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org.eclipse.xsd.XSDSchema [message #895762]

Sun, 15 July 2012 20:10

Slawek L

Messages: 21
Registered: May 2012

Junior Member

I have a xsd file:

<?xml version="1.0"?>
<xs:schema xmlns:xs="htp://www.w3.org/2001/XMLSchema">

<xs:element name="note">
<xs:complexType>
<xs:sequence>
<xs:element name="to" type="xs:string"/>
<xs:element name="from" type="xs:string"/>
<xs:element name="heading" type="xs:string"/>
<xs:element name="body" type="xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:element>

</xs:schema>

and parse it by org.eclipse.xsd.util.XSDParser to org.eclipse.xsd.XSDSchema and question is how find element to,from,heading and body inside XSDSchema? The only element that i found is note.
any advice which can help?

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Re: org.eclipse.xsd.XSDSchema [message #895796 is a reply to message #895762]

Mon, 16 July 2012 05:26

Ed Merks

Messages: 29548
Registered: July 2009

Senior Member

XSDElementDeclaration has getAnonymousTypeDefinition for this particular
case (a contained anonymous type), or, more generally,
getTypeDefinitition for the type of the element, regardless of whether
it's contained or referenced by name. Looking at how
XSDProtypicalSchema builds instances is likely to help you understand
how to traverse them. A generic way to walk everything is
Resource.getAllContents().

On 15/07/2012 10:11 PM, Slawek L wrote:
> I have a xsd file:
>
> <?xml version="1.0"?>
> <xs:schema xmlns:xs="htp://www.w3.org/2001/XMLSchema">
>
> <xs:element name="note">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="to" type="xs:string"/>
> <xs:element name="from" type="xs:string"/>
> <xs:element name="heading" type="xs:string"/>
> <xs:element name="body" type="xs:string"/>
> </xs:sequence>
> </xs:complexType>
> </xs:element>
>
> </xs:schema>
>
> and parse it by org.eclipse.xsd.util.XSDParser to
> org.eclipse.xsd.XSDSchema and question is how find element
> to,from,heading and body inside XSDSchema? The only element that i
> found is note.
> any advice which can help?
>

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Re: org.eclipse.xsd.XSDSchema [message #896479 is a reply to message #895796]

Wed, 18 July 2012 13:50

Slawek L

Messages: 21
Registered: May 2012

Junior Member

Hi, I have a simple code from XSDPrototypicalSchema and its clear :

XSDSchema xsdSchema=XSDSchema.class.newInstance();
    XSDComplexTypeDefinition usAddress = xsdFactory.createXSDComplexTypeDefinition();
    usAddress.setName("USAddress");
    
    XSDModelGroup usAddressSequence = xsdFactory.createXSDModelGroup();
    usAddressSequence.setCompositor(XSDCompositor.SEQUENCE_LITERAL);
    XSDParticle usAddressParticle = xsdFactory.createXSDParticle();
    usAddressParticle.setContent(usAddressSequence);
    
    XSDElementDeclaration street = xsdFactory.createXSDElementDeclaration();
    street.setName("street");
    street.setTypeDefinition(xsdSchema.getSchemaForSchema().resolveSimpleTypeDefinition("string"));
    XSDParticle streeParticle = xsdFactory.createXSDParticle();
    streeParticle.setContent(street);
    usAddressSequence.getContents().add(streeParticle);

    XSDElementDeclaration city = xsdFactory.createXSDElementDeclaration();
    city.setName("city");
    city.setTypeDefinition(xsdSchema.getSchemaForSchema().resolveSimpleTypeDefinition("string"));
    XSDParticle cityParticle = xsdFactory.createXSDParticle();
    cityParticle.setContent(city);
    usAddressSequence.getContents().add(cityParticle);

    usAddress.setContent(usAddressParticle);

    XSDAttributeDeclaration country = xsdFactory.createXSDAttributeDeclaration();
    country.setName("country");
    country.setTypeDefinition(xsdSchema.getSchemaForSchema().resolveSimpleTypeDefinition("NMTOKEN"));
    XSDAttributeUse countryAttributeUse = xsdFactory.createXSDAttributeUse();
    countryAttributeUse.setContent(country);
    countryAttributeUse.setConstraint(XSDConstraint.FIXED_LITERAL);
    countryAttributeUse.setLexicalValue("US");
    usAddress.getAttributeContents().add(countryAttributeUse);
    
    xsdSchema.getContents().add(usAddress);

input will be:

