Hi friends,
Im facing problem in validating xml file against a schema with Xerces 2.9.0. I
am new to this xml validation field.
My Problem is my DOM Parser do not log all the well Formed errors. It only log
one fatal error that is first from the bottom of the xml file. If I introduced
two well formed error then it only reports last error(first from the bottom of
the xml doc)But I need it to log all the fatal errors. When there is one fatal
error (well formed error) in the xml file then it only reports simple errors
like data type mismatch that occurs after source of the fatal error. Setting
feature continue-after-fatal error did not work.
The (relevant portion of the) XML document follows:***************
<?xml version="1.0" encoding="UTF-8"?>
<rootDirMapping>
<rootDir>AppData</rootDir>
<mappingFile>MappingFiles</mappingFile>
<schemaFile>SchemaFiles</schemaFile>
<validationHierarchy>1hierarchy</validationHierarchy>
<database>database</database>
</rootDirMapping>
The (relevant portion of the) XML schema follows:
<?xml version="1.0" encoding="utf-8"?>
<xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified"
xmlns:xs="http://www.w3.org/2001/XMLSchema";>
<xs:element name="rootDirMapping">
<xs:complexType>
<xs:sequence>
<xs:element name="rootDir" type="xs:string" />
<xs:element name="mappingFile"
type="xs:integer" />
<xs:element name="schemaFile" type="xs:integer"
/>
<xs:element name="validationHierarchy"
type="xs:string" />
<xs:element name="database" type="xs:integer" />
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
*************************************************************
The (relevant portion of the) Java Code follows:
public static boolean validateWithSchema(String XMLFile, String Schema){
boolean result = true;
long startTime = System.currentTimeMillis();
// Instantiate the DOM parser.
DOMParser parser = new DOMParser();
// set the features
try{
parser.setFeature("http://xml.org/sax/features/namespaces",true);
parser.setFeature("http://xml.org/sax/features/validation",true);
parser.setFeature("http://apache.org/xml/features/validation/schema",true);
parser.setFeature("http://apache.org/xml/features/validation/schema-full-checking",true);
parser.setFeature("http://apache.org/xml/features/continue-after-fatal-error";,
true);
parser.setProperty("http://apache.org/xml/properties/schema/external-noNamespaceSchemaLocation",Schema);
// myErrorHandler is a descendant of ErrorHandler, it should
be set here to be able to catch parse errors
forgivingErrorHandler hndl = new forgivingErrorHandler();
parser.setErrorHandler(hndl);
} catch (SAXNotSupportedException ex){
System.out.println("SAXNotSupportedException
Exception");
} catch (SAXNotRecognizedException ex){
System.out.println("SAXNotRecognizedException
Exception");
}
// parse the xml file, the errorhandler class has callbacks,
// so those will be called automatically there is a parse error
try{
parser.parse(XMLFile);
//System.out.println("Parsed Successfully by DOM Parser");
} catch (org.xml.sax.SAXException ex){
System.out.println("SAXException Exception");
ex.printStackTrace();
} catch (java.io.IOException ex){
System.out.println("IOException Exception");
}
return result;
}
The (relevant portion of the) Java Code for Error Handler follows:
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
public class forgivingErrorHandler implements org.xml.sax.ErrorHandler {
public forgivingErrorHandler() {}
public void error(org.xml.sax.SAXParseException err) throws
SAXException {
FileWriter fstream;
try {
String
fs="D:\\WORKSPACE\\xmlValidation\\ExceptionLogs\\Errors.txt";
fstream = new FileWriter(fs,true);
PrintWriter out = new PrintWriter(fstream);
out.write("Exception
at:"+err.getLineNumber()+"***"+err.getMessage()+"\n\n\n");
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public void fatalError(org.xml.sax.SAXParseException fe) throws
SAXException {
FileWriter fstream;
try {
String
fs="D:\\WORKSPACE\\xmlValidation\\ExceptionLogs\\FatalErrors.txt";
fstream = new FileWriter(fs,true);
PrintWriter out = new PrintWriter(fstream);
out.write("Exception
at:"+fe.getLineNumber()+"***"+fe.getMessage()+"\n\n\n");
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public void warning(org.xml.sax.SAXParseException war) throws
SAXException {
FileWriter fstream;
try {
fstream = new
FileWriter("D:\\WORKSPACE\\xmlValidation\\ExceptionLogs\\Warnings.txt",true);
PrintWriter out = new PrintWriter(fstream);
out.write("Exception
at:"+war.getLineNumber()+"***"+war.getMessage()+"\n\n\n");
out.close();
} catch (IOException e) {
System.out.println("Here are we in the Warning
section....");
e.printStackTrace();
}
}
}
Unfortunately, when I try to validate the above XML document against the
Schema, it throws errors as I explained above
only one fatal error som times
errors those are occurred after the fatal error(before the fatal error from
bottom.)
After several long searches in the web, I could not find any solution.
Please help me or please let me know where to find an answer.
Kind regards and please apologize if this question already appeared in the
mailing list, but -- again -- all I found/read about this problem didn't
suffice.
Vineet Rajput
Software Engineer
Snap-On Business Solution
Logix Techno Park,
Noida,INDIA
