XML validation with an external Schema

Hi all,
i'm testing some EJBs under oc4j and I have problems validating some XML documents against an external Schema file.
The code only uses JAXP classes and interfaces and it's already running with other application servers.
The code is:
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
dbf.setValidating(true);
dbf.setAttribute("http://java.sun.com/xml/jaxp/properties/schemaLanguage",
"http://www.w3.org/2001/XMLSchema");
The setAttribute method of the DocumentBuilderFactory throws an IllegalArgumentException meaning that this feature is not supported.
Is that true?
Someone knows another way to perform this validation without hardcoding Oracle libraries' specific code?
Thanks
F

Similar Messages

XML Validation with multiple XSD files (referenced)

Hello,
I know that XML validation with version 7.1 is possible now. However I was provided with a set of XSD files that have references to each other and need to be placed in a hierachical file system order so that references can be resolved.
An element <xsl:include schemaLocation="../../baseSchemas/baseSchema.xsd" /> is used for example. How can I handle that for XSD validation in PI? Can I create the same folder structure or do I need to put all XSD files in one directory and change the import manually?
But most important question: Is it possible it all to use more than one XSD for schema validation?

Dear Florian,
I had encountered such case in a project.
I was given 3 files. One main file and 2 others called Schema1.xsd and Schema2.xsd.
This happens because your data type is not in single namespace, but is being referred across namespaces and software components.
I am assuming that you have read the How to Guide for XML validations on PI 7.1
Best way to do this quickly is as follows.
1. Enable XML validation at adapter engine in the sender agreement.
2. Post a message using HTTP post. (http://sappihttpclient.codeplex.com)
3. Check communication channel in runtime workbench. There will be an error saying which is missing at what path.
4. Create the path mentioned and place the file at that path.
5. Repeat steps 2,3,4 for all the files.
When you are done with this, you will get a proper validation error in case XML file is not correct. And remember to generate XSD from message type and not data type.
Regards,
Vikas
Edited by: Vikas Aggarwal on Sep 2, 2009 8:45 PM
Edited by: Vikas Aggarwal on Sep 2, 2009 8:48 PM

XML Validation with DTD... Urgent

Hi all,
I am using java 1.4
I have to validate the XML file with the external DTD.
Can anyone give me the code for that.
DTD should be external.
Thanks,
Vinayak.

If you are using Solaris , it has xml validation tool "xmllint", using this you can validate your xml against DTD.
try with "xmllint --help " to see all the option.
Message was edited by:
sasrivas

XML Validation with External XSD

Hi
I have a xml file having DTD declaration, but my requirment is to validate this xml file with External XSD not with DTD which is declared inside the file.
on executing java code below it is looking for DTD. how to supress validating against dtd.
SAXParserFactory factory = SAXParserFactory.newInstance();
               factory.setValidating(false);
               factory.setNamespaceAware(true);
               SchemaFactory schemaFactory =
                   SchemaFactory.newInstance("http://www.w3.org/2001/XMLSchema");
               factory.setSchema(schemaFactory.newSchema(
                   new Source[] {new StreamSource("C:\\vittal\\Project\\received\\development-1\\da_xsd\\daAuthoring.xsd")}));
               SAXParser parser = factory.newSAXParser();
               XMLReader reader = parser.getXMLReader();
               reader.setErrorHandler(new LogErrorHandler());
               reader.parse(new InputSource("C:\\vittal\\Project\\received\\A-ADD\\DAContentExamples_2\\SampleGuidance_1.xml"));error i am getting is License file saxon-license.lic not found. Running in non-schema-aware mode
java.io.FileNotFoundException: C:\vittal\Project\received\A-ADD\DAContentExamples_2\daAuthoring.dtd (The system cannot find the file specified)

Hi
I have a xml file having DTD declaration, but my requirment is to validate this xml file with External XSD not with DTD which is declared inside the file.
on executing java code below it is looking for DTD. how to supress validating against dtd.
SAXParserFactory factory = SAXParserFactory.newInstance();
               factory.setValidating(false);
               factory.setNamespaceAware(true);
               SchemaFactory schemaFactory =
                   SchemaFactory.newInstance("http://www.w3.org/2001/XMLSchema");
               factory.setSchema(schemaFactory.newSchema(
                   new Source[] {new StreamSource("C:\\vittal\\Project\\received\\development-1\\da_xsd\\daAuthoring.xsd")}));
               SAXParser parser = factory.newSAXParser();
               XMLReader reader = parser.getXMLReader();
               reader.setErrorHandler(new LogErrorHandler());
               reader.parse(new InputSource("C:\\vittal\\Project\\received\\A-ADD\\DAContentExamples_2\\SampleGuidance_1.xml"));error i am getting is License file saxon-license.lic not found. Running in non-schema-aware mode
java.io.FileNotFoundException: C:\vittal\Project\received\A-ADD\DAContentExamples_2\daAuthoring.dtd (The system cannot find the file specified)