<xsd:complexType name="USAddress">
             <xsd:sequence>
                 <xsd:element name="name" type="xsd:string"/>
                 <xsd:element name="street" type="xsd:string"/>
                 <xsd:element name="city" type="xsd:string"/>
                 <xsd:element name="state" type="xsd:string"/>
                 <xsd:element name="zip" type="xsd:string"/>
             </xsd:sequence>
             <xsd:attribute fixed="US" name="country" type="xsd:NMTOKEN"/>
         </xsd:complexType>

but how from xsdSchema object get this simple structur? Almost all objects has inside Contents (EList) where can be everything(XSDComplexTypeDefinition, XSDParticial, XSDSequence ...). Could you provide more details about "generic way to walk everything", XSDSchema has a method eResource() but it gives null.

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Re: org.eclipse.xsd.XSDSchema [message #896491 is a reply to message #896479]

Wed, 18 July 2012 14:03

Ed Merks

Messages: 29548
Registered: July 2009

Senior Member

Comments below.

On 18/07/2012 3:50 PM, Slawek L wrote:
> Hi, I have a simple code from XSDPrototypicalSchema and its clear :
>
> XSDSchema xsdSchema=XSDSchema.class.newInstance();
> XSDComplexTypeDefinition usAddress =
> xsdFactory.createXSDComplexTypeDefinition();
> usAddress.setName("USAddress");
> XSDModelGroup usAddressSequence = xsdFactory.createXSDModelGroup();
> usAddressSequence.setCompositor(XSDCompositor.SEQUENCE_LITERAL);
> XSDParticle usAddressParticle = xsdFactory.createXSDParticle();
> usAddressParticle.setContent(usAddressSequence);
> XSDElementDeclaration street =
> xsdFactory.createXSDElementDeclaration();
> street.setName("street");
> street.setTypeDefinition(xsdSchema.getSchemaForSchema().resolveSimpleTypeDefinition("string"));
> XSDParticle streeParticle = xsdFactory.createXSDParticle();
> streeParticle.setContent(street);
> usAddressSequence.getContents().add(streeParticle);
>
> XSDElementDeclaration city = xsdFactory.createXSDElementDeclaration();
> city.setName("city");
> city.setTypeDefinition(xsdSchema.getSchemaForSchema().resolveSimpleTypeDefinition("string"));
> XSDParticle cityParticle = xsdFactory.createXSDParticle();
> cityParticle.setContent(city);
> usAddressSequence.getContents().add(cityParticle);
>
> usAddress.setContent(usAddressParticle);
>
> XSDAttributeDeclaration country =
> xsdFactory.createXSDAttributeDeclaration();
> country.setName("country");
> country.setTypeDefinition(xsdSchema.getSchemaForSchema().resolveSimpleTypeDefinition("NMTOKEN"));
> XSDAttributeUse countryAttributeUse =
> xsdFactory.createXSDAttributeUse();
> countryAttributeUse.setContent(country);
> countryAttributeUse.setConstraint(XSDConstraint.FIXED_LITERAL);
> countryAttributeUse.setLexicalValue("US");
> usAddress.getAttributeContents().add(countryAttributeUse);
> xsdSchema.getContents().add(usAddress);
>
> input will be:
>
> <xsd:complexType name="USAddress">
> <xsd:sequence>
> <xsd:element name="name" type="xsd:string"/>
> <xsd:element name="street" type="xsd:string"/>
> <xsd:element name="city" type="xsd:string"/>
> <xsd:element name="state" type="xsd:string"/>
> <xsd:element name="zip" type="xsd:string"/>
> </xsd:sequence>
> <xsd:attribute fixed="US" name="country" type="xsd:NMTOKEN"/>
> </xsd:complexType>
>
> but how from xsdSchema object get this simple structur?
xsdSchema.getContents() contains it so you can iterate over that list.
> Almost all objects has inside Contents (EList) where can be
> everything(XSDComplexTypeDefinition, XSDParticial, XSDSequence ...).
Yes.
> Could you provide more details about "generic way to walk everything",
> XSDSchema has a method eResource() but it gives null.
EObject.eContents() generically returns all the contained EObjects.
EObject.eAllContents() is an iterator that (like
Resource.getAllContents(), will walk the entire containment tree.

