RE: Re: Validating mandatory parameters of XML using JAXB 2.0

From: <praveen.mar_at_wipro.com>
Date: Thu, 19 Apr 2007 18:45:52 +0530

Thanks Chris.

Praveen P
* ESN 343-3315
* E-mail praveen.mar_at_wipro.com

-----Original Message-----
From: breadfan_at_gmx.de [mailto:breadfan_at_gmx.de]
Sent: Thursday, April 19, 2007 5:14 AM
To: users_at_jax-ws.dev.java.net
Subject: Re: Validating mandatory parameters of XML using JAXB 2.0

Hello,

we use the following code to check the parameters of a jaxws
call/response against a schema, it's working quite fine, but is
definitely slow.

        try
        {
            JAXBContext jaxbContext = JAXBContext.newInstance(packages);

            Marshaller marshaller = jaxbContext.createMarshaller();
            SchemaFactory schemaFactory = SchemaFactory
                .newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);

            URL schemaURL =
Thread.currentThread().getContextClassLoader().getResource(
                schemaLocation);

            if (schemaURL == null)
            {
                throw new RuntimeException("Schema for validation cannot
be found in classpath: "
                    + schemaLocation);
            }

            Schema schema = schemaFactory.newSchema(schemaURL);
            marshaller.setSchema(schema);

            String className =
ClassUtils.getShortName(object.getClass());
            String elementName = className.substring(0, 1).toLowerCase()
+ className.substring(1);

            JAXBElement jaxbElement = new JAXBElement(new
QName(schemaNamespace, elementName),
                Object.class, object);

            if (LOGGER.isDebugEnabled())
            {
                ByteArrayOutputStream os = new ByteArrayOutputStream();
                marshaller.marshal(jaxbElement, os);
                LOGGER.debug("Marshalled Soap Transfer Object: " +
os.toString());
            }
            else
            {
                OutputStream os = new NullOutputStream();
                marshaller.marshal(jaxbElement, os);
            }
        }
        catch (JAXBException e)
        {
            String errorMessage = buildValidationErrorMessage(pathInfo,
object, e);
            LOGGER.debug(errorMessage);
            throw new RuntimeException(errorMessage);
        }
        catch (SAXException e)
        {
            String errorMessage = buildValidationErrorMessage(pathInfo,
object, e);
            LOGGER.debug(errorMessage);
            throw new RuntimeException(errorMessage);
        }

Best regards,
Chris

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