefault="qualified"
    targetNamespace="urn:cargal.net/myNS" xmlns="urn:cargal.net/myNS"
    xmlns:myns="urn:cargal.net/myNS">
    <xsd:include schemaLocation="MyRefSchema.xsd" />
    <xsd:complexType name="myCT2">
        <xsd:complexContent>
            <xsd:extension base="myns:myCT">
                <xsd:sequence>
                    <xsd:element name="element1" />
                </xsd:sequence>
            </xsd:extension>
        </xsd:complexContent>
    </xsd:complexType>
    <xsd:element name="test" type="myns:myCT" />
    <xsd:element name="test2" substitutionGroup="subG" type="myCT2" />
</xsd:schema>
'''

schema = new XmlSlurper().parseText(scSrc)
println schema.lookupNamespace('')
println schema.lookupNamespace('myns')
println new XmlUtil().serialize(schema)
{code}

results:
{noformat}
urn:cargal.net/myNS
urn:cargal.net/myNS
<?xml version="1.0" encoding="UTF-8"?><xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="urn:cargal.net/myNS">
  <xsd:include schemaLocation="MyRefSchema.xsd"/>
  <xsd:complexType name="myCT2">
    <xsd:complexContent>
      <xsd:extension base="myns:myCT">
        <xsd:sequence>
          <xsd:element name="element1"/>
        </xsd:sequence>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>
  <xsd:element name="test" type="myns:myCT"/>
  <xsd:element name="test2" substitutionGroup="subG" type="myCT2"/>
</xsd:schema>
{noformat}

For reference:  MyRefSchema.xsd
{noformat}
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
	attributeFormDefault="unqualified" elementFormDefault="qualified"
	targetNamespace="urn:cargal.net/myNS" xmlns="urn:cargal.net/myNS"
	xmlns:myns="urn:cargal.net/myNS">
	<xsd:complexType name="myCT">
		<xsd:sequence>
			<xsd:element name="element1" />
		</xsd:sequence>
	</xsd:complexType>
	<xsd:element name="subG" type="myCT" />
</xsd:schema>
{noformat}

  was:
The following code segment demonstrates parsing a schema and then serializing with xmlUtil.
 xmlUtil, in it's attempt to discard necessary namespaces, is discarding namespaces that are
actually needed.

Save the original schema and the referenced schema in eclipse, and there will be no errors.
 Save the output schema (as MyRevSchema.xsd for example) and you'll have errors as a result
of the dropped namespaces.

{code}
import groovy.xml.*

scSrc = '''<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    attributeFormDefault="unqualified" elementFormDefault="qualified"
    targetNamespace="urn:cargal.net/myNS" xmlns="urn:cargal.net/myNS"
    xmlns:myns="urn:cargal.net/myNS">
    <xsd:include schemaLocation="MyRefSchema.xsd" />
    <xsd:complexType name="myCT2">
        <xsd:complexContent>
            <xsd:extension base="myns:myCT">
                <xsd:sequence>
                    <xsd:element name="element1" />
                </xsd:sequence>
            </xsd:extension>
        </xsd:complexContent>
    </xsd:complexType>
    <xsd:element name="test" type="myns:myCT" />
    <xsd:element name="test2" substitutionGroup="subG" type="myCT2" />
</xsd:schema>
'''

schema = new XmlSlurper().parseText(scSrc)
println schema.lookupNamespace('')
println schema.lookupNamespace('myns')
println new XmlUtil().serialize(schema)
{code}

results:
{noformat}
schema.@attributeFormDefault=unqualified
schema.@xmlns=
<?xml version="1.0" encoding="UTF-8"?><xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="urn:cargal.net/myNS">
  <xsd:include schemaLocation="MyRefSchema.xsd"/>
  <xsd:complexType name="myCT2">
    <xsd:complexContent>
      <xsd:extension base="myns:myCT">
        <xsd:sequence>
          <xsd:element name="element1"/>
        </xsd:sequence>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>
  <xsd:element name="test" type="myns:myCT"/>
  <xsd:element name="test2" substitutionGroup="subG" type="myCT2"/>
</xsd:schema>
{noformat}