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Re: org.eclipse.xsd.XSDSchema [message #897954 is a reply to message #896491]

Wed, 25 July 2012 13:51

Slawek L

Messages: 21
Registered: May 2012

Junior Member

How do I from XSDSchema receive org.eclipse.emf.common.util.URI? (org.eclipse.xsd.util.XSDPrototypicalSchema method printSchema(String xsdSchemaURI))

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Re: org.eclipse.xsd.XSDSchema [message #898007 is a reply to message #897954]

Wed, 25 July 2012 15:22

Ed Merks

Messages: 29548
Registered: July 2009

Senior Member

<html>
<head>
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
You can use things like an <a class="moz-txt-link-freetext" href="http://">http://</a>... URI pointing to a schema on
the web, or a <a class="moz-txt-link-freetext" href="file://">file://</a> URI pointing to something on your local file
system. URI.createFileURI(URI.createFileURI(<java.util.File>.getAbsolutePath())
is a good way to produce a URI for the file system. If you're
wanting something in the workspace, be sure to read the EMF FAQ: 
<body>
<li class="toclevel-2"><a
href="http://wiki.eclipse.org/index.php/EMF-FAQ#How_do_I_map_between_an_EMF_Resource_and_an_Eclipse_IFile.3F">2.44 How do
I map between an EMF Resource and an Eclipse IFile?</a></li>
</body>
 
<div class="moz-cite-prefix">On 25/07/2012 3:51 PM, Slawek L wrote: 
</div>
<blockquote cite="mid:juotkm$sua$1@xxxxxxxxe.org" type="cite">How
do I from XSDSchema receive org.eclipse.emf.common.util.URI?
(org.eclipse.xsd.util.XSDPrototypicalSchema method
printSchema(String xsdSchemaURI))
 
</blockquote>
 
</body>
</html>

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Re: org.eclipse.xsd.XSDSchema [message #898442 is a reply to message #898007]

Thu, 26 July 2012 11:50

Slawek L

Messages: 21
Registered: May 2012

Junior Member

Thanks Ed for help, now it's more understandable, but still I have some questions...
for example:

<xs:complexType name="company">
    <xs:sequence minOccurs="1" maxOccurs="1">
      <xs:element  name="name" type="xs:string"/>
      <xs:element  name="street" type="xs:string"/>
      <xs:element  name="postCode" type="xs:string"/>
      <xs:element  name="city" type="xs:string"/>
    </xs:sequence>
</xs:complexType>

It is

org.eclipse.xsd.XSDComplexTypeDefinition

object, and how do I check how many tags are inside?
best regards

[Updated on: Thu, 26 July 2012 11:51]

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Re: org.eclipse.xsd.XSDSchema [message #898451 is a reply to message #898442]

Thu, 26 July 2012 12:02

Ed Merks

Messages: 29548
Registered: July 2009

Senior Member

What do you mean by "tags"?

On 26/07/2012 1:50 PM, Slawek L wrote:
> Thanks Ed for help, now it's more understandable, but still I have
> some questions...
> for example:
>
> <xs:complexType name="company">
> <xs:sequence minOccurs="1" maxOccurs="1">
> <xs:element name="name" type="xs:string"/>
> <xs:element name="street" type="xs:string"/>
> <xs:element name="postCode" type="xs:string"/>
> <xs:element name="city" type="xs:string"/>
> </xs:sequence>
> </xs:complexType>
>
> It is org.eclipse.xsd.XSDComplexTypeDefinition object, and how do I
> check how many tags are inside?
> best regards

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Re: org.eclipse.xsd.XSDSchema [message #898454 is a reply to message #898451]

Thu, 26 July 2012 12:11

Slawek L

Messages: 21
Registered: May 2012

Junior Member

Sorry, I wasn't precise, in schema code we see that complexType "company" contains 4 elements: name, street, postCode, city. How do I check it in java and how do I check that city is a last element in company complexType.

