Re: Query regarding Catalog resolver 'cvc-elt.1: Cannot find the declaration of element'

From:
=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>
Newsgroups:
comp.lang.java.programmer
Date:
Fri, 17 Jul 2009 16:58:02 -0400
Message-ID:
<4a60e5cd$0$48237$14726298@news.sunsite.dk>
Amit Jain wrote:

I don't want to provide xsd name in java code.
/****
builder.setProperty(JAXP_SCHEMA_SOURCE, "C:/note.xsd");
****/

=>For this purpose I configured the Catalog Resolver.
           ******* corecatalog.xml Starts *******
            <catalog
xmlns="urn:oasis:names:tc:entity:xmlns:xml:catalog">
               <system systemId="http://schemas.xmlsoap.org/soap/
envelope/"
               uri="note.xsd"/>
            </catalog>
           ******* corecatalog.xml End *******

I am getting problem while using Catalog resolver. Please have a look
on below mentioned links.
-> http://xml.apache.org/commons/components/resolver/resolver-article.html
-> http://xml.apache.org/commons/components/resolver/


The code can easily be modified to do that.

mport org.jdom.input.SAXBuilder;
import org.jdom.Document;

import com.sun.org.apache.xml.internal.resolver.tools.CatalogResolver;

public class Note2 {
     static final String JAXP_SCHEMA_LANGUAGE =
"http://java.sun.com/xml/jaxp/properties/schemaLanguage";
     static final String W3C_XML_SCHEMA =
"http://www.w3.org/2001/XMLSchema";
     static final String JAXP_SCHEMA_SOURCE =
"http://java.sun.com/xml/jaxp/properties/schemaSource";
     public static void main(String[] args) throws Exception{
         SAXBuilder builder = new SAXBuilder();
         builder.setValidation(true);
         builder.setProperty(JAXP_SCHEMA_LANGUAGE, W3C_XML_SCHEMA);
         //builder.setProperty(JAXP_SCHEMA_SOURCE, "C:/note.xsd");
         System.setProperty("xml.catalog.files", "C:/corecatalog.xml");
         builder.setEntityResolver(new CatalogResolver());
         try{
            Document doc = builder.build("C:/note.xml");
         }catch(Exception e){
             e.printStackTrace();
         }
     }
}

But you need to:

1) fix the XML so it refer to the schema

<?xml version="1.0"?>
<note xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns="http://schemas.xml.org/abc/123/"
       xsi:schemaLocation="http://schemas.xml.org/abc/123/
http://schemas.xml.org/abc/123/">
    <to>Amit</to>
    <from>Jain</from>
    <heading>Reminder</heading>
    <body>Don't forget me this weekend!</body>
</note>

2) fix the catalog so it specify the correct namespace

<catalog xmlns="urn:oasis:names:tc:entity:xmlns:xml:catalog">
     <system systemId="http://schemas.xml.org/abc/123/"
uri="file:///C:/note.xsd"/>
</catalog>

3) fix the schema so the XML is valid for the schema

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
            xmlns="http://schemas.xml.org/abc/123/"
            elementFormDefault="qualified"
            targetNamespace="http://schemas.xml.org/abc/123/">

<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>

Arne

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