For reference:  MyRefSchema.xsd
{noformat}
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
	attributeFormDefault="unqualified" elementFormDefault="qualified"
	targetNamespace="urn:cargal.net/myNS" xmlns="urn:cargal.net/myNS"
	xmlns:myns="urn:cargal.net/myNS">
	<xsd:complexType name="myCT">
		<xsd:sequence>
			<xsd:element name="element1" />
		</xsd:sequence>
	</xsd:complexType>
	<xsd:element name="subG" type="myCT" />
</xsd:schema>
{noformat}


> When serializing a document with xmlUtil, namespaces that are actually necessary, are
being dropped as "unused"
> ---------------------------------------------------------------------------------------------------------------
>
>                 Key: GROOVY-7874
>                 URL: https://issues.apache.org/jira/browse/GROOVY-7874
>             Project: Groovy
>          Issue Type: Bug
>          Components: XML Processing
>    Affects Versions: 2.4.3, 2.4.6, 2.4.7
>         Environment: MAC OS X, and Windows
>            Reporter: Mike Cargal
>            Priority: Minor
>
> The following code segment demonstrates parsing a schema and then serializing with xmlUtil.
 xmlUtil, in it's attempt to discard necessary namespaces, is discarding namespaces that are
actually needed.
> Save the original schema and the referenced schema in eclipse, and there will be no errors.
 Save the output schema (as MyRevSchema.xsd for example) and you'll have errors as a result
of the dropped namespaces.
> {code}
> import groovy.xml.*
> scSrc = '''<?xml version="1.0" encoding="UTF-8"?>
> <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
>     attributeFormDefault="unqualified" elementFormDefault="qualified"
>     targetNamespace="urn:cargal.net/myNS" xmlns="urn:cargal.net/myNS"
>     xmlns:myns="urn:cargal.net/myNS">
>     <xsd:include schemaLocation="MyRefSchema.xsd" />
>     <xsd:complexType name="myCT2">
>         <xsd:complexContent>
>             <xsd:extension base="myns:myCT">
>                 <xsd:sequence>
>                     <xsd:element name="element1" />
>                 </xsd:sequence>
>             </xsd:extension>
>         </xsd:complexContent>
>     </xsd:complexType>
>     <xsd:element name="test" type="myns:myCT" />
>     <xsd:element name="test2" substitutionGroup="subG" type="myCT2" />
> </xsd:schema>
> '''
> schema = new XmlSlurper().parseText(scSrc)
> println schema.lookupNamespace('')
> println schema.lookupNamespace('myns')
> println new XmlUtil().serialize(schema)
> {code}
> results:
> {noformat}
> urn:cargal.net/myNS
> urn:cargal.net/myNS
> <?xml version="1.0" encoding="UTF-8"?><xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="urn:cargal.net/myNS">
>   <xsd:include schemaLocation="MyRefSchema.xsd"/>
>   <xsd:complexType name="myCT2">
>     <xsd:complexContent>
>       <xsd:extension base="myns:myCT">
>         <xsd:sequence>
>           <xsd:element name="element1"/>
>         </xsd:sequence>
>       </xsd:extension>
>     </xsd:complexContent>
>   </xsd:complexType>
>   <xsd:element name="test" type="myns:myCT"/>
>   <xsd:element name="test2" substitutionGroup="subG" type="myCT2"/>
> </xsd:schema>
> {noformat}
> For reference:  MyRefSchema.xsd
> {noformat}
> <?xml version="1.0" encoding="UTF-8"?>
> <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
> 	attributeFormDefault="unqualified" elementFormDefault="qualified"
> 	targetNamespace="urn:cargal.net/myNS" xmlns="urn:cargal.net/myNS"
> 	xmlns:myns="urn:cargal.net/myNS">
> 	<xsd:complexType name="myCT">
> 		<xsd:sequence>
> 			<xsd:element name="element1" />
> 		</xsd:sequence>
> 	</xsd:complexType>
> 	<xsd:element name="subG" type="myCT" />
> </xsd:schema>
> {noformat}



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