[Updated on: Thu, 26 July 2012 12:13]

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Re: org.eclipse.xsd.XSDSchema [message #898462 is a reply to message #898454]

Thu, 26 July 2012 12:20

Ed Merks

Messages: 29548
Registered: July 2009

Senior Member

Probably you want to consider the logical content type because it will
take inheritance into account:

Open Declaration
<eclipse-open:%E2%98%82=org.eclipse.xsd/src%3Corg.eclipse.xsd%7BXSDComplexTypeDefinition.java%E2%98%83XSDComplexTypeDefinition%7EgetContentType>XSDComplexTypeContent
<eclipse-javadoc:%E2%98%82=org.eclipse.xsd/src%3Corg.eclipse.xsd%7BXSDComplexTypeDefinition.java%E2%98%83XSDComplexTypeDefinition%7EgetContentType%E2%98%82XSDComplexTypeContent>
org.eclipse.xsd.XSDComplexTypeDefinition
<eclipse-javadoc:%E2%98%82=org.eclipse.xsd/src%3Corg.eclipse.xsd%7BXSDComplexTypeDefinition.java%E2%98%83XSDComplexTypeDefinition>.getContentType()

Returns the value of the '/*Content Type*/' reference.

This represents the value of the content type
<http://www.w3.org/TR/xmlschema-1/#content_type> infoset property.
It is computed from the |content
<eclipse-javadoc:%E2%98%82=org.eclipse.xsd/src%3Corg.eclipse.xsd%7BXSDComplexTypeDefinition.java%E2%98%83XSDComplexTypeDefinition%7EgetContentType%E2%98%82%E2%98%82getContent%E2%98%82>|
and should typically not be modified directly. It will be |null|, an
|XSDSimpleTypeDefinition
<eclipse-javadoc:%E2%98%82=org.eclipse.xsd/src%3Corg.eclipse.xsd%7BXSDComplexTypeDefinition.java%E2%98%83XSDComplexTypeDefinition%7EgetContentType%E2%98%82XSDSimpleTypeDefinition>|,
or an |XSDParticle
<eclipse-javadoc:%E2%98%82=org.eclipse.xsd/src%3Corg.eclipse.xsd%7BXSDComplexTypeDefinition.java%E2%98%83XSDComplexTypeDefinition%7EgetContentType%E2%98%82XSDParticle>|.

On 26/07/2012 2:11 PM, Slawek L wrote:
> Sorry, I wasn't precise, in schema code we see that complexType
> "company" contains 4 elements: name, street, postCode, city. How do I
> check it in java?

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Re: org.eclipse.xsd.XSDSchema [message #899577 is a reply to message #898462]

Wed, 01 August 2012 13:49

Slawek L

Messages: 21
Registered: May 2012

Junior Member

xsd file:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<xsd:schema xmlns:xsd="htp://www.w3.org/2001/XMLSchema">
	<xsd:annotation>
		<xsd:documentation>Description .</xsd:documentation>
	</xsd:annotation>
	<xsd:element name="application">
		<xsd:complexType>
			<xsd:sequence>
				<xsd:element name="applicant">
					<xsd:complexType>
						<xsd:sequence>
							<xsd:element name="father_name">
								<xsd:simpleType>
									<xsd:restriction base="xsd:string">
										<xsd:maxLength value="50"/>
									</xsd:restriction>
								</xsd:simpleType>
							</xsd:element>
							<xsd:element name="birthday">
								<xsd:simpleType>
									<xsd:restriction base="xsd:date"/>
								</xsd:simpleType>
							</xsd:element>
						</xsd:sequence>
					</xsd:complexType>
				</xsd:element>
				<xsd:element name="date">
					<xsd:simpleType>
						<xsd:restriction base="xsd:date"/>
					</xsd:simpleType>
				</xsd:element>
			</xsd:sequence>
		</xsd:complexType>
	</xsd:element>
</xsd:schema>

