xml validation

[anish249]

hi all,

i developed xml business component,where iam doing valdation based on schema.it is working fine when i pass xml and the schema used in xml.

if xml doc doesnt follow schema i am throwing exception
or else returning true.

but my problem is when i pass xml and other schema that is not defined in xml.At that time it is still validating
and throwing exception.

instead of getting exception schema not found.

please any one give inptust to resolve this issue.

here is my code

	public boolean performValidation(String pFileXmlOne, String... pSchemaNames)
			throws CAFException {


 		SchemaFactory factory = SchemaFactory
				.newInstance("http://www.w3.org/2001/XMLSchema");

		Source[] lStreamSources = null;

		Schema schema = null;

		Validator lValidator = null;

		Source lSource = new StreamSource(pFileXmlOne);

		// split schema string by delimiter

		lStreamSources = getStreamSource(pSchemaNames);
		logger.log(Level.INFO, myClassName + "total no of schemas"
				+ lStreamSources.length);
		try {
			schema = factory.newSchema(lStreamSources);
		} catch (SAXException e) {
			// TODO Auto-generated catch block
			logger.log(Level.INFO, myClassName
					+ "sax exception in creating schema" + e.getMessage());
			throw new SAXException(e.getMessage());
		}
		logger.log(Level.INFO, myClassName
				+ " before creating validator object");
		lValidator = schema.newValidator();
		logger
				.log(Level.INFO, myClassName
						+ " after creating validator object");
		try {
			logger.log(Level.INFO, myClassName
					+ " before performing validation");
			lValidator.validate(lSource);
			lValidator.setErrorHandler(new SimpleErrorHandler());
			 
			logger
					.log(Level.INFO, myClassName
							+ " after performing validation");
		} 
		catch (SAXException e) {
			// TODO Auto-generated catch block
			logger.log(Level.INFO, myClassName + "  sax exception"
					+ e.getMessage());
			throw new SAXException(e.getMessage());
		} catch (IOException e) {
			logger.log(Level.INFO, myClassName + " IOException"
					+ e.getMessage());
			throw new CAFException(e.getMessage());
		}
		catch(Exception e)
		{
			throw new SAXException("xml do not contain xsd,dtd|| xml is not following dtd or xsd");
		}

		return true;

	}

please help me to resolve this issue

[jkmyoung]

Sorry? Is your problem:
1. Your xml contains elements from another schema
2. Your schema is not passed in at all?

Suggestions:
Catch this particular exception and pass appropriate message or throw appropriate error.
Perhaps have an any tag in your schema to allow elements from different namespaces.

[anish249]

xml validation

hi

when i pass xml and other schema it is still validating.iam using jdk1.5 feature to validate and iam throwing exception.

but problem is iam not getting exception as schema not found exceptionon.whi ch is my correct msg.

please can any one help to resolve this issue.

thanks in advance.

[jkmyoung]

What exception are you getting? Which catch block is the exception falling in?

[anish249]

xml validation

for input of xml,schema it is alway going to

catch (SAXException e) {
throw new SAXException(e. getMessage());
}

for input of xml,dtd
catch (IOException e) {
throw new IOException(e.g etMessage());
}

thanks in advance.

[jkmyoung]

You need to have some way of filtering those messages, probably using the Message of the exception. Check if the string contains a specified error, and throw a different exception if this is the case.