Hi Pau, There are many ways you can do this.
For example... You could use the standard JAXP methods [1][2]. There are Xerces specific properties [3][4] you can set. You could supply a grammar pool [5]. [1] http://xerces.apache.org/xerces2-j/faq-pcfp.html#faq-4 [2] http://xerces.apache.org/xerces2-j/samples-jaxp.html#SourceValidator [3] http://xerces.apache.org/xerces2-j/properties.html#schema.external-schemaLocation [4] http://xerces.apache.org/xerces2-j/properties.html#schema.external-noNamespaceSchemaLocation [5] http://xerces.apache.org/xerces2-j/faq-grammars.html Michael Glavassevich XML Parser Development IBM Toronto Lab E-mail: [EMAIL PROTECTED] E-mail: [EMAIL PROTECTED] "pau carre" <[EMAIL PROTECTED]> wrote on 02/26/2007 05:24:06 AM: > Hi, I am developing a simple generic (wsdl/schema-independent) SOAP > message validatior class that uses Xerces. > The problem I have is that I use an string based schema (not an URI > nor a file) because I want to use WSDL's schema. The validation only > works when an schema location is specified in the XML instance: > > <fi:fish > xmlns:fi="http://globalip:8080/fish"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xsi:schemaLocation="http://globalip:8080/fish > http://192.168.82.29:8080/fisherWS/fish.xsd";> > > But I would like it to work without schema location: > <fi:fish > xmlns:fi="http://globalip:8080/fish";> > > I have been reading the Xerces doc (properties and features) and I > coded the config in such a way: > private String VALIDATION = "http://xml.org/sax/features/validation";; > private String SCHEMA = "http://apache.org/xml/features/validation/schema";; > private String SCHEMA_FULL_CHECKING = > "http://apache.org/xml/features/validation/schema-full-checking";; > private String WARN_ON_DUPLICATE_ATTDEF = > "http://apache.org/xml/features/validation/warn-on-duplicate-attdef";; > > parser.setFeature(LOAD_EXTERNAL_DTD, true); > parser.setFeature(VALIDATION, true); > parser.setFeature(SCHEMA, true); > parser.setFeature(SCHEMA_FULL_CHECKING, true); > parser.setFeature(WARN_ON_DUPLICATE_ATTDEF, true); > > Thanks in advance, > Pau > > The full source code is: > > import org.w3c.dom.*; > import java.io.FileNotFoundException; > import java.net.UnknownHostException; > import org.w3c.dom.Element; > import org.xml.sax.SAXParseException; > import org.xml.sax.SAXException; > import org.xml.sax.ErrorHandler; > import org.xml.sax.helpers.XMLReaderFactory; > import org.xml.sax.InputSource; > import java.io.StringReader; > import javax.xml.soap.SOAPBody; > import org.xml.sax.XMLReader; > import javax.xml.soap.SOAPEnvelope; > import org.apache.axis.MessageContext; > import org.apache.catalina.util.SchemaResolver; > import org.xml.sax.helpers.DefaultHandler; > import java.io.IOException; > import org.apache.tomcat.util.digester.Digester; > > public class SOAPvalidator { > private String VALIDATION = "http://xml.org/sax/features/validation";; > > private String SCHEMA = "http://apache.org/xml/features/validation/schema";; > > /** > * String constant used for the schema full checking feature of the Xerces > * parser. > * > * @build 10 > */ > private String SCHEMA_FULL_CHECKING = > "http://apache.org/xml/features/validation/schema-full-checking";; > > /** > * String constant used for the warn on duplicate attribute definition > * feature of the Xerces parser. > * > * @build 10 > */ > private String WARN_ON_DUPLICATE_ATTDEF = > "http://apache.org/xml/features/validation/warn-on-duplicate-attdef";; > > /** > * String constant used for the warn on undeclared element definition > * feature of the Xerces parser. > * > * @build 10 > */ > private String LOAD_EXTERNAL_DTD = > "http://apache.org/xml/features/nonvalidating/load-external-dtd";; > > // Name of the parser to use to create the xmlReader. > String parserName = "org.apache.xerces.parsers.SAXParser"; > > XMLReader parser = null; > > DefaultHandler defaultHandler = null; > > public SOAPvalidator() { > try { > parser = XMLReaderFactory.createXMLReader(parserName); > // load schema\dtd > parser.setFeature(LOAD_EXTERNAL_DTD, true); > // turn on validation > parser.setFeature(VALIDATION, true); > parser.setFeature(SCHEMA, true); > parser.setFeature(SCHEMA_FULL_CHECKING, true); > parser.setFeature(WARN_ON_DUPLICATE_ATTDEF, true); > defaultHandler = new SAXErrorHandler(); > } catch (Exception e) { > > } > } > > public void validateSOAPmessage() { > try { > MessageContext context = org.apache.axis.MessageContext > .getCurrentContext(); > SOAPEnvelope env = context.getRequestMessage().getSOAPEnvelope(); > SOAPBody sb = env.getBody(); > System.out.println("SB fc: " + sb.getLastChild()); > String XMLinstance = sb.getLastChild().toString(); > SAXErrorHandler errorHandler = new SAXErrorHandler(); > validateFile(new InputSource(new > StringReader(XMLinstance)), errorHandler); > } catch (Exception e) { > > } > } > > public void validateFile(InputSource source, DefaultHandler handler) > throws SAXException, IOException { > Digester digester = new Digester(parser); > > // make schema resolver so the parser knows where to find the schema > SchemaResolver resolver = new SchemaResolver(digester); > > parser.setEntityResolver(resolver); > parser.setErrorHandler(handler); > > // parsing the file with validation turned on no content handler needed > parser.parse(source); > > } > > } > > /** > * This class is used to handle any errors that occur durring parsing. > * > * @build 10 > */ > class SAXErrorHandler extends DefaultHandler { > /** > * Called by parser when an error is encountered while parsing > the XML file. > * > * @build 10 > * @param ex > * is th exception that describes the error > */ > public void error(SAXParseException ex) { > System.out.println("SOAP message error: " + ex.getMessage()); > // parseError.append("\n"); > // parseError.append(ex.getMessage()); > // errorCount++; > } > > /** > * Called by parser when an fatalError is encountered while parsing the XML > * file. > * > * @build 10 > * @param ex > * is th exception that describes the error > */ > public void fatalError(SAXParseException ex) { > System.out.println("SOAP message fatal error: " + ex.getMessage()); > > // parseError.append("\n"); > // parseError.append(ex.getMessage()); > // errorCount++; > } > > /** > * Called by parser when an warning is encountered while parsing the XML > * file. > * > * @build 10 > * @param ex > * is th exception that describes the error > */ > public void warning(SAXParseException ex) { > System.out.println("SOAP message warning: " + ex.getMessage()); > > // parseError.append("\n"); > // parseError.append(ex.getMessage()); > // errorCount++; > } > } > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
