Alberto: Thankyou very much. The code now works, and correctly flags up validation errors in the XML. Much appreciated. (We have spent a lot of time chasing this, so it is a relief to finally get it working.)
Leif Alberto Massari wrote: > > Hi Leif, > there is an extra setting missing: > > parser->setValidationScheme(SAXParser::Val_Auto); // or Val_Always, > if you prefer > > Alberto > > Leif Goodwin ha scritto: >> Alberto. Apologies for missing your comment. (Easily done since they were >> embedded in long quotes.) I corrected the code and found that the >> setExternalSchemaLocation method cannot cope with folder names that >> contain >> whitespace. Moving the schema to a new file location, or replacing each >> space with %20, and trying the new code, it still does not work. The >> extra >> illegal child element in the root element is not picked up as an error. >> Incidentally we use a schema with a targetNamespace. >> >> Test XML file: >> >> <?xml version="1.0"?> >> <driller-data >> xmlns="http://tempuri.org/DrillerData_1.0.xsd"; >> date="8 July 2009" drill-unit="Mickey Mouse" driller = "Joe Smith" >> shot-point-number="1" drill-depth="10.5" drill-type="conventional"> >> <dummy test="4"/> >> </driller-data> >> >> Test schema file: >> >> <?xml version="1.0" encoding="UTF-8"?> >> <xs:schema targetNamespace="http://tempuri.org/DrillerData_1.0.xsd"; >> elementFormDefault="qualified" >> xmlns="http://tempuri.org/DrillerData_1.0.xsd"; >> xmlns:xs="http://www.w3.org/2001/XMLSchema";> >> <xs:element name="driller-data"> >> <xs:complexType> >> <xs:attribute name="date" type="xs:dateTime"/> >> <xs:attribute name="drill-unit" type="xs:string" /> >> <xs:attribute name="driller" type="xs:string" /> >> <xs:attribute name="shot-point-number" type="xs:int" /> >> <xs:attribute name="drill-depth" type="xs:float" /> >> <xs:attribute name="drill-type"> >> <xs:simpleType> >> <xs:restriction base="xs:string"> >> <xs:enumeration value="conventional" /> >> <xs:enumeration value="lightway" /> >> </xs:restriction> >> </xs:simpleType> >> </xs:attribute> >> </xs:complexType> >> </xs:element> >> </xs:schema> >> >> As you can see the schema allows some attributes and no child elements. >> >> And to avoid misundertandings, the code: >> >> /* actual xerces work */ >> char *xml_file = "D:\\Development\\Chronicle\\Example Schemas and >> Form >> Templates\\DrillData_1.xml"; >> char *xml_schema = "D:\\Development\\Chronicle\\Example Schemas and >> Form >> Templates\\newDrillData.xsd"; >> SAXParser *parser = new SAXParser(); >> >> CSaxParserErrorHandler errorHandler; >> parser->setErrorHandler(&errorHandler); >> >> parser->setDoNamespaces(true); >> parser->setDoSchema(true); >> >> >> try >> { >> >> parser->setExternalSchemaLocation("http://tempuri.org/DrillerData_1.0.xsd >> D:\\Development\\Chronicle\\Example%20Schemas%20and%20Form%20Templates\\newDrillData.xsd"); >> //parser->setExternalNoNamespaceSchemaLocation (xml_schema); >> parser->parse(xml_file); >> return true; >> } >> catch (const XMLException &e) { >> char *message = XMLString::transcode(e.getMessage()); >> //qDebug() << "XML Exception is: " << message << endl; >> XMLString::release(&message); >> } >> catch(...) >> { >> //qDebug() << "XML Unexpected exception" << endl; >> } >> >> Corrupting the XML file so that the XML is not well formed e.g. remove >> the >> <driller-data> line, and an error is indicated. >> >> Leif >> >> >> >> >> Alberto Massari wrote: >> >>> It looks you didn't read my e-mail; I said >>> >>> "Furthermore, in order to use schema, you should