[jdom-interest] Unable to validate a JDOM document or element with the Schema class of jdom contrib package.

[Laurent Bihanic]

Hi,

You only have the schema validation API in the classpath (isorelax.jar) but no 
implementation. None is provided with JDOM contrib.

You can use Sun's Multi-Schema XML Validator that can be found at 
https://msv.dev.java.net/

Regards,

Laurent


John Dous a écrit :
> Unable to validate a JDOM document or element with the Schema class of 
> jdom contrib package.
> 
> **I make a customValidation method and i try to Validate a JDOM 
> document. the problem is that
> 
> *e*very time I get an exception "Failed to parse schema 
> "file:/C:/messages.xsd": no validation engine available *for*: 
> http://www.w3.org/2001/XMLSchema."
> 
> I have try to Parse the xsd with following String values but all the 
> times I failed.
> 
> String uriFile = "C:/messages.xsd"
> 
> String uriFile = "file:/C:/messages.xsd"
> 
> Below is the code and the xml,xsd.
> 
> *public* *void* customValidation() *throws* JDOMException, IOException{
> 
>      
> 
>       String xmlFile = "C:/messages.xml";
> 
>       SAXBuilder builder = *new* SAXBuilder();
> 
>       Document doc = builder.build(*new* FileInputStream(xmlFile));
> 
>              
> 
>       String schemaFile = "C:/messages.xsd";
> 
>       File file = *new* File(schemaFile);
> 
>            
> 
>       String uriFile = file.toURL().toString();
> 
>       Schema schema = Schema./parse/( uriFile, Schema./W3C_XML_SCHEMA/);
> 
>            
> 
>       List errors = schema.validate(doc);
> 
>             *if* (errors != *null*) {
> 
>           // Validation errors
> 
>           *for* (Iterator i=errors.iterator(); i.hasNext(); ) {
> 
>                ValidationError e = (ValidationError)(i.next());
> 
>                System./out/.println(e);
> 
>             }
> 
>             }
> 
>           // Else: No error, document is valid.
> 
>       }
> 
>  
> 
> messages.xml
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <messages xmlns="http://www.w3schools.com" 
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
> xsi:schemaLocation="http://www.w3schools.com messages.xsd">
> 
>   <message id="first">
>     <english>first msg</english>
>     <greek>first msg.</greek>
>   </message>
>  
>   <message id="second">
>     <english>second msg</english>
>     <greek>second msg.</greek>
>   </message>
>  
> </messages>
> 
> 
> messages.xsd:
> 
> <?xml version="1.0"?>
> 
> <xs:schema
> xmlns:xs="http://www.w3.org/2001/XMLSchema"
> xmlns="http://www.w3schools.com"
> targetNamespace="http://www.w3schools.com"
> elementFormDefault="qualified">
> 
> <xs:element name="messages" >
>   <xs:complexType>
>     <xs:sequence>
>         <xs:element name="message" maxOccurs="unbounded">
>             <xs:complexType>
>                 <xs:sequence>
>                     <xs:element name="english" type="xs:string" 
> minOccurs="0" />
>                     <xs:element name="greek" type="xs:string" 
> minOccurs="0" />
>                 </xs:sequence>
>                 <xs:attribute name="id" type="xs:string" />
>             </xs:complexType>
>         </xs:element>
>     </xs:sequence>
>   </xs:complexType>
> </xs:element>
> </xs:schema>
> 
> Thanks in advance.
> 
> John Dousaitis.
> 
> 
> 
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