XML validation with JDOM / JAXP

Hello,
I am trying to validate xml file against schema file. I decided to use JDOM and JAXP.
First question: is it a good choice?
I did a first attempt but not sure I have understood all what I am doing :(
First I have create a parser usinf org.jdom.*
SAXBuilder parser = new SAXBuilderThen I built my document:
Document doc = parser.build(myFile)These 2 steps are ok. But it does not do validation.
I saw in the JDOM documentation that I can set a validation flag to true. I did it. First problem, I got the following error from JDOMException: Document is invalid: no grammar found.
Is there a way to specify to the parser where to find the xsd file?
As I did not find answer to this question by myself, I tried implementing the Schema class from JAXP:
SAXBuilder parser = new SAXBuilder;
Document doc = parser.build(myFile);
Schema schema = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI).newSchema(schemaFile);
ValidatorHandler vh = schema.newValidatorHandler();
SAXOutputter so = new SAXOutputter(vh);
so.output(doc);It does the validation against the schema file specified but I am not really sure about what I am doing here. The last 2 commands are not clear to me :(
Then in my schema file, I have elements that have default value. I expected the following behavior: if the element is not in the xml file then the default will be used by the parser (and added in the tree). But it seems, it's not the case.
Any help/explanation will be really appreciated.

I am trying to validate xml file against schema file. I decided to use JDOM and JAXP.
First question: is it a good choice?
If only schema validation is required use the validation API in JDK 5.0.
http://www-128.ibm.com/developerworks/xml/library/x-javaxmlvalidapi.html
http://java.sun.com/developer/technicalArticles/xml/validationxpath/
For validation with JDOM, the following validation application explains the procedure:import org.jdom.input.SAXBuilder;
import org.xml.sax.SAXException;import org.jdom.*;
import java.io.*;
public class JDOMValidator{
public void validateSchema(String SchemaUrl, String XmlDocumentUrl){
           try{
SAXBuilder saxBuilder = new SAXBuilder("org.apache.xerces.parsers.SAXParser",true);<br/>saxBuilder.setValidation(true);
saxBuilder.setFeature("http://apache.org/xml/features/validation/schema",true);
saxBuilder.setFeature("http://apache.org/xml/features/validation/schema-full-checking",true);
saxBuilder.setProperty("http://apache.org/xml/properties/schema/external-noNamespaceSchemaLocation",SchemaUrl);
Validator handler=new Validator();
saxBuilder.setErrorHandler(handler);
saxBuilder.build(XmlDocumentUrl);
if(handler.validationError==true)
System.out.println("XML Document has Error:"+handler.validationError+""+
handler.saxParseException.getMessage());
else
      System.out.println("XML Document is valid");
          }catch(JDOMException jde){
            }catch(IOException ioe){
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       {
public static void main(String[] argv)   {
   String SchemaUrl=argv[0];StringXmlDocumentUrl=argv[1];
   JDOMValidator validator=new JDOMValidator();
   validator.validateSchema(SchemaUrl,XmlDocumentUrl);
}

XML validation with DTD in java 1.5 not supporting

Hi,
I am facing a problem regarding validation of xml file with DTD tag in it.
I have disabled the parser through setValidating(false) method.
xml file is not parsed in JRE 1.5.but it is parsed in JRE 1.6.
Why this is showing such a behavior?
I have used xerces 2.9.0,xml-api.jar and other jar regarding XML api but still it is giving error.
please help me.
please provide a jar file name or its issue resolution in jre 1.5 or 1.4.

thanks for your prompt reply.
I required that it should be completely disabled in jre 1.5(jdk1.5 or 1.4).
I am using DOM Parsing.I have currently disabled with follwowing method,
builderFactory.setValidating(false);
builderFactory.setFeature("http://xml.org/sax/features/validation",
     false);
     builderFactory.setFeature("http://apache.org/xml/features/nonvalidating/load-dtd-grammar", false);
     builderFactory.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd",false);
     builderFactory.setFeature("http://xml.org/sax/features/external-general-entities", false);
     builderFactory.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
     factory.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
in 1.6 it is working fine but I required that i have to disabled it.but it is giving a error in jre1.5.
Exception in thread "main" java.lang.AbstractMethodError: javax.xml.parsers.DocumentBuilderFactory.setFeature(Ljava/lang/String;Z)V
I just want to disable the parsing in jdk version 1.5 or 1.4
thanks in advance
anand