invoke >>> setDoSchema(true) >>> Finally, change the setExternalSchemaLocation to be >>> setExternalNoNamespaceSchemaLocation (or, if schema.xsd is using a >>> targetNamespace, change the argument of setExternalSchemaLocation to be >>> "uri schema.xsd") " >>> >>> Alberto >>> >>> Leif Goodwin ha scritto: >>> >>>> We've tried the above code and it does not validate the XML file. All >>>> it >>>> does >>>> is check that it is well formed. Here is the hacked code: >>>> >>>> /* initialize xerces system before usig API: DOM, SAX, SAX2 */ >>>> try { >>>> xercesc::XMLPlatformUtils::Initialize(); >>>> } >>>> catch (const XMLException &e) { >>>> char *message = XMLString::transcode(e.getMessage()); >>>> //qDebug() << "Error during XML initialization: " << message << >>>> endl; >>>> XMLString::release(&message); >>>> //return; >>>> } >>>> >>>> /* actual xerces work */ >>>> char *xml_file = "D:\\Development\\Chronicle\\Example Schemas and >>>> Form >>>> Templates\\DrillData_1.xml"; >>>> char *xml_schema = "D:\\Development\\Chronicle\\Example Schemas and >>>> Form >>>> Templates\\newDrillData.xsd"; >>>> SAXParser *parser = new SAXParser(); >>>> >>>> CSaxParserErrorHandler errorHandler; >>>> parser->setErrorHandler(&errorHandler); >>>> >>>> //parser->setDoValidation(true); >>>> parser->setDoNamespaces(true); >>>> >>>> try >>>> { >>>> parser->setExternalSchemaLocation(xml_schema); >>>> parser->parse(xml_file); >>>> return true; >>>> } >>>> catch (const XMLException &e) >>>> { >>>> char *message = XMLString::transcode(e.getMessage()); >>>> //qDebug() << "XML Exception is: " << message << endl; >>>> XMLString::release(&message); >>>> } >>>> catch(...) >>>> { >>>> //qDebug() << "XML Unexpected exception" << endl; >>>> } >>>> >>>> delete parser; >>>> //delete doc_handler; >>>> >>>> /* terminate and cleanup */ >>>> XMLPlatformUtils::Terminate(); >>>> >>>> The XML file purposefully has an extra element which is not allowed by >>>> the >>>> schema. But the parser accepts it. >>>> >>>> Here is the quickly knocked together error handler: >>>> >>>> class CSaxParserErrorHandler : public xercesc_3_0::ErrorHandler >>>> { >>>> virtual void warning(const SAXParseException& exc); >>>> virtual void error(const SAXParseException& exc); >>>> virtual void fatalError(const SAXParseException& exc); >>>> void resetErrors() >>>> { >>>> } >>>> >>>> }; >>>> >>>> void CSaxParserErrorHandler::warning(const SAXParseException& exc) >>>> { >>>> CReport::Warning( >>>> "File: %s, line %d, column %d : %s", >>>> StrX(exc.getSystemId()), >>>> (int)exc.getLineNumber(), >>>> (int)exc.getLineNumber(), >>>> StrX(exc.getMessage())); >>>> } >>>> >>>> void CSaxParserErrorHandler::error(const SAXParseException& exc) >>>> { >>>> CReport::Error( >>>> "File: %s, line %d, column %d : %s", >>>> StrX(exc.getSystemId()), >>>> (int)exc.getLineNumber(), >>>> (int)exc.getLineNumber(), >>>> StrX(exc.getMessage())); >>>> } >>>> >>>> void CSaxParserErrorHandler::fatalError(const SAXParseException& exc) >>>> { >>>> CReport::Error( >>>> "(Fatal Error) File: %s, line %d, column %d : %s", >>>> StrX(exc.getSystemId()), >>>> (int)exc.getLineNumber(), >>>> (int)exc.getLineNumber(), >>>> StrX(exc.getMessage())); >>>> } >>>> >>>> >>>> >>> --------------------------------------------------------------------- >>> 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] > > > -- View this message in context: http://www.nabble.com/validating-xml-with-xsd-schema-tp23315036p23522096.html Sent from the Xerces - C - Dev mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
