- public boolean validateXmlFile() throws Exception
{
XmlValidator xmlValidator = new XmlValidator();
String schemaUrl = "file:\\\\C:\\Program Files\\Apache
Group\\jakarta-tomcat-4.1.27\\webapps\\cs554project\\include\\credit-card-payment.xsd";
String xmlFile = "file:\\\\C:\\Program Files\\Apache
Group\\jakarta-tomcat-4.1.27\\webapps\\cs554project\\WEB-INF\\paymentfile.xml";
return xmlValidator.validateSchema(schemaUrl,xmlFile); //specify the
Schema file and file to be validated
- }
- package edu.umkc.cs554.project.common.utilclasses;
- // I have used Oracle's XDK Parser
import oracle.xml.schemavalidator.XSDValidator;
import oracle.xml.parser.schema.XSDException;
import oracle.xml.parser.schema.XMLSchema;
import oracle.xml.parser.schema.XSDBuilder;
import oracle.xml.parser.v2.XMLError;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.helpers.DefaultHandler;
import java.net.URL;
public class XmlValidator
{
public boolean validateSchema(String SchemaUrl, String XmlDocumentUrl)
{
boolean flag = false;
try
{
XSDValidator xsdValidator=new XSDValidator(); // Oracle's implementation
class in xschema.jar
XSDBuilder builder = new XSDBuilder(); // Oracle's implementation class in
xschema.jar
System.out.println("SchemaUrl : " + SchemaUrl);
System.out.println("XmlDocumentUrl" + XmlDocumentUrl);
URL url = new URL(SchemaUrl);
System.out.println("XML schema validation started");
XMLSchema schemadoc = (XMLSchema)builder.build(url); // Oracle's
implementation class in xschema.jar
xsdValidator.setSchema(schemadoc); //first validate the schema
System.out.println("XML schema validation completed");
Validator handler=new Validator();
XMLError xmlError=new XMLError();
xmlError.setErrorHandler(handler);
xsdValidator.setError(xmlError);- xsdValidator.validate(new URL(XmlDocumentUrl));//
validate the XML schema against the XML file
System.out.println("XML Document validation started");
if(handler.validationError==true)
{
System.out.println("XML Document has Error:"+handler.validationError+""+handler.saxParseException.getMessage());
}
else
{
flag = true;
System.out.println("XML Document is valid");
}
}
catch(java.io.IOException ioe)
{
System.out.println("IOException "+ioe.getMessage());
}
catch (SAXException e)
{
System.out.println("SAXException "+e.getMessage());
}
catch (XSDException e)
{
System.out.println("SAXException "+e.getMessage());
}
return flag;
}
private class Validator extends DefaultHandler
{
public boolean validationError = false;
public SAXParseException saxParseException=null;
public void error(SAXParseException exception) throws SAXException
{
validationError = true;
saxParseException=exception;
}
public void fatalError(SAXParseException exception) throws SAXException
{
validationError = true;
saxParseException=exception;
}
public void warning(SAXParseException exception) throws SAXException
{
}
}
}
- XML Schema
- <?xml version="1.0" encoding="utf-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="creditcardpayment">
<xs:complexType>
<xs:sequence>
<xs:element name="paymentamount" type="xs:string"/>
<xs:element name="paymentdate" type="xs:string"/>
<xs:element name="paymentdesc" type="xs:string"/>
<xs:element ref="customer" minOccurs="1" maxOccurs="1"/>
<xs:element ref="creditcardinfo" minOccurs="1" maxOccurs="1"/>
</xs:sequence>
<xs:attribute name="payerid" type="xs:positiveInteger"/>
</xs:complexType>
</xs:element>
<xs:element name="customer">
<xs:complexType>
<xs:sequence>
<xs:element name="firstname" type="xs:string"/>
<xs:element name="lastname" type="xs:string"/>
<xs:element ref="address" minOccurs="1" maxOccurs="1"/>
</xs:sequence>
<xs:attribute name="customerid" type="xs:positiveInteger"/>
</xs:complexType>
</xs:element>
<xs:element name="address">
<xs:complexType>
<xs:sequence>
<xs:element name="street1" type="xs:string"/>
<xs:element name="street2" type="xs:string"/>
<xs:element name="city" type="xs:string"/>
<xs:element name="state" type="xs:string"/>
<xs:element name="zip" type="xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="creditcardinfo">
<xs:complexType>
<xs:sequence>
<xs:element name="cardnumber" type="xs:string"/>
<xs:element name="cardtype" type="xs:string"/>
<xs:element name="expirydate" type="xs:string"/>
<xs:element name="securitycode" type="xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
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