Body of method

String fileName = "c:\\ParserXSDExample\\b\\4.xsd";
		XSDSchema xsdSchema = null;
		XSDParser parser = null;
		
		try {
			parser = XSDParser.class.newInstance();
			parser.parse(fileName);
			xsdSchema = parser.getSchema();
		} catch (InstantiationException e) {
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			e.printStackTrace();
		}

		int counter = 1;
		Document docu = xsdSchema.getDocument();
		TreeIterator<EObject> iterator = xsdSchema.eAllContents();
		while (iterator.hasNext()) {
			EObject object = (EObject) iterator.next();
			System.out.println(counter + "). element " + object.getClass());

			if (object instanceof XSDElementDeclaration) {
				XSDElementDeclaration xsdED=(XSDElementDeclaration) object;
				System.out.println(xsdED.getName());
			}
			counter++;
		}

and it produces:

application
applicant
father_name
birthday
date

And it is OK, but expected output should looks like:

application
  applicant
    father_name
    birthda
  applicant-Close
  date
application-Close

My problem is that I don't know how check that:
-element applicant is inside other element(application)(applicant has a parent)
-no more elements are inside applicant after birthda(birthday is last children)

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Re: org.eclipse.xsd.XSDSchema [message #899677 is a reply to message #899577]

Wed, 01 August 2012 18:41

Ed Merks

Messages: 29548
Registered: July 2009

Senior Member

Comments below.

On 01/08/2012 3:50 PM, Slawek L wrote:
> xsd file:
>
> <?xml version="1.0" encoding="UTF-8" standalone="no"?>
> <xsd:schema xmlns:xsd="htp://www.w3.org/2001/XMLSchema">
> <xsd:annotation>
> <xsd:documentation>Description .</xsd:documentation>
> </xsd:annotation>
> <xsd:element name="application">
> <xsd:complexType>
> <xsd:sequence>
> <xsd:element name="applicant">
> <xsd:complexType>
> <xsd:sequence>
> <xsd:element name="father_name">
> <xsd:simpleType>
> <xsd:restriction base="xsd:string">
> <xsd:maxLength value="50"/>
> </xsd:restriction>
> </xsd:simpleType>
> </xsd:element>
> <xsd:element name="birthday">
> <xsd:simpleType>
> <xsd:restriction base="xsd:date"/>
> </xsd:simpleType>
> </xsd:element>
> </xsd:sequence>
> </xsd:complexType>
> </xsd:element>
> <xsd:element name="date">
> <xsd:simpleType>
> <xsd:restriction base="xsd:date"/>
> </xsd:simpleType>
> </xsd:element>
> </xsd:sequence>
> </xsd:complexType>
> </xsd:element>
> </xsd:schema>
>
>
> Body of method
> String fileName = "c:\\ParserXSDExample\\b\\4.xsd";
> XSDSchema xsdSchema = null;
> XSDParser parser = null;
>
> try {
> parser = XSDParser.class.newInstance();
> parser.parse(fileName);
There's no example that shows to do this. The examples show how to use
a resource set. Why are you doing this? It doesn't build a schema so I
don't see how it produces output like what you show.
> xsdSchema = parser.getSchema();
> } catch (InstantiationException e) {
> e.printStackTrace();
> } catch (IllegalAccessException e) {
> e.printStackTrace();
> }
>
> int counter = 1;
> Document docu = xsdSchema.getDocument();
> TreeIterator<EObject> iterator = xsdSchema.eAllContents();
> while (iterator.hasNext()) {
> EObject object = (EObject) iterator.next();
> System.out.println(counter + "). element " +
> object.getClass());
>
> if (object instanceof XSDElementDeclaration) {
> XSDElementDeclaration xsdED=(XSDElementDeclaration)
> object;
> System.out.println(xsdED.getName());
> }
> counter++;
> }
>
> and it produces:
>
> application
> applicant
> father_name
> birthday
> date
>
> And it is OK, but expected output should looks like:
>
> application
> applicant
> father_name
> birthda
> applicant-Close
> date
> application-Close
>
> My problem is that I don't know how check that:
> -element applicant is inside other element(application)(applicant has
> a parent)
> -no more elements are inside applicant after birthda(birthday is last
> children)
>
>

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