Generating XML content with SAX including schema reference

Hi all, XML newbie question here.
I'm trying to generate an XML document from a certain file format using SAX, but I can't figure out how to get the generated XML document to include a schema reference.
Here's the code, it's taken from posts on this forum, so it should be familiar:
StreamResult streamResult = new StreamResult(out);
        SAXTransformerFactory tf = (SAXTransformerFactory) SAXTransformerFactory.newInstance();
        try {
            TransformerHandler hd = tf.newTransformerHandler();
            Transformer serializer = hd.getTransformer();
            serializer.setOutputProperty(OutputKeys.ENCODING, "ISO-8859-1");
            serializer.setOutputProperty(OutputKeys.INDENT, "yes");
            hd.setResult(streamResult);
            hd.startDocument();
            AttributesImpl atts = new AttributesImpl();
            hd.startElement("http://maul.ddm.apm.bpm.eds.com", "DTR_XML", "DTR_XML", atts);
            hd.endElement("http://maul.ddm.apm.bpm.eds.com", "DTR_XML", "DTR_XML");
            hd.endDocument();
        } catch (SAXException e) {
            e.printStackTrace();
        } catch (TransformerConfigurationException e) {
            e.printStackTrace();
        }Here's the output I get:
<?xml version="1.0" encoding="ISO-8859-1"?>
<DTR_XML/>
And I'm looking for output like this (I think - basically I have this dtr_xml.xsd located at the root web directory on http://maul.ddm.apm.bpm.eds.com and I want the generated XML file to reference that schema for validation when parsing):
<?xml version="1.0" encoding="ISO-8859-1"?>
<DTR_XML xmlns="http://maul.ddm.apm.bpm.eds.com"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maul.ddm.apm.bpm.eds.com dtr_xml.xsd"/>

Yes, you've led me along the right track with the attributes stuff. Here's what I've got right now...
StreamResult streamResult = new StreamResult(out);
        SAXTransformerFactory tf = (SAXTransformerFactory) SAXTransformerFactory.newInstance();
        try {
            TransformerHandler hd = tf.newTransformerHandler();
            Transformer serializer = hd.getTransformer();
            serializer.setOutputProperty(OutputKeys.ENCODING, "ISO-8859-1");
            serializer.setOutputProperty(OutputKeys.INDENT, "yes");
            hd.setResult(streamResult);
            hd.startDocument();
            AttributesImpl atts = new AttributesImpl();
            atts.addAttribute("", "xmlns", "xmlns", "CDATA", "http://maul.ddm.apm.bpm.eds.com");
            atts.addAttribute("", "xsi", "xmlns:xsi", "CDATA", "http://www.w3.org/2001/XMLSchema-instance");
            atts.addAttribute("", "schemaLocation", "xsi:schemaLocation", "CDATA", "http://maul.ddm.apm.bpm.eds.com dtr_xml.xsd");
            hd.startElement("", "DTR_XML", "DTR_XML", atts);
            hd.endElement("", "DTR_XML", "DTR_XML");
            hd.endDocument();
        } catch (SAXException e) {
            e.printStackTrace();
        } catch (TransformerConfigurationException e) {
            e.printStackTrace();
        }This produces the output I wanted earlier...
As for the org.xml.sax.helpers.NamespaceSupport, I can't seem to find any documentation on using it anywhere, and the javadoc is cryptic to me. Maybe it's used internally in SAX for tracking namespaces or something like that.
Another interesting thing to me is that if I use the code you gave:
atts.addAttribute("http://www.w3.org/2001/XMLSchema-instance", "schemaLocation",
     "xsi:schemaLocation", "CDATA", "http://maul.ddm.apm.bpm.eds.com dtr_xml.xsd");I don't see "http://www.w3.org/2001/XMLSchema-instance" anywhere in the output. Is SAX ignoring the namespace uri argument? It appears so. The javadoc states that the uri argument is "The Namespace URI, or the empty string if none is available or Namespace processing is not being performed." It would appear that Namespace processing is not being done... but I don't know how to turn it on.

XML Validation with Sun Multischema XML Validator

Dear readers,
I am able to parse an XML file and validate it with a W3C-schema.
But has anyone ever tried and succeeded in validating a part of an XML file or DOMDocument? It should go with the Sun MultiSchema Validator.
Available @ http://wwws.sun.com/software/xml/developers/multischema/
If anyone has a nice working example for validating a part of an XML-file it would certainly come in handy!
I think it has something to do with that Acceptor interface...
Any help is welcome.
Regards
Bram

Solved the problem myself...
Dukedollars are removed.
You can use Sun multischema validator in combination with dom4j and
manipulate your XML doc in memory. And also validate on Node level!

