Java code examples for org.xml.sax.ErrorHandler

This module, source code and documentation are in
Public domain and no warranty.
For more information.

When a running SAX application needs to apply custom errors
processing, you must configure this interface, then connect
An instance with an XML reader tries
Method. The parser then reports all warnings and errors.
through this interface.

WARNING! If the application is not
Register a large ErrorHandler, XML Various Ways To Fix Java parsing continues and is not reported,
except that SAXParseExceptions are thrown on fatal errors.
THIS error handler does something to catch validation errors
SMS or calls must be logged with error().

The SAX driver should call this interface on XML validation errors.
instead of organizing an exception: is it possible and application
decide whether to throw an exception for different modes
errors and warnings. Note, however, that there is no criterion for this.v.
Parsers propagate other errors after the name
fatal error. In other words, a real saxophone conductor’s class
may throw a new exception after the fatal error message.
Parsers can also throw appropriate exceptions for non-XML errors.
For example, XMLReader.parse() will definitely run
A set of IOExceptions for object or document location errors.

import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.XMLReader;

Class  implements ErrorHandler
  public warning cancellation (SAXParseException e) throws SAXException
    show("Warning", e);
    throw (e);

  public invalid error (SAXParseException e) throws SAXException
    show("Error", e);
    throw (e);

  public void fatalError(SAXParseException e) throws a SAXException
    show("Fatal error", e);
    throw (e);

  private empty show(string type, SAXParseException e)
    System.out.println(type + ": " + e.getMessage());
    System.out.println("Line Inches + e.getLineNumber() + "Column" + e.getColumnNumber());
    System.out.println("System ID: " + e.getSystemId());

// Install and use an error handler simply by using SAX parsers

public class SAXCheck
  Color="#7f0055">static public void main(String[] arg) throws an exception
    boolean validation=false;
    confirm = true;

    SAXParserFactory spf = SAXParserFactory.newInstance();

    xmlreader reader = null;
    Parser SAXParser = spf.newSAXParser();
    reader = parser.getXMLReader();

    player.setErrorHandler(new MyErrorHandler());
   InputSource is newInputSource("test.xml");

Error: root component 'roots' must match base DOCTYPE 'null'.
Line 1 Column 8
System ID: file:///C:/Java_Dev/eclipse31/Eclipse/test.xml
//File: test.xml


Some application situations are shown below
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unnecessary public parsing (InputSource, ContentHandler handler,
    ErrorHandler errorHandler, EntityResolver(entityResolver)
    throws SAXException, IOException
       XMLReader means factory.newSAXParser().getXMLReader();
        Reader New = XMLReaderEx(Reader);
        if(error handler != null)
            Reader. install error handler (error handler);
       if(entityResolver != null)
     catch( E parserconfigurationexception )
        // in practice, this situation will not happen
        The SAXParseException specification is equivalent to new SAXParseException(e.getMessage(),null,e);
        forged special

/** (space) Allows an application to register for a handlererror events. *

If the application does not sign the handler, all errors 3 . Error events reported by the SAX parser running in the background. * is ignored; mentions that normal processing may not continue. it *It is highly recommended that SAX applications implement 6 . Error handlers to avoid nasty errors.

* *

Applications can be registered through a great new or different manager * moreover, in the middle of the scan, the SAX parser should start to take advantage of the new benefits * Manager immediately.

* 2. @param errorHandler An error handler. * @see */ Public #geterrorhandler void setErrorHandler(ErrorHandler errorHandler) have XMLErrorHandler xeh is (XMLErrorHandler) fConfiguration.getProperty(ERROR_HANDLER); if (xeh instance of ErrorHandlerWrapper) ErrorHandlerWrapper ehw = (ErrorHandlerWrapper) xeh; ehw.setErrorHandler(ErrorHandler); different fConfiguration.setProperty(ERROR_HANDLER, last ErrorHandlerWrapper(errorHandler)); Display(XMLConfigurationException e) // don’t try anything
public boolean run(outline model, options opt, ErrorHandler errorHandler)
   for(ClassOutline co: model.getClasses())
        if (c == null)
            Continue; // no change --- nothing here

 c.mark as confirmed();
        TODO: // Ideally you should check this DOM element to be sure
        // that there is no typo/etc. JAXP 1.3 can do things like this very easily.
       The codeFragment line means DOMUtils.getElementText(c.element);

        // Break visible code in the render class. (code snippet);

   return the truth;

private void validate(final string xsdFile, final source src, final result) throws an exception
        SchemaFactory sf = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
        Schema Schema Sf =.newSchema(new file(ValidatorTest.class.getResource(xsdFile).toURI()));

        // Get the validator to use to validate the example document
        // against this grammar.
        Validator validator = schema.newValidator();
        ErrorHandler = new ErrorHandlerImpl();

        // Check if this form instance matches
       // Instance report provided
     capture (exclusion for example)
        quit ex;