XML validation with StAX

Hi,
I have a requirement to validate XMLs during JAXB unmarshalling and during StAX parsing. The schema is packaged in a jar. I am able to successfully read the schema, and validate the XML during unmarshalling by setting the schema in the unmarshaller (through setSchema()).
However, I am not able to validate it with StAX using the same schema and same XML.
Here is the code snippet for StAX:
StringReader stringReader = new StringReader(inputXMLStr);
XMLEventReader xmlEventReader = XMLInputFactory.newInstance().createXMLEventReader(stringReader);
EventFilter filter = new EventFilter() {
public boolean accept(XMLEvent event) {
return event.isStartElement();
XMLEventReader xmlFilteredEventReader = xmlif.createFilteredReader(xmlEventReader, filter);
Schema mySchema = getSchema(); // this method retrieves the schema by reading the schema files as
stream source and calling schemaFactory.newSchema(...)
Validator validator = mySchema.newValidator();
validator.setErrorHandler(new SchemaErrorHandler());
Source xmlSource = new StAXSource(xmlFilteredEventReader);
validator.validate(xmlSource);
I get a SAX Parse exception saying "cvc-elt.1: Cannot find the declaration of element 'myElement'"
And I also see the following exception:
Caused by: java.lang.NullPointerException
     at com.sun.org.apache.xalan.internal.xsltc.trax.StAXEvent2SAX.bridge(StAXEvent2SAX.java:171)
     at com.sun.org.apache.xalan.internal.xsltc.trax.StAXEvent2SAX.parse(StAXEvent2SAX.java:118)
     at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transformIdentity(TransformerImpl.java:651)
     at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:708)
     at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:313)
     at com.sun.org.apache.xerces.internal.jaxp.validation.StAXValidatorHelper.validate(StAXValidatorHelper.java:89)
     at com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorImpl.validate(ValidatorImpl.java:114)
     at javax.xml.validation.Validator.validate(Validator.java:127)
I am not able to figure out why the validation would work with UnMarshaller but not with StAX.
Any help appreciated.
Thanks
Meera

Have u tried the Stream STAX parser instead?
something like:
SchemaFactory factory = SchemaFactory
                         .newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
File schemaLocation = new File(XSD_FILE_PATH);
               Schema schema = factory.newSchema(schemaLocation);
// 3. Get a validator from the schema.
Validator validator = schema.newValidator();
ErrorHandler lenient = new ForgivingErrorHandler(fw);
validator.setErrorHandler(lenient);
XMLInputFactory staxFactory = XMLInputFactory.newInstance();
staxFactory.setProperty(XMLInputFactory.IS_REPLACING_ENTITY_REFERENCES,
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staxFactory.setProperty(XMLInputFactory.IS_SUPPORTING_EXTERNAL_ENTITIES,
                         Boolean.FALSE);
staxFactory.setProperty(XMLInputFactory.IS_NAMESPACE_AWARE,
                         Boolean.TRUE);
staxFactory     .setProperty(XMLInputFactory.IS_COALESCING, Boolean.TRUE);
FileInputStream fis = new FileInputStream(XML_FILE_PATH);
XMLStreamReader xmlr = staxFactory.createXMLStreamReader(fis);
validator.validate(new StAXSource(xmlr));

XML Validation with no connection to the internet

Hi,
I'm trying to validate a ml instance document against a xml schema, using the javax.xml.validation.Validator.validate() method. This works fine as long as I have an internet connection, but not when I disconnect from the internet it fails.
I've detected, using a network sniffer, that this is due to the fact that the validation process tries to fetch the XMLSchema.dtd and datatypes.dtd from w3.org. Is there any way to avoid this by prestoring these somewhere? So that the internet connection is not needed?
I need to be able to do validation without a connection to the internet since the environment where my application is deployed does not have such a connection.
Ray

Hi Ray,
Were you able to resolve this issue? I am encountering a very similar problem where I am not connected to the internet and it fails during the newSchema method on javax.xml.validation.SchemaFactory. I have attempted to implement the suggestions of ExtremeGardener and vidyut with no luck.
Per ExtremeGardener's suggestion of replacing xmlns:xs="http://www.w3.org/2001/XMLSchema" with xmlns:xs="XMLSchema.xsd" and storing it locally, it gave me an error for trying to set the "xs" or "xsd" prefixes to anything other than "http://www.w3.org/2001/XMLSchema." I forget the exact error. I also tried to use my own prefix and it did not like that either.
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I am currently using the SchemaFactory in Java 1.5, but I am thinking about trying the Xerces SchemaFactory since they are not exactly the same implementation.
Does anyone have any other suggestions? Any help you can provide would be greatly appreciated!
Thanks,
betzro1

Xerces2_6_2 validating with dtd and schema.. please help

Hi I am having trouble validating an xml document using xerces2_6_2
I have a DTD that containes only entity references, and a schema that is used to ensure the xml is valid.
I get this error.
Element type "my root tag" must be declared!
It seems to expect all validation grammer to be in the dtd. I have sucessfully validated with xml spy and oxygen,(oxygen uses xerces too).
This is a real pain I really would lie to take advantage of using schemas, I know I could just use entity references in this form and not have a dtd but this is really not acceptable.
I have tried out all the xerces specific properties and features but this has not worked either.
Perhaps I should implement a validator? Does anyone have any ideas?
thanks

My solution, I thought to take, wasn't the right way, but I have found following thread within the forum
http://forum.java.sun.com/thread.jspa?forumID=34&threadID=527461
The problem you have described points to a dtd error. Considering the thread above, it would make sense. It is a presumption, but perhaps that is because of the new Xerces version. I would try with an older one.
Sorry, that I could help you along.

XML Validation with Java

I have created a XML file with dom4j and the file confirmed to be valid when I read the file with Internet Explorer, a online XML validator and a free XML editor called "CookTop". However, when I attemp to read the XML file during the execution of an ant task I always get the XML parsing exception that one of my tag is not closed. I have even wrapped that test inside the tag as CDATA but that does not help as well. Do any one know what's happening? Here's my environment:
JDK: 1.4.2_05
Xerces: 2.6.2
Ant: 1.5.3
Thanks so much in advance.
I've been pumping my head into the wall for hours : p

Can i know where to download the CookTop?or CookTop2?

XML validating with XSD

Please clarify the following
1) To validate a XML output with a XSD is it necessary to register the xsd in the database?.
2) I tried running the below give command to register the .xsd file. It errored out with the below message. Do we need to some additional installation for having dbms_xmlschema in oracle database or am I missing something. My ver of oracle is 9.2.0.6.0.
ERROR at line 2:
ORA-06550: line 2, column 1:
PLS-00201: identifier 'DBMS_XMLSCHEMA.REGISTERSCHEMA' must be declared
BEGIN
DBMS_XMLSchema.registerSchema(
schemaurl=>'http://ifsddev.na.abc.com/home/vick/105564/batchuserimport.xsd',
schemadoc=>sys.UriFactory.getUri('/home/vick/105564/batchuserimport.xsd'));
END;

1) You could validate XML files against an XSD by using standard Java, PL/SQL, etc. functionality. Just to validate XML you do not need to register the schema in XDB. See e.g. http://www.oracle.com/technology/pub/articles/vohra_xmlschema.html
2) Also see: DBMS_XMLSCHEMA.REGISTERSCHEMA' must be declared to know whether XML DB has been installed/configured.
Regards, Ronald

XML output with UTF8 Encoding scheme

In external partner wants that we provide him an XML file with data, encoded in UTF8 format.
Using the SQL/XML functions I can construct the XML with the structure (shcema) he asks for.
But how can I guarantee that my XML-output is in UTF8, because our oracle database has been built in the default character set WE8ISO8859PI.
I suppose it is not enough to add in front off my document: <?xml version="1.0" encoding="UTF8"?> ?

Jan,
You may want to check on metalink for WE8iso8859P1 to see if it is a subset of UTF8. There are some documents on metalink that discuss the UTF8 character set and ways to pull differenct character sets and conversion from the database depending on what is stored in the database, or changing the database character set to UTF8.
Have you tried a test extract to see if the characters are correct?

XML validation with DTD

Hi Team,
I want to validate the XML content with DTD refered in the XML. I have problem now is my DTD are present in a jar file. How do I need to set systemid to the input source so that it works.
<!DOCTYPE test SYSTEM "test.dtd">
SAXParserFactory factory = SAXParserFactory.newInstance();
factory.setValidating(true);
factory.setNamespaceAware(true);
inputSource.setSystemId("path");
SAXParser parser = factory.newSAXParser();
XMLReader reader = parser.getXMLReader();
reader.setErrorHandler(new XmlValidationErrorHandler());
reader.parse(inputSource);
Regards
Richard

i believe the best way to handle that would be to set the EntityResolver on the XMLReader to your own implementation which loads the DTD from the jar.

XML validation with an external Schema

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